Add metric fo number of state groups in resolution

This commit is contained in:
Erik Johnston 2019-06-17 16:29:00 +01:00
parent 499d4a32cd
commit ff88d36dcb
1 changed files with 10 additions and 0 deletions

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@ -21,6 +21,7 @@ from six import iteritems, itervalues
import attr
from frozendict import frozendict
from prometheus_client import Histogram
from twisted.internet import defer
@ -37,6 +38,13 @@ from synapse.util.metrics import Measure
logger = logging.getLogger(__name__)
# Metrics for number of state groups involved in a resolution.
state_groups_histogram = Histogram(
"synapse_state_number_state_groups", "",
buckets=(0, 1, 2, 3, 5, 7, 10, 20, 50, 100, "+Inf"),
)
KeyStateTuple = namedtuple("KeyStateTuple", ("context", "type", "state_key"))
@ -364,6 +372,8 @@ class StateHandler(object):
room_id, event_ids
)
state_groups_histogram.observe(len(state_groups_ids))
if len(state_groups_ids) == 0:
defer.returnValue(_StateCacheEntry(
state={},