Eric Eastwood e43a1cec84 Fix cache metrics to collect from all servers (#18748) ... Follow-up to https://github.com/element-hq/synapse/pull/18604 Previously, our cache metrics did include the `server_name` label as expected but we were only seeing the last server being reported. This was caused because we would `CACHE_METRIC_REGISTRY.register_hook(metric_name, metric.collect)` where the `metric_name` only took into account the cache name so it would be overwritten every time we spawn a new server. This PR updates the register logic to include the `server_name` so we have a hook for every cache on every server as expected. I noticed this problem thanks to some [tests in the Synapse Pro for Small Hosts](https://github.com/element-hq/synapse-small-hosts/pull/173) repo that sanity check all metrics to ensure that we can see each metric includes data from multiple servers.		2025-08-01 12:29:58 -05:00
..
__init__.py	Avoid incrementing bg process utime/stime counters by negative durations (#14323)	2022-10-31 13:02:07 +00:00
test_background_process_metrics.py	Refactor background process metrics to be homeserver-scoped (#18670)	2025-07-23 13:28:17 -05:00
test_metrics.py	Fix cache metrics to collect from all servers (#18748)	2025-08-01 12:29:58 -05:00
test_phone_home_stats.py	Use twisted.internet.testing module in tests instead of deprecated twisted.test.proto_helpers. (#18728)	2025-07-30 12:32:10 +01:00