红帽全球峰会8.3. Early access feature gates (Alpha)
Early access feature gates have not yet reached the beta stage, and are disabled by default. An early access feature gate provides an opportunity for assessment before its functionality is permanently incorporated into Streams for Apache Kafka.
The ContinueReconciliationOnManualRollingUpdateFailure feature gate has a default state of disabled.
The ContinueReconciliationOnManualRollingUpdateFailure feature gate allows the Cluster Operator to continue a reconciliation if the manual rolling update of the operands fails. It applies to the following operands that support manual rolling updates using the strimzi.io/manual-rolling-update annotation:
- ZooKeeper
- Kafka
- Kafka Connect
- Kafka MirrorMaker 2
Continuing the reconciliation after a manual rolling update failure allows the operator to recover from various situations that might prevent the update from succeeding. For example, a missing Persistent Volume Claim (PVC) or Persistent Volume (PV) might cause the manual rolling update to fail. However, the PVCs and PVs are created only in a later stage of the reconciliation. By continuing the reconciliation after this failure, the process can recreate the missing PVC or PV and recover.
The ContinueReconciliationOnManualRollingUpdateFailure feature gate is used by the Cluster Operator. It is ignored by the User and Topic Operators.
Enabling the ContinueReconciliationOnManualRollingUpdateFailure feature gate
To enable the ContinueReconciliationOnManualRollingUpdateFailure feature gate, specify +ContinueReconciliationOnManualRollingUpdateFailure in the STRIMZI_FEATURE_GATES environment variable in the Cluster Operator configuration.
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