Issues

• Support OTLP/grpc ingestion

  cortexproject/cortex#7872 · Filter by author friedrichg opened on Oct 1, 2026

• Query fuzz tests: remove the #7550 duplicate-series error workaround once Prometheus >= v3.15.0 is vendored

  cortexproject/cortex#7862 · Filter by author sandy2008 opened on Sep 25, 2026

• Flaky test: TestVerticalShardingFuzz — or vector(...) returns the vector() fallback instead of the LHS when vertical sharding is enabled

  component/query-frontendtype/bugtype/flaky-test
  cortexproject/cortex#7804 · Filter by author CharlieTLe opened on Aug 21, 2026

• MakeIngesterClient leaks grpc.ClientConn and goroutines on failure

  component/distributorcomponent/ingestertype/bug
  cortexproject/cortex#7759 · Filter by author alex-berger opened on Aug 12, 2026

• Noticed Cortex Query Timeout and Data Inconsistency Issues

  component/queriertype/bug
  cortexproject/cortex#7733 · Filter by author rmhaisane opened on Jul 27, 2026
  12

• detachChunksFromBuffer copies chunk data that Unmarshal already allocated separately (#7670)

  component/queriertype/bug
  cortexproject/cortex#7732 · Filter by author sandy2008 opened on Jul 27, 2026

• Querier bucket-scan blocks finder: per-tenant metas maps grow unboundedly and keep serving deleted tenants while scans keep partially failing

  component/queriertype/bugtype/production
  cortexproject/cortex#7728 · Filter by author sandy2008 opened on Jul 27, 2026

• Querier bucket-scan blocks finder and store-gateway wipe each other's meta-syncer cache in single-binary mode

  component/queriercomponent/store-gatewaytype/bug
  cortexproject/cortex#7727 · Filter by author sandy2008 opened on Jul 27, 2026

• Flaky test: TestPartitionCompactor_DeleteLocalSyncFiles (arm64) — data race in thanos extprom.TxGaugeVec via concurrent MetaFetcher.Fetch

  component/compactortype/flaky-test
  cortexproject/cortex#7707 · Filter by author yeya24 opened on Jul 20, 2026

• Some logs ignore the JSON log format setting

  type/bug
  cortexproject/cortex#7697 · Filter by author jakubgs opened on Jul 17, 2026

• Flaky test: TestPartitionCompactor_ShouldCompactOnlyUsersOwnedByTheInstanceOnShardingEnabledAndMultipleInstancesRunning — 60s CompactionRunsCompleted poll times out

  component/compactortype/flaky-test
  cortexproject/cortex#7607 · Filter by author sandy2008 opened on Jun 8, 2026

• Flaky test: TestPrometheusMetrics_IncrementedCorrectly (pkg/util/queryeviction) — race between async eviction and evictionsTotal assertion

  component/queriertype/flaky-test
  cortexproject/cortex#7604 · Filter by author sandy2008 opened on Jun 8, 2026

• Scheduler: FragmentTable starts a periodicCleanup goroutine/ticker that can never be stopped (no Close/Stop)

  type/bug
  cortexproject/cortex#7596 · Filter by author sandy2008 opened on Jun 7, 2026
  

• Ruler: per-tenant notifier and its service-discovery goroutines leak when managerFactory returns an error

  component/rulestype/bug
  cortexproject/cortex#7595 · Filter by author sandy2008 opened on Jun 7, 2026
  1

• Add Alibaba Cloud OSS storage backend

  type/feature
  cortexproject/cortex#7594 · Filter by author CharlieTLe opened on Jun 5, 2026

• Add Tencent Cloud COS storage backend

  component/alertmanagercomponent/rulesstorage/blockstype/feature
  cortexproject/cortex#7592 · Filter by author CharlieTLe opened on Jun 5, 2026

• Add Baidu Cloud BOS storage backend

  cortexproject/cortex#7591 · Filter by author CharlieTLe opened on Jun 5, 2026

• Add Huawei Cloud OBS storage backend

  cortexproject/cortex#7590 · Filter by author CharlieTLe opened on Jun 5, 2026

• TestGRPCCompression doesn't guarantee queries hit the store-gateway path the compression flag applies to

  component/store-gatewaytype/flaky-test
  cortexproject/cortex#7583 · Filter by author friedrichg opened on May 31, 2026

• V04 gzip-cap regression test in pkg/util/http_test.go passes whether or not the new decompressed-size cap is in place

  cortexproject/cortex#7581 · Filter by author friedrichg opened on May 31, 2026

• Stream-push security test in integration/ingester_stream_push_test.go is effectively a no-op when signing fails

  type/bugtype/securitytype/tests
  cortexproject/cortex#7580 · Filter by author friedrichg opened on May 31, 2026
  1

• Flaky Test: TestGetRulesFromBackup

  component/rulestype/flaky-testtype/tests
  cortexproject/cortex#7577 · Filter by author sandy2008 opened on May 30, 2026

• Querier: store-gateway Series stream resources released only via shared errgroup context (make per-stream cleanup explicit)

  component/queriercomponent/store-gatewaytype/production
  cortexproject/cortex#7575 · Filter by author sandy2008 opened on May 30, 2026

• Ingester: Add owned series tracking to exclude stale data from per-ingester limit calculations

  component/ingestercomponent/ringtype/feature
  cortexproject/cortex#7509 · Filter by author danielblando opened on May 11, 2026

• Implement GET /api/v1/features endpoint

  difficulty/easytype/feature
  cortexproject/cortex#7467 · Filter by author friedrichg opened on Apr 30, 2026
  2