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https://issues.apache.org/jira/browse/HADOOP-8144?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252080#comment-13252080
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Eli Collins commented on HADOOP-8144:
-------------------------------------
Hey Junping,
Thanks for contributing! Looks like your test in HDFS-3258 found another bug,
it yields in order 1,5,3 even with your patch (which I think is correct). Mind
taking a look?
> pseudoSortByDistance in NetworkTopology doesn't work properly if no local
> node and first node is local rack node
> ----------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8144
> URL: https://issues.apache.org/jira/browse/HADOOP-8144
> Project: Hadoop Common
> Issue Type: Bug
> Components: io
> Affects Versions: 1.0.0, 0.23.0
> Reporter: Junping Du
> Assignee: Junping Du
> Priority: Minor
> Labels: patch
> Attachments: HADOOP-8144-1.patch, HADOOP-8144-v2.patch,
> hadoop-8144.txt, hadoop-8144.txt
>
>
> pseudoSortByDistance in NetworkTopology.java should sort nodes according to
> its distance with reader as local node, local rack node, ...
> But if there is no local node with reader in nodes and the first node is
> local rack node with reader, then it will put a random node at position 0.
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