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Posted to jira@kafka.apache.org by "jacky (Jira)" <ji...@apache.org> on 2021/04/18 06:01:00 UTC

[jira] [Created] (KAFKA-12682) Kraft MetadataPartitionsBuilder _localChanged and _localRemoved out of order

jacky created KAFKA-12682:
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             Summary: Kraft MetadataPartitionsBuilder _localChanged and _localRemoved out of order 
                 Key: KAFKA-12682
                 URL: https://issues.apache.org/jira/browse/KAFKA-12682
             Project: Kafka
          Issue Type: Bug
          Components: core
    Affects Versions: 2.8.0
            Reporter: jacky


In version 2.8, MetadataPartitionsBuilder has the field _localChanged and _localRemoved which record the change and delete partition, but we always process _localChanged partitions, and then _localRemoved in the kafka.server.RaftReplicaManager#handleMetadataRecords, not respect the original order, for example, 
1. migrate the partition p1 from b0 to b1;
2. change the leader of p1 
3.migrate p1 from b1 to b0
and the _localRemoved will delete the p1 at last.



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