Hongbing Wang created HDFS-15641:
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Summary: DataNode could meet deadlock if invoke refreshNameNode
Key: HDFS-15641
URL: https://issues.apache.org/jira/browse/HDFS-15641
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 3.2.0
Reporter: Hongbing Wang
Assignee: Hongbing Wang
DataNode could meet deadlock when invoke `hdfs dfsadmin -refreshNamenodes
hostname:50020` to register a new namespace in federation env.
The jstack is shown in RefreshNameNode_DeadLock.jstack.
The specific process is shown in Figure RefreshNameNode_DeadLock.png
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