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https://issues.apache.org/jira/browse/HDFS-10821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yiqun Lin updated HDFS-10821:
-----------------------------
Status: Patch Available (was: Open)
Attach a initial patch. The documentation has been updated in the patch as
well. The test output in my local:
{code}
Processing report command
Reporting volume information for DataNode(s)
'e05ade8e-fb28-42cf-9aa9-43e564c0ec99,38714337-84fb-4e35-9ea3-0bb47d6da700'.
127.0.0.1[127.0.0.1:54994] - <38714337-84fb-4e35-9ea3-0bb47d6da700>: 2 volumes
with node data density 0.00.
[DISK:
volume-/Users/lyq/Documents/work-project/hadoop-trunk/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data3]
- 0.00 used: 4096/249821663232, 1.00 free: 249821659136/249821663232,
isFailed: False, isReadOnly: False, isSkip: False, isTransient: False.
[DISK:
volume-/Users/lyq/Documents/work-project/hadoop-trunk/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data4]
- 0.00 used: 4096/249821663232, 1.00 free: 249821659136/249821663232,
isFailed: False, isReadOnly: False, isSkip: False, isTransient: False.
127.0.0.1[127.0.0.1:54989] - <e05ade8e-fb28-42cf-9aa9-43e564c0ec99>: 2 volumes
with node data density 0.00.
[DISK:
volume-/Users/lyq/Documents/work-project/hadoop-trunk/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data1]
- 0.00 used: 4096/249821663232, 1.00 free: 249821659136/249821663232,
isFailed: False, isReadOnly: False, isSkip: False, isTransient: False.
[DISK:
volume-/Users/lyq/Documents/work-project/hadoop-trunk/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/dfs/data/data2]
- 0.00 used: 4096/249821663232, 1.00 free: 249821659136/249821663232,
isFailed: False, isReadOnly: False, isSkip: False, isTransient: False.
{code}
> 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
> Fix For: 2.9.0
>
>
> 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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