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Posted to hdfs-issues@hadoop.apache.org by "Ye Ni (Jira)" <ji...@apache.org> on 2020/12/18 00:28:00 UTC

[jira] [Created] (HDFS-15737) Don't remove datanodes from outOfServiceNodeBlocks while checking in DatanodeAdminManager

Ye Ni created HDFS-15737:
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             Summary: Don't remove datanodes from outOfServiceNodeBlocks while checking in DatanodeAdminManager
                 Key: HDFS-15737
                 URL: https://issues.apache.org/jira/browse/HDFS-15737
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
            Reporter: Ye Ni


With CyclicIteration, remove an item while iterating causes either dead loop or ConcurrentModificationException.

This item should be removed by
{{toRemove.add(dn);}}



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