def _stop_task(self):
db.failed_task_update(
self.ctx, self.failed_task_id, {
FailedTask.retry_count.name: self.retry_count,
FailedTask.result.name: self.result
})
self.metrics_task_rpcapi.remove_failed_job(self.ctx,
self.failed_task_id,
self.executor)
def schedule_failed_job(self, failed_task_id):
if self.stopped:
return
try:
job = db.failed_task_get(self.ctx, failed_task_id)
retry_count = job['retry_count']
result = job['result']
job_id = job['job_id']
if retry_count >= \
TelemetryCollection.MAX_FAILED_JOB_RETRY_COUNT or \
result == TelemetryJobStatus.FAILED_JOB_STATUS_SUCCESS:
LOG.info("Exiting Failure task processing for task [%d] "
"with result [%s] and retry count [%d] " %
(job['id'], result, retry_count))
self._teardown_task(self.ctx, job['id'], job_id)
return
# If job already scheduled, skip
if job_id and self.scheduler.get_job(job_id):
return
try:
db.task_get(self.ctx, job['task_id'])
except TaskNotFound as e:
LOG.info(
"Removing failed telemetry job as parent job "
"do not exist: %s", six.text_type(e))
# tear down if original task is not available
self._teardown_task(self.ctx, job['id'], job_id)
return
if not (job_id and self.scheduler.get_job(job_id)):
job_id = uuidutils.generate_uuid()
db.failed_task_update(self.ctx, job['id'], {'job_id': job_id})
collection_class = importutils.import_class(job['method'])
instance = \
collection_class.get_instance(self.ctx, job['id'])
self.scheduler.add_job(
instance,
'interval',
seconds=job['interval'],
next_run_time=datetime.now(),
id=job_id,
misfire_grace_time=int(
CONF.telemetry.performance_collection_interval / 2))
self.job_ids.add(job_id)
except Exception as e:
LOG.error(
"Failed to schedule retry tasks for performance "
"collection, reason: %s", six.text_type(e))
else:
LOG.info("Schedule collection completed")
def __call__(self):
# Upon periodic job callback, if storage is already deleted or soft
# deleted,do not proceed with failed performance collection flow
try:
failed_task = db.failed_task_get(self.ctx, self.failed_task_id)
if failed_task["deleted"]:
LOG.debug('Storage %s getting deleted, ignoring '
'performance collection cycle for failed task id %s.'
% (self.storage_id, self.failed_task_id))
return
except exception.FailedTaskNotFound:
LOG.debug('Storage %s already deleted, ignoring '
'performance collection cycle for failed task id %s.'
% (self.storage_id, self.failed_task_id))
return
# Pull performance collection info
self.retry_count = self.retry_count + 1
try:
status = self.task_rpcapi.collect_telemetry(
self.ctx, self.storage_id,
PerformanceCollectionTask.__module__ + '.' +
PerformanceCollectionTask.__name__,
self.args, self.start_time, self.end_time)
if not status:
raise exception.TelemetryTaskExecError()
except Exception as e:
LOG.error(e)
msg = _("Failed to collect performance metrics for storage "
"id:{0}, reason:{1}".format(self.storage_id,
six.text_type(e)))
LOG.error(msg)
else:
LOG.info("Successfully completed Performance metrics collection "
"for storage id :{0} ".format(self.storage_id))
self.result = TelemetryJobStatus.FAILED_JOB_STATUS_SUCCESS
self._stop_task()
return
if self.retry_count >= TelemetryCollection.MAX_FAILED_JOB_RETRY_COUNT:
msg = _(
"Failed to collect performance metrics of task instance "
"id:{0} for start time:{1} and end time:{2} with "
"maximum retry. Giving up on "
"retry".format(self.failed_task_id, self.start_time,
self.end_time))
LOG.error(msg)
self._stop_task()
return
self.result = TelemetryJobStatus.FAILED_JOB_STATUS_RETRYING
db.failed_task_update(self.ctx, self.failed_task_id,
{FailedTask.retry_count.name: self.retry_count,
FailedTask.result.name: self.result})
def distribute_failed_job(self, failed_task_id, executor):
try:
db.failed_task_update(self.ctx, failed_task_id,
{'executor': executor})
LOG.info('Distribute a failed job, id: %s' % failed_task_id)
self.task_rpcapi.assign_failed_job(self.ctx, failed_task_id,
executor)
except Exception as e:
LOG.error('Failed to distribute failed job, reason: %s',
six.text_type(e))
raise e
def __call__(self):
"""
:return:
"""
try:
# Remove jobs from scheduler when marked for delete
filters = {'deleted': True}
failed_tasks = db.failed_task_get_all(self.ctx, filters=filters)
LOG.debug("Total failed_tasks found deleted "
"in this cycle:%s" % len(failed_tasks))
for failed_task in failed_tasks:
job_id = failed_task['job_id']
if job_id and self.scheduler.get_job(job_id):
self.scheduler.remove_job(job_id)
db.failed_task_delete(self.ctx, failed_task['id'])
except Exception as e:
LOG.error("Failed to remove periodic scheduling job , reason: %s.",
six.text_type(e))
try:
# Create the object of periodic scheduler
failed_tasks = db.failed_task_get_all(self.ctx)
if not len(failed_tasks):
LOG.info("No failed task found for performance collection")
return
LOG.debug("Schedule performance collection triggered: total "
"failed tasks:%s" % len(failed_tasks))
for failed_task in failed_tasks:
failed_task_id = failed_task[FailedTask.id.name]
LOG.info("Processing failed task : %s" % failed_task_id)
# Get failed jobs, if retry count has reached max,
# remove job and delete db entry
retry_count = failed_task[FailedTask.retry_count.name]
result = failed_task[FailedTask.result.name]
job_id = failed_task[FailedTask.job_id.name]
if retry_count >= \
TelemetryCollection.MAX_FAILED_JOB_RETRY_COUNT or \
result == TelemetryJobStatus.FAILED_JOB_STATUS_SUCCESS:
LOG.info("Exiting Failure task processing for task [%d] "
"with result [%s] and retry count [%d] " %
(failed_task_id, result, retry_count))
# task ID is same as job id
self._teardown_task(self.ctx, failed_task_id, job_id)
continue
# If job already scheduled, skip
if job_id and self.scheduler.get_job(job_id):
continue
try:
db.task_get(self.ctx, failed_task[FailedTask.task_id.name])
except TaskNotFound as e:
LOG.info(
"Removing failed telemetry job as parent job "
"do not exist: %s", six.text_type(e))
# tear down if original task is not available
self._teardown_task(self.ctx, failed_task_id, job_id)
continue
if not job_id:
job_id = uuidutils.generate_uuid()
db.failed_task_update(self.ctx, failed_task_id,
{FailedTask.job_id.name: job_id})
collection_class = importutils.import_class(
failed_task[FailedTask.method.name])
instance = \
collection_class.get_instance(self.ctx, failed_task_id)
self.scheduler.add_job(
instance,
'interval',
seconds=failed_task[FailedTask.interval.name],
next_run_time=datetime.now(),
id=job_id)
except Exception as e:
LOG.error(
"Failed to schedule retry tasks for performance "
"collection, reason: %s", six.text_type(e))
else:
LOG.info("Schedule collection completed")
def _stop_task(self):
db.failed_task_update(self.ctx, self.failed_task_id,
{FailedTask.retry_count.name: self.retry_count,
FailedTask.result.name: self.result})
self.scheduler_instance.pause_job(self.job_id)
