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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