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import logging
import json
from teuthology.task import Task
from teuthology import misc
from tasks import ceph_manager
log = logging.getLogger(__name__)
class CheckCounter(Task):
"""
Use this task to validate that some daemon perf counters were
incremented by the nested tasks.
Config:
'cluster_name': optional, specify which cluster
'target': dictionary of daemon type to list of performance counters.
'dry_run': just log the value of the counters, don't fail if they
aren't nonzero.
Success condition is that for all of the named counters, at least
one of the daemons of that type has the counter nonzero.
Example to check cephfs dirfrag splits are happening:
- install:
- ceph:
- ceph-fuse:
- check-counter:
counters:
mds:
- "mds.dir_split"
-
name: "mds.dir_update"
min: 3
- workunit: ...
"""
@property
def admin_remote(self):
first_mon = misc.get_first_mon(self.ctx, None)
(result,) = self.ctx.cluster.only(first_mon).remotes.keys()
return result
def start(self):
log.info("START")
def end(self):
overrides = self.ctx.config.get('overrides', {})
misc.deep_merge(self.config, overrides.get('check-counter', {}))
cluster_name = self.config.get('cluster_name', None)
dry_run = self.config.get('dry_run', False)
targets = self.config.get('counters', {})
if cluster_name is None:
cluster_name = next(iter(self.ctx.managers.keys()))
mon_manager = ceph_manager.CephManager(self.admin_remote, ctx=self.ctx, logger=log.getChild('ceph_manager'))
active_mgr = json.loads(mon_manager.raw_cluster_cmd("mgr", "dump", "--format=json-pretty"))["active_name"]
for daemon_type, counters in targets.items():
# List of 'a', 'b', 'c'...
daemon_ids = list(misc.all_roles_of_type(self.ctx.cluster, daemon_type))
daemons = dict([(daemon_id,
self.ctx.daemons.get_daemon(daemon_type, daemon_id))
for daemon_id in daemon_ids])
expected = set()
seen = set()
for daemon_id, daemon in daemons.items():
if not daemon.running():
log.info("Ignoring daemon {0}, it isn't running".format(daemon_id))
continue
elif daemon_type == 'mgr' and daemon_id != active_mgr:
continue
else:
log.debug("Getting stats from {0}".format(daemon_id))
manager = self.ctx.managers[cluster_name]
proc = manager.admin_socket(daemon_type, daemon_id, ["perf", "dump"])
response_data = proc.stdout.getvalue().strip()
if response_data:
perf_dump = json.loads(response_data)
else:
log.warning("No admin socket response from {0}, skipping".format(daemon_id))
continue
minval = ''
expected_val = ''
for counter in counters:
if isinstance(counter, dict):
name = counter['name']
if 'min' in counter:
minval = counter['min']
if 'expected_val' in counter:
expected_val = counter['expected_val']
else:
name = counter
minval = 1
expected.add(name)
val = perf_dump
for key in name.split('.'):
if key not in val:
log.warning(f"Counter '{name}' not found on daemon {daemon_type}.{daemon_id}")
val = None
break
val = val[key]
if val is not None:
log.info(f"Daemon {daemon_type}.{daemon_id} {name}={val}")
if isinstance(minval, int) and val >= minval:
seen.add(name)
elif isinstance(expected_val, int) and val == expected_val:
seen.add(name)
if not dry_run:
unseen = set(expected) - set(seen)
if unseen:
raise RuntimeError("The following counters failed to be set "
"on {0} daemons: {1}".format(
daemon_type, unseen
))
task = CheckCounter
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