mirror of
https://github.com/ceph/ceph
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e90e37690a
We need this for CephFS, to verify that workloads we expect to do a particular thing (like directory fragmentation or metadata exports) are really doing it. This is for giving us confidence in our coverage of these features rather than testing them per se. Fixes: http://tracker.ceph.com/issues/16523 Signed-off-by: John Spray <john.spray@redhat.com>
97 lines
3.3 KiB
Python
97 lines
3.3 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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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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