def wait_for_score(self, types, timeout=20.0, score_threshold=35):
"""Wait for services to have a score greater than the threshold."""
deadline = time.time() + timeout
while time.time() < deadline:
wait = False
for type_ in types:
try:
all_svcs = self.conscience.all_services(type_)
for service in all_svcs:
if int(service['score']) < score_threshold:
wait = True
break
else:
# No service registered yet, must wait.
if not all_svcs:
wait = True
except Exception as err:
logging.warn('Could not check service score: %s', err)
wait = True
if wait:
# No need to check other types, we have to wait anyway
break
if not wait:
return
time.sleep(1)
logging.info('Service(s) fails to reach %d score (timeout %d)',
score_threshold, timeout)
def converter_pass(self, input_file=None):
def report(tag, now=None):
if now is None:
now = time.time()
total_time = now - self.start_time
self.logger.info(
'%(tag)s %(volume)s '
'started=%(start_time)s '
'passes=%(passes)d '
'errors=%(errors)d '
'chunks=%(nb_chunks)d %(c_rate).2f/s '
'total_time=%(total_time).2f '
'(converter: %(success_rate).2f%%)' % {
'tag':
tag,
'volume':
self.volume_id,
'start_time':
datetime.fromtimestamp(int(self.start_time)).isoformat(),
'passes':
self.passes,
'errors':
self.errors,
'nb_chunks':
self.total_chunks_processed,
'c_rate':
self.total_chunks_processed / total_time,
'total_time':
total_time,
'success_rate':
100 * ((self.total_chunks_processed - self.errors) /
(float(self.total_chunks_processed) or 1.0))
})
self.passes = 0
self.last_reported = now
self.start_time = time.time()
self.errors = 0
self.passes = 0
self.backup_name = 'backup_%s_%f' % (self.volume_id, self.start_time)
paths = self.paths_gen(input_file=input_file)
for path in paths:
self.safe_convert_chunk(path)
now = time.time()
if now - self.last_reported >= self.report_interval:
report('RUN', now=now)
self.chunks_run_time = ratelimit(self.chunks_run_time,
self.max_chunks_per_second)
report('DONE')
return self.errors == 0
def wait_for_ready_job(self, tube, timeout=float('inf'),
poll_interval=0.2):
"""
Wait until the the specified tube has a ready job,
or the timeout expires.
"""
self.use(tube)
job_id, data = self.peek_ready()
deadline = time.time() + timeout
while job_id is None and time.time() < deadline:
time.sleep(poll_interval)
job_id, data = self.peek_ready()
return job_id, data
def run(self):
"""
Main worker loop
"""
self.start_time = time.time()
while not self._stop:
try:
self.crawl_volume()
self.last_scan_time = time.time()
time.sleep(self.scans_interval)
except exc.OioException as exception:
self.logger.exception("ERROR during indexing meta2: %s",
exception)
def run(self):
self.tool.start_time = self.tool.last_report = time.time()
self.tool.log_report('START', force=True)
reply_loc = {
'addr': self.beanstalkd_reply.addr,
'tube': self.beanstalkd_reply.tube
}
# pylint: disable=no-member
thread = threading.Thread(target=self._distribute_events,
args=[reply_loc])
thread.start()
# Wait until the thread is started sending events
while self.sending is None:
sleep(0.1)
# Retrieve responses until all events are processed
try:
while not self._all_events_are_processed():
tasks_res = self.beanstalkd_reply.fetch_job(
self._tasks_res_from_res_event,
timeout=DISTRIBUTED_DISPATCHER_TIMEOUT)
for task_res in tasks_res:
self.tool.update_counters(task_res)
yield task_res
self.tool.log_report('RUN')
except OioTimeout:
self.logger.error('No response for %d seconds',
DISTRIBUTED_DISPATCHER_TIMEOUT)
self.tool.success = False
except Exception: # pylint: disable=broad-except
self.logger.exception('ERROR in distributed dispatcher')
self.tool.success = False
self.tool.log_report('DONE', force=True)
def report(self, tag):
"""
Log the status of indexer
:param tag: One of three: starting, running, ended.
"""
total = self.success_nb + self.failed_nb
now = time.time()
elapsed = (now - self.start_time) or 0.00001
since_last_rprt = (now - self.last_report_time) or 0.00001
self.logger.info(
'volume_id=%(volume_id)s %(tag)s=%(current_time)s '
'elapsed=%(elapsed).02f '
'pass=%(pass)d '
'errors=%(errors)d '
'containers_indexed=%(total_indexed)d %(index_rate).2f/s',
{
'volume_id': self.volume_id,
'tag': tag,
'current_time': datetime.fromtimestamp(
int(now)).isoformat(),
'pass': self.full_scan_nb,
'errors': self.failed_nb,
'total_indexed': total,
'index_rate': self.indexed_since_last_report / since_last_rprt,
'elapsed': elapsed
}
)
self.last_report_time = now
self.indexed_since_last_report = 0
def run(self, *args, **kwargs):
time.sleep(random() * self.interval)
while True:
pre = time.time()
try:
self.index_pass()
except exc.VolumeException as err:
self.logger.error('Cannot index chunks, will retry later: %s',
err)
except Exception as err:
self.logger.exception('ERROR during indexing: %s', err)
else:
self.passes += 1
elapsed = (time.time() - pre) or 0.000001
if elapsed < self.interval:
time.sleep(self.interval - elapsed)
def __init__(self, conf, logger=None, **kwargs):
self.conf = conf
self.logger = logger or get_logger(conf)
volume = conf.get('volume')
if not volume:
raise ConfigurationException('No volume specified for converter')
self.volume = volume
self.namespace, self.volume_id = check_volume(self.volume)
# cache
self.name_by_cid = CacheDict()
self.content_id_by_name = CacheDict()
# client
self.container_client = ContainerClient(conf, **kwargs)
self.content_factory = ContentFactory(conf,
self.container_client,
logger=self.logger)
self._rdir = None # we may never need it
# stats/logs
self.errors = 0
self.passes = 0
self.total_chunks_processed = 0
self.start_time = 0
self.last_reported = 0
self.report_interval = int_value(conf.get('report_interval'), 3600)
# speed
self.chunks_run_time = 0
self.max_chunks_per_second = int_value(conf.get('chunks_per_second'),
30)
# backup
self.no_backup = true_value(conf.get('no_backup', False))
self.backup_dir = conf.get('backup_dir') or tempfile.gettempdir()
self.backup_name = 'backup_%s_%f' \
% (self.volume_id, time.time())
# dry run
self.dry_run = true_value(conf.get('dry_run', False))
def wait_until_empty(self, tube, timeout=float('inf'), poll_interval=0.2,
initial_delay=0.0):
"""
Wait until the the specified tube is empty, or the timeout expires.
"""
# TODO(FVE): check tube stats to ensure some jobs have passed through
# and then get rid of the initial_delay
# peek-ready requires "use", not "watch"
self.use(tube)
if initial_delay > 0.0:
time.sleep(initial_delay)
job_id, _ = self.peek_ready()
deadline = time.time() + timeout
while job_id is not None and time.time() < deadline:
time.sleep(poll_interval)
job_id, _ = self.peek_ready()
def report(tag, now=None):
if now is None:
now = time.time()
total_time = now - self.start_time
self.logger.info(
'%(tag)s %(volume)s '
'started=%(start_time)s '
'passes=%(passes)d '
'errors=%(errors)d '
'chunks=%(nb_chunks)d %(c_rate).2f/s '
'total_time=%(total_time).2f '
'(converter: %(success_rate).2f%%)' % {
'tag':
tag,
'volume':
self.volume_id,
'start_time':
datetime.fromtimestamp(int(self.start_time)).isoformat(),
'passes':
self.passes,
'errors':
self.errors,
'nb_chunks':
self.total_chunks_processed,
'c_rate':
self.total_chunks_processed / total_time,
'total_time':
total_time,
'success_rate':
100 * ((self.total_chunks_processed - self.errors) /
(float(self.total_chunks_processed) or 1.0))
})
self.passes = 0
self.last_reported = now
def run(self):
self.tool.start_time = self.tool.last_report = time.time()
self.tool.log_report('START', force=True)
try:
with ContextPool(len(self.workers) + 1) as pool:
# spawn workers
for worker in self.workers:
pool.spawn(worker.run)
# spawn one worker to fill the queue
pool.spawn(self._fill_queue_and_wait_all_items)
# with the main thread
while True:
task_res = self.queue_reply.get()
if task_res is None: # end signal
break
self.tool.update_counters(task_res)
yield task_res
self.tool.log_report('RUN')
except Exception: # pylint: disable=broad-except
self.logger.exception('ERROR in local dispatcher')
self.tool.success = False
self.tool.log_report('DONE', force=True)
def rebuilder_pass(self, **kwargs):
self.start_time = self.last_report = time.time()
self.log_report('START', force=True)
workers = list()
with ContextPool(self.nworkers + 1) as pool:
# spawn one worker for the retry queue
rqueue = eventlet.Queue(self.nworkers)
pool.spawn(self._read_retry_queue, rqueue, **kwargs)
# spawn workers to rebuild
queue = eventlet.Queue(self.nworkers * 10)
for i in range(self.nworkers):
worker = self._create_worker(**kwargs)
workers.append(worker)
pool.spawn(worker.rebuilder_pass,
i,
queue,
retry_queue=rqueue,
**kwargs)
# fill the queue (with the main thread)
self._fill_queue(queue, **kwargs)
# block until all items are rebuilt
queue.join()
# block until the retry queue is empty
rqueue.join()
self.log_report('DONE', force=True)
return self.total_errors == 0
def log_report(self, status, force=False):
"""
Log a report with a fixed interval.
"""
end_time = time.time()
if force or (end_time - self.last_report >= self.report_interval):
counters = self._update_total_counters()
self.logger.info(self._get_report(status, end_time, counters))
self.last_report = end_time
def access_log_wrapper(self, req, *args, **kwargs):
code = -1
pre = time.time()
try:
rc = func(self, req, *args, **kwargs)
code = rc._status_code
return rc
except HTTPException as exc:
code = exc.code
raise
finally:
post = time.time()
# remote method code time size user reqid uri
self.logger.info('%s %s %d %d %s %s %s %s',
req.environ['HTTP_HOST'],
req.environ['REQUEST_METHOD'], code,
int((post - pre) * 1000000), '-', '-', '-',
req.environ['RAW_URI'])
def index_pass(self):
start_time = time.time()
self.last_reported = start_time
self.errors = 0
self.successes = 0
paths = paths_gen(self.volume)
self.report('started', start_time)
for path in paths:
self.safe_update_index(path)
self.chunks_run_time = ratelimit(
self.chunks_run_time,
self.max_chunks_per_second
)
now = time.time()
if now - self.last_reported >= self.report_interval:
self.report('running', start_time)
self.report('ended', start_time)
def wait_for_event(self,
tube,
reqid=None,
types=None,
fields=None,
timeout=30.0):
"""
Wait for an event in the specified tube.
If reqid, types and/or fields are specified, drain events until the
specified event is found.
:param fields: dict of fields to look for in the event's URL
:param types: list of types of events the method should look for
"""
self.beanstalkd0.wait_for_ready_job(tube, timeout=timeout)
self.beanstalkd0.watch(tube)
now = time.time()
deadline = now + timeout
try:
job_id = True
while now < deadline:
to = max(0.0, deadline - now)
job_id, data = self.beanstalkd0.reserve(timeout=to)
event = Event(jsonlib.loads(data))
self.beanstalkd0.delete(job_id)
now = time.time()
if types and event.event_type not in types:
logging.debug("ignore event %s (event mismatch)", data)
continue
if reqid and event.reqid != reqid:
logging.info("ignore event %s (request_id mismatch)", data)
continue
if fields and any(fields[k] != event.url.get(k)
for k in fields):
logging.info("ignore event %s (filter mismatch)", data)
continue
logging.info("event %s", data)
return event
logging.warn(
('wait_for_event(reqid=%s, types=%s, fields=%s, timeout=%s) '
'reached its timeout'), reqid, types, fields, timeout)
except ResponseError as err:
logging.warn('%s', err)
return None
def __init__(self, conf, logger, volume, container_ids):
self.conf = conf
self.logger = logger
self.volume = volume
self.volume_ns, self.volume_id = check_volume(self.volume)
self.container_ids = container_ids or list()
self.container_ids = [
container_id.upper() for container_id in self.container_ids
]
self.namespace = self.conf['namespace']
if self.namespace != self.volume_ns:
raise ValueError(
'Namespace (%s) mismatch with volume namespace (%s)',
self.namespace, self.volume_ns)
# action
self.action_name = self.conf['action'].lower()
if (self.action_name == 'insert'):
self.action = self._insert_bean
elif (self.action_name == 'update'):
self.action = self._update_bean
elif (self.action_name == 'check'):
self.action = self._check_bean
else:
raise ValueError('Unknown action (%s)', self.action_name)
# speed
self.chunks_run_time = 0
self.max_chunks_per_second = int_value(
self.conf.get('chunks_per_second'), self.DEFAULT_CHUNKS_PER_SECOND)
# counters
self.chunks_processed = 0
self.chunk_errors = 0
self.beans_processed = dict()
self.bean_successes = dict()
self.bean_already_exists = dict()
self.bean_orphans = dict()
self.bean_errors = dict()
for bean_type in self.BEAN_TYPES:
self.beans_processed[bean_type] = 0
self.bean_successes[bean_type] = 0
self.bean_already_exists[bean_type] = 0
self.bean_orphans[bean_type] = 0
self.bean_errors[bean_type] = 0
# report
self.start_time = 0
self.last_report = 0
self.report_interval = int_value(conf.get('report_interval'),
self.DEFAULT_REPORT_INTERVAL)
self.client = ContainerClient({'namespace': self.namespace},
logger=self.logger)
self.ctime = int(time.time())
def wait_for_event(self,
tube,
reqid=None,
type_=None,
fields=None,
timeout=30.0):
"""
Wait for an event in the specified tube.
If reqid, type_ and/or fields are specified, drain events until the
specified event is found.
"""
self.beanstalkd0.wait_for_ready_job(tube, timeout=timeout)
self.beanstalkd0.watch(tube)
now = time.time()
deadline = now + timeout
try:
job_id = True
while now < deadline:
to = max(0.0, deadline - now)
job_id, data = self.beanstalkd0.reserve(timeout=to)
edata = jsonlib.loads(data)
self.beanstalkd0.delete(job_id)
now = time.time()
if type_ and edata['event'] != type_:
logging.debug("ignore event %s (event mismatch)", data)
continue
if reqid and edata.get('request_id') != reqid:
logging.info("ignore event %s (request_id mismatch)", data)
continue
if fields and any(fields[k] != edata.get('url', {}).get(k)
for k in fields):
logging.info("ignore event %s (filter mismatch)", data)
continue
logging.info("event %s", data)
return edata
logging.warn(
('wait_for_event(reqid=%s, type_=%s, fields=%s, timeout=%s) '
'reached its timeout'), reqid, type_, fields, timeout)
except ResponseError as err:
logging.info('%s', err)
return None
def log_report(self, status, force=False, **kwargs):
end_time = time.time()
if (force and self.lock_report.acquire()) \
or (end_time - self.last_report >= self.report_interval
and self.lock_report.acquire(False)):
try:
counters = self.update_totals()
self.logger.info(
self._get_report(status, end_time, counters, **kwargs))
self.last_report = end_time
finally:
self.lock_report.release()
def resolve_service_id(self, service_type, service_id, check_format=True):
"""
:returns: Service address corresponding to the service ID
"""
if check_format:
url = "http://" + service_id
parsed = urlparse(url)
if parsed.port is not None:
return service_id
cached_service_id = self._service_ids.get(service_id)
if cached_service_id \
and (time.time() - cached_service_id['mtime']
< self._service_id_max_age):
return cached_service_id['addr']
result = self.resolve(srv_type=service_type, service_id=service_id)
service_addr = result['addr']
self._service_ids[service_id] = {
'addr': service_addr,
'mtime': time.time()
}
return service_addr
def crawl_volume(self):
"""
Crawl the volume assigned to this worker, and index every database.
"""
paths = paths_gen(self.volume)
self.full_scan_nb += 1
self.success_nb = 0
self.failed_nb = 0
now = time.time()
self.last_report_time = now
self.report("starting")
for db_path in paths:
# Graceful exit, hopefully
if self._stop:
break
db_id = db_path.rsplit("/")[-1].rsplit(".")
if len(db_id) != 3:
self.warn("Malformed db file name !", db_path)
continue
db_id = ".".join(db_id[:2])
self.index_meta2_database(db_id)
self.last_index_time = ratelimit(
self.last_index_time,
self.max_indexed_per_second
)
now = time.time()
if now - self.last_report_time >= self.report_interval:
self.report("running")
self.report("ended")
def get_tasks(self, job_params, marker=None):
service_id = job_params['service_id']
usage_target = job_params['usage_target']
usage_check_interval = job_params['usage_check_interval']
if usage_target > 0:
now = time.time()
current_usage = self.get_usage(service_id)
if current_usage <= usage_target:
self.logger.info(
'current usage %.2f%%: target already reached (%.2f%%)',
current_usage, usage_target)
return
last_usage_check = now
chunk_infos = self.get_chunk_infos(job_params, marker=marker)
for container_id, content_id, chunk_id, _ in chunk_infos:
task_id = '|'.join((container_id, content_id, chunk_id))
yield task_id, {
'container_id': container_id,
'content_id': content_id,
'chunk_id': chunk_id
}
if usage_target <= 0:
continue
now = time.time()
if now - last_usage_check < usage_check_interval:
continue
current_usage = self.get_usage(service_id)
if current_usage > usage_target:
last_usage_check = now
continue
self.logger.info('current usage %.2f%%: target reached (%.2f%%)',
current_usage, usage_target)
return
def wait_for_event(self, tube, reqid=None, type_=None, timeout=30.0):
"""
Wait for an event in the specified tube.
If reqid and/or type_ are specified, drain events until the specified
event is found.
"""
self.beanstalkd0.wait_for_ready_job(tube, timeout=timeout)
self.beanstalkd0.watch(tube)
now = time.time()
deadline = now + timeout
try:
job_id = True
while now < deadline:
to = max(0.0, deadline - now)
job_id, data = self.beanstalkd0.reserve(timeout=to)
edata = jsonlib.loads(data)
self.beanstalkd0.delete(job_id)
if not type_ or edata['event'] == type_:
if not reqid or edata.get('request_id') == reqid:
return edata
now = time.time()
except ResponseError as err:
logging.info('%s', err)
return None
def index_meta2_database(self, db_id):
"""
Add a meta2 database to the rdir index. Fails if the database isn't
handled by the current volume.
:param db_id: The ContentID representing the reference to the database.
"""
if len(db_id) < STRLEN_REFERENCEID:
self.warn('Not a valid container ID', db_id)
return
try:
srvcs = self.dir_client.list(cid=db_id)
account, container = srvcs['account'], srvcs['name']
is_peer = self.volume_id in [
x['host'] for x in srvcs['srv'] if x['type'] == 'meta2'
]
container_id = db_id.rsplit(".")[0]
if six.PY2:
if isinstance(account, six.text_type):
account = account.encode('utf-8')
if isinstance(container, six.text_type):
container = container.encode('utf-8')
cont_url = "{0}/{1}/{2}".format(self.namespace, account, container)
if not is_peer:
self.warn(
"Trying to index a container that isn't handled by"
"this volume", db_id)
if self.attempt_bad_index_removal:
self._attempt_index_removal(cont_url, container_id)
return
self.index_client.meta2_index_push(volume_id=self.volume_id,
container_url=cont_url,
mtime=time.time(),
container_id=container_id)
self.success_nb += 1
except exc.OioException as exception:
self.failed_nb += 1
self.warn("Unable to to index container: %s" % str(exception),
db_id)
self.indexed_since_last_report += 1
def update_index(self, path, chunk_id):
with open(path) as file_:
try:
meta = None
if meta is None:
meta, _ = read_chunk_metadata(file_, chunk_id)
except exc.MissingAttribute as err:
raise exc.FaultyChunk(err)
data = {'mtime': int(time.time())}
headers = {REQID_HEADER: request_id('blob-indexer-')}
self.index_client.chunk_push(self.volume_id,
meta['container_id'],
meta['content_id'],
meta['chunk_id'],
headers=headers,
**data)
def task_event_from_item(item):
namespace, container_id, content_id, chunk_id_or_pos = item
return \
{
'when': time.time(),
'event': EventTypes.CONTENT_BROKEN,
'url': {
'ns': namespace,
'id': container_id,
'content': content_id
},
'data': {
'missing_chunks': [
chunk_id_or_pos
]
}
}
def res_event_from_task_res(task_res):
item, bytes_processed, error = task_res
namespace, container_id, content_id, chunk_id_or_pos = item
return \
{
'when': time.time(),
'event': EventTypes.CONTENT_REBUILT,
'url': {
'ns': namespace,
'id': container_id,
'content': content_id
},
'data': {
'chunks_rebuilt': [{
'chunk_id_or_pos': chunk_id_or_pos,
'bytes_processed': bytes_processed,
'error': error
}]
}
}
def pass_volume(self):
self.start_time = self.last_report = time.time()
self.log_report('START', force=True)
paths = paths_gen(self.volume)
for path in paths:
try:
self.pass_chunk_file(path)
self.chunks_processed += 1
except Exception as exc:
self.logger.error(
'Failed to pass chunk file (chunk_file=%s): %s', path, exc)
self.chunk_errors += 1
self.log_report('RUN')
self.chunks_run_time = ratelimit(self.chunks_run_time,
self.max_chunks_per_second)
self.log_report('DONE', force=True)
return self.chunk_errors == 0 \
and all(errors == 0 for errors in self.bean_errors.values())
def report(self, tag, start_time):
total = self.errors + self.successes
now = time.time()
elapsed = (now - start_time) or 0.000001
self.logger.info(
'%(tag)s=%(current_time)s '
'elapsed=%(elapsed).02f '
'pass=%(pass)d '
'errors=%(errors)d '
'chunks=%(nb_chunks)d %(c_rate).2f/s' % {
'tag': tag,
'current_time': datetime.fromtimestamp(
int(now)).isoformat(),
'pass': self.passes,
'errors': self.errors,
'nb_chunks': total,
'c_rate': self.total_since_last_reported /
(now - self.last_reported),
'elapsed': elapsed
}
)
self.last_reported = now
self.total_since_last_reported = 0
def rebuilder_pass(self, **kwargs):
self.start_time = self.last_report = time.time()
self.log_report('START', force=True)
workers = list()
with ContextPool(self.concurrency + 1) as pool:
# spawn one worker for the retry queue
rqueue = eventlet.Queue(self.concurrency)
pool.spawn(self._read_retry_queue, rqueue, **kwargs)
# spawn workers to rebuild
queue = eventlet.Queue(self.concurrency * 10)
for i in range(self.concurrency):
worker = self._create_worker(**kwargs)
workers.append(worker)
pool.spawn(worker.rebuilder_pass,
i,
queue,
retry_queue=rqueue,
**kwargs)
# fill the queue (with the main thread)
try:
self._fill_queue(queue, **kwargs)
except Exception as exc:
if self.running:
self.logger.error("Failed to fill queue: %s", exc)
self.success = False
# block until all items are rebuilt
queue.join()
# block until the retry queue is empty
rqueue.join()
self.log_report('DONE', force=True)
return self.success and self.total_errors == 0
