Yiqun Lin created HDFS-10821:
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Summary: DiskBalancer: Report command support with multiple nodes
Key: HDFS-10821
URL: https://issues.apache.org/jira/browse/HDFS-10821
Project: Hadoop HDFS
Issue Type: Sub-task
Components: balancer & mover
Reporter: Yiqun Lin
Assignee: Yiqun Lin
Since HDFS-10813 has committed to the trunk, then we can use {{getNodes}}
method to parse the nodes string and support multiple nodes with {{hdfs
diskbalancer}} subcommands(ex -report, -query.). In this JIRA, we are focusing
on the subcommand {{-report}}.
That means we can use command {{hdfs diskbalancer -report -node}} to print one
or one more datanodes report info.A test input command(here I use UUID to
specify one datanode):
{code}
hdfs diskbalancer -report -node
e05ade8e-fb28-42cf-9aa9-43e564c0ec99,38714337-84fb-4e35-9ea3-0bb47d6da700
{code}
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