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https://issues.apache.org/jira/browse/HDFS-17149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17752303#comment-17752303
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farmmamba commented on HDFS-17149:
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[~hexiaoqiao] Sir, thanks a lot for pointing that. I have read the comments in
HDFS-15079 and i think current issue is different from HDFS-15079.
The parameter clientMachine in FSNamesystem#sortLocatedBlocks method is
router's ip address which should be actual client ip i think.
> getBlockLocations RPC should use actual client ip to compute network distance
> when using RBF.
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-17149
> URL: https://issues.apache.org/jira/browse/HDFS-17149
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namanode
> Affects Versions: 3.4.0
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
>
> Please correct me if i understand wrongly. Thanks.
> Currently, when a getBlockLocations RPC forwards to namenode via router.
> NameNode will use router ip address as client machine to compute network
> distance against block's locations. See FSNamesystem#sortLocatedBlocks method
> for more detailed information.
> I think this compute method is not correct and should use actual client ip.
>
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