mirror of
https://github.com/ceph/ceph
synced 2024-12-14 23:46:28 +00:00
100 lines
3.4 KiB
Python
100 lines
3.4 KiB
Python
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import logging
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import json
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from teuthology.task import Task
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from teuthology import misc
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import ceph_manager
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log = logging.getLogger(__name__)
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class CheckCounter(Task):
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"""
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Use this task to validate that some daemon perf counters were
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incremented by the nested tasks.
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Config:
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'cluster_name': optional, specify which cluster
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'target': dictionary of daemon type to list of performance counters.
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'dry_run': just log the value of the counters, don't fail if they
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aren't nonzero.
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Success condition is that for all of the named counters, at least
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one of the daemons of that type has the counter nonzero.
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Example to check cephfs dirfrag splits are happening:
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- install:
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- ceph:
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- ceph-fuse:
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- check-counter:
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counters:
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mds:
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- "mds.dir_split"
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- workunit: ...
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"""
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def start(self):
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log.info("START")
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def end(self):
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overrides = self.ctx.config.get('overrides', {})
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misc.deep_merge(self.config, overrides.get('check-counter', {}))
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cluster_name = self.config.get('cluster_name', None)
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dry_run = self.config.get('dry_run', False)
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targets = self.config.get('counters', {})
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if cluster_name is None:
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cluster_name = self.ctx.managers.keys()[0]
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for daemon_type, counters in targets.items():
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# List of 'a', 'b', 'c'...
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daemon_ids = list(misc.all_roles_of_type(self.ctx.cluster, daemon_type))
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daemons = dict([(daemon_id,
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self.ctx.daemons.get_daemon(daemon_type, daemon_id))
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for daemon_id in daemon_ids])
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seen = set()
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for daemon_id, daemon in daemons.items():
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if not daemon.running():
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log.info("Ignoring daemon {0}, it isn't running".format(daemon_id))
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continue
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else:
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log.debug("Getting stats from {0}".format(daemon_id))
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manager = self.ctx.managers[cluster_name]
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proc = manager.admin_socket(daemon_type, daemon_id, ["perf", "dump"])
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response_data = proc.stdout.getvalue().strip()
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if response_data:
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perf_dump = json.loads(response_data)
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else:
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log.warning("No admin socket response from {0}, skipping".format(daemon_id))
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continue
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for counter in counters:
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subsys, counter_id = counter.split(".")
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if subsys not in perf_dump or counter_id not in perf_dump[subsys]:
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log.warning("Counter '{0}' not found on daemon {1}.{2}".format(
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counter, daemon_type, daemon_id))
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continue
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value = perf_dump[subsys][counter_id]
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log.info("Daemon {0}.{1} {2}={3}".format(
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daemon_type, daemon_id, counter, value
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))
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if value > 0:
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seen.add(counter)
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if not dry_run:
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unseen = set(counters) - set(seen)
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if unseen:
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raise RuntimeError("The following counters failed to be set "
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"on {0} daemons: {1}".format(
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daemon_type, unseen
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))
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task = CheckCounter
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