Improve lock contention affecting read and write latencies during TSD…

…B head compaction (cherry-pick Prometheus PR 15242) (#9822)

* Cherry-pick Prometheus PR 15242

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Added CHANGELOG entry

Signed-off-by: Marco Pracucci <marco@pracucci.com>

* Updated CHANGELOG

Signed-off-by: Marco Pracucci <marco@pracucci.com>

---------

Signed-off-by: Marco Pracucci <marco@pracucci.com>

CHANGELOG.md

@@ -52,6 +52,7 @@
 * [ENHANCEMENT] Ingester: Reduced lock contention in the `PostingsForMatchers` cache. #9773
 * [ENHANCEMENT] Storage: Allow HTTP client settings to be tuned for GCS and Azure backends via an `http` block or corresponding CLI flags. This was already supported by the S3 backend. #9778
 * [ENHANCEMENT] Ruler: Support `group_limit` and `group_next_token` parameters in the `<prometheus-http-prefix>/api/v1/rules` endpoint. #9563
+* [ENHANCEMENT] Ingester: improved lock contention affecting read and write latencies during TSDB head compaction. #9822
 * [BUGFIX] Fix issue where functions such as `rate()` over native histograms could return incorrect values if a float stale marker was present in the selected range. #9508
 * [BUGFIX] Fix issue where negation of native histograms (eg. `-some_native_histogram_series`) did nothing. #9508
 * [BUGFIX] Fix issue where `metric might not be a counter, name does not end in _total/_sum/_count/_bucket` annotation would be emitted even if `rate` or `increase` did not have enough samples to compute a result. #9508

go.mod

@@ -282,7 +282,7 @@ require (
 )
 
 // Using a fork of Prometheus with Mimir-specific changes.
-replace github.com/prometheus/prometheus => github.com/grafana/mimir-prometheus v0.0.0-20241030085501-6c2603082009
+replace github.com/prometheus/prometheus => github.com/grafana/mimir-prometheus v0.0.0-20241104085513-57e1ca2a6f61
 
 // Replace memberlist with our fork which includes some fixes that haven't been
 // merged upstream yet:

go.sum

@@ -1270,8 +1270,8 @@ github.com/grafana/gomemcache v0.0.0-20241016125027-0a5bcc5aef40 h1:1TeKhyS+pvzO
 github.com/grafana/gomemcache v0.0.0-20241016125027-0a5bcc5aef40/go.mod h1:IGRj8oOoxwJbHBYl1+OhS9UjQR0dv6SQOep7HqmtyFU=
 github.com/grafana/memberlist v0.3.1-0.20220714140823-09ffed8adbbe h1:yIXAAbLswn7VNWBIvM71O2QsgfgW9fRXZNR0DXe6pDU=
 github.com/grafana/memberlist v0.3.1-0.20220714140823-09ffed8adbbe/go.mod h1:MS2lj3INKhZjWNqd3N0m3J+Jxf3DAOnAH9VT3Sh9MUE=
-github.com/grafana/mimir-prometheus v0.0.0-20241030085501-6c2603082009 h1:ZIlymN/o3WNl8jzBRkQXLvtW5/5wF9bZ5Cy9dxHwku0=
-github.com/grafana/mimir-prometheus v0.0.0-20241030085501-6c2603082009/go.mod h1:7SuFBLahBoRY7KcgzWzK0p1n5QL+5dyr/Ysat6v1378=
+github.com/grafana/mimir-prometheus v0.0.0-20241104085513-57e1ca2a6f61 h1:5iLgPt4mT0zZoe3N+y4Dw8IAvxJwTl0eIlUS8q0iGg0=
+github.com/grafana/mimir-prometheus v0.0.0-20241104085513-57e1ca2a6f61/go.mod h1:7SuFBLahBoRY7KcgzWzK0p1n5QL+5dyr/Ysat6v1378=
 github.com/grafana/opentracing-contrib-go-stdlib v0.0.0-20230509071955-f410e79da956 h1:em1oddjXL8c1tL0iFdtVtPloq2hRPen2MJQKoAWpxu0=
 github.com/grafana/opentracing-contrib-go-stdlib v0.0.0-20230509071955-f410e79da956/go.mod h1:qtI1ogk+2JhVPIXVc6q+NHziSmy2W5GbdQZFUHADCBU=
 github.com/grafana/prometheus-alertmanager v0.25.1-0.20240930132144-b5e64e81e8d3 h1:6D2gGAwyQBElSrp3E+9lSr7k8gLuP3Aiy20rweLWeBw=