Merge branch 'master' into resource-based-throttling

Signed-off-by: Justin Jung <[email protected]>

Author: justinjung04

Diff for: CHANGELOG.md

@@ -6,7 +6,9 @@
 * [FEATURE] Querier/Ruler: Add `query_partial_data` and `rules_partial_data` limits to allow queries/rules to be evaluated with data from a single zone, if other zones are not available. #6526
 * [FEATURE] Update prometheus alertmanager version to v0.28.0 and add new integration msteamsv2, jira, and rocketchat. #6590
 * [FEATURE] Ingester: Add a `-ingester.enable-ooo-native-histograms` flag to enable out-of-order native histogram ingestion per tenant. It only takes effect when `-blocks-storage.tsdb.enable-native-histograms=true` and `-ingester.out-of-order-time-window` > 0. It is applied after the restart if it is changed at runtime through the runtime config. #6626
-* [FEATURE] Ingester/StoreGateway: Add `resource-thresholds` in ingesters and store gateways to throttle query requests when the pods are under resource pressure. #6674 
+* [FEATURE] Ingester/StoreGateway: Add `resource-thresholds` in ingesters and store gateways to throttle query requests when the pods are under resource pressure. #6674
+* [FEATURE] Ingester: Support out-of-order native histogram ingestion. It automatically enabled when `-ingester.out-of-order-time-window > 0` and `-blocks-storage.tsdb.enable-native-histograms=true`. #6626 #6663
+* [ENHANCEMENT] Alertmanager: Add nflog and silences maintenance metrics. #6659
 * [ENHANCEMENT] Querier: limit label APIs to query only ingesters if `start` param is not been specified. #6618
 * [ENHANCEMENT] Alertmanager: Add new limits `-alertmanager.max-silences-count` and `-alertmanager.max-silences-size-bytes` for limiting silences per tenant. #6605
 * [ENHANCEMENT] Update prometheus version to v3.1.0. #6583

Diff for: docs/configuration/config-file-reference.md

@@ -3535,13 +3535,6 @@ The `limits_config` configures default and per-tenant limits imposed by Cortex s
 # CLI flag: -ingester.max-exemplars
 [max_exemplars: <int> | default = 0]
 
-# [Experimental] Enable out-of-order native histogram ingestion, it only takes
-# effect when -blocks-storage.tsdb.enable-native-histograms=true and
-# -ingester.out-of-order-time-window > 0. It is applied after the restart if it
-# is changed at runtime through the runtime config.
-# CLI flag: -ingester.enable-ooo-native-histograms
-[enable_ooo_native_histograms: <boolean> | default = false]
-
 # Maximum number of chunks that can be fetched in a single query from ingesters
 # and long-term storage. This limit is enforced in the querier, ruler and
 # store-gateway. 0 to disable.

Diff for: docs/configuration/v1-guarantees.md

@@ -104,7 +104,6 @@ Currently experimental features are:
   - `-blocks-storage.tsdb.out-of-order-cap-max` (int) CLI flag
   - `-ingester.out-of-order-time-window` (duration) CLI flag
   - `out_of_order_time_window` (duration) field in runtime config file
-  - `enable_ooo_native_histograms` (bool) field in runtime config file
 - Store Gateway Zone Stable Shuffle Sharding
   - `-store-gateway.sharding-ring.zone-stable-shuffle-sharding` CLI flag
   - `zone_stable_shuffle_sharding` (boolean) field in config file

Diff for: docs/guides/native-histograms.md

@@ -55,35 +55,14 @@ overrides:
 
 ## How to enable out-of-order native histograms ingestion
 Like samples out-of-order ingestion, the Cortex allows out-of-order ingestion for the native histogram.
-To enable it, set the flag `-ingester.enable-ooo-native-histograms`.
+It is automatically enabled when `-blocks-storage.tsdb.enable-native-histograms=true` and `-ingester.out-of-order-time-window > 0`.
 
 And via yaml:
+
 ```yaml
+blocks_storage:
+  tsdb:
+    enable_native_histograms: true
 limits:
-  enable_ooo_native_histograms: <bool>
-```
-
-Is it only works if when `-blocks-storage.tsdb.enable-native-histograms=true` and `-ingester.out-of-order-time-window > 0`.
-
-To enable it per tenant, you can utilize a [runtime config](../configuration/arguments.md#runtime-configuration-file).
-
-For example, the following yaml file specifies enabling out-of-order native histogram ingestion for `user-1`, but not for `user-2`.
-
-```
-overrides:
-  user-1:
-    enable_ooo_native_histograms: true
-  user-2:
-    enable_ooo_native_histograms: false
-```
-
-**Caution**: It is applied after the Ingester restart if it is changed at runtime through the runtime config.
-For example, if you have changed the `enable_ooo_native_histograms` value to `false` of the `user-1` via the below yaml file, then the Ingester stops the out-of-order ingestion not until the Ingester restarts.
-
-```
-overrides:
-  user-1:
-    enable_ooo_native_histograms: false
-  user-2:
-    enable_ooo_native_histograms: false
+  out_of_order_time_window: 5m
 ```

Diff for: go.mod

@@ -51,7 +51,7 @@ require (
 	github.com/spf13/afero v1.11.0
 	github.com/stretchr/testify v1.10.0
 	github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97
-	github.com/thanos-io/promql-engine v0.0.0-20250302135832-accbf0891a16
+	github.com/thanos-io/promql-engine v0.0.0-20250324222505-d17b9bdecd14
 	github.com/thanos-io/thanos v0.37.3-0.20250212101700-346d18bb0f80
 	github.com/uber/jaeger-client-go v2.30.0+incompatible
 	github.com/weaveworks/common v0.0.0-20230728070032-dd9e68f319d5
@@ -78,7 +78,7 @@ require (
 	github.com/VictoriaMetrics/fastcache v1.12.2
 	github.com/bboreham/go-loser v0.0.0-20230920113527-fcc2c21820a3
 	github.com/cespare/xxhash/v2 v2.3.0
-	github.com/google/go-cmp v0.6.0
+	github.com/google/go-cmp v0.7.0
 	github.com/hashicorp/golang-lru/v2 v2.0.7
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822
 	github.com/prometheus/procfs v0.15.1
@@ -248,7 +248,7 @@ require (
 	golang.org/x/sys v0.30.0 // indirect
 	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/tools v0.29.0 // indirect
-	gonum.org/v1/gonum v0.15.0 // indirect
+	gonum.org/v1/gonum v0.15.1 // indirect
 	google.golang.org/api v0.218.0 // indirect
 	google.golang.org/genproto v0.0.0-20240823204242-4ba0660f739c // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20250115164207-1a7da9e5054f // indirect

Diff for: go.sum

@@ -1176,8 +1176,9 @@ github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
 github.com/google/go-cmp v0.5.8/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
 github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@@ -1684,8 +1685,8 @@ github.com/thanos-community/galaxycache v0.0.0-20211122094458-3a32041a1f1e h1:f1
 github.com/thanos-community/galaxycache v0.0.0-20211122094458-3a32041a1f1e/go.mod h1:jXcofnrSln/cLI6/dhlBxPQZEEQHVPCcFaH75M+nSzM=
 github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97 h1:VjG0mwhN1DkncwDHFvrpd12/2TLfgYNRmEQA48ikp+0=
 github.com/thanos-io/objstore v0.0.0-20241111205755-d1dd89d41f97/go.mod h1:vyzFrBXgP+fGNG2FopEGWOO/zrIuoy7zt3LpLeezRsw=
-github.com/thanos-io/promql-engine v0.0.0-20250302135832-accbf0891a16 h1:ezd8hNCWiGQr4kdfCHFa0VCSi+LAO/28Mna264nDs2c=
-github.com/thanos-io/promql-engine v0.0.0-20250302135832-accbf0891a16/go.mod h1:aHSV5hL94fNb7PklN9L0V10j+/RGIlzqbw7OLdNgZFs=
+github.com/thanos-io/promql-engine v0.0.0-20250324222505-d17b9bdecd14 h1:PJaKaeC6t2LvJxjiQwptj11bB6+ah9wRfZG75Ib9lo8=
+github.com/thanos-io/promql-engine v0.0.0-20250324222505-d17b9bdecd14/go.mod h1:lZZTb17gUxAWtFAeZzLn2p2hoEPvXGSj0rc3XqsLsig=
 github.com/thanos-io/thanos v0.37.3-0.20250212101700-346d18bb0f80 h1:mOCRYn9SLBWJCXAdP+qDfgZDc0eqDxDc2HZGKTZ5vzk=
 github.com/thanos-io/thanos v0.37.3-0.20250212101700-346d18bb0f80/go.mod h1:Y7D8la8B5rpzRVKq2HCR4hbYZ4LGroSPqIJjtizgQg8=
 github.com/tjhop/slog-gokit v0.1.2 h1:pmQI4SvU9h4gA0vIQsdhJQSqQg4mOmsPykG2/PM3j1I=
@@ -2281,8 +2282,8 @@ gonum.org/v1/gonum v0.0.0-20180816165407-929014505bf4/go.mod h1:Y+Yx5eoAFn32cQvJ
 gonum.org/v1/gonum v0.8.2/go.mod h1:oe/vMfY3deqTw+1EZJhuvEW2iwGF1bW9wwu7XCu0+v0=
 gonum.org/v1/gonum v0.9.3/go.mod h1:TZumC3NeyVQskjXqmyWt4S3bINhy7B4eYwW69EbyX+0=
 gonum.org/v1/gonum v0.11.0/go.mod h1:fSG4YDCxxUZQJ7rKsQrj0gMOg00Il0Z96/qMA4bVQhA=
-gonum.org/v1/gonum v0.15.0 h1:2lYxjRbTYyxkJxlhC+LvJIx3SsANPdRybu1tGj9/OrQ=
-gonum.org/v1/gonum v0.15.0/go.mod h1:xzZVBJBtS+Mz4q0Yl2LJTk+OxOg4jiXZ7qBoM0uISGo=
+gonum.org/v1/gonum v0.15.1 h1:FNy7N6OUZVUaWG9pTiD+jlhdQ3lMP+/LcTpJ6+a8sQ0=
+gonum.org/v1/gonum v0.15.1/go.mod h1:eZTZuRFrzu5pcyjN5wJhcIhnUdNijYxX1T2IcrOGY0o=
 gonum.org/v1/netlib v0.0.0-20190313105609-8cb42192e0e0/go.mod h1:wa6Ws7BG/ESfp6dHfk7C6KdzKA7wR7u/rKwOGE66zvw=
 gonum.org/v1/plot v0.0.0-20190515093506-e2840ee46a6b/go.mod h1:Wt8AAjI+ypCyYX3nZBvf6cAIx93T+c/OS2HFAYskSZc=
 gonum.org/v1/plot v0.9.0/go.mod h1:3Pcqqmp6RHvJI72kgb8fThyUnav364FOsdDo2aGW5lY=

Diff for: integration/native_histogram_test.go

@@ -33,7 +33,6 @@ func TestOOONativeHistogramIngestion(t *testing.T) {
 
 	flags := mergeFlags(baseFlags, map[string]string{
 		// ooo setting
-		"-ingester.enable-ooo-native-histograms":        "true",
 		"-blocks-storage.tsdb.enable-native-histograms": "true",
 		"-ingester.out-of-order-time-window":            "5m",
 		// alert manager

Diff for: pkg/alertmanager/alertmanager_metrics.go

@@ -30,6 +30,8 @@ type alertmanagerMetrics struct {
 	nflogQueryErrorsTotal        *prometheus.Desc
 	nflogQueryDuration           *prometheus.Desc
 	nflogPropagatedMessagesTotal *prometheus.Desc
+	nflogMaintenanceTotal        *prometheus.Desc
+	nflogMaintenanceErrorsTotal  *prometheus.Desc
 
 	// exported metrics, gathered from Alertmanager Marker
 	markerAlerts *prometheus.Desc
@@ -43,6 +45,8 @@ type alertmanagerMetrics struct {
 	silencesQueryDuration           *prometheus.Desc
 	silences                        *prometheus.Desc
 	silencesPropagatedMessagesTotal *prometheus.Desc
+	silencesMaintenanceTotal        *prometheus.Desc
+	silencesMaintenanceErrorsTotal  *prometheus.Desc
 
 	// The alertmanager config hash.
 	configHashValue *prometheus.Desc
@@ -127,6 +131,14 @@ func newAlertmanagerMetrics() *alertmanagerMetrics {
 			"cortex_alertmanager_nflog_gossip_messages_propagated_total",
 			"Number of received gossip messages that have been further gossiped.",
 			nil, nil),
+		nflogMaintenanceTotal: prometheus.NewDesc(
+			"cortex_alertmanager_nflog_maintenance_total",
+			"How many maintenances were executed for the notification log.",
+			nil, nil),
+		nflogMaintenanceErrorsTotal: prometheus.NewDesc(
+			"cortex_alertmanager_nflog_maintenance_errors_total",
+			"How many maintenances were executed for the notification log that failed.",
+			nil, nil),
 		markerAlerts: prometheus.NewDesc(
 			"cortex_alertmanager_alerts",
 			"How many alerts by state.",
@@ -163,6 +175,14 @@ func newAlertmanagerMetrics() *alertmanagerMetrics {
 			"cortex_alertmanager_silences",
 			"How many silences by state.",
 			[]string{"user", "state"}, nil),
+		silencesMaintenanceTotal: prometheus.NewDesc(
+			"cortex_alertmanager_silences_maintenance_total",
+			"How many maintenances were executed for silences.",
+			nil, nil),
+		silencesMaintenanceErrorsTotal: prometheus.NewDesc(
+			"cortex_alertmanager_silences_maintenance_errors_total",
+			"How many maintenances were executed for silences that failed.",
+			nil, nil),
 		configHashValue: prometheus.NewDesc(
 			"cortex_alertmanager_config_hash",
 			"Hash of the currently loaded alertmanager configuration.",
@@ -268,6 +288,8 @@ func (m *alertmanagerMetrics) Describe(out chan<- *prometheus.Desc) {
 	out <- m.nflogQueryErrorsTotal
 	out <- m.nflogQueryDuration
 	out <- m.nflogPropagatedMessagesTotal
+	out <- m.nflogMaintenanceTotal
+	out <- m.nflogMaintenanceErrorsTotal
 	out <- m.silencesGCDuration
 	out <- m.silencesSnapshotDuration
 	out <- m.silencesSnapshotSize
@@ -276,6 +298,8 @@ func (m *alertmanagerMetrics) Describe(out chan<- *prometheus.Desc) {
 	out <- m.silencesQueryDuration
 	out <- m.silencesPropagatedMessagesTotal
 	out <- m.silences
+	out <- m.silencesMaintenanceTotal
+	out <- m.silencesMaintenanceErrorsTotal
 	out <- m.configHashValue
 	out <- m.partialMerges
 	out <- m.partialMergesFailed
@@ -317,6 +341,8 @@ func (m *alertmanagerMetrics) Collect(out chan<- prometheus.Metric) {
 	data.SendSumOfCounters(out, m.nflogQueryErrorsTotal, "alertmanager_nflog_query_errors_total")
 	data.SendSumOfHistograms(out, m.nflogQueryDuration, "alertmanager_nflog_query_duration_seconds")
 	data.SendSumOfCounters(out, m.nflogPropagatedMessagesTotal, "alertmanager_nflog_gossip_messages_propagated_total")
+	data.SendSumOfCounters(out, m.nflogMaintenanceTotal, "alertmanager_nflog_maintenance_total")
+	data.SendSumOfCounters(out, m.nflogMaintenanceErrorsTotal, "alertmanager_nflog_maintenance_errors_total")
 
 	data.SendSumOfSummaries(out, m.silencesGCDuration, "alertmanager_silences_gc_duration_seconds")
 	data.SendSumOfSummaries(out, m.silencesSnapshotDuration, "alertmanager_silences_snapshot_duration_seconds")
@@ -326,6 +352,8 @@ func (m *alertmanagerMetrics) Collect(out chan<- prometheus.Metric) {
 	data.SendSumOfHistograms(out, m.silencesQueryDuration, "alertmanager_silences_query_duration_seconds")
 	data.SendSumOfCounters(out, m.silencesPropagatedMessagesTotal, "alertmanager_silences_gossip_messages_propagated_total")
 	data.SendSumOfGaugesPerUserWithLabels(out, m.silences, "alertmanager_silences", "state")
+	data.SendSumOfCounters(out, m.silencesMaintenanceTotal, "alertmanager_silences_maintenance_total")
+	data.SendSumOfCounters(out, m.silencesMaintenanceErrorsTotal, "alertmanager_silences_maintenance_errors_total")
 
 	data.SendMaxOfGaugesPerUser(out, m.configHashValue, "alertmanager_config_hash")