AbnormalControllerState warning for cluster-kafka
Issue
- After upgrading Apache Kafka operator from version 2.8.0 to 2.9.0, cluster started receiving the following alert:
[1] Firing
Labels
alertname = AbnormalControllerState
namespace = abc-amqstreams
severity = warning
strimzi_io_name = abc-cluster-prod-kafka
Annotations
description = There are 0 active controllers in the cluster
summary = Kafka abnormal controller state
Environment
- Red Hat OpenShift Container Platform (RHOCP)
- 4
- AMQ streams
- 2.9.0
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