예제 #1
0
 def __init__(self, queue_config_mapper, single_mode=False):
     AgentBase.__init__(self, single_mode)
     self.queueConfigMapper = queue_config_mapper
     self.dbProxy = DBProxy()
     self.pluginFactory = PluginFactory()
     self.startTimestamp = time.time()
     self.monitor_fifo = MonitorFIFO()
     self.apfmon = Apfmon(self.queueConfigMapper)
예제 #2
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 def __init__(self, queue_config_mapper, single_mode=False):
     AgentBase.__init__(self, single_mode)
     self.queueConfigMapper = queue_config_mapper
     self.dbProxy = DBProxy()
     self.workerMaker = WorkerMaker()
     self.workerAdjuster = WorkerAdjuster(queue_config_mapper)
     self.pluginFactory = PluginFactory()
     self.monitor_fifo = MonitorFIFO()
     self.apfmon = Apfmon(self.queueConfigMapper)
예제 #3
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 def __init__(self, queue_config_mapper):
     self.queue_configMapper = queue_config_mapper
     self.pluginFactory = PluginFactory()
     self.dbProxy = DBProxy()
     self.throttlerMap = dict()
     self.apf_mon = Apfmon(self.queue_configMapper)
     try:
         self.maxNewWorkers = harvester_config.submitter.maxNewWorkers
     except AttributeError:
         self.maxNewWorkers = None
예제 #4
0
 def __init__(self, queue_config_mapper, single_mode=False):
     AgentBase.__init__(self, single_mode)
     self.queueConfigMapper = queue_config_mapper
     self.dbProxy = DBProxy()
     self.pluginFactory = PluginFactory()
     self.startTimestamp = time.time()
     self.monitor_fifo = MonitorFIFO()
     if self.monitor_fifo.enabled:
         self.monitor_event_fifo = MonitorEventFIFO()
     else:
         self.monitor_event_fifo = None
     self.apfmon = Apfmon(self.queueConfigMapper)
     self.eventBasedMonCoreList = []
     if getattr(harvester_config.monitor, 'eventBasedEnable', False):
         for pluginConf in harvester_config.monitor.eventBasedPlugins:
             pluginFactory = PluginFactory()
             self.eventBasedMonCoreList.append(pluginFactory.get_plugin(pluginConf))
예제 #5
0
 def __init__(self, queue_config_mapper):
     self.queueConfigMapper = queue_config_mapper
     self.pluginFactory = PluginFactory()
     self.dbProxy = DBProxy()
     self.throttlerMap = dict()
     self.apf_mon = Apfmon(self.queueConfigMapper)
     try:
         self.maxNewWorkers = harvester_config.submitter.maxNewWorkers
     except AttributeError:
         self.maxNewWorkers = None
예제 #6
0
class WorkerAdjuster(object):
    # constructor
    def __init__(self, queue_config_mapper):
        self.queue_configMapper = queue_config_mapper
        self.pluginFactory = PluginFactory()
        self.dbProxy = DBProxy()
        self.throttlerMap = dict()
        self.apf_mon = Apfmon(self.queue_configMapper)
        try:
            self.maxNewWorkers = harvester_config.submitter.maxNewWorkers
        except AttributeError:
            self.maxNewWorkers = None

    # define number of workers to submit based on various information
    def define_num_workers(self, static_num_workers, site_name):
        tmp_log = core_utils.make_logger(_logger,
                                         'site={0}'.format(site_name),
                                         method_name='define_num_workers')
        tmp_log.debug('start')
        tmp_log.debug('static_num_workers: {0}'.format(static_num_workers))
        dyn_num_workers = copy.deepcopy(static_num_workers)
        try:
            # get queue status
            queue_stat = self.dbProxy.get_cache("panda_queues.json", None)
            if queue_stat is None:
                queue_stat = dict()
            else:
                queue_stat = queue_stat.data

            # get job statistics
            job_stats = self.dbProxy.get_cache("job_statistics.json", None)
            if job_stats is None:
                job_stats = dict()
            else:
                job_stats = job_stats.data

            # define num of new workers
            for queue_name in static_num_workers:
                # get queue
                queue_config = self.queue_configMapper.get_queue(queue_name)
                worker_limits_dict = self.dbProxy.get_worker_limits(queue_name)
                max_workers = worker_limits_dict.get('maxWorkers', 0)
                n_queue_limit = worker_limits_dict.get('nQueueLimitWorker', 0)
                n_queue_limit_per_rt = worker_limits_dict[
                    'nQueueLimitWorkerPerRT']
                n_queue_total, n_ready_total, n_running_total = 0, 0, 0
                apf_msg = None
                apf_data = None
                for job_type, jt_values in iteritems(
                        static_num_workers[queue_name]):
                    for resource_type, tmp_val in iteritems(jt_values):
                        tmp_log.debug(
                            'Processing queue {0} job_type {1} resource_type {2} with static_num_workers {3}'
                            .format(queue_name, job_type, resource_type,
                                    tmp_val))

                        # set 0 to num of new workers when the queue is disabled
                        if queue_name in queue_stat and queue_stat[queue_name][
                                'status'] in [
                                    'offline', 'standby', 'maintenance'
                                ]:
                            dyn_num_workers[queue_name][job_type][
                                resource_type]['nNewWorkers'] = 0
                            ret_msg = 'set n_new_workers=0 since status={0}'.format(
                                queue_stat[queue_name]['status'])
                            tmp_log.debug(ret_msg)
                            apf_msg = 'Not submitting workers since queue status = {0}'.format(
                                queue_stat[queue_name]['status'])
                            continue

                        # protection against not-up-to-date queue config
                        if queue_config is None:
                            dyn_num_workers[queue_name][job_type][
                                resource_type]['nNewWorkers'] = 0
                            ret_msg = 'set n_new_workers=0 due to missing queue_config'
                            tmp_log.debug(ret_msg)
                            apf_msg = 'Not submitting workers because of missing queue_config'
                            continue

                        # get throttler
                        if queue_name not in self.throttlerMap:
                            if hasattr(queue_config, 'throttler'):
                                throttler = self.pluginFactory.get_plugin(
                                    queue_config.throttler)
                            else:
                                throttler = None
                            self.throttlerMap[queue_name] = throttler

                        # check throttler
                        throttler = self.throttlerMap[queue_name]
                        if throttler is not None:
                            to_throttle, tmp_msg = throttler.to_be_throttled(
                                queue_config)
                            if to_throttle:
                                dyn_num_workers[queue_name][job_type][
                                    resource_type]['nNewWorkers'] = 0
                                ret_msg = 'set n_new_workers=0 by {0}:{1}'.format(
                                    throttler.__class__.__name__, tmp_msg)
                                tmp_log.debug(ret_msg)
                                continue

                        # check stats
                        n_queue = tmp_val['nQueue']
                        n_ready = tmp_val['nReady']
                        n_running = tmp_val['nRunning']
                        if resource_type != 'ANY' and job_type != 'ANY' and job_type is not None:
                            n_queue_total += n_queue
                            n_ready_total += n_ready
                            n_running_total += n_running
                        if queue_config.runMode == 'slave':
                            n_new_workers_def = tmp_val['nNewWorkers']
                            if n_new_workers_def == 0:
                                dyn_num_workers[queue_name][job_type][
                                    resource_type]['nNewWorkers'] = 0
                                ret_msg = 'set n_new_workers=0 by panda in slave mode'
                                tmp_log.debug(ret_msg)
                                continue
                        else:
                            n_new_workers_def = None

                        # define num of new workers based on static site config
                        n_new_workers = 0
                        if n_queue >= n_queue_limit_per_rt > 0:
                            # enough queued workers
                            ret_msg = 'No n_new_workers since n_queue({0})>=n_queue_limit_per_rt({1})'.format(
                                n_queue, n_queue_limit_per_rt)
                            tmp_log.debug(ret_msg)
                            pass
                        elif (n_queue + n_ready +
                              n_running) >= max_workers > 0:
                            # enough workers in the system
                            ret_msg = 'No n_new_workers since n_queue({0}) + n_ready({1}) + n_running({2}) '.format(
                                n_queue, n_ready, n_running)
                            ret_msg += '>= max_workers({0})'.format(
                                max_workers)
                            tmp_log.debug(ret_msg)
                            pass
                        else:

                            max_queued_workers = None

                            if n_queue_limit_per_rt > 0:  # there is a limit set for the queue
                                max_queued_workers = n_queue_limit_per_rt

                            # Reset the maxQueueWorkers according to particular
                            if n_new_workers_def is not None:  # don't surpass limits given centrally
                                maxQueuedWorkers_slave = n_new_workers_def + n_queue
                                if max_queued_workers is not None:
                                    max_queued_workers = min(
                                        maxQueuedWorkers_slave,
                                        max_queued_workers)
                                else:
                                    max_queued_workers = maxQueuedWorkers_slave

                            elif queue_config.mapType == 'NoJob':  # for pull mode, limit to activated jobs
                                # limit the queue to the number of activated jobs to avoid empty pilots
                                try:
                                    n_activated = max(
                                        job_stats[queue_name]['activated'],
                                        1)  # avoid no activity queues
                                    queue_limit = max_queued_workers
                                    max_queued_workers = min(
                                        n_activated, max_queued_workers)
                                    tmp_log.debug(
                                        'limiting max_queued_workers to min(n_activated={0}, queue_limit={1})'
                                        .format(n_activated, queue_limit))
                                except KeyError:
                                    tmp_log.warning(
                                        'n_activated not defined, defaulting to configured queue limits'
                                    )
                                    pass

                            if max_queued_workers is None:  # no value found, use default value
                                max_queued_workers = 1

                            # new workers
                            n_new_workers = max(max_queued_workers - n_queue,
                                                0)
                            tmp_log.debug(
                                'setting n_new_workers to {0} in max_queued_workers calculation'
                                .format(n_new_workers))
                            if max_workers > 0:
                                n_new_workers = min(
                                    n_new_workers,
                                    max(
                                        max_workers - n_queue - n_ready -
                                        n_running, 0))
                                tmp_log.debug(
                                    'setting n_new_workers to {0} to respect max_workers'
                                    .format(n_new_workers))
                        if queue_config.maxNewWorkersPerCycle > 0:
                            n_new_workers = min(
                                n_new_workers,
                                queue_config.maxNewWorkersPerCycle)
                            tmp_log.debug(
                                'setting n_new_workers to {0} in order to respect maxNewWorkersPerCycle'
                                .format(n_new_workers))
                        if self.maxNewWorkers is not None and self.maxNewWorkers > 0:
                            n_new_workers = min(n_new_workers,
                                                self.maxNewWorkers)
                            tmp_log.debug(
                                'setting n_new_workers to {0} in order to respect universal maxNewWorkers'
                                .format(n_new_workers))
                        dyn_num_workers[queue_name][job_type][resource_type][
                            'nNewWorkers'] = n_new_workers

                # adjust n_new_workers for UCORE to let aggregations over RT respect nQueueLimitWorker and max_workers
                if queue_config is None:
                    max_new_workers_per_cycle = 0
                    ret_msg = 'set max_new_workers_per_cycle=0 in UCORE aggregation due to missing queue_config'
                    tmp_log.debug(ret_msg)
                else:
                    max_new_workers_per_cycle = queue_config.maxNewWorkersPerCycle
                if len(dyn_num_workers[queue_name]) > 1:
                    total_new_workers_rts = 0
                    for _jt in dyn_num_workers[queue_name]:
                        for _rt in dyn_num_workers[queue_name][_jt]:
                            if _jt != 'ANY' and _rt != 'ANY':
                                total_new_workers_rts = total_new_workers_rts + dyn_num_workers[
                                    queue_name][_jt][_rt]['nNewWorkers']
                    n_new_workers_max_agg = min(
                        max(n_queue_limit - n_queue_total, 0),
                        max(
                            max_workers - n_queue_total - n_ready_total -
                            n_running_total, 0))
                    if max_new_workers_per_cycle >= 0:
                        n_new_workers_max_agg = min(n_new_workers_max_agg,
                                                    max_new_workers_per_cycle)
                    if self.maxNewWorkers is not None and self.maxNewWorkers > 0:
                        n_new_workers_max_agg = min(n_new_workers_max_agg,
                                                    self.maxNewWorkers)

                    # exceeded max, to adjust
                    if total_new_workers_rts > n_new_workers_max_agg:
                        if n_new_workers_max_agg == 0:
                            for job_type in dyn_num_workers[queue_name]:
                                for resource_type in dyn_num_workers[
                                        queue_name][job_type]:
                                    dyn_num_workers[queue_name][job_type][
                                        resource_type]['nNewWorkers'] = 0
                            tmp_log.debug(
                                'No n_new_workers since n_new_workers_max_agg=0 for UCORE'
                            )
                        else:
                            tmp_log.debug(
                                'n_new_workers_max_agg={0} for UCORE'.format(
                                    n_new_workers_max_agg))
                            _d = dyn_num_workers[queue_name].copy()
                            del _d['ANY']

                            # TODO: needs to be recalculated
                            simple_rt_nw_list = []
                            for job_type in _d:  # jt: job type
                                for resource_type in _d[
                                        job_type]:  # rt: resource type
                                    simple_rt_nw_list.append([
                                        (resource_type, job_type),
                                        _d[job_type][resource_type].get(
                                            'nNewWorkers', 0), 0
                                    ])

                            _countdown = n_new_workers_max_agg
                            for _rt_list in simple_rt_nw_list:
                                (resource_type,
                                 job_type), n_new_workers_orig, _r = _rt_list
                                n_new_workers, remainder = divmod(
                                    n_new_workers_orig * n_new_workers_max_agg,
                                    total_new_workers_rts)
                                dyn_num_workers[queue_name][
                                    job_type].setdefault(
                                        resource_type, {
                                            'nReady': 0,
                                            'nRunning': 0,
                                            'nQueue': 0,
                                            'nNewWorkers': 0
                                        })
                                dyn_num_workers[queue_name][job_type][
                                    resource_type][
                                        'nNewWorkers'] = n_new_workers
                                _rt_list[2] = remainder
                                _countdown -= n_new_workers
                            _s_list = sorted(simple_rt_nw_list,
                                             key=(lambda x: x[1]))
                            sorted_rt_nw_list = sorted(_s_list,
                                                       key=(lambda x: x[2]),
                                                       reverse=True)
                            for (
                                    resource_type, job_type
                            ), n_new_workers_orig, remainder in sorted_rt_nw_list:
                                if _countdown <= 0:
                                    break
                                dyn_num_workers[queue_name][job_type][
                                    resource_type]['nNewWorkers'] += 1
                                _countdown -= 1
                        for job_type in dyn_num_workers[queue_name]:
                            for resource_type in dyn_num_workers[queue_name][
                                    job_type]:
                                if job_type == 'ANY' or resource_type == 'ANY':
                                    continue
                                n_new_workers = dyn_num_workers[queue_name][
                                    job_type][resource_type]['nNewWorkers']
                                tmp_log.debug(
                                    'setting n_new_workers to {0} of job_type {1} resource_type {2} in order to respect RT aggregations for UCORE'
                                    .format(n_new_workers, job_type,
                                            resource_type))

                if not apf_msg:
                    apf_data = copy.deepcopy(dyn_num_workers[queue_name])

                self.apf_mon.update_label(queue_name, apf_msg, apf_data)

            # dump
            tmp_log.debug('defined {0}'.format(str(dyn_num_workers)))
            return dyn_num_workers
        except Exception:
            # dump error
            err_msg = core_utils.dump_error_message(tmp_log)
            return None
예제 #7
0
class Monitor(AgentBase):
    # constructor
    def __init__(self, queue_config_mapper, single_mode=False):
        AgentBase.__init__(self, single_mode)
        self.queueConfigMapper = queue_config_mapper
        self.dbProxy = DBProxy()
        self.pluginFactory = PluginFactory()
        self.startTimestamp = time.time()
        self.monitor_fifo = MonitorFIFO()
        self.apfmon = Apfmon(self.queueConfigMapper)

    # main loop
    def run(self):
        lockedBy = 'monitor-{0}'.format(self.get_pid())
        # init messengers
        for queueConfig in self.queueConfigMapper.get_all_queues().values():
            # just import for module initialization
            self.pluginFactory.get_plugin(queueConfig.messenger)
        # main
        try:
            fifoSleepTimeMilli = harvester_config.monitor.fifoSleepTimeMilli
        except AttributeError:
            fifoSleepTimeMilli = 5000
        try:
            fifoCheckDuration = harvester_config.monitor.fifoCheckDuration
        except AttributeError:
            fifoCheckDuration = 30
        try:
            fifoMaxWorkersPerChunk = harvester_config.monitor.fifoMaxWorkersPerChunk
        except AttributeError:
            fifoMaxWorkersPerChunk = 500
        try:
            fifoProtectiveDequeue = harvester_config.monitor.fifoProtectiveDequeue
        except AttributeError:
            fifoProtectiveDequeue = True
        last_DB_cycle_timestamp = 0
        monitor_fifo = self.monitor_fifo
        sleepTime = (fifoSleepTimeMilli / 1000.0) \
                        if monitor_fifo.enabled else harvester_config.monitor.sleepTime
        adjusted_sleepTime = sleepTime
        if monitor_fifo.enabled:
            monitor_fifo.restore()
        while True:
            sw_main = core_utils.get_stopwatch()
            mainLog = self.make_logger(_logger,
                                       'id={0}'.format(lockedBy),
                                       method_name='run')
            mainLog.debug('start a monitor cycle')
            if time.time() >= last_DB_cycle_timestamp + harvester_config.monitor.sleepTime and \
                    not (monitor_fifo.enabled and self.singleMode):
                # run with workers from DB
                sw_db = core_utils.get_stopwatch()
                mainLog.debug('starting run with DB')
                mainLog.debug('getting workers to monitor')
                workSpecsPerQueue = self.dbProxy.get_workers_to_update(
                    harvester_config.monitor.maxWorkers,
                    harvester_config.monitor.checkInterval,
                    harvester_config.monitor.lockInterval, lockedBy)
                mainLog.debug('got {0} queues'.format(len(workSpecsPerQueue)))
                # loop over all workers
                for queueName, configIdWorkSpecs in iteritems(
                        workSpecsPerQueue):
                    for configID, workSpecsList in iteritems(
                            configIdWorkSpecs):
                        retVal = self.monitor_agent_core(lockedBy,
                                                         queueName,
                                                         workSpecsList,
                                                         config_id=configID)
                        if monitor_fifo.enabled and retVal is not None:
                            workSpecsToEnqueue, workSpecsToEnqueueToHead, timeNow_timestamp, fifoCheckInterval = retVal
                            if workSpecsToEnqueue:
                                mainLog.debug('putting workers to FIFO')
                                try:
                                    score = fifoCheckInterval + timeNow_timestamp
                                    monitor_fifo.put(
                                        (queueName, workSpecsToEnqueue), score)
                                    mainLog.info(
                                        'put workers of {0} to FIFO with score {1}'
                                        .format(queueName, score))
                                except Exception as errStr:
                                    mainLog.error(
                                        'failed to put object from FIFO: {0}'.
                                        format(errStr))
                            if workSpecsToEnqueueToHead:
                                mainLog.debug('putting workers to FIFO head')
                                try:
                                    score = fifoCheckInterval - timeNow_timestamp
                                    monitor_fifo.put(
                                        (queueName, workSpecsToEnqueueToHead),
                                        score)
                                    mainLog.info(
                                        'put workers of {0} to FIFO with score {1}'
                                        .format(queueName, score))
                                except Exception as errStr:
                                    mainLog.error(
                                        'failed to put object from FIFO head: {0}'
                                        .format(errStr))
                last_DB_cycle_timestamp = time.time()
                if sw_db.get_elapsed_time_in_sec(
                ) > harvester_config.monitor.lockInterval:
                    mainLog.warning(
                        'a single DB cycle was longer than lockInterval ' +
                        sw_db.get_elapsed_time())
                else:
                    mainLog.debug('done a DB cycle' + sw_db.get_elapsed_time())
                mainLog.debug('ended run with DB')
            elif monitor_fifo.enabled:
                # run with workers from FIFO
                sw = core_utils.get_stopwatch()
                n_loops = 0
                n_loops_hit = 0
                last_fifo_cycle_timestamp = time.time()
                to_break = False
                obj_dequeued_id_list = []
                obj_to_enqueue_dict = collections.defaultdict(
                    lambda: [[], 0, 0])
                obj_to_enqueue_to_head_dict = collections.defaultdict(
                    lambda: [[], 0, 0])
                remaining_obj_to_enqueue_dict = {}
                remaining_obj_to_enqueue_to_head_dict = {}
                n_chunk_peeked_stat, sum_overhead_time_stat = 0, 0.0
                while time.time(
                ) < last_fifo_cycle_timestamp + fifoCheckDuration:
                    sw.reset()
                    n_loops += 1
                    retVal, overhead_time = monitor_fifo.to_check_workers()
                    if overhead_time is not None:
                        n_chunk_peeked_stat += 1
                        sum_overhead_time_stat += overhead_time
                    if retVal:
                        # check fifo size
                        fifo_size = monitor_fifo.size()
                        mainLog.debug('FIFO size is {0}'.format(fifo_size))
                        mainLog.debug('starting run with FIFO')
                        try:
                            obj_gotten = monitor_fifo.get(
                                timeout=1, protective=fifoProtectiveDequeue)
                        except Exception as errStr:
                            mainLog.error(
                                'failed to get object from FIFO: {0}'.format(
                                    errStr))
                        else:
                            if obj_gotten is not None:
                                sw_fifo = core_utils.get_stopwatch()
                                if fifoProtectiveDequeue:
                                    obj_dequeued_id_list.append(obj_gotten.id)
                                queueName, workSpecsList = obj_gotten.item
                                mainLog.debug(
                                    'got a chunk of {0} workers of {1} from FIFO'
                                    .format(len(workSpecsList), queueName) +
                                    sw.get_elapsed_time())
                                sw.reset()
                                configID = None
                                for workSpecs in workSpecsList:
                                    if configID is None and len(workSpecs) > 0:
                                        configID = workSpecs[0].configID
                                    for workSpec in workSpecs:
                                        if workSpec.pandaid_list is None:
                                            _jobspec_list = workSpec.get_jobspec_list(
                                            )
                                            if _jobspec_list is not None:
                                                workSpec.pandaid_list = [
                                                    j.PandaID
                                                    for j in workSpec.
                                                    get_jobspec_list()
                                                ]
                                            else:
                                                workSpec.pandaid_list = []
                                            workSpec.force_update(
                                                'pandaid_list')
                                retVal = self.monitor_agent_core(
                                    lockedBy,
                                    queueName,
                                    workSpecsList,
                                    from_fifo=True,
                                    config_id=configID)
                                if retVal is not None:
                                    workSpecsToEnqueue, workSpecsToEnqueueToHead, timeNow_timestamp, fifoCheckInterval = retVal
                                    try:
                                        if len(obj_to_enqueue_dict[queueName]
                                               [0]) + len(
                                                   workSpecsToEnqueue
                                               ) <= fifoMaxWorkersPerChunk:
                                            obj_to_enqueue_dict[queueName][
                                                0].extend(workSpecsToEnqueue)
                                            obj_to_enqueue_dict[queueName][
                                                1] = max(
                                                    obj_to_enqueue_dict[
                                                        queueName][1],
                                                    timeNow_timestamp)
                                            obj_to_enqueue_dict[queueName][
                                                2] = max(
                                                    obj_to_enqueue_dict[
                                                        queueName][2],
                                                    fifoCheckInterval)
                                        else:
                                            to_break = True
                                            remaining_obj_to_enqueue_dict[
                                                queueName] = [
                                                    workSpecsToEnqueue,
                                                    timeNow_timestamp,
                                                    fifoCheckInterval
                                                ]
                                    except Exception as errStr:
                                        mainLog.error(
                                            'failed to gather workers for FIFO: {0}'
                                            .format(errStr))
                                        to_break = True
                                    try:
                                        if len(obj_to_enqueue_to_head_dict[
                                                queueName][0]) + len(
                                                    workSpecsToEnqueueToHead
                                                ) <= fifoMaxWorkersPerChunk:
                                            obj_to_enqueue_to_head_dict[
                                                queueName][0].extend(
                                                    workSpecsToEnqueueToHead)
                                            obj_to_enqueue_to_head_dict[
                                                queueName][1] = max(
                                                    obj_to_enqueue_to_head_dict[
                                                        queueName][1],
                                                    timeNow_timestamp)
                                            obj_to_enqueue_to_head_dict[
                                                queueName][2] = max(
                                                    obj_to_enqueue_to_head_dict[
                                                        queueName][2],
                                                    fifoCheckInterval)
                                        else:
                                            to_break = True
                                            remaining_obj_to_enqueue_to_head_dict[
                                                queueName] = [
                                                    workSpecsToEnqueueToHead,
                                                    timeNow_timestamp,
                                                    fifoCheckInterval
                                                ]
                                    except Exception as errStr:
                                        mainLog.error(
                                            'failed to gather workers for FIFO head: {0}'
                                            .format(errStr))
                                        to_break = True
                                    mainLog.debug(
                                        'checked {0} workers from FIFO'.format(
                                            len(workSpecsList)) +
                                        sw.get_elapsed_time())
                                else:
                                    mainLog.debug(
                                        'monitor_agent_core returned None. Skipped putting to FIFO'
                                    )
                                if sw_fifo.get_elapsed_time_in_sec(
                                ) > harvester_config.monitor.lockInterval:
                                    mainLog.warning(
                                        'a single FIFO cycle was longer than lockInterval '
                                        + sw_fifo.get_elapsed_time())
                                else:
                                    mainLog.debug('done a FIFO cycle' +
                                                  sw_fifo.get_elapsed_time())
                                    n_loops_hit += 1
                                if to_break:
                                    break
                            else:
                                mainLog.debug('got nothing in FIFO')
                    else:
                        mainLog.debug(
                            'workers in FIFO too young to check. Skipped')
                        if self.singleMode:
                            break
                        if overhead_time is not None:
                            time.sleep(
                                max(-overhead_time * random.uniform(0.1, 1),
                                    adjusted_sleepTime))
                        else:
                            time.sleep(
                                max(fifoCheckDuration * random.uniform(0.1, 1),
                                    adjusted_sleepTime))
                mainLog.debug(
                    'run {0} loops, including {1} FIFO cycles'.format(
                        n_loops, n_loops_hit))

                # enqueue to fifo
                sw.reset()
                n_chunk_put = 0
                mainLog.debug('putting worker chunks to FIFO')
                for _dct in (obj_to_enqueue_dict,
                             remaining_obj_to_enqueue_dict):
                    for queueName, obj_to_enqueue in iteritems(_dct):
                        try:
                            workSpecsToEnqueue, timeNow_timestamp, fifoCheckInterval = obj_to_enqueue
                            if workSpecsToEnqueue:
                                score = fifoCheckInterval + timeNow_timestamp
                                monitor_fifo.put(
                                    (queueName, workSpecsToEnqueue), score)
                                n_chunk_put += 1
                                mainLog.info(
                                    'put a chunk of {0} workers of {1} to FIFO with score {2}'
                                    .format(len(workSpecsToEnqueue), queueName,
                                            score))
                        except Exception as errStr:
                            mainLog.error(
                                'failed to put object from FIFO: {0}'.format(
                                    errStr))
                mainLog.debug('putting worker chunks to FIFO head')
                for _dct in (obj_to_enqueue_to_head_dict,
                             remaining_obj_to_enqueue_to_head_dict):
                    for queueName, obj_to_enqueue_to_head in iteritems(_dct):
                        try:
                            workSpecsToEnqueueToHead, timeNow_timestamp, fifoCheckInterval = obj_to_enqueue_to_head
                            if workSpecsToEnqueueToHead:
                                score = fifoCheckInterval + timeNow_timestamp - 2**32
                                monitor_fifo.put(
                                    (queueName, workSpecsToEnqueueToHead),
                                    score)
                                n_chunk_put += 1
                                mainLog.info(
                                    'put a chunk of {0} workers of {1} to FIFO with score {2}'
                                    .format(len(workSpecsToEnqueueToHead),
                                            queueName, score))
                        except Exception as errStr:
                            mainLog.error(
                                'failed to put object from FIFO head: {0}'.
                                format(errStr))
                # release protective dequeued objects
                if fifoProtectiveDequeue and len(obj_dequeued_id_list) > 0:
                    monitor_fifo.release(ids=obj_dequeued_id_list)
                mainLog.debug(
                    'put {0} worker chunks into FIFO'.format(n_chunk_put) +
                    sw.get_elapsed_time())
                # adjust adjusted_sleepTime
                if n_chunk_peeked_stat > 0 and sum_overhead_time_stat > sleepTime:
                    speedup_factor = (sum_overhead_time_stat - sleepTime) / (
                        n_chunk_peeked_stat *
                        harvester_config.monitor.checkInterval)
                    speedup_factor = max(speedup_factor, 0)
                    adjusted_sleepTime = adjusted_sleepTime / (1. +
                                                               speedup_factor)
                elif n_chunk_peeked_stat == 0 or sum_overhead_time_stat < 0:
                    adjusted_sleepTime = (sleepTime + adjusted_sleepTime) / 2
                mainLog.debug('adjusted_sleepTime becomes {0:.3f} sec'.format(
                    adjusted_sleepTime))
                # end run with fifo
                mainLog.debug('ended run with FIFO')
            # time the cycle
            mainLog.debug('done a monitor cycle' + sw_main.get_elapsed_time())

            # check if being terminated
            if self.terminated(adjusted_sleepTime):
                mainLog.debug('terminated')
                return

    # core of monitor agent to check workers in workSpecsList of queueName
    def monitor_agent_core(self,
                           lockedBy,
                           queueName,
                           workSpecsList,
                           from_fifo=False,
                           config_id=None):
        tmpQueLog = self.make_logger(_logger,
                                     'id={0} queue={1}'.format(
                                         lockedBy, queueName),
                                     method_name='run')
        # check queue
        if not self.queueConfigMapper.has_queue(queueName, config_id):
            tmpQueLog.error('config not found')
            return None
        # get queue
        queueConfig = self.queueConfigMapper.get_queue(queueName, config_id)
        try:
            apfmon_status_updates = self.queueConfigMapper.queueConfig[
                queueName].monitor['apfmon_status_updates']
        except Exception:
            apfmon_status_updates = False
        tmpQueLog.debug(
            'apfmon_status_updates: {0}'.format(apfmon_status_updates))
        # get plugins
        monCore = self.pluginFactory.get_plugin(queueConfig.monitor)
        messenger = self.pluginFactory.get_plugin(queueConfig.messenger)
        # workspec chunk of active workers
        workSpecsToEnqueue_dict = {}
        workSpecsToEnqueueToHead_dict = {}
        timeNow_timestamp = time.time()
        # get fifoCheckInterval for PQ and other fifo attributes
        try:
            fifoCheckInterval = monCore.fifoCheckInterval
        except Exception:
            if hasattr(harvester_config.monitor, 'fifoCheckInterval'):
                fifoCheckInterval = harvester_config.monitor.fifoCheckInterval
            else:
                fifoCheckInterval = harvester_config.monitor.checkInterval
        try:
            forceEnqueueInterval = harvester_config.monitor.fifoForceEnqueueInterval
        except AttributeError:
            forceEnqueueInterval = 3600
        try:
            fifoMaxPreemptInterval = harvester_config.monitor.fifoMaxPreemptInterval
        except AttributeError:
            fifoMaxPreemptInterval = 60
        # check workers
        allWorkers = [item for sublist in workSpecsList for item in sublist]
        tmpQueLog.debug('checking {0} workers'.format(len(allWorkers)))
        tmpStat, tmpRetMap = self.check_workers(monCore, messenger, allWorkers,
                                                queueConfig, tmpQueLog,
                                                from_fifo)
        if tmpStat:
            # loop over all worker chunks
            tmpQueLog.debug('update jobs and workers')
            iWorker = 0
            for workSpecs in workSpecsList:
                jobSpecs = None
                pandaIDsList = []
                eventsToUpdateList = []
                filesToStageOutList = dict()
                isCheckedList = []
                mapType = workSpecs[0].mapType
                # loop over workSpecs
                for workSpec in workSpecs:
                    tmpLog = self.make_logger(_logger,
                                              'id={0} workerID={1}'.format(
                                                  lockedBy, workSpec.workerID),
                                              method_name='run')
                    tmpOut = tmpRetMap[workSpec.workerID]
                    oldStatus = tmpOut['oldStatus']
                    newStatus = tmpOut['newStatus']
                    monStatus = tmpOut['monStatus']
                    diagMessage = tmpOut['diagMessage']
                    workAttributes = tmpOut['workAttributes']
                    eventsToUpdate = tmpOut['eventsToUpdate']
                    filesToStageOut = tmpOut['filesToStageOut']
                    eventsRequestParams = tmpOut['eventsRequestParams']
                    nJobsToReFill = tmpOut['nJobsToReFill']
                    pandaIDs = tmpOut['pandaIDs']
                    isChecked = tmpOut['isChecked']
                    tmpStr = 'newStatus={0} monitoredStatus={1} diag={2} '
                    tmpStr += 'postProcessed={3} files={4}'
                    tmpLog.debug(
                        tmpStr.format(newStatus, monStatus, diagMessage,
                                      workSpec.is_post_processed(),
                                      str(filesToStageOut)))
                    iWorker += 1
                    # check status
                    if newStatus not in WorkSpec.ST_LIST:
                        tmpLog.error('unknown status={0}'.format(newStatus))
                        return
                    # update worker
                    workSpec.set_status(newStatus)
                    workSpec.set_work_attributes(workAttributes)
                    workSpec.set_dialog_message(diagMessage)
                    if isChecked:
                        workSpec.checkTime = datetime.datetime.utcnow()
                    isCheckedList.append(isChecked)
                    if monStatus == WorkSpec.ST_failed:
                        if not workSpec.has_pilot_error():
                            workSpec.set_pilot_error(
                                PilotErrors.ERR_GENERALERROR, diagMessage)
                    elif monStatus == WorkSpec.ST_cancelled:
                        if not workSpec.has_pilot_error():
                            workSpec.set_pilot_error(PilotErrors.ERR_PANDAKILL,
                                                     diagMessage)
                    if monStatus in [
                            WorkSpec.ST_finished, WorkSpec.ST_failed,
                            WorkSpec.ST_cancelled
                    ]:
                        workSpec.set_work_params({'finalMonStatus': monStatus})
                    # request events
                    if eventsRequestParams != {}:
                        workSpec.eventsRequest = WorkSpec.EV_requestEvents
                        workSpec.eventsRequestParams = eventsRequestParams
                    # jobs to refill
                    if nJobsToReFill is not None:
                        workSpec.nJobsToReFill = nJobsToReFill
                    # get associated jobs for the worker chunk
                    if workSpec.hasJob == 1 and jobSpecs is None:
                        jobSpecs = self.dbProxy.get_jobs_with_worker_id(
                            workSpec.workerID,
                            None,
                            only_running=True,
                            slim=True)
                    # pandaIDs for push
                    pandaIDsList.append(pandaIDs)
                    if len(eventsToUpdate) > 0:
                        eventsToUpdateList.append(eventsToUpdate)
                    if len(filesToStageOut) > 0:
                        filesToStageOutList[
                            workSpec.workerID] = filesToStageOut
                    # apfmon status update
                    if apfmon_status_updates and newStatus != oldStatus:
                        tmpQueLog.debug(
                            'apfmon_status_updates: {0} newStatus: {1} monStatus: {2} oldStatus: {3} workSpecStatus: {4}'
                            .format(apfmon_status_updates, newStatus,
                                    monStatus, oldStatus, workSpec.status))
                        self.apfmon.update_worker(workSpec, monStatus)

                # lock workers for fifo
                if from_fifo:
                    # collect some attributes to be updated when workers are locked
                    worker_id_list = dict()
                    for workSpec, isChecked in zip(workSpecs, isCheckedList):
                        attrs = dict()
                        if isChecked:
                            attrs['checkTime'] = workSpec.checkTime
                            workSpec.force_not_update('checkTime')
                        if workSpec.has_updated_attributes():
                            attrs['lockedBy'] = lockedBy
                            workSpec.lockedBy = lockedBy
                            workSpec.force_not_update('lockedBy')
                        else:
                            attrs['lockedBy'] = None
                        worker_id_list[workSpec.workerID] = attrs
                    temRetLockWorker = self.dbProxy.lock_workers(
                        worker_id_list, harvester_config.monitor.lockInterval)
                    # skip if not locked
                    if not temRetLockWorker:
                        continue
                # update jobs and workers
                if jobSpecs is not None and len(jobSpecs) > 0:
                    tmpQueLog.debug(
                        'updating {0} jobs with {1} workers'.format(
                            len(jobSpecs), len(workSpecs)))
                    core_utils.update_job_attributes_with_workers(
                        mapType, jobSpecs, workSpecs, filesToStageOutList,
                        eventsToUpdateList)
                # update local database
                tmpRet = self.dbProxy.update_jobs_workers(
                    jobSpecs, workSpecs, lockedBy, pandaIDsList)
                if not tmpRet:
                    for workSpec in workSpecs:
                        tmpLog = self.make_logger(_logger,
                                                  'id={0} workerID={1}'.format(
                                                      lockedBy,
                                                      workSpec.workerID),
                                                  method_name='run')
                        if from_fifo:
                            tmpLog.info(
                                'failed to update the DB. Maybe locked by other thread running with DB'
                            )
                        else:
                            if workSpec.status in [
                                    WorkSpec.ST_finished, WorkSpec.ST_failed,
                                    WorkSpec.ST_cancelled, WorkSpec.ST_missed
                            ]:
                                tmpLog.info(
                                    'worker already in final status. Skipped')
                            else:
                                tmpLog.error(
                                    'failed to update the DB. lockInterval may be too short'
                                )
                else:
                    if jobSpecs is not None:
                        for jobSpec in jobSpecs:
                            tmpLog = self.make_logger(
                                _logger,
                                'id={0} PandaID={1}'.format(
                                    lockedBy, jobSpec.PandaID),
                                method_name='run')
                            tmpLog.debug(
                                'new status={0} subStatus={1} status_in_metadata={2}'
                                .format(
                                    jobSpec.status, jobSpec.subStatus,
                                    jobSpec.get_job_status_from_attributes()))
                # send ACK to workers for events and files
                if len(eventsToUpdateList) > 0 or len(filesToStageOutList) > 0:
                    for workSpec in workSpecs:
                        try:
                            messenger.acknowledge_events_files(workSpec)
                        except Exception:
                            core_utils.dump_error_message(tmpQueLog)
                            tmpQueLog.error(
                                'failed to send ACK to workerID={0}'.format(
                                    workSpec.workerID))
                # active workers for fifo
                if self.monitor_fifo.enabled and workSpecs:
                    workSpec = workSpecs[0]
                    tmpOut = tmpRetMap[workSpec.workerID]
                    newStatus = tmpOut['newStatus']
                    monStatus = tmpOut['monStatus']
                    if newStatus in [WorkSpec.ST_submitted, WorkSpec.ST_running, WorkSpec.ST_idle] \
                        and workSpec.mapType != WorkSpec.MT_MultiWorkers \
                        and workSpec.workAttributes is not None:
                        timeNow = datetime.datetime.utcnow()
                        timeNow_timestamp = time.time()
                        # get lastCheckAt
                        _bool, lastCheckAt = workSpec.get_work_params(
                            'lastCheckAt')
                        try:
                            last_check_period = timeNow_timestamp - lastCheckAt
                        except TypeError:
                            last_check_period = forceEnqueueInterval + 1.0
                        # get lastForceEnqueueAt
                        _bool, lastForceEnqueueAt = workSpec.get_work_params(
                            'lastForceEnqueueAt')
                        if not (_bool and lastForceEnqueueAt is not None):
                            lastForceEnqueueAt = 0
                        # notification
                        intolerable_delay = max(
                            forceEnqueueInterval * 2,
                            harvester_config.monitor.checkInterval * 4)
                        if _bool and lastCheckAt is not None and last_check_period > harvester_config.monitor.checkInterval \
                            and timeNow_timestamp - harvester_config.monitor.checkInterval > self.startTimestamp:
                            if last_check_period > intolerable_delay:
                                tmpQueLog.error(
                                    'last check period of workerID={0} is {1} sec, intolerably longer than monitor checkInterval. Will NOT enquque worker by force. Please check why monitor checks worker slowly'
                                    .format(workSpec.workerID,
                                            last_check_period))
                            else:
                                tmpQueLog.warning(
                                    'last check period of workerID={0} is {1} sec, longer than monitor checkInterval'
                                    .format(workSpec.workerID,
                                            last_check_period))
                        # prepartion to enqueue fifo
                        if (from_fifo) \
                            or (not from_fifo
                                and timeNow_timestamp - harvester_config.monitor.sleepTime > self.startTimestamp
                                and last_check_period > forceEnqueueInterval
                                and last_check_period < intolerable_delay
                                and timeNow_timestamp - lastForceEnqueueAt > 86400 + forceEnqueueInterval):
                            if not from_fifo:
                                # in DB cycle
                                tmpQueLog.warning(
                                    'last check period of workerID={0} is {1} sec, longer than monitor forceEnqueueInterval. Enqueue the worker by force'
                                    .format(workSpec.workerID,
                                            last_check_period))
                                workSpec.set_work_params(
                                    {'lastForceEnqueueAt': timeNow_timestamp})
                            workSpec.set_work_params(
                                {'lastCheckAt': timeNow_timestamp})
                            workSpec.lockedBy = None
                            workSpec.force_update('lockedBy')
                            if monStatus in [
                                    WorkSpec.ST_finished, WorkSpec.ST_failed,
                                    WorkSpec.ST_cancelled
                            ]:
                                # for post-processing
                                _bool, startFifoPreemptAt = workSpec.get_work_params(
                                    'startFifoPreemptAt')
                                if not _bool or startFifoPreemptAt is None:
                                    startFifoPreemptAt = timeNow_timestamp
                                    workSpec.set_work_params({
                                        'startFifoPreemptAt':
                                        startFifoPreemptAt
                                    })
                                tmpQueLog.debug(
                                    'workerID={0} , startFifoPreemptAt: {1}'.
                                    format(workSpec.workerID,
                                           startFifoPreemptAt))
                                if timeNow_timestamp - startFifoPreemptAt < fifoMaxPreemptInterval:
                                    workSpecsToEnqueueToHead_dict[
                                        workSpec.workerID] = workSpecs
                                else:
                                    workSpec.set_work_params({
                                        'startFifoPreemptAt':
                                        timeNow_timestamp
                                    })
                                    workSpec.modificationTime = timeNow
                                    workSpec.force_update('modificationTime')
                                    workSpecsToEnqueue_dict[
                                        workSpec.workerID] = workSpecs
                            else:
                                workSpec.modificationTime = timeNow
                                workSpec.force_update('modificationTime')
                                workSpecsToEnqueue_dict[
                                    workSpec.workerID] = workSpecs
        else:
            tmpQueLog.error('failed to check workers')
        workSpecsToEnqueue = list(workSpecsToEnqueue_dict.values())
        workSpecsToEnqueueToHead = list(workSpecsToEnqueueToHead_dict.values())
        retVal = workSpecsToEnqueue, workSpecsToEnqueueToHead, timeNow_timestamp, fifoCheckInterval
        tmpQueLog.debug('done')
        return retVal

    # wrapper for checkWorkers
    def check_workers(self, mon_core, messenger, all_workers, queue_config,
                      tmp_log, from_fifo):
        # check timeout value
        try:
            checkTimeout = mon_core.checkTimeout
        except Exception:
            try:
                checkTimeout = harvester_config.monitor.checkTimeout
            except Exception:
                checkTimeout = None
        try:
            workerQueueTimeLimit = harvester_config.monitor.workerQueueTimeLimit
        except AttributeError:
            workerQueueTimeLimit = 172800
        workersToCheck = []
        thingsToPostProcess = []
        retMap = dict()
        for workSpec in all_workers:
            eventsRequestParams = {}
            eventsToUpdate = []
            pandaIDs = []
            workStatus = None
            workAttributes = None
            filesToStageOut = []
            nJobsToReFill = None
            if workSpec.has_work_params('finalMonStatus'):
                # to post-process
                _bool, finalMonStatus = workSpec.get_work_params(
                    'finalMonStatus')
                _thing = (workSpec, (finalMonStatus, ''))
                thingsToPostProcess.append(_thing)
            else:
                # job-level late binding
                if workSpec.hasJob == 0 and workSpec.mapType != WorkSpec.MT_NoJob:
                    # check if job is requested
                    jobRequested = messenger.job_requested(workSpec)
                    if jobRequested:
                        # set ready when job is requested
                        workStatus = WorkSpec.ST_ready
                    else:
                        workStatus = workSpec.status
                elif workSpec.nJobsToReFill in [0, None]:
                    # check if job is requested to refill free slots
                    jobRequested = messenger.job_requested(workSpec)
                    if jobRequested:
                        nJobsToReFill = jobRequested
                    workersToCheck.append(workSpec)
                else:
                    workersToCheck.append(workSpec)
            # add
            retMap[workSpec.workerID] = {
                'oldStatus': workSpec.status,
                'newStatus': workStatus,
                'monStatus': workStatus,
                'workAttributes': workAttributes,
                'filesToStageOut': filesToStageOut,
                'eventsRequestParams': eventsRequestParams,
                'eventsToUpdate': eventsToUpdate,
                'diagMessage': '',
                'pandaIDs': pandaIDs,
                'nJobsToReFill': nJobsToReFill,
                'isChecked': True
            }
        # check workers
        tmp_log.debug('checking workers with plugin')
        try:
            if workersToCheck:
                tmpStat, tmpOut = mon_core.check_workers(workersToCheck)
                if not tmpStat:
                    tmp_log.error(
                        'failed to check workers with: {0}'.format(tmpOut))
                    workersToCheck = []
                    tmpOut = []
                else:
                    tmp_log.debug('checked')
            else:
                tmp_log.debug('Nothing to be checked with plugin')
                tmpOut = []
            timeNow = datetime.datetime.utcnow()
            for workSpec, (newStatus, diagMessage) in itertools.chain(
                    zip(workersToCheck, tmpOut), thingsToPostProcess):
                workerID = workSpec.workerID
                tmp_log.debug('Going to check workerID={0}'.format(workerID))
                pandaIDs = []
                if workerID in retMap:
                    # failed to check status
                    if newStatus is None:
                        tmp_log.warning(
                            'Failed to check workerID={0} with {1}'.format(
                                workerID, diagMessage))
                        retMap[workerID]['isChecked'] = False
                        # set status
                        if workSpec.checkTime is not None and checkTimeout is not None and \
                                timeNow - workSpec.checkTime > datetime.timedelta(seconds=checkTimeout):
                            # kill due to timeout
                            tmp_log.debug(
                                'kill workerID={0} due to consecutive check failures'
                                .format(workerID))
                            self.dbProxy.kill_worker(workSpec.workerID)
                            newStatus = WorkSpec.ST_cancelled
                            diagMessage = 'Killed by Harvester due to consecutive worker check failures. ' + diagMessage
                            workSpec.set_pilot_error(
                                PilotErrors.ERR_FAILEDBYSERVER, diagMessage)
                        else:
                            # use original status
                            newStatus = workSpec.status
                    # request kill
                    if messenger.kill_requested(workSpec):
                        tmp_log.debug(
                            'kill workerID={0} as requested'.format(workerID))
                        self.dbProxy.kill_worker(workSpec.workerID)
                    # stuck queuing for too long
                    if workSpec.status == WorkSpec.ST_submitted \
                        and timeNow > workSpec.submitTime + datetime.timedelta(seconds=workerQueueTimeLimit):
                        tmp_log.debug(
                            'kill workerID={0} due to queuing longer than {1} seconds'
                            .format(workerID, workerQueueTimeLimit))
                        self.dbProxy.kill_worker(workSpec.workerID)
                        diagMessage = 'Killed by Harvester due to worker queuing too long' + diagMessage
                        workSpec.set_pilot_error(
                            PilotErrors.ERR_FAILEDBYSERVER, diagMessage)
                    # expired heartbeat - only when requested in the configuration
                    try:
                        # check if the queue configuration requires checking for worker heartbeat
                        worker_heartbeat_limit = int(
                            queue_config.messenger['worker_heartbeat'])
                    except (AttributeError, KeyError):
                        worker_heartbeat_limit = None
                    tmp_log.debug(
                        'workerID={0} heartbeat limit is configured to {1}'.
                        format(workerID, worker_heartbeat_limit))
                    if worker_heartbeat_limit:
                        if messenger.is_alive(workSpec,
                                              worker_heartbeat_limit):
                            tmp_log.debug(
                                'heartbeat for workerID={0} is valid'.format(
                                    workerID))
                        else:
                            tmp_log.debug(
                                'heartbeat for workerID={0} expired: sending kill request'
                                .format(workerID))
                            self.dbProxy.kill_worker(workSpec.workerID)
                            diagMessage = 'Killed by Harvester due to worker heartbeat expired. ' + diagMessage
                            workSpec.set_pilot_error(
                                PilotErrors.ERR_FAILEDBYSERVER, diagMessage)
                    # get work attributes
                    workAttributes = messenger.get_work_attributes(workSpec)
                    retMap[workerID]['workAttributes'] = workAttributes
                    # get output files
                    filesToStageOut = messenger.get_files_to_stage_out(
                        workSpec)
                    retMap[workerID]['filesToStageOut'] = filesToStageOut
                    # get events to update
                    if workSpec.eventsRequest in [
                            WorkSpec.EV_useEvents, WorkSpec.EV_requestEvents
                    ]:
                        eventsToUpdate = messenger.events_to_update(workSpec)
                        retMap[workerID]['eventsToUpdate'] = eventsToUpdate
                    # request events
                    if workSpec.eventsRequest == WorkSpec.EV_useEvents:
                        eventsRequestParams = messenger.events_requested(
                            workSpec)
                        retMap[workerID][
                            'eventsRequestParams'] = eventsRequestParams
                    # get PandaIDs for pull model
                    if workSpec.mapType == WorkSpec.MT_NoJob:
                        pandaIDs = messenger.get_panda_ids(workSpec)
                    retMap[workerID]['pandaIDs'] = pandaIDs
                    # keep original new status
                    retMap[workerID]['monStatus'] = newStatus
                    # set running or idle while there are events to update or files to stage out
                    if newStatus in [
                            WorkSpec.ST_finished, WorkSpec.ST_failed,
                            WorkSpec.ST_cancelled
                    ]:
                        if len(retMap[workerID]['filesToStageOut']) > 0 or \
                                        len(retMap[workerID]['eventsToUpdate']) > 0:
                            if workSpec.status == WorkSpec.ST_running:
                                newStatus = WorkSpec.ST_running
                            else:
                                newStatus = WorkSpec.ST_idle
                        elif not workSpec.is_post_processed():
                            if not queue_config.is_no_heartbeat_status(
                                    newStatus):
                                # post processing unless heartbeat is suppressed
                                jobSpecs = self.dbProxy.get_jobs_with_worker_id(
                                    workSpec.workerID,
                                    None,
                                    True,
                                    only_running=True,
                                    slim=True)
                                # post processing
                                messenger.post_processing(
                                    workSpec, jobSpecs, workSpec.mapType)
                            workSpec.post_processed()
                            if workSpec.status == WorkSpec.ST_running:
                                newStatus = WorkSpec.ST_running
                            else:
                                newStatus = WorkSpec.ST_idle
                        # reset modification time to immediately trigger subsequent lookup
                        if not self.monitor_fifo.enabled:
                            workSpec.trigger_next_lookup()
                    retMap[workerID]['newStatus'] = newStatus
                    retMap[workerID]['diagMessage'] = diagMessage
                else:
                    tmp_log.debug(
                        'workerID={0} not in retMap'.format(workerID))
            return True, retMap
        except Exception:
            core_utils.dump_error_message(tmp_log)
            return False, None
예제 #8
0
    def start(self):
        # thread list
        thrList = []
        # Credential Manager
        from pandaharvester.harvesterbody.cred_manager import CredManager
        thr = CredManager(single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.execute()
        thr.start()
        thrList.append(thr)
        # Command manager
        from pandaharvester.harvesterbody.command_manager import CommandManager
        thr = CommandManager(self.communicatorPool, self.queueConfigMapper, single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.start()
        thrList.append(thr)
        # Cacher
        from pandaharvester.harvesterbody.cacher import Cacher
        thr = Cacher(self.communicatorPool, single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.execute(force_update=True, skip_lock=True)
        thr.start()
        thrList.append(thr)
        # Watcher
        from pandaharvester.harvesterbody.watcher import Watcher
        thr = Watcher(single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.start()
        thrList.append(thr)
        # Job Fetcher
        from pandaharvester.harvesterbody.job_fetcher import JobFetcher
        nThr = harvester_config.jobfetcher.nThreads
        for iThr in range(nThr):
            thr = JobFetcher(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Propagator
        from pandaharvester.harvesterbody.propagator import Propagator
        nThr = harvester_config.propagator.nThreads
        for iThr in range(nThr):
            thr = Propagator(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Monitor
        from pandaharvester.harvesterbody.monitor import Monitor
        nThr = harvester_config.monitor.nThreads
        for iThr in range(nThr):
            thr = Monitor(self.queueConfigMapper,
                          single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Preparator
        from pandaharvester.harvesterbody.preparator import Preparator
        nThr = harvester_config.preparator.nThreads
        for iThr in range(nThr):
            thr = Preparator(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Submitter
        from pandaharvester.harvesterbody.submitter import Submitter
        nThr = harvester_config.submitter.nThreads
        for iThr in range(nThr):
            thr = Submitter(self.queueConfigMapper,
                            single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Stager
        from pandaharvester.harvesterbody.stager import Stager
        nThr = harvester_config.stager.nThreads
        for iThr in range(nThr):
            thr = Stager(self.queueConfigMapper,
                         single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # EventFeeder
        from pandaharvester.harvesterbody.event_feeder import EventFeeder
        nThr = harvester_config.eventfeeder.nThreads
        for iThr in range(nThr):
            thr = EventFeeder(self.communicatorPool,
                              self.queueConfigMapper,
                              single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Sweeper
        from pandaharvester.harvesterbody.sweeper import Sweeper
        nThr = harvester_config.sweeper.nThreads
        for iThr in range(nThr):
            thr = Sweeper(self.queueConfigMapper,
                          single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Service monitor
        try:
            sm_active = harvester_config.service_monitor.active
        except:
            sm_active = False

        if sm_active:
            from pandaharvester.harvesterbody.service_monitor import ServiceMonitor
            thr = ServiceMonitor(options.pid, single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)

        # Report itself to APF Mon
        apf_mon = Apfmon(self.queueConfigMapper)
        apf_mon.create_factory()
        apf_mon.create_labels()


        ##################
        # loop on stop event to be interruptable since thr.join blocks signal capture in python 2.7
        while True:
            if self.singleMode or not self.daemonMode:
                break
            self.stopEvent.wait(1)
            if self.stopEvent.is_set():
                break
        ##################
        # join
        if self.daemonMode:
            for thr in thrList:
                thr.join()
예제 #9
0
class WorkerAdjuster(object):
    # constructor
    def __init__(self, queue_config_mapper):
        self.queueConfigMapper = queue_config_mapper
        self.pluginFactory = PluginFactory()
        self.dbProxy = DBProxy()
        self.throttlerMap = dict()
        self.apf_mon = Apfmon(self.queueConfigMapper)
        try:
            self.maxNewWorkers = harvester_config.submitter.maxNewWorkers
        except AttributeError:
            self.maxNewWorkers = None

    # define number of workers to submit based on various information
    def define_num_workers(self, static_num_workers, site_name):
        tmpLog = core_utils.make_logger(_logger, 'site={0}'.format(site_name), method_name='define_num_workers')
        tmpLog.debug('start')
        tmpLog.debug('static_num_workers: {0}'.format(static_num_workers))
        dyn_num_workers = copy.deepcopy(static_num_workers)
        try:
            # get queue status
            queueStat = self.dbProxy.get_cache("panda_queues.json", None)
            if queueStat is None:
                queueStat = dict()
            else:
                queueStat = queueStat.data

            # get job statistics
            job_stats = self.dbProxy.get_cache("job_statistics.json", None)
            if job_stats is None:
                job_stats = dict()
            else:
                job_stats = job_stats.data

            # define num of new workers
            for queueName in static_num_workers:
                # get queue
                queueConfig = self.queueConfigMapper.get_queue(queueName)
                workerLimits_dict = self.dbProxy.get_worker_limits(queueName)
                maxWorkers = workerLimits_dict.get('maxWorkers', 0)
                nQueueLimit = workerLimits_dict.get('nQueueLimitWorker', 0)
                nQueueLimitPerRT = workerLimits_dict['nQueueLimitWorkerPerRT']
                nQueue_total, nReady_total, nRunning_total = 0, 0, 0
                apf_msg = None
                apf_data = None
                for resource_type, tmpVal in iteritems(static_num_workers[queueName]):
                    tmpLog.debug('Processing queue {0} resource {1} with static_num_workers {2}'.
                                 format(queueName, resource_type, tmpVal))

                    # set 0 to num of new workers when the queue is disabled
                    if queueName in queueStat and queueStat[queueName]['status'] in ['offline', 'standby',
                                                                                     'maintenance']:
                        dyn_num_workers[queueName][resource_type]['nNewWorkers'] = 0
                        retMsg = 'set nNewWorkers=0 since status={0}'.format(queueStat[queueName]['status'])
                        tmpLog.debug(retMsg)
                        apf_msg = 'Not submitting workers since queue status = {0}'.format(queueStat[queueName]['status'])
                        continue

                    # protection against not-up-to-date queue config
                    if queueConfig is None:
                        dyn_num_workers[queueName][resource_type]['nNewWorkers'] = 0
                        retMsg = 'set nNewWorkers=0 due to missing queueConfig'
                        tmpLog.debug(retMsg)
                        apf_msg = 'Not submitting workers because of missing queueConfig'
                        continue

                    # get throttler
                    if queueName not in self.throttlerMap:
                        if hasattr(queueConfig, 'throttler'):
                            throttler = self.pluginFactory.get_plugin(queueConfig.throttler)
                        else:
                            throttler = None
                        self.throttlerMap[queueName] = throttler

                    # check throttler
                    throttler = self.throttlerMap[queueName]
                    if throttler is not None:
                        toThrottle, tmpMsg = throttler.to_be_throttled(queueConfig)
                        if toThrottle:
                            dyn_num_workers[queueName][resource_type]['nNewWorkers'] = 0
                            retMsg = 'set nNewWorkers=0 by {0}:{1}'.format(throttler.__class__.__name__, tmpMsg)
                            tmpLog.debug(retMsg)
                            continue

                    # check stats
                    nQueue = tmpVal['nQueue']
                    nReady = tmpVal['nReady']
                    nRunning = tmpVal['nRunning']
                    if resource_type != 'ANY':
                        nQueue_total += nQueue
                        nReady_total += nReady
                        nRunning_total += nRunning
                    if queueConfig.runMode == 'slave':
                        nNewWorkersDef = tmpVal['nNewWorkers']
                        if nNewWorkersDef == 0:
                            dyn_num_workers[queueName][resource_type]['nNewWorkers'] = 0
                            retMsg = 'set nNewWorkers=0 by panda in slave mode'
                            tmpLog.debug(retMsg)
                            continue
                    else:
                        nNewWorkersDef = None

                    # define num of new workers based on static site config
                    nNewWorkers = 0
                    if nQueue >= nQueueLimitPerRT > 0:
                        # enough queued workers
                        retMsg = 'No nNewWorkers since nQueue({0})>=nQueueLimitPerRT({1})'.format(nQueue, nQueueLimitPerRT)
                        tmpLog.debug(retMsg)
                        pass
                    elif (nQueue + nReady + nRunning) >= maxWorkers > 0:
                        # enough workers in the system
                        retMsg = 'No nNewWorkers since nQueue({0}) + nReady({1}) + nRunning({2}) '.format(nQueue,
                                                                                                          nReady,
                                                                                                          nRunning)
                        retMsg += '>= maxWorkers({0})'.format(maxWorkers)
                        tmpLog.debug(retMsg)
                        pass
                    else:

                        maxQueuedWorkers = None

                        if nQueueLimitPerRT > 0:  # there is a limit set for the queue
                            maxQueuedWorkers = nQueueLimitPerRT

                        # Reset the maxQueueWorkers according to particular
                        if nNewWorkersDef is not None:  # don't surpass limits given centrally
                            maxQueuedWorkers_slave = nNewWorkersDef + nQueue
                            if maxQueuedWorkers is not None:
                                maxQueuedWorkers = min(maxQueuedWorkers_slave, maxQueuedWorkers)
                            else:
                                maxQueuedWorkers = maxQueuedWorkers_slave

                        elif queueConfig.mapType == 'NoJob': # for pull mode, limit to activated jobs
                            # limit the queue to the number of activated jobs to avoid empty pilots
                            try:
                                n_activated = max(job_stats[queueName]['activated'], 1) # avoid no activity queues
                                queue_limit = maxQueuedWorkers
                                maxQueuedWorkers = min(n_activated, maxQueuedWorkers)
                                tmpLog.debug('limiting maxQueuedWorkers to min(n_activated={0}, queue_limit={1})'.
                                             format(n_activated, queue_limit))
                            except KeyError:
                                tmpLog.warning('n_activated not defined, defaulting to configured queue limits')
                                pass

                        if maxQueuedWorkers is None:  # no value found, use default value
                            maxQueuedWorkers = 1

                        # new workers
                        nNewWorkers = max(maxQueuedWorkers - nQueue, 0)
                        tmpLog.debug('setting nNewWorkers to {0} in maxQueuedWorkers calculation'
                                     .format(nNewWorkers))
                        if maxWorkers > 0:
                            nNewWorkers = min(nNewWorkers, max(maxWorkers - nQueue - nReady - nRunning, 0))
                            tmpLog.debug('setting nNewWorkers to {0} to respect maxWorkers'
                                         .format(nNewWorkers))
                    if queueConfig.maxNewWorkersPerCycle > 0:
                        nNewWorkers = min(nNewWorkers, queueConfig.maxNewWorkersPerCycle)
                        tmpLog.debug('setting nNewWorkers to {0} in order to respect maxNewWorkersPerCycle'
                                     .format(nNewWorkers))
                    if self.maxNewWorkers is not None and self.maxNewWorkers > 0:
                        nNewWorkers = min(nNewWorkers, self.maxNewWorkers)
                        tmpLog.debug('setting nNewWorkers to {0} in order to respect universal maxNewWorkers'
                                     .format(nNewWorkers))
                    dyn_num_workers[queueName][resource_type]['nNewWorkers'] = nNewWorkers

                # adjust nNewWorkers for UCORE to let aggregations over RT respect nQueueLimitWorker and maxWorkers
                if queueConfig is None:
                    maxNewWorkersPerCycle = 0
                    retMsg = 'set maxNewWorkersPerCycle=0 in UCORE aggregation due to missing queueConfig'
                    tmpLog.debug(retMsg)
                else:
                    maxNewWorkersPerCycle = queueConfig.maxNewWorkersPerCycle
                if len(dyn_num_workers[queueName]) > 1:
                    total_new_workers_rts = sum( dyn_num_workers[queueName][_rt]['nNewWorkers']
                                                if _rt != 'ANY' else 0
                                                for _rt in dyn_num_workers[queueName] )
                    nNewWorkers_max_agg = min(
                                                max(nQueueLimit - nQueue_total, 0),
                                                max(maxWorkers - nQueue_total - nReady_total - nRunning_total, 0),
                                                )
                    if maxNewWorkersPerCycle >= 0:
                        nNewWorkers_max_agg = min(nNewWorkers_max_agg, maxNewWorkersPerCycle)
                    if self.maxNewWorkers is not None and self.maxNewWorkers > 0:
                        nNewWorkers_max_agg = min(nNewWorkers_max_agg, self.maxNewWorkers)
                    # exceeded max, to adjust
                    if total_new_workers_rts > nNewWorkers_max_agg:
                        if nNewWorkers_max_agg == 0:
                            for resource_type in dyn_num_workers[queueName]:
                                dyn_num_workers[queueName][resource_type]['nNewWorkers'] = 0
                            tmpLog.debug('No nNewWorkers since nNewWorkers_max_agg=0 for UCORE')
                        else:
                            tmpLog.debug('nNewWorkers_max_agg={0} for UCORE'.format(nNewWorkers_max_agg))
                            _d = dyn_num_workers[queueName].copy()
                            del _d['ANY']
                            simple_rt_nw_list = [ [_rt, _d[_rt].get('nNewWorkers', 0), 0] for _rt in _d ]
                            _countdown = nNewWorkers_max_agg
                            for _rt_list in simple_rt_nw_list:
                                resource_type, nNewWorkers_orig, _r = _rt_list
                                nNewWorkers, remainder = divmod(nNewWorkers_orig*nNewWorkers_max_agg, total_new_workers_rts)
                                dyn_num_workers[queueName][resource_type]['nNewWorkers'] = nNewWorkers
                                _rt_list[2] = remainder
                                _countdown -= nNewWorkers
                            _s_list = sorted(simple_rt_nw_list, key=(lambda x: x[1]))
                            sorted_rt_nw_list = sorted(_s_list, key=(lambda x: x[2]), reverse=True)
                            for resource_type, nNewWorkers_orig, remainder in sorted_rt_nw_list:
                                if _countdown <= 0:
                                    break
                                dyn_num_workers[queueName][resource_type]['nNewWorkers'] += 1
                                _countdown -= 1
                        for resource_type in dyn_num_workers[queueName]:
                            if resource_type == 'ANY':
                                continue
                            nNewWorkers = dyn_num_workers[queueName][resource_type]['nNewWorkers']
                            tmpLog.debug('setting nNewWorkers to {0} of type {1} in order to respect RT aggregations for UCORE'
                                         .format(nNewWorkers, resource_type))

                if not apf_msg:
                    apf_data = copy.deepcopy(dyn_num_workers[queueName])

                self.apf_mon.update_label(queueName, apf_msg, apf_data)

            # dump
            tmpLog.debug('defined {0}'.format(str(dyn_num_workers)))
            return dyn_num_workers
        except Exception:
            # dump error
            errMsg = core_utils.dump_error_message(tmpLog)
            return None
예제 #10
0
    def start(self):
        # thread list
        thrList = []
        # Credential Manager
        from pandaharvester.harvesterbody.cred_manager import CredManager
        thr = CredManager(self.queueConfigMapper, single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.execute()
        thr.start()
        thrList.append(thr)
        # Command manager
        from pandaharvester.harvesterbody.command_manager import CommandManager
        thr = CommandManager(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.start()
        thrList.append(thr)
        # Cacher
        from pandaharvester.harvesterbody.cacher import Cacher
        thr = Cacher(self.communicatorPool, single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.execute(force_update=True, skip_lock=True)
        thr.start()
        thrList.append(thr)
        # Watcher
        from pandaharvester.harvesterbody.watcher import Watcher
        thr = Watcher(single_mode=self.singleMode)
        thr.set_stop_event(self.stopEvent)
        thr.start()
        thrList.append(thr)
        # Job Fetcher
        from pandaharvester.harvesterbody.job_fetcher import JobFetcher
        nThr = harvester_config.jobfetcher.nThreads
        for iThr in range(nThr):
            thr = JobFetcher(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Propagator
        from pandaharvester.harvesterbody.propagator import Propagator
        nThr = harvester_config.propagator.nThreads
        for iThr in range(nThr):
            thr = Propagator(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Monitor
        from pandaharvester.harvesterbody.monitor import Monitor
        nThr = harvester_config.monitor.nThreads
        for iThr in range(nThr):
            thr = Monitor(self.queueConfigMapper, single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Preparator
        from pandaharvester.harvesterbody.preparator import Preparator
        nThr = harvester_config.preparator.nThreads
        for iThr in range(nThr):
            thr = Preparator(self.communicatorPool,
                             self.queueConfigMapper,
                             single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Submitter
        from pandaharvester.harvesterbody.submitter import Submitter
        nThr = harvester_config.submitter.nThreads
        for iThr in range(nThr):
            thr = Submitter(self.queueConfigMapper,
                            single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Stager
        from pandaharvester.harvesterbody.stager import Stager
        nThr = harvester_config.stager.nThreads
        for iThr in range(nThr):
            thr = Stager(self.queueConfigMapper, single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # EventFeeder
        from pandaharvester.harvesterbody.event_feeder import EventFeeder
        nThr = harvester_config.eventfeeder.nThreads
        for iThr in range(nThr):
            thr = EventFeeder(self.communicatorPool,
                              self.queueConfigMapper,
                              single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Sweeper
        from pandaharvester.harvesterbody.sweeper import Sweeper
        nThr = harvester_config.sweeper.nThreads
        for iThr in range(nThr):
            thr = Sweeper(self.queueConfigMapper, single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)
        # Service monitor
        try:
            sm_active = harvester_config.service_monitor.active
        except Exception:
            sm_active = False

        if sm_active:
            from pandaharvester.harvesterbody.service_monitor import ServiceMonitor
            thr = ServiceMonitor(options.pid, single_mode=self.singleMode)
            thr.set_stop_event(self.stopEvent)
            thr.start()
            thrList.append(thr)

        # Report itself to APF Mon
        apf_mon = Apfmon(self.queueConfigMapper)
        apf_mon.create_factory()
        apf_mon.create_labels()

        ##################
        # loop on stop event to be interruptable since thr.join blocks signal capture in python 2.7
        while True:
            if self.singleMode or not self.daemonMode:
                break
            self.stopEvent.wait(1)
            if self.stopEvent.is_set():
                break
        ##################
        # join
        if self.daemonMode:
            for thr in thrList:
                thr.join()
예제 #11
0
class Submitter(AgentBase):
    # constructor
    def __init__(self, queue_config_mapper, single_mode=False):
        AgentBase.__init__(self, single_mode)
        self.queueConfigMapper = queue_config_mapper
        self.dbProxy = DBProxy()
        self.workerMaker = WorkerMaker()
        self.workerAdjuster = WorkerAdjuster(queue_config_mapper)
        self.pluginFactory = PluginFactory()
        self.monitor_fifo = MonitorFIFO()
        self.apfmon = Apfmon(self.queueConfigMapper)

    # main loop
    def run(self):
        lockedBy = 'submitter-{0}'.format(self.get_pid())
        monitor_fifo = self.monitor_fifo
        queueLockInterval = getattr(harvester_config.submitter, 'queueLockInterval',
                                    harvester_config.submitter.lockInterval)
        while True:
            sw_main = core_utils.get_stopwatch()
            mainLog = self.make_logger(_logger, 'id={0}'.format(lockedBy), method_name='run')
            mainLog.debug('getting queues to submit workers')

            # get queues associated to a site to submit workers
            curWorkers, siteName, resMap = self.dbProxy.get_queues_to_submit(harvester_config.submitter.nQueues,
                                                                             harvester_config.submitter.lookupTime,
                                                                             harvester_config.submitter.lockInterval,
                                                                             lockedBy, queueLockInterval)
            submitted = False
            if siteName is not None:
                mainLog.debug('got {0} queues for site {1}'.format(len(curWorkers), siteName))

                # get commands
                comStr = '{0}:{1}'.format(CommandSpec.COM_setNWorkers, siteName)
                commandSpecs = self.dbProxy.get_commands_for_receiver('submitter', comStr)
                mainLog.debug('got {0} {1} commands'.format(commandSpecs, comStr))
                for commandSpec in commandSpecs:
                    newLimits = self.dbProxy.set_queue_limit(siteName, commandSpec.params)
                    for tmpResource, tmpNewVal in iteritems(newLimits):
                        # if available, overwrite new worker value with the command from panda server
                        if tmpResource in resMap:
                            tmpQueueName = resMap[tmpResource]
                            if tmpQueueName in curWorkers:
                                curWorkers[tmpQueueName][tmpResource]['nNewWorkers'] = tmpNewVal

                # define number of new workers
                if len(curWorkers) == 0:
                    n_workers_per_queue_and_rt = dict()
                else:
                    n_workers_per_queue_and_rt = self.workerAdjuster.define_num_workers(curWorkers, siteName)

                if n_workers_per_queue_and_rt is None:
                    mainLog.error('WorkerAdjuster failed to define the number of workers')
                elif len(n_workers_per_queue_and_rt) == 0:
                    pass
                else:
                    # loop over all queues and resource types
                    for queueName in n_workers_per_queue_and_rt:
                        for resource_type, tmpVal in iteritems(n_workers_per_queue_and_rt[queueName]):

                            tmpLog = self.make_logger(_logger, 'id={0} queue={1} rtype={2}'.format(lockedBy,
                                                                                                   queueName,
                                                                                                   resource_type),
                                                      method_name='run')
                            try:
                                tmpLog.debug('start')
                                tmpLog.debug('workers status: %s' % tmpVal)
                                nWorkers = tmpVal['nNewWorkers'] + tmpVal['nReady']
                                nReady = tmpVal['nReady']

                                # check queue
                                if not self.queueConfigMapper.has_queue(queueName):
                                    tmpLog.error('config not found')
                                    continue

                                # no new workers
                                if nWorkers == 0:
                                    tmpLog.debug('skipped since no new worker is needed based on current stats')
                                    continue
                                # get queue
                                queueConfig = self.queueConfigMapper.get_queue(queueName)
                                workerMakerCore = self.workerMaker.get_plugin(queueConfig)
                                # check if resource is ready
                                if hasattr(workerMakerCore, 'dynamicSizing') and workerMakerCore.dynamicSizing is True:
                                    numReadyResources = self.workerMaker.num_ready_resources(queueConfig,
                                                                                             resource_type,
                                                                                             workerMakerCore)
                                    tmpLog.debug('numReadyResources: %s' % numReadyResources)
                                    if not numReadyResources:
                                        if hasattr(workerMakerCore, 'staticWorkers'):
                                            nQRWorkers = tmpVal['nQueue'] + tmpVal['nRunning']
                                            tmpLog.debug('staticWorkers: %s, nQRWorkers(Queue+Running): %s' %
                                                         (workerMakerCore.staticWorkers, nQRWorkers))
                                            if nQRWorkers >= workerMakerCore.staticWorkers:
                                                tmpLog.debug('No left static workers, skip')
                                                continue
                                            else:
                                                nWorkers = min(workerMakerCore.staticWorkers - nQRWorkers, nWorkers)
                                                tmpLog.debug('staticWorkers: %s, nWorkers: %s' %
                                                             (workerMakerCore.staticWorkers, nWorkers))
                                        else:
                                            tmpLog.debug('skip since no resources are ready')
                                            continue
                                    else:
                                        nWorkers = min(nWorkers, numReadyResources)
                                # post action of worker maker
                                if hasattr(workerMakerCore, 'skipOnFail') and workerMakerCore.skipOnFail is True:
                                    skipOnFail = True
                                else:
                                    skipOnFail = False
                                # actions based on mapping type
                                if queueConfig.mapType == WorkSpec.MT_NoJob:
                                    # workers without jobs
                                    jobChunks = []
                                    for i in range(nWorkers):
                                        jobChunks.append([])
                                elif queueConfig.mapType == WorkSpec.MT_OneToOne:
                                    # one worker per one job
                                    jobChunks = self.dbProxy.get_job_chunks_for_workers(
                                        queueName,
                                        nWorkers, nReady, 1, None,
                                        queueConfig.useJobLateBinding,
                                        harvester_config.submitter.checkInterval,
                                        harvester_config.submitter.lockInterval,
                                        lockedBy)
                                elif queueConfig.mapType == WorkSpec.MT_MultiJobs:
                                    # one worker for multiple jobs
                                    nJobsPerWorker = self.workerMaker.get_num_jobs_per_worker(queueConfig,
                                                                                              nWorkers,
                                                                                              resource_type,
                                                                                              maker=workerMakerCore)
                                    tmpLog.debug('nJobsPerWorker={0}'.format(nJobsPerWorker))
                                    jobChunks = self.dbProxy.get_job_chunks_for_workers(
                                        queueName,
                                        nWorkers, nReady, nJobsPerWorker, None,
                                        queueConfig.useJobLateBinding,
                                        harvester_config.submitter.checkInterval,
                                        harvester_config.submitter.lockInterval,
                                        lockedBy,
                                        queueConfig.allowJobMixture)
                                elif queueConfig.mapType == WorkSpec.MT_MultiWorkers:
                                    # multiple workers for one job
                                    nWorkersPerJob = self.workerMaker.get_num_workers_per_job(queueConfig,
                                                                                              nWorkers,
                                                                                              resource_type,
                                                                                              maker=workerMakerCore)
                                    maxWorkersPerJob = self.workerMaker.get_max_workers_per_job_in_total(
                                        queueConfig, resource_type, maker=workerMakerCore)
                                    maxWorkersPerJobPerCycle = self.workerMaker.get_max_workers_per_job_per_cycle(
                                        queueConfig, resource_type, maker=workerMakerCore)
                                    tmpLog.debug('nWorkersPerJob={0}'.format(nWorkersPerJob))
                                    jobChunks = self.dbProxy.get_job_chunks_for_workers(
                                        queueName,
                                        nWorkers, nReady, None, nWorkersPerJob,
                                        queueConfig.useJobLateBinding,
                                        harvester_config.submitter.checkInterval,
                                        harvester_config.submitter.lockInterval,
                                        lockedBy, max_workers_per_job_in_total=maxWorkersPerJob,
                                        max_workers_per_job_per_cycle=maxWorkersPerJobPerCycle)
                                else:
                                    tmpLog.error('unknown mapType={0}'.format(queueConfig.mapType))
                                    continue

                                tmpLog.debug('got {0} job chunks'.format(len(jobChunks)))
                                if len(jobChunks) == 0:
                                    continue
                                # make workers
                                okChunks, ngChunks = self.workerMaker.make_workers(jobChunks, queueConfig,
                                                                                   nReady, resource_type,
                                                                                   maker=workerMakerCore)
                                if len(ngChunks) == 0:
                                    tmpLog.debug('successfully made {0} workers'.format(len(okChunks)))
                                else:
                                    tmpLog.debug('made {0} workers, while {1} workers failed'.format(len(okChunks),
                                                                                                     len(ngChunks)))
                                timeNow = datetime.datetime.utcnow()
                                timeNow_timestamp = time.time()
                                pandaIDs = set()
                                # NG (=not good)
                                for ngJobs in ngChunks:
                                    for jobSpec in ngJobs:
                                        if skipOnFail:
                                            # release jobs when workers are not made
                                            pandaIDs.add(jobSpec.PandaID)
                                        else:
                                            jobSpec.status = 'failed'
                                            jobSpec.subStatus = 'failed_to_make'
                                            jobSpec.stateChangeTime = timeNow
                                            jobSpec.lockedBy = None
                                            errStr = 'failed to make a worker'
                                            jobSpec.set_pilot_error(PilotErrors.ERR_SETUPFAILURE, errStr)
                                            jobSpec.trigger_propagation()
                                            self.dbProxy.update_job(jobSpec, {'lockedBy': lockedBy,
                                                                              'subStatus': 'prepared'})
                                # OK
                                workSpecList = []
                                if len(okChunks) > 0:
                                    for workSpec, okJobs in okChunks:
                                        # has job
                                        if (queueConfig.useJobLateBinding and workSpec.workerID is None) \
                                                or queueConfig.mapType == WorkSpec.MT_NoJob:
                                            workSpec.hasJob = 0
                                        else:
                                            workSpec.hasJob = 1
                                            if workSpec.nJobsToReFill in [None, 0]:
                                                workSpec.set_jobspec_list(okJobs)
                                            else:
                                                # refill free slots during the worker is running
                                                workSpec.set_jobspec_list(okJobs[:workSpec.nJobsToReFill])
                                                workSpec.nJobsToReFill = None
                                                for jobSpec in okJobs[workSpec.nJobsToReFill:]:
                                                    pandaIDs.add(jobSpec.PandaID)
                                            workSpec.set_num_jobs_with_list()
                                        # map type
                                        workSpec.mapType = queueConfig.mapType
                                        # queue name
                                        workSpec.computingSite = queueConfig.queueName
                                        # set access point
                                        workSpec.accessPoint = queueConfig.messenger['accessPoint']
                                        # sync level
                                        workSpec.syncLevel = queueConfig.get_synchronization_level()
                                        # events
                                        if len(okJobs) > 0 and \
                                                ('eventService' in okJobs[0].jobParams or
                                                 'cloneJob' in okJobs[0].jobParams):
                                            workSpec.eventsRequest = WorkSpec.EV_useEvents
                                        workSpecList.append(workSpec)
                                if len(workSpecList) > 0:
                                    sw = core_utils.get_stopwatch()
                                    # get plugin for submitter
                                    submitterCore = self.pluginFactory.get_plugin(queueConfig.submitter)
                                    if submitterCore is None:
                                        # not found
                                        tmpLog.error(
                                            'submitter plugin for {0} not found'.format(jobSpec.computingSite))
                                        continue
                                    # get plugin for messenger
                                    messenger = self.pluginFactory.get_plugin(queueConfig.messenger)
                                    if messenger is None:
                                        # not found
                                        tmpLog.error(
                                            'messenger plugin for {0} not found'.format(jobSpec.computingSite))
                                        continue
                                    # setup access points
                                    messenger.setup_access_points(workSpecList)
                                    # feed jobs
                                    for workSpec in workSpecList:
                                        if workSpec.hasJob == 1:
                                            tmpStat = messenger.feed_jobs(workSpec, workSpec.get_jobspec_list())
                                            if tmpStat is False:
                                                tmpLog.error(
                                                    'failed to send jobs to workerID={0}'.format(workSpec.workerID))
                                            else:
                                                tmpLog.debug(
                                                    'sent jobs to workerID={0} with {1}'.format(workSpec.workerID,
                                                                                                tmpStat))
                                    # insert workers
                                    self.dbProxy.insert_workers(workSpecList, lockedBy)
                                    # submit
                                    sw.reset()
                                    tmpLog.info('submitting {0} workers'.format(len(workSpecList)))
                                    workSpecList, tmpRetList, tmpStrList = self.submit_workers(submitterCore,
                                                                                               workSpecList)
                                    tmpLog.debug('done submitting {0} workers'.format(len(workSpecList))
                                                    + sw.get_elapsed_time())
                                    # collect successful jobs
                                    okPandaIDs = set()
                                    for iWorker, (tmpRet, tmpStr) in enumerate(zip(tmpRetList, tmpStrList)):
                                        if tmpRet:
                                            workSpec, jobList = okChunks[iWorker]
                                            jobList = workSpec.get_jobspec_list()
                                            if jobList is not None:
                                                for jobSpec in jobList:
                                                    okPandaIDs.add(jobSpec.PandaID)
                                    # loop over all workers
                                    for iWorker, (tmpRet, tmpStr) in enumerate(zip(tmpRetList, tmpStrList)):
                                        workSpec, jobList = okChunks[iWorker]
                                        # set harvesterHost
                                        workSpec.harvesterHost = socket.gethostname()
                                        # use associated job list since it can be truncated for re-filling
                                        jobList = workSpec.get_jobspec_list()
                                        # set status
                                        if not tmpRet:
                                            # failed submission
                                            errStr = 'failed to submit a workerID={0} with {1}'.format(
                                                workSpec.workerID,
                                                tmpStr)
                                            tmpLog.error(errStr)
                                            workSpec.set_status(WorkSpec.ST_missed)
                                            workSpec.set_dialog_message(tmpStr)
                                            workSpec.set_pilot_error(PilotErrors.ERR_SETUPFAILURE, errStr)
                                            if jobList is not None:
                                                # increment attempt number
                                                newJobList = []
                                                for jobSpec in jobList:
                                                    # skip if successful with another worker
                                                    if jobSpec.PandaID in okPandaIDs:
                                                        continue
                                                    if jobSpec.submissionAttempts is None:
                                                        jobSpec.submissionAttempts = 0
                                                    jobSpec.submissionAttempts += 1
                                                    # max attempt or permanent error
                                                    if tmpRet is False or \
                                                            jobSpec.submissionAttempts >= \
                                                            queueConfig.maxSubmissionAttempts:
                                                        newJobList.append(jobSpec)
                                                    else:
                                                        self.dbProxy.increment_submission_attempt(
                                                            jobSpec.PandaID,
                                                            jobSpec.submissionAttempts)
                                                jobList = newJobList
                                        elif queueConfig.useJobLateBinding and workSpec.hasJob == 1:
                                            # directly go to running after feeding jobs for late biding
                                            workSpec.set_status(WorkSpec.ST_running)
                                        else:
                                            # normal successful submission
                                            workSpec.set_status(WorkSpec.ST_submitted)
                                        workSpec.submitTime = timeNow
                                        workSpec.modificationTime = timeNow
                                        workSpec.checkTime = timeNow
                                        if self.monitor_fifo.enabled:
                                            workSpec.set_work_params({'lastCheckAt': timeNow_timestamp})
                                        # prefetch events
                                        if tmpRet and workSpec.hasJob == 1 and \
                                                workSpec.eventsRequest == WorkSpec.EV_useEvents and \
                                                queueConfig.prefetchEvents:
                                            workSpec.eventsRequest = WorkSpec.EV_requestEvents
                                            eventsRequestParams = dict()
                                            for jobSpec in jobList:
                                                eventsRequestParams[jobSpec.PandaID] = \
                                                    {'pandaID': jobSpec.PandaID,
                                                     'taskID': jobSpec.taskID,
                                                     'jobsetID': jobSpec.jobParams['jobsetID'],
                                                     'nRanges': max(int(math.ceil(workSpec.nCore / len(jobList))),
                                                                    jobSpec.jobParams['coreCount']),
                                                     }
                                            workSpec.eventsRequestParams = eventsRequestParams
                                        # register worker
                                        tmpStat = self.dbProxy.register_worker(workSpec, jobList, lockedBy)
                                        if jobList is not None:
                                            for jobSpec in jobList:
                                                pandaIDs.add(jobSpec.PandaID)
                                                if tmpStat:
                                                    if tmpRet:
                                                        tmpStr = \
                                                            'submitted a workerID={0} for PandaID={1} with batchID={2}'
                                                        tmpLog.info(tmpStr.format(workSpec.workerID,
                                                                                  jobSpec.PandaID,
                                                                                  workSpec.batchID))
                                                    else:
                                                        tmpStr = 'failed to submit a workerID={0} for PandaID={1}'
                                                        tmpLog.error(tmpStr.format(workSpec.workerID,
                                                                                   jobSpec.PandaID))
                                                else:
                                                    tmpStr = \
                                                        'failed to register a worker for PandaID={0} with batchID={1}'
                                                    tmpLog.error(tmpStr.format(jobSpec.PandaID, workSpec.batchID))
                                    # enqueue to monitor fifo
                                    if self.monitor_fifo.enabled \
                                            and queueConfig.mapType != WorkSpec.MT_MultiWorkers:
                                        workSpecsToEnqueue = \
                                            [[w] for w in workSpecList if w.status
                                             in (WorkSpec.ST_submitted, WorkSpec.ST_running)]
                                        check_delay = min(
                                                        getattr(harvester_config.monitor, 'eventBasedCheckInterval',
                                                                harvester_config.monitor.checkInterval),
                                                        getattr(harvester_config.monitor, 'fifoCheckInterval',
                                                                harvester_config.monitor.checkInterval))
                                        monitor_fifo.put((queueName, workSpecsToEnqueue), time.time() + check_delay)
                                        mainLog.debug('put workers to monitor FIFO')
                                    submitted = True
                                # release jobs
                                self.dbProxy.release_jobs(pandaIDs, lockedBy)
                                tmpLog.info('done')
                            except Exception:
                                core_utils.dump_error_message(tmpLog)
                # release the site
                self.dbProxy.release_site(siteName, lockedBy)
                if sw_main.get_elapsed_time_in_sec() > queueLockInterval:
                    mainLog.warning('a submitter cycle was longer than queueLockInterval {0} sec'.format(queueLockInterval)
                                    + sw_main.get_elapsed_time())
            mainLog.debug('done')
            # define sleep interval
            if siteName is None:
                sleepTime = harvester_config.submitter.sleepTime
            else:
                sleepTime = 0
                if submitted and hasattr(harvester_config.submitter, 'minSubmissionInterval'):
                    interval = harvester_config.submitter.minSubmissionInterval
                    if interval > 0:
                        newTime = datetime.datetime.utcnow() + datetime.timedelta(seconds=interval)
                        self.dbProxy.update_panda_queue_attribute('submitTime', newTime, site_name=siteName)

            # time the cycle
            mainLog.debug('done a submitter cycle' + sw_main.get_elapsed_time())
            # check if being terminated
            if self.terminated(sleepTime):
                mainLog.debug('terminated')
                return

    # wrapper for submitWorkers to skip ready workers
    def submit_workers(self, submitter_core, workspec_list):
        retList = []
        strList = []
        newSpecList = []
        workersToSubmit = []
        for workSpec in workspec_list:
            if workSpec.status in [WorkSpec.ST_ready, WorkSpec.ST_running]:
                newSpecList.append(workSpec)
                retList.append(True)
                strList.append('')
            else:
                workersToSubmit.append(workSpec)
        tmpRetList = submitter_core.submit_workers(workersToSubmit)

        # submit the workers to the monitoring
        self.apfmon.create_workers(workersToSubmit)

        for tmpRet, tmpStr in tmpRetList:
            retList.append(tmpRet)
            strList.append(tmpStr)
        newSpecList += workersToSubmit
        return newSpecList, retList, strList