class TaskJobManager(object):
"""Manage task job submit, poll and kill.
This class provides logic to:
* Submit task jobs.
* Poll task jobs.
* Kill task jobs.
* Set up the directory structure on job hosts.
* Install suite communicate client files on job hosts.
* Remove suite contact files on job hosts.
"""
JOB_FILE_BASE = BatchSysManager.JOB_FILE_BASE
JOBS_KILL = "jobs-kill"
JOBS_POLL = "jobs-poll"
JOBS_SUBMIT = SuiteProcPool.JOBS_SUBMIT
KEY_EXECUTE_TIME_LIMIT = "execution_time_limit"
def __init__(self, suite, proc_pool, suite_db_mgr, suite_srv_files_mgr):
self.suite = suite
self.proc_pool = proc_pool
self.suite_db_mgr = suite_db_mgr
self.task_events_mgr = TaskEventsManager(
suite, proc_pool, suite_db_mgr)
self.task_events_mgr.job_poll = self.poll_task_jobs
self.job_file_writer = JobFileWriter()
self.suite_srv_files_mgr = suite_srv_files_mgr
self.init_host_map = {} # {(user, host): should_unlink, ...}
self.single_task_mode = False
def check_task_jobs(self, suite, task_pool):
"""Check submission and execution timeout and polling timers.
Poll tasks that have timed out and/or have reached next polling time.
"""
now = time()
poll_tasks = set()
for itask in task_pool.get_tasks():
if (self._check_timeout(itask, now) or
self.task_events_mgr.set_poll_time(itask, now)):
poll_tasks.add(itask)
if poll_tasks:
self.poll_task_jobs(suite, poll_tasks)
def init_host(self, reg, host, owner):
"""Initialise suite run dir on a user@host.
Create SUITE_RUN_DIR/log/job/ if necessary.
Install suite contact environment file.
Install suite python modules.
Raise RemoteJobHostInitError if initialisation cannot complete.
"""
if host is None:
host = 'localhost'
if (self.single_task_mode or
(host, owner) in self.init_host_map or
not is_remote(host, owner)):
return
user_at_host = host
if owner:
user_at_host = owner + '@' + host
r_suite_run_dir = GLOBAL_CFG.get_derived_host_item(
reg, 'suite run directory', host, owner)
r_log_job_dir = GLOBAL_CFG.get_derived_host_item(
reg, 'suite job log directory', host, owner)
r_suite_srv_dir = os.path.join(
r_suite_run_dir, self.suite_srv_files_mgr.DIR_BASE_SRV)
# Create a UUID file in the service directory.
# If remote host has the file in its service directory, we can assume
# that the remote host has a shared file system with the suite host.
ssh_tmpl = GLOBAL_CFG.get_host_item('ssh command', host, owner)
uuid_str = str(uuid4())
uuid_fname = os.path.join(
self.suite_srv_files_mgr.get_suite_srv_dir(reg), uuid_str)
try:
open(uuid_fname, 'wb').close()
proc = Popen(
shlex.split(ssh_tmpl) + [
'-n', user_at_host,
'test', '-e', os.path.join(r_suite_srv_dir, uuid_str)],
stdout=PIPE, stderr=PIPE)
if proc.wait() == 0:
# Initialised, but no need to tidy up
self.init_host_map[(host, owner)] = False
return
finally:
try:
os.unlink(uuid_fname)
except OSError:
pass
cmds = []
# Command to create suite directory structure on remote host.
cmds.append(shlex.split(ssh_tmpl) + [
'-n', user_at_host,
'mkdir', '-p',
r_suite_run_dir, r_log_job_dir, r_suite_srv_dir])
# Command to copy contact and authentication files to remote host.
# Note: no need to do this if task communication method is "poll".
should_unlink = GLOBAL_CFG.get_host_item(
'task communication method', host, owner) != "poll"
if should_unlink:
scp_tmpl = GLOBAL_CFG.get_host_item('scp command', host, owner)
# Handle not having SSL certs installed.
try:
ssl_cert = self.suite_srv_files_mgr.get_auth_item(
self.suite_srv_files_mgr.FILE_BASE_SSL_CERT, reg)
except (SuiteServiceFileError, ValueError):
ssl_cert = None
cmds.append(shlex.split(scp_tmpl) + [
'-p',
self.suite_srv_files_mgr.get_contact_file(reg),
self.suite_srv_files_mgr.get_auth_item(
self.suite_srv_files_mgr.FILE_BASE_PASSPHRASE, reg),
user_at_host + ':' + r_suite_srv_dir + '/'])
if ssl_cert is not None:
cmds[-1].insert(-1, ssl_cert)
# Command to copy python library to remote host.
suite_run_py = os.path.join(
GLOBAL_CFG.get_derived_host_item(reg, 'suite run directory'),
'python')
if os.path.isdir(suite_run_py):
cmds.append(shlex.split(scp_tmpl) + [
'-pr',
suite_run_py, user_at_host + ':' + r_suite_run_dir + '/'])
# Run commands in sequence.
for cmd in cmds:
proc = Popen(cmd, stdout=PIPE, stderr=PIPE)
out, err = proc.communicate()
if proc.wait():
raise RemoteJobHostInitError(
RemoteJobHostInitError.MSG_INIT,
user_at_host, ' '.join(quote(item) for item in cmd),
proc.returncode, out, err)
self.init_host_map[(host, owner)] = should_unlink
LOG.info('Initialised %s:%s' % (user_at_host, r_suite_run_dir))
def kill_task_jobs(self, suite, itasks):
"""Kill jobs of active tasks, and hold the tasks.
If items is specified, kill active tasks matching given IDs.
"""
active_itasks = []
for itask in itasks:
if itask.state.status in TASK_STATUSES_ACTIVE:
itask.state.set_held()
active_itasks.append(itask)
else:
LOG.warning('skipping %s: task not killable' % itask.identity)
self._run_job_cmd(
self.JOBS_KILL, suite, active_itasks,
self._kill_task_jobs_callback)
def poll_task_jobs(self, suite, itasks, poll_succ=True, msg=None):
"""Poll jobs of specified tasks.
Any job that is or was submitted or running can be polled, except for
retrying tasks - which would poll (correctly) as failed. And don't poll
succeeded tasks by default.
"""
poll_me = []
pollable = [TASK_STATUS_SUBMITTED, TASK_STATUS_RUNNING,
TASK_STATUS_FAILED]
for itask in itasks:
if itask.state.status in pollable or (
itask.state.status == TASK_STATUS_SUCCEEDED and poll_succ):
poll_me.append(itask)
else:
LOG.debug("skipping %s: not pollable, "
"or skipping 'succeeded' tasks" % itask.identity)
if poll_me:
if msg is not None:
LOG.info(msg)
self._run_job_cmd(
self.JOBS_POLL, suite, poll_me, self._poll_task_jobs_callback)
def prep_submit_task_jobs(self, suite, itasks, dry_run=False):
"""Prepare task jobs for submit."""
if not itasks:
return
prepared_tasks = []
for itask in itasks:
if self._prep_submit_task_job(suite, itask, dry_run) is not None:
prepared_tasks.append(itask)
return prepared_tasks
def submit_task_jobs(self, suite, itasks, is_simulation=False):
"""Prepare and submit task jobs."""
if is_simulation:
return self._simulation_submit_task_jobs(itasks)
# Prepare tasks for job submission
prepared_tasks = self.prep_submit_task_jobs(suite, itasks)
if not prepared_tasks:
return
# Submit task jobs
auth_itasks = {}
for itask in prepared_tasks:
# The job file is now (about to be) used: reset the file write flag
# so that subsequent manual retrigger will generate a new job file.
itask.local_job_file_path = None
itask.state.reset_state(TASK_STATUS_READY)
if (itask.task_host, itask.task_owner) not in auth_itasks:
auth_itasks[(itask.task_host, itask.task_owner)] = []
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
for auth, itasks in sorted(auth_itasks.items()):
cmd = ["cylc", self.JOBS_SUBMIT]
if cylc.flags.debug:
cmd.append("--debug")
host, owner = auth
remote_mode = False
kwargs = {}
for key, value, test_func in [
('host', host, is_remote_host),
('user', owner, is_remote_user)]:
if test_func(value):
cmd.append('--%s=%s' % (key, value))
remote_mode = True
kwargs[key] = value
if remote_mode:
cmd.append('--remote-mode')
cmd.append("--")
cmd.append(GLOBAL_CFG.get_derived_host_item(
suite, 'suite job log directory', host, owner))
stdin_file_paths = []
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
if remote_mode:
stdin_file_paths.append(
self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name,
itask.submit_num, self.JOB_FILE_BASE))
job_log_dirs.append(self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
cmd += job_log_dirs
self.proc_pool.put_command(
SuiteProcContext(
self.JOBS_SUBMIT,
cmd,
stdin_file_paths=stdin_file_paths,
job_log_dirs=job_log_dirs,
**kwargs
),
self._submit_task_jobs_callback, [suite, itasks])
def unlink_hosts_contacts(self, reg):
"""Remove suite contact files from initialised hosts.
This is called on shutdown, so we don't want anything to hang.
Terminate any incomplete SSH commands after 10 seconds.
"""
# Issue all SSH commands in parallel
procs = {}
for (host, owner), should_unlink in self.init_host_map.items():
if not should_unlink:
continue
user_at_host = host
if owner:
user_at_host = owner + '@' + host
ssh_tmpl = GLOBAL_CFG.get_host_item('ssh command', host, owner)
r_suite_contact_file = os.path.join(
GLOBAL_CFG.get_derived_host_item(
reg, 'suite run directory', host, owner),
self.suite_srv_files_mgr.DIR_BASE_SRV,
self.suite_srv_files_mgr.FILE_BASE_CONTACT)
cmd = shlex.split(ssh_tmpl) + [
'-n', user_at_host, 'rm', '-f', r_suite_contact_file]
procs[user_at_host] = (cmd, Popen(cmd, stdout=PIPE, stderr=PIPE))
# Wait for commands to complete for a max of 10 seconds
timeout = time() + 10.0
while procs and time() < timeout:
for user_at_host, (cmd, proc) in procs.copy().items():
if proc.poll() is None:
continue
del procs[user_at_host]
out, err = proc.communicate()
if proc.wait():
LOG.warning(RemoteJobHostInitError(
RemoteJobHostInitError.MSG_TIDY,
user_at_host, ' '.join(quote(item) for item in cmd),
proc.returncode, out, err))
# Terminate any remaining commands
for user_at_host, (cmd, proc) in procs.items():
try:
proc.terminate()
except OSError:
pass
out, err = proc.communicate()
if proc.wait():
LOG.warning(RemoteJobHostInitError(
RemoteJobHostInitError.MSG_TIDY,
user_at_host, ' '.join(quote(item) for item in cmd),
proc.returncode, out, err))
def _check_timeout(self, itask, now):
"""Check/handle submission/execution timeouts."""
if itask.state.status == TASK_STATUS_RUNNING:
timer = itask.poll_timers.get(self.KEY_EXECUTE_TIME_LIMIT)
if timer is not None:
if not timer.is_timeout_set():
timer.next()
if not timer.is_delay_done():
# Don't poll
return False
if timer.next() is not None:
# Poll now, and more retries lined up
return True
# No more retry lined up, can issue execution timeout event
if itask.state.status in itask.timeout_timers:
timeout = itask.timeout_timers[itask.state.status]
if timeout is None or now <= timeout:
return False
itask.timeout_timers[itask.state.status] = None
if (itask.state.status == TASK_STATUS_RUNNING and
itask.summary['started_time'] is not None):
msg = 'job started %s ago, but has not finished' % (
get_seconds_as_interval_string(
timeout - itask.summary['started_time']))
event = 'execution timeout'
elif (itask.state.status == TASK_STATUS_SUBMITTED and
itask.summary['submitted_time'] is not None):
msg = 'job submitted %s ago, but has not started' % (
get_seconds_as_interval_string(
timeout - itask.summary['submitted_time']))
event = 'submission timeout'
else:
return False
LOG.warning(msg, itask=itask)
self.task_events_mgr.setup_event_handlers(itask, event, msg)
return True
def _create_job_log_path(self, suite, itask):
"""Create job log directory for a task job, etc.
Create local job directory, and NN symbolic link.
If NN => 01, remove numbered directories with submit numbers greater
than 01.
Return a string in the form "POINT/NAME/SUBMIT_NUM".
"""
job_file_dir = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num)
task_log_dir = os.path.dirname(job_file_dir)
if itask.submit_num == 1:
try:
names = os.listdir(task_log_dir)
except OSError:
pass
else:
for name in names:
if name not in ["01", self.task_events_mgr.NN]:
rmtree(
os.path.join(task_log_dir, name),
ignore_errors=True)
else:
rmtree(job_file_dir, ignore_errors=True)
mkdir_p(job_file_dir)
target = os.path.join(task_log_dir, self.task_events_mgr.NN)
source = os.path.basename(job_file_dir)
try:
prev_source = os.readlink(target)
except OSError:
prev_source = None
if prev_source == source:
return
try:
if prev_source:
os.unlink(target)
os.symlink(source, target)
except OSError as exc:
if not exc.filename:
exc.filename = target
raise exc
@staticmethod
def _get_job_scripts(itask, rtconfig):
"""Return pre-script, script, post-script for a job."""
script = rtconfig['script']
pre_script = rtconfig['pre-script']
post_script = rtconfig['post-script']
if itask.tdef.suite_polling_cfg:
# Automatic suite state polling script
comstr = "cylc suite-state " + \
" --task=" + itask.tdef.suite_polling_cfg['task'] + \
" --point=" + str(itask.point) + \
" --status=" + itask.tdef.suite_polling_cfg['status']
if cylc.flags.debug:
comstr += ' --debug'
for key, fmt in [
('user', ' --%s=%s'),
('host', ' --%s=%s'),
('interval', ' --%s=%d'),
('max-polls', ' --%s=%s'),
('run-dir', ' --%s=%s'),
('template', ' --%s=%s')]:
if rtconfig['suite state polling'][key]:
comstr += fmt % (key, rtconfig['suite state polling'][key])
comstr += " " + itask.tdef.suite_polling_cfg['suite']
script = "echo " + comstr + "\n" + comstr
return pre_script, script, post_script
def _job_cmd_out_callback(self, suite, itask, cmd_ctx, line):
"""Callback on job command STDOUT/STDERR."""
if cmd_ctx.cmd_kwargs.get("host") and cmd_ctx.cmd_kwargs.get("user"):
user_at_host = "(%(user)s@%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("host"):
user_at_host = "(%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("user"):
user_at_host = "(%(user)s@localhost) " % cmd_ctx.cmd_kwargs
else:
user_at_host = ""
try:
timestamp, _, content = line.split("|")
except ValueError:
pass
else:
line = "%s %s" % (timestamp, content)
job_activity_log = self.task_events_mgr.get_task_job_activity_log(
suite, itask.point, itask.tdef.name)
try:
with open(job_activity_log, "ab") as handle:
if not line.endswith("\n"):
line += "\n"
handle.write(user_at_host + line)
except IOError as exc:
LOG.warning("%s: write failed\n%s" % (job_activity_log, exc))
LOG.warning(user_at_host + line, itask=itask)
def _kill_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when kill tasks command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._kill_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _kill_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _kill_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_KILL, None)
ctx.out = line
try:
ctx.timestamp, _, ctx.ret_code = line.split("|", 2)
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
log_lvl = INFO
log_msg = 'killed'
if ctx.ret_code: # non-zero exit status
log_lvl = WARNING
log_msg = 'kill failed'
itask.state.kill_failed = True
elif itask.state.status == TASK_STATUS_SUBMITTED:
self.task_events_mgr.process_message(
itask, CRITICAL, "%s at %s" % (
self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp),
self.poll_task_jobs)
cylc.flags.iflag = True
elif itask.state.status == TASK_STATUS_RUNNING:
self.task_events_mgr.process_message(
itask, CRITICAL, TASK_OUTPUT_FAILED, self.poll_task_jobs)
cylc.flags.iflag = True
else:
log_lvl = WARNING
log_msg = (
'ignoring job kill result, unexpected task state: %s' %
itask.state.status)
itask.summary['latest_message'] = log_msg
LOG.log(log_lvl, "[%s] -job(%02d) %s" % (
itask.identity, itask.submit_num, log_msg))
@staticmethod
def _manip_task_jobs_callback(
ctx, suite, itasks, summary_callback, more_callbacks=None):
"""Callback when submit/poll/kill tasks command exits."""
if ctx.ret_code:
LOG.error(ctx)
else:
LOG.debug(ctx)
tasks = {}
# Note for "kill": It is possible for a job to trigger its trap and
# report back to the suite back this logic is called. If so, the task
# will no longer be TASK_STATUS_SUBMITTED or TASK_STATUS_RUNNING, and
# its output line will be ignored here.
for itask in itasks:
if itask.point is not None and itask.submit_num:
submit_num = "%02d" % (itask.submit_num)
tasks[(str(itask.point), itask.tdef.name, submit_num)] = itask
handlers = [(BatchSysManager.OUT_PREFIX_SUMMARY, summary_callback)]
if more_callbacks:
for prefix, callback in more_callbacks.items():
handlers.append((prefix, callback))
out = ctx.out
if not out:
out = ""
# Something is very wrong here
# Fallback to use "job_log_dirs" list to report the problem
job_log_dirs = ctx.cmd_kwargs.get("job_log_dirs", [])
for job_log_dir in job_log_dirs:
point, name, submit_num = job_log_dir.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
out += (BatchSysManager.OUT_PREFIX_SUMMARY +
"|".join([ctx.timestamp, job_log_dir, "1"]) + "\n")
for line in out.splitlines(True):
for prefix, callback in handlers:
if line.startswith(prefix):
line = line[len(prefix):].strip()
try:
path = line.split("|", 2)[1] # timestamp, path, status
point, name, submit_num = path.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
callback(suite, itask, ctx, line)
except (KeyError, ValueError):
if cylc.flags.debug:
LOG.warning('Unhandled %s output: %s' % (
ctx.cmd_key, line))
LOG.warning(traceback.format_exc())
def _poll_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when poll tasks command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._poll_task_job_callback,
{BatchSysManager.OUT_PREFIX_MESSAGE:
self._poll_task_job_message_callback})
def _poll_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
ctx.ret_code = 0
items = line.split("|")
# See cylc.batch_sys_manager.JobPollContext
try:
(
batch_sys_exit_polled, run_status, run_signal,
time_submit_exit, time_run, time_run_exit
) = items[4:10]
except IndexError:
itask.summary['latest_message'] = 'poll failed'
cylc.flags.iflag = True
ctx.cmd = cmd_ctx.cmd # print original command on failure
return
finally:
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
if run_status == "1" and run_signal in ["ERR", "EXIT"]:
# Failed normally
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, self.poll_task_jobs,
time_run_exit)
elif run_status == "1" and batch_sys_exit_polled == "1":
# Failed by a signal, and no longer in batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, self.poll_task_jobs,
time_run_exit)
self.task_events_mgr.process_message(
itask, INFO, TaskMessage.FAIL_MESSAGE_PREFIX + run_signal,
self.poll_task_jobs, time_run_exit)
elif run_status == "1":
# The job has terminated, but is still managed by batch system.
# Some batch system may restart a job in this state, so don't
# mark as failed yet.
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_STARTED, self.poll_task_jobs,
time_run)
elif run_status == "0":
# The job succeeded
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_SUCCEEDED, self.poll_task_jobs,
time_run_exit)
elif time_run and batch_sys_exit_polled == "1":
# The job has terminated without executing the error trap
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, self.poll_task_jobs, "")
elif time_run:
# The job has started, and is still managed by batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_STARTED, self.poll_task_jobs,
time_run)
elif batch_sys_exit_polled == "1":
# The job never ran, and no longer in batch system
self.task_events_mgr.process_message(
itask, INFO, self.task_events_mgr.EVENT_SUBMIT_FAILED,
self.poll_task_jobs, time_submit_exit)
else:
# The job never ran, and is in batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_STATUS_SUBMITTED, self.poll_task_jobs,
time_submit_exit)
def _poll_task_job_message_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on message of one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
try:
event_time, priority, message = line.split("|")[2:5]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = 0
self.task_events_mgr.process_message(
itask, priority, message, self.poll_task_jobs, event_time)
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
def _run_job_cmd(self, cmd_key, suite, itasks, callback):
"""Run job commands, e.g. poll, kill, etc.
Group itasks with their user@host.
Put a job command for each user@host to the multiprocess pool.
"""
if not itasks:
return
auth_itasks = {}
for itask in itasks:
if (itask.task_host, itask.task_owner) not in auth_itasks:
auth_itasks[(itask.task_host, itask.task_owner)] = []
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
for (host, owner), itasks in sorted(auth_itasks.items()):
cmd = ["cylc", cmd_key]
if cylc.flags.debug:
cmd.append("--debug")
if is_remote_host(host):
cmd.append("--host=%s" % (host))
if is_remote_user(owner):
cmd.append("--user=%s" % (owner))
cmd.append("--")
cmd.append(GLOBAL_CFG.get_derived_host_item(
suite, "suite job log directory", host, owner))
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
job_log_dirs.append(self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
cmd += job_log_dirs
self.proc_pool.put_command(
SuiteProcContext(cmd_key, cmd), callback, [suite, itasks])
@staticmethod
def _set_retry_timers(itask, rtconfig=None):
"""Set try number and retry delays."""
if rtconfig is None:
rtconfig = itask.tdef.rtconfig
try:
no_retry = (
rtconfig[itask.tdef.run_mode + ' mode']['disable retries'])
except KeyError:
no_retry = False
if not no_retry:
for key, cfg_key in [
(TASK_STATUS_SUBMIT_RETRYING, 'submission retry delays'),
(TASK_STATUS_RETRYING, 'execution retry delays')]:
delays = rtconfig['job'][cfg_key]
try:
itask.try_timers[key].set_delays(delays)
except KeyError:
itask.try_timers[key] = TaskActionTimer(delays=delays)
def _simulation_submit_task_jobs(self, itasks):
"""Simulation mode task jobs submission."""
for itask in itasks:
self._set_retry_timers(itask)
itask.task_host = 'SIMULATION'
itask.task_owner = 'SIMULATION'
itask.summary['batch_sys_name'] = 'SIMULATION'
itask.summary[self.KEY_EXECUTE_TIME_LIMIT] = (
itask.tdef.rtconfig['job']['simulated run length'])
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_SUBMITTED, self.poll_task_jobs)
def _submit_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when submit task jobs command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._submit_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _submit_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _submit_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_SUBMIT, None)
ctx.out = line
items = line.split("|")
try:
ctx.timestamp, _, ctx.ret_code = items[0:3]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
if ctx.ret_code == SuiteProcPool.JOB_SKIPPED_FLAG:
return
try:
itask.summary['submit_method_id'] = items[3]
except IndexError:
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] == "None":
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] and ctx.ret_code == 0:
self.task_events_mgr.process_message(
itask, INFO, '%s at %s' % (
TASK_OUTPUT_SUBMITTED, ctx.timestamp),
self.poll_task_jobs)
else:
self.task_events_mgr.process_message(
itask, CRITICAL, '%s at %s' % (
self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp),
self.poll_task_jobs)
def _prep_submit_task_job(self, suite, itask, dry_run):
"""Prepare a task job submission.
Return itask on a good preparation.
"""
if itask.local_job_file_path and not dry_run:
return itask
try:
job_conf = self._prep_submit_task_job_impl(suite, itask)
local_job_file_path = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num,
self.JOB_FILE_BASE)
self.job_file_writer.write(local_job_file_path, job_conf)
except Exception, exc:
# Could be a bad command template.
LOG.error(traceback.format_exc())
self.task_events_mgr.log_task_job_activity(
SuiteProcContext(
self.JOBS_SUBMIT,
'(prepare job file)', err=exc, ret_code=1),
suite, itask.point, itask.tdef.name)
if not dry_run:
self.task_events_mgr.process_message(
itask, CRITICAL, self.task_events_mgr.EVENT_SUBMIT_FAILED,
self.poll_task_jobs)
return
itask.local_job_file_path = local_job_file_path
if dry_run:
# This will be shown next to submit num in gcylc:
itask.summary['latest_message'] = 'job file written (edit/dry-run)'
LOG.debug("[%s] -%s" % (
itask.identity, itask.summary['latest_message']))
# Return value used by "cylc submit" and "cylc jobscript":
return itask
class TaskJobManager(object):
"""Manage task job submit, poll and kill.
This class provides logic to:
* Submit task jobs.
* Poll task jobs.
* Kill task jobs.
* Set up the directory structure on job hosts.
* Install suite communicate client files on job hosts.
* Remove suite contact files on job hosts.
"""
JOB_FILE_BASE = BatchSysManager.JOB_FILE_BASE
JOBS_KILL = 'jobs-kill'
JOBS_POLL = 'jobs-poll'
JOBS_SUBMIT = SuiteProcPool.JOBS_SUBMIT
REMOTE_SELECT_MSG = 'waiting for remote host selection'
REMOTE_INIT_MSG = 'remote host initialising'
KEY_EXECUTE_TIME_LIMIT = 'execution_time_limit'
def __init__(self, suite, proc_pool, suite_db_mgr, suite_srv_files_mgr):
self.suite = suite
self.proc_pool = proc_pool
self.suite_db_mgr = suite_db_mgr
self.task_events_mgr = TaskEventsManager(suite, proc_pool,
suite_db_mgr)
self.job_file_writer = JobFileWriter()
self.suite_srv_files_mgr = suite_srv_files_mgr
self.task_remote_mgr = TaskRemoteMgr(suite, proc_pool,
suite_srv_files_mgr)
def check_task_jobs(self, suite, task_pool):
"""Check submission and execution timeout and polling timers.
Poll tasks that have timed out and/or have reached next polling time.
"""
now = time()
poll_tasks = set()
for itask in task_pool.get_tasks():
if (self._check_timeout(itask, now)
or self.task_events_mgr.set_poll_time(itask, now)):
poll_tasks.add(itask)
if poll_tasks:
self.poll_task_jobs(suite, poll_tasks)
def kill_task_jobs(self, suite, itasks):
"""Kill jobs of active tasks, and hold the tasks.
If items is specified, kill active tasks matching given IDs.
"""
active_itasks = []
for itask in itasks:
if itask.state.status in TASK_STATUSES_ACTIVE:
itask.state.set_held()
active_itasks.append(itask)
else:
LOG.warning('skipping %s: task not killable' % itask.identity)
self._run_job_cmd(self.JOBS_KILL, suite, active_itasks,
self._kill_task_jobs_callback)
def poll_task_jobs(self, suite, itasks, poll_succ=True, msg=None):
"""Poll jobs of specified tasks.
Any job that is or was submitted or running can be polled, except for
retrying tasks - which would poll (correctly) as failed. And don't poll
succeeded tasks by default.
This method uses _poll_task_jobs_callback() and
_manip_task_jobs_callback() as help/callback methods.
_poll_task_job_callback() executes one specific job.
"""
poll_me = []
pollable = [
TASK_STATUS_SUBMITTED, TASK_STATUS_RUNNING, TASK_STATUS_FAILED
]
for itask in itasks:
if itask.state.status in pollable or (
itask.state.status == TASK_STATUS_SUCCEEDED and poll_succ):
poll_me.append(itask)
else:
LOG.debug("skipping %s: not pollable, "
"or skipping 'succeeded' tasks" % itask.identity)
if poll_me:
if msg is not None:
LOG.info(msg)
self._run_job_cmd(self.JOBS_POLL, suite, poll_me,
self._poll_task_jobs_callback)
def prep_submit_task_jobs(self, suite, itasks, dry_run=False):
"""Prepare task jobs for submit.
Prepare tasks where possible. Ignore tasks that are waiting for host
select command to complete. Bad host select command or error writing to
a job file will cause a bad task - leading to submission failure.
Return [list, list]: list of good tasks, list of bad tasks
"""
prepared_tasks = []
bad_tasks = []
for itask in itasks:
prep_task = self._prep_submit_task_job(suite, itask, dry_run)
if prep_task:
prepared_tasks.append(itask)
elif prep_task is False:
bad_tasks.append(itask)
return [prepared_tasks, bad_tasks]
def submit_task_jobs(self, suite, itasks, is_simulation=False):
"""Prepare and submit task jobs.
Submit tasks where possible. Ignore tasks that are waiting for host
select command to complete, or tasks that are waiting for remote
initialisation. Bad host select command, error writing to a job file or
bad remote initialisation will cause a bad task - leading to submission
failure.
This method uses prep_submit_task_job() as helper.
Return (list): list of tasks that attempted submission
"""
if is_simulation:
return self._simulation_submit_task_jobs(itasks)
# Prepare tasks for job submission
prepared_tasks, bad_tasks = self.prep_submit_task_jobs(suite, itasks)
if not prepared_tasks:
return bad_tasks
# Reset consumed host selection results
self.task_remote_mgr.remote_host_select_reset()
# Group task jobs by (host, owner)
auth_itasks = {} # {(host, owner): [itask, ...], ...}
for itask in prepared_tasks:
auth_itasks.setdefault((itask.task_host, itask.task_owner), [])
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
# Submit task jobs for each (host, owner) group
done_tasks = bad_tasks
for (host, owner), itasks in sorted(auth_itasks.items()):
is_init = self.task_remote_mgr.remote_init(host, owner)
if is_init is None:
# Remote is waiting to be initialised
for itask in itasks:
itask.summary['latest_message'] = self.REMOTE_INIT_MSG
continue
# Persist
if owner:
owner_at_host = owner + '@' + host
else:
owner_at_host = host
now_str = get_current_time_string()
done_tasks.extend(itasks)
for itask in itasks:
# Log and perist
LOG.info('submit-num=%d, owner@host=%s' %
(itask.submit_num, owner_at_host),
itask=itask)
self.suite_db_mgr.put_insert_task_jobs(
itask, {
'is_manual_submit': itask.is_manual_submit,
'try_num': itask.get_try_num(),
'time_submit': now_str,
'user_at_host': owner_at_host,
'batch_sys_name': itask.summary['batch_sys_name'],
})
itask.is_manual_submit = False
if is_init == REMOTE_INIT_FAILED:
# Remote has failed to initialise
# Set submit-failed for all affected tasks
for itask in itasks:
itask.local_job_file_path = None # reset for retry
self.task_events_mgr.log_task_job_activity(
SuiteProcContext(self.JOBS_SUBMIT,
'(init %s)' % owner_at_host,
err=REMOTE_INIT_FAILED,
ret_code=1), suite, itask.point,
itask.tdef.name)
self.task_events_mgr.process_message(
itask, CRITICAL,
self.task_events_mgr.EVENT_SUBMIT_FAILED,
self.poll_task_jobs)
continue
# Build the "cylc jobs-submit" command
cmd = ['cylc', self.JOBS_SUBMIT]
if cylc.flags.debug:
cmd.append('--debug')
remote_mode = False
kwargs = {}
for key, value, test_func in [('host', host, is_remote_host),
('user', owner, is_remote_user)]:
if test_func(value):
cmd.append('--%s=%s' % (key, value))
remote_mode = True
kwargs[key] = value
if remote_mode:
cmd.append('--remote-mode')
cmd.append('--')
cmd.append(
GLOBAL_CFG.get_derived_host_item(suite,
'suite job log directory',
host, owner))
stdin_file_paths = []
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
if remote_mode:
stdin_file_paths.append(
self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name,
itask.submit_num, self.JOB_FILE_BASE))
job_log_dirs.append(
self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
# The job file is now (about to be) used: reset the file write
# flag so that subsequent manual retrigger will generate a new
# job file.
itask.local_job_file_path = None
itask.state.reset_state(TASK_STATUS_READY)
if itask.state.outputs.has_custom_triggers():
self.suite_db_mgr.put_update_task_outputs(itask)
cmd += job_log_dirs
self.proc_pool.put_command(
SuiteProcContext(self.JOBS_SUBMIT,
cmd,
stdin_file_paths=stdin_file_paths,
job_log_dirs=job_log_dirs,
**kwargs), self._submit_task_jobs_callback,
[suite, itasks])
return done_tasks
def _check_timeout(self, itask, now):
"""Check/handle submission/execution timeouts."""
if itask.state.status == TASK_STATUS_RUNNING:
timer = itask.poll_timers.get(self.KEY_EXECUTE_TIME_LIMIT)
if timer is not None:
if not timer.is_timeout_set():
timer.next()
if not timer.is_delay_done():
# Don't poll
return False
if timer.next() is not None:
# Poll now, and more retries lined up
return True
# No more retry lined up, can issue execution timeout event
if itask.state.status in itask.timeout_timers:
timeout = itask.timeout_timers[itask.state.status]
if timeout is None or now <= timeout:
return False
itask.timeout_timers[itask.state.status] = None
if (itask.state.status == TASK_STATUS_RUNNING
and itask.summary['started_time'] is not None):
msg = 'job started %s ago, but has not finished' % (
get_seconds_as_interval_string(
timeout - itask.summary['started_time']))
event = 'execution timeout'
elif (itask.state.status == TASK_STATUS_SUBMITTED
and itask.summary['submitted_time'] is not None):
msg = 'job submitted %s ago, but has not started' % (
get_seconds_as_interval_string(
timeout - itask.summary['submitted_time']))
event = 'submission timeout'
else:
return False
LOG.warning(msg, itask=itask)
self.task_events_mgr.setup_event_handlers(itask, event, msg)
return True
def _create_job_log_path(self, suite, itask):
"""Create job log directory for a task job, etc.
Create local job directory, and NN symbolic link.
If NN => 01, remove numbered directories with submit numbers greater
than 01.
Return a string in the form "POINT/NAME/SUBMIT_NUM".
"""
job_file_dir = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num)
task_log_dir = os.path.dirname(job_file_dir)
if itask.submit_num == 1:
try:
names = os.listdir(task_log_dir)
except OSError:
pass
else:
for name in names:
if name not in ["01", self.task_events_mgr.NN]:
rmtree(os.path.join(task_log_dir, name),
ignore_errors=True)
else:
rmtree(job_file_dir, ignore_errors=True)
mkdir_p(job_file_dir)
target = os.path.join(task_log_dir, self.task_events_mgr.NN)
source = os.path.basename(job_file_dir)
try:
prev_source = os.readlink(target)
except OSError:
prev_source = None
if prev_source == source:
return
try:
if prev_source:
os.unlink(target)
os.symlink(source, target)
except OSError as exc:
if not exc.filename:
exc.filename = target
raise exc
@staticmethod
def _get_job_scripts(itask, rtconfig):
"""Return pre-script, script, post-script for a job."""
script = rtconfig['script']
pre_script = rtconfig['pre-script']
post_script = rtconfig['post-script']
if itask.tdef.suite_polling_cfg:
# Automatic suite state polling script
comstr = "cylc suite-state " + \
" --task=" + itask.tdef.suite_polling_cfg['task'] + \
" --point=" + str(itask.point) + \
" --status=" + itask.tdef.suite_polling_cfg['status']
if cylc.flags.debug:
comstr += ' --debug'
for key, fmt in [
('user', ' --%s=%s'), ('host', ' --%s=%s'),
('interval', ' --%s=%d'), ('max-polls', ' --%s=%s'),
('run-dir', ' --%s=%s'), ('template', ' --%s=%s')
]:
if rtconfig['suite state polling'][key]:
comstr += fmt % (key, rtconfig['suite state polling'][key])
comstr += " " + itask.tdef.suite_polling_cfg['suite']
script = "echo " + comstr + "\n" + comstr
return pre_script, script, post_script
def _job_cmd_out_callback(self, suite, itask, cmd_ctx, line):
"""Callback on job command STDOUT/STDERR."""
if cmd_ctx.cmd_kwargs.get("host") and cmd_ctx.cmd_kwargs.get("user"):
owner_at_host = "(%(user)s@%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("host"):
owner_at_host = "(%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("user"):
owner_at_host = "(%(user)s@localhost) " % cmd_ctx.cmd_kwargs
else:
owner_at_host = ""
try:
timestamp, _, content = line.split("|")
except ValueError:
pass
else:
line = "%s %s" % (timestamp, content)
job_activity_log = self.task_events_mgr.get_task_job_activity_log(
suite, itask.point, itask.tdef.name)
try:
with open(job_activity_log, "ab") as handle:
if not line.endswith("\n"):
line += "\n"
handle.write(owner_at_host + line)
except IOError as exc:
LOG.warning("%s: write failed\n%s" % (job_activity_log, exc))
LOG.warning(owner_at_host + line, itask=itask)
def _kill_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when kill tasks command exits."""
self._manip_task_jobs_callback(
ctx, suite, itasks, self._kill_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _kill_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _kill_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_KILL, None)
ctx.out = line
try:
ctx.timestamp, _, ctx.ret_code = line.split("|", 2)
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(ctx, suite, itask.point,
itask.tdef.name)
log_lvl = INFO
log_msg = 'killed'
if ctx.ret_code: # non-zero exit status
log_lvl = WARNING
log_msg = 'kill failed'
itask.state.kill_failed = True
elif itask.state.status == TASK_STATUS_SUBMITTED:
self.task_events_mgr.process_message(
itask, CRITICAL, "%s at %s" %
(self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp),
self.poll_task_jobs)
cylc.flags.iflag = True
elif itask.state.status == TASK_STATUS_RUNNING:
self.task_events_mgr.process_message(itask, CRITICAL,
TASK_OUTPUT_FAILED,
self.poll_task_jobs)
cylc.flags.iflag = True
else:
log_lvl = WARNING
log_msg = ('ignoring job kill result, unexpected task state: %s' %
itask.state.status)
itask.summary['latest_message'] = log_msg
LOG.log(
log_lvl,
"[%s] -job(%02d) %s" % (itask.identity, itask.submit_num, log_msg))
@staticmethod
def _manip_task_jobs_callback(ctx,
suite,
itasks,
summary_callback,
more_callbacks=None):
"""Callback when submit/poll/kill tasks command exits."""
if ctx.ret_code:
LOG.error(ctx)
else:
LOG.debug(ctx)
tasks = {}
# Note for "kill": It is possible for a job to trigger its trap and
# report back to the suite back this logic is called. If so, the task
# will no longer be TASK_STATUS_SUBMITTED or TASK_STATUS_RUNNING, and
# its output line will be ignored here.
for itask in itasks:
if itask.point is not None and itask.submit_num:
submit_num = "%02d" % (itask.submit_num)
tasks[(str(itask.point), itask.tdef.name, submit_num)] = itask
handlers = [(BatchSysManager.OUT_PREFIX_SUMMARY, summary_callback)]
if more_callbacks:
for prefix, callback in more_callbacks.items():
handlers.append((prefix, callback))
out = ctx.out
if not out:
out = ""
# Something is very wrong here
# Fallback to use "job_log_dirs" list to report the problem
job_log_dirs = ctx.cmd_kwargs.get("job_log_dirs", [])
for job_log_dir in job_log_dirs:
point, name, submit_num = job_log_dir.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
out += (BatchSysManager.OUT_PREFIX_SUMMARY +
"|".join([ctx.timestamp, job_log_dir, "1"]) + "\n")
for line in out.splitlines(True):
for prefix, callback in handlers:
if line.startswith(prefix):
line = line[len(prefix):].strip()
try:
path = line.split("|", 2)[1] # timestamp, path, status
point, name, submit_num = path.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
callback(suite, itask, ctx, line)
except (KeyError, ValueError):
if cylc.flags.debug:
LOG.warning('Unhandled %s output: %s' %
(ctx.cmd_key, line))
LOG.warning(traceback.format_exc())
def _poll_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when poll tasks command exits."""
self._manip_task_jobs_callback(
ctx, suite, itasks, self._poll_task_job_callback, {
BatchSysManager.OUT_PREFIX_MESSAGE:
self._poll_task_job_message_callback
})
def _poll_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
ctx.ret_code = 0
items = line.split("|")
# See cylc.batch_sys_manager.JobPollContext
try:
(batch_sys_exit_polled, run_status, run_signal, time_submit_exit,
time_run, time_run_exit) = items[4:10]
except IndexError:
itask.summary['latest_message'] = 'poll failed'
cylc.flags.iflag = True
ctx.cmd = cmd_ctx.cmd # print original command on failure
return
finally:
self.task_events_mgr.log_task_job_activity(ctx, suite, itask.point,
itask.tdef.name)
if run_status == "1" and run_signal in ["ERR", "EXIT"]:
# Failed normally
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_FAILED,
self.poll_task_jobs,
time_run_exit)
elif run_status == "1" and batch_sys_exit_polled == "1":
# Failed by a signal, and no longer in batch system
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_FAILED,
self.poll_task_jobs,
time_run_exit)
self.task_events_mgr.process_message(
itask, INFO, TaskMessage.FAIL_MESSAGE_PREFIX + run_signal,
self.poll_task_jobs, time_run_exit)
elif run_status == "1":
# The job has terminated, but is still managed by batch system.
# Some batch system may restart a job in this state, so don't
# mark as failed yet.
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_STARTED,
self.poll_task_jobs, time_run)
elif run_status == "0":
# The job succeeded
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_SUCCEEDED,
self.poll_task_jobs,
time_run_exit)
elif time_run and batch_sys_exit_polled == "1":
# The job has terminated without executing the error trap
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_FAILED,
self.poll_task_jobs, "")
elif time_run:
# The job has started, and is still managed by batch system
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_STARTED,
self.poll_task_jobs, time_run)
elif batch_sys_exit_polled == "1":
# The job never ran, and no longer in batch system
self.task_events_mgr.process_message(
itask, INFO, self.task_events_mgr.EVENT_SUBMIT_FAILED,
self.poll_task_jobs, time_submit_exit)
else:
# The job never ran, and is in batch system
self.task_events_mgr.process_message(itask, INFO,
TASK_STATUS_SUBMITTED,
self.poll_task_jobs,
time_submit_exit)
def _poll_task_job_message_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on message of one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
try:
event_time, severity, message = line.split("|")[2:5]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = 0
self.task_events_mgr.process_message(itask, severity, message,
self.poll_task_jobs,
event_time)
self.task_events_mgr.log_task_job_activity(ctx, suite, itask.point,
itask.tdef.name)
def _run_job_cmd(self, cmd_key, suite, itasks, callback):
"""Run job commands, e.g. poll, kill, etc.
Group itasks with their user@host.
Put a job command for each user@host to the multiprocess pool.
"""
if not itasks:
return
auth_itasks = {}
for itask in itasks:
if (itask.task_host, itask.task_owner) not in auth_itasks:
auth_itasks[(itask.task_host, itask.task_owner)] = []
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
for (host, owner), itasks in sorted(auth_itasks.items()):
cmd = ["cylc", cmd_key]
if cylc.flags.debug:
cmd.append("--debug")
if is_remote_host(host):
cmd.append("--host=%s" % (host))
if is_remote_user(owner):
cmd.append("--user=%s" % (owner))
cmd.append("--")
cmd.append(
GLOBAL_CFG.get_derived_host_item(suite,
"suite job log directory",
host, owner))
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
job_log_dirs.append(
self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
cmd += job_log_dirs
self.proc_pool.put_command(SuiteProcContext(cmd_key, cmd),
callback, [suite, itasks])
@staticmethod
def _set_retry_timers(itask, rtconfig=None):
"""Set try number and retry delays."""
if rtconfig is None:
rtconfig = itask.tdef.rtconfig
try:
no_retry = (rtconfig[itask.tdef.run_mode +
' mode']['disable retries'])
except KeyError:
no_retry = False
if not no_retry:
for key, cfg_key in [
(TASK_STATUS_SUBMIT_RETRYING, 'submission retry delays'),
(TASK_STATUS_RETRYING, 'execution retry delays')
]:
delays = rtconfig['job'][cfg_key]
try:
itask.try_timers[key].set_delays(delays)
except KeyError:
itask.try_timers[key] = TaskActionTimer(delays=delays)
def _simulation_submit_task_jobs(self, itasks):
"""Simulation mode task jobs submission."""
for itask in itasks:
self._set_retry_timers(itask)
itask.task_host = 'SIMULATION'
itask.task_owner = 'SIMULATION'
itask.summary['batch_sys_name'] = 'SIMULATION'
itask.summary[self.KEY_EXECUTE_TIME_LIMIT] = (
itask.tdef.rtconfig['job']['simulated run length'])
self.task_events_mgr.process_message(itask, INFO,
TASK_OUTPUT_SUBMITTED,
self.poll_task_jobs)
return itasks
def _submit_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when submit task jobs command exits."""
self._manip_task_jobs_callback(
ctx, suite, itasks, self._submit_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _submit_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _submit_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_SUBMIT, None)
ctx.out = line
items = line.split("|")
try:
ctx.timestamp, _, ctx.ret_code = items[0:3]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(ctx, suite, itask.point,
itask.tdef.name)
if ctx.ret_code == SuiteProcPool.JOB_SKIPPED_FLAG:
return
try:
itask.summary['submit_method_id'] = items[3]
except IndexError:
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] == "None":
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] and ctx.ret_code == 0:
self.task_events_mgr.process_message(
itask, INFO,
'%s at %s' % (TASK_OUTPUT_SUBMITTED, ctx.timestamp),
self.poll_task_jobs)
else:
self.task_events_mgr.process_message(
itask, CRITICAL, '%s at %s' %
(self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp),
self.poll_task_jobs)
def _prep_submit_task_job(self, suite, itask, dry_run):
"""Prepare a task job submission.
Return itask on a good preparation.
"""
if itask.local_job_file_path and not dry_run:
return itask
# Handle broadcasts
overrides = self.task_events_mgr.broadcast_mgr.get_broadcast(
itask.identity)
if overrides:
rtconfig = pdeepcopy(itask.tdef.rtconfig)
poverride(rtconfig, overrides, prepend=True)
else:
rtconfig = itask.tdef.rtconfig
# Determine task host settings now, just before job submission,
# because dynamic host selection may be used.
try:
task_host = self.task_remote_mgr.remote_host_select(
rtconfig['remote']['host'])
except TaskRemoteMgmtError as exc:
# Submit number not yet incremented
itask.submit_num += 1
itask.summary['submit_num'] = itask.submit_num
self._prep_submit_task_job_error(suite, itask, dry_run,
'(remote host select)', exc)
return False
else:
if task_host is None: # host select not ready
itask.summary['latest_message'] = self.REMOTE_SELECT_MSG
return
itask.task_host = task_host
try:
job_conf = self._prep_submit_task_job_impl(suite, itask, rtconfig)
local_job_file_path = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num,
self.JOB_FILE_BASE)
self.job_file_writer.write(local_job_file_path, job_conf)
except StandardError as exc:
# Could be a bad command template, IOError, etc
self._prep_submit_task_job_error(suite, itask, dry_run,
'(prepare job file)', exc)
return False
itask.local_job_file_path = local_job_file_path
if dry_run:
# This will be shown next to submit num in gcylc:
itask.summary['latest_message'] = 'job file written (edit/dry-run)'
LOG.debug(itask.summary['latest_message'], itask=itask)
# Return value used by "cylc submit" and "cylc jobscript":
return itask
def _prep_submit_task_job_error(self, suite, itask, dry_run, action, exc):
"""Helper for self._prep_submit_task_job. On error."""
LOG.error(traceback.format_exc())
self.task_events_mgr.log_task_job_activity(
SuiteProcContext(self.JOBS_SUBMIT, action, err=exc, ret_code=1),
suite, itask.point, itask.tdef.name)
if not dry_run:
# Perist
self.suite_db_mgr.put_insert_task_jobs(
itask, {
'is_manual_submit': itask.is_manual_submit,
'try_num': itask.get_try_num(),
'time_submit': get_current_time_string(),
'batch_sys_name': itask.summary.get('batch_sys_name'),
})
itask.is_manual_submit = False
self.task_events_mgr.process_message(
itask, CRITICAL, self.task_events_mgr.EVENT_SUBMIT_FAILED,
self.poll_task_jobs)
def _prep_submit_task_job_impl(self, suite, itask, rtconfig):
"""Helper for self._prep_submit_task_job."""
# Submit number
itask.submit_num += 1
itask.summary['submit_num'] = itask.submit_num
itask.task_owner = rtconfig['remote']['owner']
if itask.task_owner:
owner_at_host = itask.task_owner + "@" + itask.task_host
else:
owner_at_host = itask.task_host
itask.summary['host'] = owner_at_host
itask.summary['job_hosts'][itask.submit_num] = owner_at_host
itask.summary['batch_sys_name'] = rtconfig['job']['batch system']
for name in rtconfig['extra log files']:
itask.summary['logfiles'].append(expandvars(name))
try:
batch_sys_conf = self.task_events_mgr.get_host_conf(
itask, 'batch systems')[rtconfig['job']['batch system']]
except (TypeError, KeyError):
batch_sys_conf = {}
try:
itask.summary[self.KEY_EXECUTE_TIME_LIMIT] = float(
rtconfig['job']['execution time limit'])
except TypeError:
pass
if itask.summary[self.KEY_EXECUTE_TIME_LIMIT]:
# Default = 1, 2 and 7 minutes intervals, roughly 1, 3 and 10
# minutes after time limit exceeded
itask.poll_timers[self.KEY_EXECUTE_TIME_LIMIT] = (TaskActionTimer(
delays=batch_sys_conf.get(
'execution time limit polling intervals', [60, 120, 420])))
for label, key in [
('submission polling intervals', TASK_STATUS_SUBMITTED),
('execution polling intervals', TASK_STATUS_RUNNING)
]:
if key in itask.poll_timers:
itask.poll_timers[key].reset()
else:
values = self.task_events_mgr.get_host_conf(itask,
label,
skey='job')
if values:
itask.poll_timers[key] = TaskActionTimer(delays=values)
scripts = self._get_job_scripts(itask, rtconfig)
# Retry delays, needed for the try_num
self._set_retry_timers(itask, rtconfig)
# Location of job file, etc
self._create_job_log_path(suite, itask)
job_d = self.task_events_mgr.get_task_job_id(itask.point,
itask.tdef.name,
itask.submit_num)
job_file_path = os.path.join(
GLOBAL_CFG.get_derived_host_item(suite, "suite job log directory",
itask.task_host,
itask.task_owner), job_d,
self.JOB_FILE_BASE)
return {
'batch_system_name':
rtconfig['job']['batch system'],
'batch_submit_command_template':
(rtconfig['job']['batch submit command template']),
'batch_system_conf':
batch_sys_conf,
'directives':
rtconfig['directives'],
'environment':
rtconfig['environment'],
'execution_time_limit':
itask.summary[self.KEY_EXECUTE_TIME_LIMIT],
'env-script':
rtconfig['env-script'],
'err-script':
rtconfig['err-script'],
'host':
itask.task_host,
'init-script':
rtconfig['init-script'],
'job_file_path':
job_file_path,
'job_d':
job_d,
'namespace_hierarchy':
itask.tdef.namespace_hierarchy,
'owner':
itask.task_owner,
'param_env_tmpl':
rtconfig['parameter environment templates'],
'param_var':
itask.tdef.param_var,
'post-script':
scripts[2],
'pre-script':
scripts[0],
'remote_suite_d':
rtconfig['remote']['suite definition directory'],
'script':
scripts[1],
'shell':
rtconfig['job']['shell'],
'submit_num':
itask.submit_num,
'suite_name':
suite,
'task_id':
itask.identity,
'try_num':
itask.get_try_num(),
'work_d':
rtconfig['work sub-directory'],
}
class TaskJobManager(object):
"""Manage task job submit, poll and kill.
This class provides logic to:
* Submit task jobs.
* Poll task jobs.
* Kill task jobs.
* Set up the directory structure on job hosts.
* Install suite communicate client files on job hosts.
* Remove suite contact files on job hosts.
"""
JOB_FILE_BASE = BatchSysManager.JOB_FILE_BASE
JOBS_KILL = "jobs-kill"
JOBS_POLL = "jobs-poll"
JOBS_SUBMIT = SuiteProcPool.JOBS_SUBMIT
KEY_EXECUTE_TIME_LIMIT = "execution_time_limit"
def __init__(
self, suite, proc_pool, suite_db_mgr, suite_srv_files_mgr):
self.suite = suite
self.proc_pool = proc_pool
self.suite_db_mgr = suite_db_mgr
self.task_events_mgr = TaskEventsManager(
suite, proc_pool, suite_db_mgr)
self.job_file_writer = JobFileWriter()
self.suite_srv_files_mgr = suite_srv_files_mgr
self.init_host_map = {} # {(user, host): should_unlink, ...}
self.single_task_mode = False
def check_task_jobs(self, suite, task_pool):
"""Check submission and execution timeout and polling timers.
Poll tasks that have timed out and/or have reached next polling time.
"""
now = time()
poll_tasks = set()
for itask in task_pool.get_tasks():
if (self._check_timeout(itask, now) or
self.task_events_mgr.set_poll_time(itask, now)):
poll_tasks.add(itask)
self.poll_task_jobs(suite, poll_tasks)
def init_host(self, reg, host, owner):
"""Initialise suite run dir on a user@host.
Create SUITE_RUN_DIR/log/job/ if necessary.
Install suite contact environment file.
Install suite python modules.
Raise RemoteJobHostInitError if initialisation cannot complete.
"""
if host is None:
host = 'localhost'
if ((host, owner) in [('localhost', None), ('localhost', USER)] or
(host, owner) in self.init_host_map or self.single_task_mode):
return
user_at_host = host
if owner:
user_at_host = owner + '@' + host
r_suite_run_dir = GLOBAL_CFG.get_derived_host_item(
reg, 'suite run directory', host, owner)
r_log_job_dir = GLOBAL_CFG.get_derived_host_item(
reg, 'suite job log directory', host, owner)
r_suite_srv_dir = os.path.join(
r_suite_run_dir, self.suite_srv_files_mgr.DIR_BASE_SRV)
# Create a UUID file in the service directory.
# If remote host has the file in its service directory, we can assume
# that the remote host has a shared file system with the suite host.
ssh_tmpl = GLOBAL_CFG.get_host_item('ssh command', host, owner)
uuid_str = str(uuid4())
uuid_fname = os.path.join(
self.suite_srv_files_mgr.get_suite_srv_dir(reg), uuid_str)
try:
open(uuid_fname, 'wb').close()
proc = Popen(
shlex.split(ssh_tmpl) + [
'-n', user_at_host,
'test', '-e', os.path.join(r_suite_srv_dir, uuid_str)],
stdout=PIPE, stderr=PIPE)
if proc.wait() == 0:
# Initialised, but no need to tidy up
self.init_host_map[(host, owner)] = False
return
finally:
try:
os.unlink(uuid_fname)
except OSError:
pass
cmds = []
# Command to create suite directory structure on remote host.
cmds.append(shlex.split(ssh_tmpl) + [
'-n', user_at_host,
'mkdir', '-p',
r_suite_run_dir, r_log_job_dir, r_suite_srv_dir])
# Command to copy contact and authentication files to remote host.
# Note: no need to do this if task communication method is "poll".
should_unlink = GLOBAL_CFG.get_host_item(
'task communication method', host, owner) != "poll"
if should_unlink:
scp_tmpl = GLOBAL_CFG.get_host_item('scp command', host, owner)
cmds.append(shlex.split(scp_tmpl) + [
'-p',
self.suite_srv_files_mgr.get_contact_file(reg),
self.suite_srv_files_mgr.get_auth_item(
self.suite_srv_files_mgr.FILE_BASE_PASSPHRASE, reg),
self.suite_srv_files_mgr.get_auth_item(
self.suite_srv_files_mgr.FILE_BASE_SSL_CERT, reg),
user_at_host + ':' + r_suite_srv_dir + '/'])
# Command to copy python library to remote host.
suite_run_py = os.path.join(
GLOBAL_CFG.get_derived_host_item(reg, 'suite run directory'),
'python')
if os.path.isdir(suite_run_py):
cmds.append(shlex.split(scp_tmpl) + [
'-pr',
suite_run_py, user_at_host + ':' + r_suite_run_dir + '/'])
# Run commands in sequence.
for cmd in cmds:
proc = Popen(cmd, stdout=PIPE, stderr=PIPE)
out, err = proc.communicate()
if proc.wait():
raise RemoteJobHostInitError(
RemoteJobHostInitError.MSG_INIT,
user_at_host, ' '.join([quote(item) for item in cmd]),
proc.returncode, out, err)
self.init_host_map[(host, owner)] = should_unlink
LOG.info('Initialised %s:%s' % (user_at_host, r_suite_run_dir))
def kill_task_jobs(self, suite, itasks, warn_skips=False):
"""Kill jobs of active tasks, and hold the tasks.
If items is specified, kill active tasks matching given IDs.
"""
active_itasks = []
for itask in itasks:
if itask.state.status in TASK_STATUSES_ACTIVE:
itask.state.set_held()
active_itasks.append(itask)
elif warn_skips: # and not active
LOG.warning(
'%s: skip kill, task not killable' % itask.identity)
self._run_job_cmd(
self.JOBS_KILL, suite, active_itasks,
self._kill_task_jobs_callback)
def poll_task_jobs(self, suite, itasks, warn_skips=False):
"""Poll jobs of specified tasks."""
active_itasks = []
for itask in itasks:
if itask.state.status in TASK_STATUSES_ACTIVE:
active_itasks.append(itask)
elif warn_skips: # and not active
LOG.warning(
'%s: skip poll, task not pollable' % itask.identity)
self._run_job_cmd(
self.JOBS_POLL, suite, active_itasks,
self._poll_task_jobs_callback)
def prep_submit_task_jobs(self, suite, itasks, dry_run=False):
"""Prepare task jobs for submit."""
if not itasks:
return
prepared_tasks = []
for itask in itasks:
if self._prep_submit_task_job(suite, itask, dry_run) is not None:
prepared_tasks.append(itask)
return prepared_tasks
def submit_task_jobs(self, suite, itasks, is_simulation=False):
"""Prepare and submit task jobs."""
if is_simulation:
return self._simulation_submit_task_jobs(itasks)
# Prepare tasks for job submission
prepared_tasks = self.prep_submit_task_jobs(suite, itasks)
if not prepared_tasks:
return
# Submit task jobs
auth_itasks = {}
for itask in prepared_tasks:
# The job file is now (about to be) used: reset the file write flag
# so that subsequent manual retrigger will generate a new job file.
itask.local_job_file_path = None
itask.state.reset_state(TASK_STATUS_READY)
if (itask.task_host, itask.task_owner) not in auth_itasks:
auth_itasks[(itask.task_host, itask.task_owner)] = []
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
for auth, itasks in sorted(auth_itasks.items()):
cmd = ["cylc", self.JOBS_SUBMIT]
if cylc.flags.debug:
cmd.append("--debug")
host, owner = auth
remote_mode = False
kwargs = {}
for key, value, test_func in [
('host', host, is_remote_host),
('user', owner, is_remote_user)]:
if test_func(value):
cmd.append('--%s=%s' % (key, value))
remote_mode = True
kwargs[key] = value
if remote_mode:
cmd.append('--remote-mode')
cmd.append("--")
cmd.append(GLOBAL_CFG.get_derived_host_item(
suite, 'suite job log directory', host, owner))
stdin_file_paths = []
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
if remote_mode:
stdin_file_paths.append(
self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name,
itask.submit_num, self.JOB_FILE_BASE))
job_log_dirs.append(self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
cmd += job_log_dirs
self.proc_pool.put_command(
SuiteProcContext(
self.JOBS_SUBMIT,
cmd,
stdin_file_paths=stdin_file_paths,
job_log_dirs=job_log_dirs,
**kwargs
),
self._submit_task_jobs_callback, [suite, itasks])
def unlink_hosts_contacts(self, reg):
"""Remove suite contact files from initialised hosts.
This is called on shutdown, so we don't want anything to hang.
Terminate any incomplete SSH commands after 10 seconds.
"""
# Issue all SSH commands in parallel
procs = {}
for (host, owner), should_unlink in self.init_host_map.items():
if not should_unlink:
continue
user_at_host = host
if owner:
user_at_host = owner + '@' + host
ssh_tmpl = GLOBAL_CFG.get_host_item('ssh command', host, owner)
r_suite_contact_file = os.path.join(
GLOBAL_CFG.get_derived_host_item(
reg, 'suite run directory', host, owner),
self.suite_srv_files_mgr.DIR_BASE_SRV,
self.suite_srv_files_mgr.FILE_BASE_CONTACT)
cmd = shlex.split(ssh_tmpl) + [
'-n', user_at_host, 'rm', '-f', r_suite_contact_file]
procs[user_at_host] = (cmd, Popen(cmd, stdout=PIPE, stderr=PIPE))
# Wait for commands to complete for a max of 10 seconds
timeout = time() + 10.0
while procs and time() < timeout:
for user_at_host, (cmd, proc) in procs.copy().items():
if proc.poll() is None:
continue
del procs[user_at_host]
out, err = proc.communicate()
if proc.wait():
ERR.warning(RemoteJobHostInitError(
RemoteJobHostInitError.MSG_TIDY,
user_at_host, ' '.join([quote(item) for item in cmd]),
proc.returncode, out, err))
# Terminate any remaining commands
for user_at_host, (cmd, proc) in procs.items():
try:
proc.terminate()
except OSError:
pass
out, err = proc.communicate()
if proc.wait():
ERR.warning(RemoteJobHostInitError(
RemoteJobHostInitError.MSG_TIDY,
user_at_host, ' '.join([quote(item) for item in cmd]),
proc.returncode, out, err))
def _check_timeout(self, itask, now):
"""Check/handle submission/execution timeouts."""
if itask.state.status == TASK_STATUS_RUNNING:
timer = itask.poll_timers.get(self.KEY_EXECUTE_TIME_LIMIT)
if timer is not None:
if not timer.is_timeout_set():
timer.next()
if not timer.is_delay_done():
# Don't poll
return False
if timer.next() is not None:
# Poll now, and more retries lined up
return True
# No more retry lined up, can issue execution timeout event
if itask.state.status in itask.timeout_timers:
timeout = itask.timeout_timers[itask.state.status]
if timeout is None or now <= timeout:
return False
itask.timeout_timers[itask.state.status] = None
if (itask.state.status == TASK_STATUS_RUNNING and
itask.summary['started_time'] is not None):
msg = 'job started %s ago, but has not finished' % (
get_seconds_as_interval_string(
timeout - itask.summary['started_time']))
event = 'execution timeout'
elif (itask.state.status == TASK_STATUS_SUBMITTED and
itask.summary['submitted_time'] is not None):
msg = 'job submitted %s ago, but has not started' % (
get_seconds_as_interval_string(
timeout - itask.summary['submitted_time']))
event = 'submission timeout'
else:
return False
LOG.warning(msg, itask=itask)
self.task_events_mgr.setup_event_handlers(itask, event, msg)
return True
def _create_job_log_path(self, suite, itask):
"""Create job log directory for a task job, etc.
Create local job directory, and NN symbolic link.
If NN => 01, remove numbered directories with submit numbers greater
than 01.
Return a string in the form "POINT/NAME/SUBMIT_NUM".
"""
job_file_dir = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num)
task_log_dir = os.path.dirname(job_file_dir)
if itask.submit_num == 1:
try:
names = os.listdir(task_log_dir)
except OSError:
pass
else:
for name in names:
if name not in ["01", self.task_events_mgr.NN]:
rmtree(
os.path.join(task_log_dir, name),
ignore_errors=True)
else:
rmtree(job_file_dir, ignore_errors=True)
mkdir_p(job_file_dir)
target = os.path.join(task_log_dir, self.task_events_mgr.NN)
source = os.path.basename(job_file_dir)
try:
prev_source = os.readlink(target)
except OSError:
prev_source = None
if prev_source == source:
return
try:
if prev_source:
os.unlink(target)
os.symlink(source, target)
except OSError as exc:
if not exc.filename:
exc.filename = target
raise exc
@staticmethod
def _get_job_scripts(itask, rtconfig):
"""Return pre-script, script, post-script for a job."""
script = rtconfig['script']
pre_script = rtconfig['pre-script']
post_script = rtconfig['post-script']
if itask.tdef.suite_polling_cfg:
# Automatic suite state polling script
comstr = "cylc suite-state " + \
" --task=" + itask.tdef.suite_polling_cfg['task'] + \
" --point=" + str(itask.point) + \
" --status=" + itask.tdef.suite_polling_cfg['status']
if cylc.flags.debug:
comstr += ' --debug'
for key, fmt in [
('user', ' --%s=%s'),
('host', ' --%s=%s'),
('interval', ' --%s=%d'),
('max-polls', ' --%s=%s'),
('run-dir', ' --%s=%s'),
('template', ' --%s=%s')]:
if rtconfig['suite state polling'][key]:
comstr += fmt % (key, rtconfig['suite state polling'][key])
comstr += " " + itask.tdef.suite_polling_cfg['suite']
script = "echo " + comstr + "\n" + comstr
return pre_script, script, post_script
def _job_cmd_out_callback(self, suite, itask, cmd_ctx, line):
"""Callback on job command STDOUT/STDERR."""
if cmd_ctx.cmd_kwargs.get("host") and cmd_ctx.cmd_kwargs.get("user"):
user_at_host = "(%(user)s@%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("host"):
user_at_host = "(%(host)s) " % cmd_ctx.cmd_kwargs
elif cmd_ctx.cmd_kwargs.get("user"):
user_at_host = "(%(user)s@localhost) " % cmd_ctx.cmd_kwargs
else:
user_at_host = ""
try:
timestamp, _, content = line.split("|")
except ValueError:
pass
else:
line = "%s %s" % (timestamp, content)
job_activity_log = self.task_events_mgr.get_task_job_activity_log(
suite, itask.point, itask.tdef.name)
try:
with open(job_activity_log, "ab") as handle:
if not line.endswith("\n"):
line += "\n"
handle.write(user_at_host + line)
except IOError as exc:
LOG.warning("%s: write failed\n%s" % (job_activity_log, exc))
LOG.warning(user_at_host + line, itask=itask)
def _kill_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when kill tasks command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._kill_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _kill_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _kill_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_KILL, None)
ctx.out = line
try:
ctx.timestamp, _, ctx.ret_code = line.split("|", 2)
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
log_lvl = INFO
log_msg = 'killed'
if ctx.ret_code: # non-zero exit status
log_lvl = WARNING
log_msg = 'kill failed'
itask.state.kill_failed = True
elif itask.state.status == TASK_STATUS_SUBMITTED:
self.task_events_mgr.process_message(
itask, CRITICAL, "%s at %s" % (
self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp))
cylc.flags.iflag = True
elif itask.state.status == TASK_STATUS_RUNNING:
self.task_events_mgr.process_message(
itask, CRITICAL, TASK_OUTPUT_FAILED)
cylc.flags.iflag = True
else:
log_lvl = WARNING
log_msg = (
'ignoring job kill result, unexpected task state: %s' %
itask.state.status)
itask.summary['latest_message'] = log_msg
LOG.log(log_lvl, "[%s] -job(%02d) %s" % (
itask.identity, itask.submit_num, log_msg))
@staticmethod
def _manip_task_jobs_callback(
ctx, suite, itasks, summary_callback, more_callbacks=None):
"""Callback when submit/poll/kill tasks command exits."""
if ctx.ret_code:
LOG.error(ctx)
else:
LOG.debug(ctx)
tasks = {}
# Note for "kill": It is possible for a job to trigger its trap and
# report back to the suite back this logic is called. If so, the task
# will no longer be TASK_STATUS_SUBMITTED or TASK_STATUS_RUNNING, and
# its output line will be ignored here.
for itask in itasks:
if itask.point is not None and itask.submit_num:
submit_num = "%02d" % (itask.submit_num)
tasks[(str(itask.point), itask.tdef.name, submit_num)] = itask
handlers = [(BatchSysManager.OUT_PREFIX_SUMMARY, summary_callback)]
if more_callbacks:
for prefix, callback in more_callbacks.items():
handlers.append((prefix, callback))
out = ctx.out
if not out:
out = ""
# Something is very wrong here
# Fallback to use "job_log_dirs" list to report the problem
job_log_dirs = ctx.cmd_kwargs.get("job_log_dirs", [])
for job_log_dir in job_log_dirs:
point, name, submit_num = job_log_dir.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
out += (BatchSysManager.OUT_PREFIX_SUMMARY +
"|".join([ctx.timestamp, job_log_dir, "1"]) + "\n")
for line in out.splitlines(True):
for prefix, callback in handlers:
if line.startswith(prefix):
line = line[len(prefix):].strip()
try:
path = line.split("|", 2)[1] # timestamp, path, status
point, name, submit_num = path.split(os.sep, 2)
itask = tasks[(point, name, submit_num)]
callback(suite, itask, ctx, line)
except (KeyError, ValueError):
if cylc.flags.debug:
LOG.warning('Unhandled %s output: %s' % (
ctx.cmd_key, line))
LOG.warning(traceback.format_exc())
def _poll_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when poll tasks command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._poll_task_job_callback,
{BatchSysManager.OUT_PREFIX_MESSAGE:
self._poll_task_job_message_callback})
def _poll_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
ctx.ret_code = 0
items = line.split("|")
# See cylc.batch_sys_manager.JobPollContext
try:
(
batch_sys_exit_polled, run_status, run_signal,
time_submit_exit, time_run, time_run_exit
) = items[4:10]
except IndexError:
itask.summary['latest_message'] = 'poll failed'
cylc.flags.iflag = True
ctx.cmd = cmd_ctx.cmd # print original command on failure
return
finally:
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
if run_status == "1" and run_signal in ["ERR", "EXIT"]:
# Failed normally
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, time_run_exit)
elif run_status == "1" and batch_sys_exit_polled == "1":
# Failed by a signal, and no longer in batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, time_run_exit)
self.task_events_mgr.process_message(
itask, INFO, TaskMessage.FAIL_MESSAGE_PREFIX + run_signal,
time_run_exit)
elif run_status == "1":
# The job has terminated, but is still managed by batch system.
# Some batch system may restart a job in this state, so don't
# mark as failed yet.
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_STARTED, time_run)
elif run_status == "0":
# The job succeeded
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_SUCCEEDED, time_run_exit)
elif time_run and batch_sys_exit_polled == "1":
# The job has terminated without executing the error trap
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_FAILED, "")
elif time_run:
# The job has started, and is still managed by batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_STARTED, time_run)
elif batch_sys_exit_polled == "1":
# The job never ran, and no longer in batch system
self.task_events_mgr.process_message(
itask, INFO, self.task_events_mgr.EVENT_SUBMIT_FAILED,
time_submit_exit)
else:
# The job never ran, and is in batch system
self.task_events_mgr.process_message(
itask, INFO, TASK_STATUS_SUBMITTED, time_submit_exit)
def _poll_task_job_message_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _poll_task_jobs_callback, on message of one task job."""
ctx = SuiteProcContext(self.JOBS_POLL, None)
ctx.out = line
try:
event_time, priority, message = line.split("|")[2:5]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = 0
self.task_events_mgr.process_message(
itask, priority, message, event_time)
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
def _run_job_cmd(self, cmd_key, suite, itasks, callback):
"""Run job commands, e.g. poll, kill, etc.
Group itasks with their user@host.
Put a job command for each user@host to the multiprocess pool.
"""
if not itasks:
return
auth_itasks = {}
for itask in itasks:
if (itask.task_host, itask.task_owner) not in auth_itasks:
auth_itasks[(itask.task_host, itask.task_owner)] = []
auth_itasks[(itask.task_host, itask.task_owner)].append(itask)
for (host, owner), itasks in sorted(auth_itasks.items()):
cmd = ["cylc", cmd_key]
if cylc.flags.debug:
cmd.append("--debug")
try:
if is_remote_host(host):
cmd.append("--host=%s" % (host))
except IOError:
# Bad host, run the command any way, command will fail and
# callback will deal with it
cmd.append("--host=%s" % (host))
if is_remote_user(owner):
cmd.append("--user=%s" % (owner))
cmd.append("--")
cmd.append(GLOBAL_CFG.get_derived_host_item(
suite, "suite job log directory", host, owner))
job_log_dirs = []
for itask in sorted(itasks, key=lambda itask: itask.identity):
job_log_dirs.append(self.task_events_mgr.get_task_job_id(
itask.point, itask.tdef.name, itask.submit_num))
cmd += job_log_dirs
self.proc_pool.put_command(
SuiteProcContext(cmd_key, cmd), callback, [suite, itasks])
@staticmethod
def _set_retry_timers(itask, rtconfig=None):
"""Set try number and retry delays."""
if rtconfig is None:
rtconfig = itask.tdef.rtconfig
try:
no_retry = (
rtconfig[itask.tdef.run_mode + ' mode']['disable retries'])
except KeyError:
no_retry = False
if not no_retry:
for key, cfg_key in [
(TASK_STATUS_SUBMIT_RETRYING, 'submission retry delays'),
(TASK_STATUS_RETRYING, 'execution retry delays')]:
delays = rtconfig['job'][cfg_key]
try:
itask.try_timers[key].set_delays(delays)
except KeyError:
itask.try_timers[key] = TaskActionTimer(delays=delays)
def _simulation_submit_task_jobs(self, itasks):
"""Simulation mode task jobs submission."""
for itask in itasks:
self._set_retry_timers(itask)
itask.task_host = 'SIMULATION'
itask.task_owner = 'SIMULATION'
itask.summary['batch_sys_name'] = 'SIMULATION'
itask.summary[self.KEY_EXECUTE_TIME_LIMIT] = (
itask.tdef.rtconfig['job']['simulated run length'])
self.task_events_mgr.process_message(
itask, INFO, TASK_OUTPUT_SUBMITTED)
def _submit_task_jobs_callback(self, ctx, suite, itasks):
"""Callback when submit task jobs command exits."""
self._manip_task_jobs_callback(
ctx,
suite,
itasks,
self._submit_task_job_callback,
{BatchSysManager.OUT_PREFIX_COMMAND: self._job_cmd_out_callback})
def _submit_task_job_callback(self, suite, itask, cmd_ctx, line):
"""Helper for _submit_task_jobs_callback, on one task job."""
ctx = SuiteProcContext(self.JOBS_SUBMIT, None)
ctx.out = line
items = line.split("|")
try:
ctx.timestamp, _, ctx.ret_code = items[0:3]
except ValueError:
ctx.ret_code = 1
ctx.cmd = cmd_ctx.cmd # print original command on failure
else:
ctx.ret_code = int(ctx.ret_code)
if ctx.ret_code:
ctx.cmd = cmd_ctx.cmd # print original command on failure
self.task_events_mgr.log_task_job_activity(
ctx, suite, itask.point, itask.tdef.name)
if ctx.ret_code == SuiteProcPool.JOB_SKIPPED_FLAG:
return
try:
itask.summary['submit_method_id'] = items[3]
except IndexError:
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] == "None":
itask.summary['submit_method_id'] = None
if itask.summary['submit_method_id'] and ctx.ret_code == 0:
self.task_events_mgr.process_message(
itask, INFO, '%s at %s' % (
TASK_OUTPUT_SUBMITTED, ctx.timestamp))
else:
self.task_events_mgr.process_message(
itask, CRITICAL, '%s at %s' % (
self.task_events_mgr.EVENT_SUBMIT_FAILED, ctx.timestamp))
def _prep_submit_task_job(self, suite, itask, dry_run):
"""Prepare a task job submission.
Return itask on a good preparation.
"""
if itask.local_job_file_path and not dry_run:
return itask
try:
job_conf = self._prep_submit_task_job_impl(suite, itask)
local_job_file_path = self.task_events_mgr.get_task_job_log(
suite, itask.point, itask.tdef.name, itask.submit_num,
self.JOB_FILE_BASE)
self.job_file_writer.write(local_job_file_path, job_conf)
except Exception, exc:
# Could be a bad command template.
ERR.error(traceback.format_exc())
LOG.error(traceback.format_exc())
self.task_events_mgr.log_task_job_activity(
SuiteProcContext(
self.JOBS_SUBMIT,
'(prepare job file)', err=exc, ret_code=1),
suite, itask.point, itask.tdef.name)
if not dry_run:
self.task_events_mgr.process_message(
itask, CRITICAL, self.task_events_mgr.EVENT_SUBMIT_FAILED)
return
itask.local_job_file_path = local_job_file_path
if dry_run:
# This will be shown next to submit num in gcylc:
itask.summary['latest_message'] = 'job file written (edit/dry-run)'
LOG.debug("[%s] -%s" % (
itask.identity, itask.summary['latest_message']))
# Return value used by "cylc submit" and "cylc jobscript":
return itask