Zhang Wei created HDFS-8500:
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Summary: Improve refreshNode in DFSAdmin to support hdfs federation
Key: HDFS-8500
URL: https://issues.apache.org/jira/browse/HDFS-8500
Project: Hadoop HDFS
Issue Type: Improvement
Components: federation
Affects Versions: 2.7.0
Reporter: Zhang Wei
Priority: Minor
In hdfs federated cluster, we find the dfsadmin command "hdfs dfsadmin
-refreshNodes" can only refresh the nameservice (or namenode) which configured
in fs.defaultFS. The other nameservices configured in hdfs-site.xml can't be
refreshed unless changing the fs.defaultFS value and run this command again. I
think we need additional parameters as following to give a convenient way:
[-a] fresh all namenodes configured in hdfs-site.xml.
[-ns <nameserviceId>] specify a nameservice to refresh.
[host:ipc_port] specify a nn to refresh.
please give your opinions. Thanks!
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