Drawxy created KAFKA-16218: ------------------------------ Summary: Partition reassignment can't complete if any target replica is out-of-sync Key: KAFKA-16218 URL: https://issues.apache.org/jira/browse/KAFKA-16218 Project: Kafka Issue Type: Bug Reporter: Drawxy
Assumed that there were 4 brokers (1001,2001,3001,4001) and a topic partition _foo-0_ (replicas[1001,2001,3001], isr[1001,3001]). The replica 2001 can't catch up and become out-of-sync due to some issue. If we launch a partition reassinment for this _foo-0_ (the target replica list is [1001,2001,4001]), the partition reassignment can't complete even if the adding replica 4001 already catches up. At that time, the partition state would be replicas[1001,2001,4001,3001] isr[1001,3001,4001]. The out-of-sync replica 2001 shouldn't make the partition reassignment stuck. -- This message was sent by Atlassian Jira (v8.20.10#820010)