3 docs tagged with "kafka"

When a NGINX upstream becomes unreachable or its DNS entry disappears, NGINX requests begin to fail.

When the configured replication factor for a Kafka topic is greater than the actual number of brokers in the cluster, Kafka repeatedly fails to assign partitions and logs replication\-related errors. This results in persistent warnings or an `InvalidReplicationFactorException` when the broker tries to create internal or user\-defined topics.

Critical Kafka cluster degradation detected\: Multiple partitions have lost replicas due to broker failure,