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Update with new state of reality

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This commit is contained in:
Eric Eastwood
2025-06-20 16:18:19 -05:00
parent bb3904cac9
commit adaf5b0fa3
1 changed files with 5 additions and 3 deletions
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synapse/metrics/_twisted_exposition.py
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@@ -41,9 +41,11 @@ def _set_prometheus_client_use_created_metrics(new_value: bool) -> None:
Sets whether prometheus_client should expose `_created`-suffixed metrics for
all gauges, histograms and summaries.
There is no programmatic way to disable this without poking at internals;
the proper way is to use an environment variable which prometheus_client
loads at import time.
There is no programmatic way in the old versions of `prometheus_client` to disable
this without poking at internals; the proper way in the old `prometheus_client`
versions is to use an environment variable which prometheus_client loads at import
time OR to use the dedicated `disable_created_metrics()`/`enable_created_metrics()`
functions, but these were only added in `prometheus_client` `0.18.0`.
The motivation for disabling these `_created` metrics is that they're
a waste of space as they're not useful but they take up space in Prometheus.