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Allow configuration of Synapse's cache without using synctl or environment variables (#6391)

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Amber Brown 2020-05-12 03:45:23 +10:00 • committed by GitHub
parent a8580c5f19
commit 7cb8b4bc67
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32 changed files with 620 additions and 146 deletions
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12
synapse/metrics/_exposition.py
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@ -33,6 +33,8 @@ from prometheus_client import REGISTRY
from twisted.web.resource import Resource
from synapse.util import caches
try:
from prometheus_client.samples import Sample
except ImportError:
@ -103,13 +105,15 @@ def nameify_sample(sample):
def generate_latest(registry, emit_help=False):
# Trigger the cache metrics to be rescraped, which updates the common
# metrics but do not produce metrics themselves
for collector in caches.collectors_by_name.values():
collector.collect()
output = []
for metric in registry.collect():
if metric.name.startswith("__unused"):
continue
if not metric.samples:
# No samples, don't bother.
continue