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https://issues.apache.org/jira/browse/HDFS-14268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16766591#comment-16766591
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Íñigo Goiri commented on HDFS-14268:
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In [^HDFS-14268-HDFS-13891.000.patch], we have the DNs not joining the two
subclusters anymore.
For this reason, EC is a little tight.
I increased the number of DNs in [^HDFS-14268-HDFS-13891.001.patch].
> 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
>
>
> 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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