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https://issues.apache.org/jira/browse/HDFS-1081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12890488#action_12890488
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Hudson commented on HDFS-1081:
------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #347 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/347/])
HDFS-1081. Performance regression in
DistributedFileSystem::getFileBlockLocations in secure systems.
> Performance regression in DistributedFileSystem::getFileBlockLocations in
> secure systems
> ----------------------------------------------------------------------------------------
>
> Key: HDFS-1081
> URL: https://issues.apache.org/jira/browse/HDFS-1081
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.22.0
> Reporter: Jakob Homan
> Assignee: Jakob Homan
> Fix For: 0.22.0
>
> Attachments: bm1081.scala, HADOOP-1081-Y20-1.patch,
> HADOOP-1081-Y20-2.patch, HDFS-1081-trunk.patch, HDFS-1081-trunk.patch,
> results.xlsx
>
>
> We've seen a significant decrease in the performance of
> DistributedFileSystem::getFileBlockLocations() with security turned on Y20.
> This JIRA is for correcting and tracking it both on Y20 and trunk.
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