thanos-io · saswatamcode · Jun 22, 2023 · Jun 22, 2023 · Jun 22, 2023 · Jun 22, 2023
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -397,6 +397,7 @@ The binaries published with this release are built with Go1.17.8 to avoid [CVE-2
 - [#4874](https://github.com/thanos-io/thanos/pull/4874) Query: Add `--endpoint-strict` flag to statically configure Thanos API server endpoints. It is similar to `--store-strict` but supports passing any Thanos gRPC APIs: StoreAPI, MetadataAPI, RulesAPI, TargetsAPI and ExemplarsAPI.
 - [#4868](https://github.com/thanos-io/thanos/pull/4868) Rule: Support ruleGroup limit introduced by Prometheus v2.31.0.
 - [#4897](https://github.com/thanos-io/thanos/pull/4897) Query: Add validation for querier address flags.
+- [#6466](https://github.com/thanos-io/thanos/pull/6466) Mixin (Receive): add limits alerting for configuration reload and meta-monitoring.
 
 ### Fixed
 

diff --git a/examples/alerts/alerts.md b/examples/alerts/alerts.md
@@ -530,6 +530,24 @@ rules:
   for: 3h
   labels:
     severity: critical
+- alert: ThanosReceiveLimitsConfigReloadFailure
+  annotations:
+    description: Thanos Receive {{$labels.job}} has not been able to reload the limits configuration.
+    runbook_url: https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitsconfigreloadfailure
+    summary: Thanos Receive has not been able to reload the limits configuration.
+  expr: sum by(job) (increase(thanos_receive_limits_config_reload_err_total{job=~".*thanos-receive.*"}[5m])) > 0
+  for: 5m
+  labels:
+    severity: warning
+- alert: ThanosReceiveLimitsHighMetaMonitoringQueriesFailureRate
+  annotations:
+    description: Thanos Receive {{$labels.job}} is failing for {{$value | humanize}}% of meta monitoring queries.
+    runbook_url: https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitshighmetamonitoringqueriesfailurerate
+    summary: Thanos Receive has not been able to update the number of head series.
+  expr: (sum by(job) (increase(thanos_receive_metamonitoring_failed_queries_total{job=~".*thanos-receive.*"}[5m])) / 20) * 100 > 20
+  for: 5m
+  labels:
+    severity: warning
 ```
 
 ## Replicate

diff --git a/examples/alerts/alerts.yaml b/examples/alerts/alerts.yaml
@@ -274,6 +274,24 @@ groups:
     for: 3h
     labels:
       severity: critical
+  - alert: ThanosReceiveLimitsConfigReloadFailure
+    annotations:
+      description: Thanos Receive {{$labels.job}} has not been able to reload the limits configuration.
+      runbook_url: https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitsconfigreloadfailure
+      summary: Thanos Receive has not been able to reload the limits configuration.
+    expr: sum by(job) (increase(thanos_receive_limits_config_reload_err_total{job=~".*thanos-receive.*"}[5m])) > 0
+    for: 5m
+    labels:
+      severity: warning
+  - alert: ThanosReceiveLimitsHighMetaMonitoringQueriesFailureRate
+    annotations:
+      description: Thanos Receive {{$labels.job}} is failing for {{$value | humanize}}% of meta monitoring queries.
+      runbook_url: https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitshighmetamonitoringqueriesfailurerate
+      summary: Thanos Receive has not been able to update the number of head series.
+    expr: (sum by(job) (increase(thanos_receive_metamonitoring_failed_queries_total{job=~".*thanos-receive.*"}[5m])) / 20) * 100 > 20
+    for: 5m
+    labels:
+      severity: warning
 - name: thanos-sidecar
   rules:
   - alert: ThanosSidecarBucketOperationsFailed

diff --git a/mixin/alerts/receive.libsonnet b/mixin/alerts/receive.libsonnet
@@ -5,6 +5,7 @@
     httpErrorThreshold: 5,
     ingestionThreshold: 50,
     forwardErrorThreshold: 20,
+    metaMonitoringErrorThreshold: 20,
     refreshErrorThreshold: 0,
     p99LatencyThreshold: 10,
     dimensions: std.join(', ', std.objectFields(thanos.targetGroups) + ['job']),
@@ -144,6 +145,31 @@
               severity: 'critical',
             },
           },
+          {
+            alert: 'ThanosReceiveLimitsConfigReloadFailure',
+            annotations: {
+              description: 'Thanos Receive {{$labels.job}}%s has not been able to reload the limits configuration.' % location,
+              summary: 'Thanos Receive has not been able to reload the limits configuration.',
+            },
+            expr: 'sum by(%(dimensions)s) (increase(thanos_receive_limits_config_reload_err_total{%(selector)s}[5m])) > 0' % thanos.receive,
+            'for': '5m',
+            labels: {
+              severity: 'warning',
+            },
+          },
+          {
+            alert: 'ThanosReceiveLimitsHighMetaMonitoringQueriesFailureRate',
+            annotations: {
+              description: 'Thanos Receive {{$labels.job}}%s is failing for {{$value | humanize}}%% of meta monitoring queries.' % location,
+              summary: 'Thanos Receive has not been able to update the number of head series.',
+            },
+            // Values are updated every 15s, 20 times over 5 minutes.
+            expr: '(sum by(%(dimensions)s) (increase(thanos_receive_metamonitoring_failed_queries_total{%(selector)s}[5m])) / 20) * 100 > %(metaMonitoringErrorThreshold)s' % thanos.receive,
+            'for': '5m',
+            labels: {
+              severity: 'warning',
+            },
+          },
         ],
       },
     ],

diff --git a/mixin/runbook.md b/mixin/runbook.md
@@ -63,6 +63,8 @@
 |ThanosReceiveHighHashringFileRefreshFailures|Thanos Receive is failing to refresh hasring file.|Thanos Receive {{$labels.job}} is failing to refresh hashring file, {{$value  humanize}} of attempts failed.|warning|[https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivehighhashringfilerefreshfailures](https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivehighhashringfilerefreshfailures)|
 |ThanosReceiveConfigReloadFailure|Thanos Receive has not been able to reload configuration.|Thanos Receive {{$labels.job}} has not been able to reload hashring configurations.|warning|[https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceiveconfigreloadfailure](https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceiveconfigreloadfailure)|
 |ThanosReceiveNoUpload|Thanos Receive has not uploaded latest data to object storage.|Thanos Receive {{$labels.instance}} has not uploaded latest data to object storage.|critical|[https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivenoupload](https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivenoupload)|
+|ThanosReceiveLimitsConfigReloadFailure|Thanos Receive has not been able to reload the limits configuration.|Thanos Receive {{$labels.job}} has not been able to reload the limits configuration.|warning|[https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitsconfigreloadfailure](https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitsconfigreloadfailure)|
+|ThanosReceiveLimitsHighMetaMonitoringQueriesFailureRate|Thanos Receive has not been able to update the number of head series.|Thanos Receive {{$labels.job}} is failing for {{$value  humanize}}% of meta monitoring queries.|warning|[https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitshighmetamonitoringqueriesfailurerate](https://github.com/thanos-io/thanos/tree/main/mixin/runbook.md#alert-name-thanosreceivelimitshighmetamonitoringqueriesfailurerate)|
 
 ## thanos-rule