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Reconcile of large CHIs is much slower since 0.27: ActionPlan is re-rendered on every status update

big deployment

planned for reviewThis feature is planned for reviewThis feature is planned for review

Status: Open.

#2066 In Altinity/clickhouse-operator;

· erikasb opened on Aug 18, 2026

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

Status: Open.

#2064 In Altinity/clickhouse-operator;

· atsarevskiy opened on Aug 13, 2026

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

big deployment

planned for reviewThis feature is planned for reviewThis feature is planned for review

Status: Open.

#2063 In Altinity/clickhouse-operator;

· atsarevskiy opened on Aug 13, 2026

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

Status: Open.

#2056 In Altinity/clickhouse-operator;

· somanchi004-code opened on Aug 4, 2026

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

Status: Open.

#2053 In Altinity/clickhouse-operator;

· ku524 opened on Jul 30, 2026

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

big deployment

planned for reviewThis feature is planned for reviewThis feature is planned for review

research requiredThis issue requires additional researchThis issue requires additional research

Status: Open.

#2045 In Altinity/clickhouse-operator;

· atsarevskiy opened on Jul 23, 2026

CHK controller logs object meta as "unknown" (announcer M() missing ClickHouseKeeperInstallation case)

Status: Open.

#2036 In Altinity/clickhouse-operator;

· KyriosGN0 opened on Jul 12, 2026

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

Status: Open.

#2035 In Altinity/clickhouse-operator;

· KyriosGN0 opened on Jul 12, 2026

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

Status: Open.

#2027 In Altinity/clickhouse-operator;

· shahtab opened on Jul 2, 2026

Bug: table migration failure doesn't return error

Status: Open.

#2021 In Altinity/clickhouse-operator;

· dentiny opened on Jun 30, 2026

Feature request: register pprof endpoint for profiling usage

Status: Open.

#2016 In Altinity/clickhouse-operator;

· dentiny opened on Jun 30, 2026

Add CHI-scope lifecycle hooks for reconcile transitions

Status: Open.

#2012 In Altinity/clickhouse-operator;

· lesandie opened on Jun 24, 2026