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From Íñigo Goiri (JIRA) <j...@apache.org>
Subject [jira] [Commented] (HDFS-14268) RBF: Fix the location of the DNs in getDatanodeReport()
Date Wed, 13 Feb 2019 18:33:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-14268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16767437#comment-16767437
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Íñigo Goiri commented on HDFS-14268:
------------------------------------

I believe the failed unit test comes from what we are fixing in HDFS-14226.
I'll wait for that one to be committed.

> RBF: Fix the location of the DNs in getDatanodeReport()
> -------------------------------------------------------
>
>                 Key: HDFS-14268
>                 URL: https://issues.apache.org/jira/browse/HDFS-14268
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Íñigo Goiri
>            Assignee: Íñigo Goiri
>            Priority: Major
>         Attachments: HDFS-14268-HDFS-13891.000.patch, HDFS-14268-HDFS-13891.001.patch,
HDFS-14268-HDFS-13891.002.patch
>
>
> When getting all the DNs in the federation, the Router queries each of the subclusters
and aggregates them assigning the subcluster id to the location. This query uses a {{HashSet}}
which provides a "random" order for the results.



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