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https://issues.apache.org/jira/browse/HDFS-12778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16293600#comment-16293600
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Hudson commented on HDFS-12778:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #13391 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/13391/])
HDFS-12778. [READ] Report multiple locations for PROVIDED blocks (cdouglas: rev
3d3be87e301d9f8ab1a220bc5dbeae0f032c5a86)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/ProvidedStorageMap.java
* (edit)
hadoop-tools/hadoop-fs2img/src/main/java/org/apache/hadoop/hdfs/server/namenode/FixedBlockResolver.java
* (edit)
hadoop-tools/hadoop-fs2img/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeProvidedImplementation.java
> [READ] Report multiple locations for PROVIDED blocks
> ----------------------------------------------------
>
> Key: HDFS-12778
> URL: https://issues.apache.org/jira/browse/HDFS-12778
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Virajith Jalaparti
> Assignee: Virajith Jalaparti
> Attachments: HDFS-12778-HDFS-9806.001.patch,
> HDFS-12778-HDFS-9806.002.patch, HDFS-12778-HDFS-9806.003.patch
>
>
> On {{getBlockLocations}}, only one Datanode is returned as the location for
> all PROVIDED blocks. This can hurt the performance of applications which
> typically 3 locations per block. We need to return multiple Datanodes for
> each PROVIDED block for better application performance/resilience.
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