Altinity/clickhouse-operator

Issues somebody may already be working on are listed last. List everything by date

• Counter metrics are missing the conventional _total suffix

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  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  Altinity/clickhouse-operator#2093 · Opened Oct 5, 2026

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• [Regression / Discussion] Loss of hot-reloaded password rotation after removal of k8s_secret_* in 0.27.4

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  planned for review

  Difficulty 5/5 Over a week Newbie friendliness 38/100

  Altinity/clickhouse-operator#2092 · 1 comment · 1 assignee · Opened Oct 4, 2026

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• Backport crdHook `imagePullSecrets` support to 0.25.x

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  Difficulty 3/5 1-2 days Newbie friendliness 68/100

  Altinity/clickhouse-operator#2089 · Opened Sep 30, 2026

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• Per-host status writes rewrite the full CHI .status, causing repeated update conflicts under reconcile concurrency

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  Difficulty 5/5 Over a week Newbie friendliness 45/100

  Altinity/clickhouse-operator#2064 · 3 comments · Opened Aug 13, 2026

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• buildCR issues one uncached StatefulSet GET per host (twice per reconcile) instead of a single List/cache

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  big deployment planned for review

  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  Altinity/clickhouse-operator#2063 · Opened Aug 13, 2026

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• Host deletion failures cannot propagate: operator removes the CHI finalizer unconditionally, orphaning PVCs

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  Difficulty 5/5 Over a week Newbie friendliness 35/100

  Altinity/clickhouse-operator#2056 · Opened Aug 4, 2026

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• Operator force-restarts a host that is still starting up: SYSTEM SHUTDOWN fails, scale-down fallback SIGTERMs it mid-load, and the aborted pass repeats forever

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  Difficulty 4/5 3-5 days Newbie friendliness 58/100

  Altinity/clickhouse-operator#2053 · Opened Jul 30, 2026

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• Operator throttles itself at scale with >400 CHI pods — reconcile concurrency and the K8s client rate limiter aren't linked

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  big deployment planned for review research required

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#2045 · 1 comment · Opened Jul 23, 2026

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• ClickHouseKeeperInstallation stuck at status: InProgress despite healthy 3-node quorum (operator 0.27.0)

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  Keeper

  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  Altinity/clickhouse-operator#2035 · 5 comments · Opened Jul 12, 2026

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• Clickhouse cluster creation fails with setcap cap_ipc_lock=+ep /usr/bin/clickhouse error in OpenShift

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#2027 · 3 comments · Opened Jul 2, 2026

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• Feature request: register pprof endpoint for profiling usage

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#2016 · Opened Jun 30, 2026

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• Add CHI-scope lifecycle hooks for reconcile transitions

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  Difficulty 5/5 Over a week Newbie friendliness 45/100

  Altinity/clickhouse-operator#2012 · 2 reactions · Opened Jun 24, 2026

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• ClickHouseOperatorConfiguration watch.namespaces.include is overwritten by env WATCH_NAMESPACE in OLM installation

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  Difficulty 3/5 1-2 days Newbie friendliness 68/100

  Altinity/clickhouse-operator#2008 · 5 comments · Opened Jun 15, 2026

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• Support custom labels on Pods created by clickhouseinstallations

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  Difficulty 4/5 3-5 days Newbie friendliness 55/100

  Altinity/clickhouse-operator#1999 · 1 comment · Opened May 29, 2026

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• When operator pod crashes or it is restarted it restarts the chi pods

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1987 · 5 comments · Opened May 20, 2026

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• Schema Skew Issue

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  Altinity/clickhouse-operator#1986 · 1 comment · Opened May 19, 2026

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• External operators can't import v1 API types as types and merge logic live in the same package as busines logic

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  planned

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1985 · 1 reaction · Opened May 18, 2026

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• Annotation for current CHK quorum leader

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#1983 · 2 comments · Opened May 9, 2026

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• Operator should add graceful shutdown to the pods

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#1979 · 5 comments · 2 reactions · Opened May 6, 2026

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• Operator stalls after Velero restore; CHI stuck InProgress until operator pod restart — DeltaFIFO “slow event handlers” / high queue depth

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  Difficulty 4/5 3-5 days Newbie friendliness 42/100

  Altinity/clickhouse-operator#1969 · Opened Apr 24, 2026

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• ClickHouseInstallation user settings support for auth_methods

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  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  Altinity/clickhouse-operator#1958 · 1 comment · Opened Apr 16, 2026

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• SYSTEM DROP REPLICA being ran from an empty replica if `0-0` is being recovered from its replica

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  Difficulty 4/5 3-5 days Newbie friendliness 58/100

  Altinity/clickhouse-operator#1954 · Opened Apr 10, 2026

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• The replicas are dropped when adding new disks into a existing JBOD volume

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1946 · 7 comments · Opened Mar 24, 2026

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• [Request] Add support for resources on the clickhouse-logs container

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  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  Altinity/clickhouse-operator#1944 · 2 comments · Opened Mar 19, 2026

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• SYSTEM DROP REPLICA fails during replica scale-down due to no retry — stale ZK metadata left behind

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  Altinity/clickhouse-operator#1943 · 2 comments · Opened Mar 19, 2026

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• Bug: `SYSTEM DROP DATABASE REPLICA` uses wrong shard identifier during scale-down of Replicated database with custom shard/replica names

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  Difficulty 3/5 1-2 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#1936 · 2 comments · 1 reaction · Opened Mar 3, 2026

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• After Restarting keeper pods, all 3 pods go into fail state

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  Keeper

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1935 · 4 comments · Opened Mar 3, 2026

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• REPLICA_ALREADY_EXISTS due to hardcoded UUID in the replicas

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1932 · 2 reactions · Opened Feb 26, 2026

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• ZooKeeper entries not cleaned up when a shard is removed

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  bug

  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#1927 · Opened Feb 18, 2026

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• CHI StatfulSets deleted after reconciliation

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  fixed

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1907 · 7 comments · 1 reaction · Opened Jan 14, 2026

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• Operator could not create Keeper Pods

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  Difficulty 4/5 3-5 days Newbie friendliness 38/100

  Altinity/clickhouse-operator#1905 · 25 comments · 1 reaction · Opened Jan 14, 2026

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• Infinite Reconciliation Loop Due to ActionPlan False Positive on Resource Quantity String Representation

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  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1904 · 1 comment · Opened Jan 12, 2026

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• 🐞 Fix: ClickHouse Operator drops container-level securityContext

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  Difficulty 3/5 1-2 days Newbie friendliness 55/100

  Altinity/clickhouse-operator#1898 · 9 comments · Opened Dec 30, 2025

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• Add lease system, multiple replicas and pdb

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  Difficulty 5/5 Over a week Newbie friendliness 20/100

  Altinity/clickhouse-operator#1887 · 1 comment · Opened Dec 12, 2025

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• Grafana Dashboards not being installed as expected

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  Difficulty 3/5 1-2 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1875 · 2 comments · Opened Nov 29, 2025

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• Large Cluster Configmap Limits

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  planned for review research required

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  Altinity/clickhouse-operator#1874 · 1 comment · Opened Nov 27, 2025

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• Operator normalizes single-element grant arrays to strings, causing Helm upgrade conflicts

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  Difficulty 4/5 3-5 days Newbie friendliness 48/100

  Altinity/clickhouse-operator#1870 · Opened Nov 23, 2025

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• Intermittent hang at clickhouse extract-from-config on NFS-backed storage (v25.8)

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1857 · 8 comments · Opened Nov 6, 2025

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• Maintenance & Failover

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1853 · 1 comment · Opened Oct 24, 2025

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• Long wait for PVC for Keeper to be created

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1843 · 1 comment · Opened Oct 7, 2025

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• Service and ServiceMonitor target unused exporter port (8888)

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1831 · 5 comments · Opened Sep 29, 2025

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• HTTP requests fail if password contains reserved characters

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  possible bug research required

  Difficulty 3/5 1-2 days Newbie friendliness 42/100

  Altinity/clickhouse-operator#1822 · Opened Sep 23, 2025

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• TLS Connection Issue: Unable to Establish Secure Connection Between ClickHouse Operator and ClickHouse Keeper

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  Difficulty 4/5 3-5 days Newbie friendliness 32/100

  Altinity/clickhouse-operator#1813 · 5 comments · 3 reactions · Opened Sep 15, 2025

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• hostPort always reset to 0 by ContainerEnsurePortByName()

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1812 · Opened Sep 11, 2025

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• CHK StatefulSets cannot change storage classes due to missing volume claims

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  Keeper

  Difficulty 4/5 3-5 days Newbie friendliness 45/100

  Altinity/clickhouse-operator#1808 · 3 comments · Opened Sep 9, 2025

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• keeper PersistentVolumeClaims remain OutOfSync (ArgoCD)

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1799 · 1 comment · 2 reactions · Opened Aug 24, 2025

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• Clickhouse Backup Plugin

  May be free again @alex-zaitsev claimed this 307 days ago, and no pull request is open. Open

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  hold ongoing discussion

  Altinity/clickhouse-operator#1795 · 2 comments · 4 reactions · 1 assignee · Opened Aug 19, 2025

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• Configure Metrics Exporter Verbosity via Deployment Variables

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  enhancement ongoing discussion

  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Altinity/clickhouse-operator#1793 · 1 comment · 1 reaction · Opened Aug 14, 2025

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• Clickhouse Operator Plugin Architecture

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  ongoing discussion

  Difficulty 5/5 Over a week Newbie friendliness 25/100

  Altinity/clickhouse-operator#1792 · 3 reactions · Opened Aug 14, 2025

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• Liveness probe failed

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  Altinity/clickhouse-operator#1785 · 7 comments · Opened Aug 7, 2025

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