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https://issues.apache.org/jira/browse/HDFS-14979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16973648#comment-16973648
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Hudson commented on HDFS-14979:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #17638 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/17638/])
HDFS-14979 Allow Balancer to submit getBlocks calls to Observer Nodes (xkrogen:
rev 586defe7113ed246ed0275bb3833882a3d873d70)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/protocol/NamenodeProtocol.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/balancer/TestBalancerWithHANameNodes.java
> [Observer Node] Balancer should submit getBlocks to Observer Node when
> possible
> -------------------------------------------------------------------------------
>
> Key: HDFS-14979
> URL: https://issues.apache.org/jira/browse/HDFS-14979
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: balancer & mover, hdfs
> Reporter: Erik Krogen
> Assignee: Erik Krogen
> Priority: Major
> Attachments: HDFS-14979.000.patch
>
>
> In HDFS-14162, we made it so that the Balancer could function when
> {{ObserverReadProxyProvider}} was in use. However, the Balancer would still
> read from the active NameNode, because {{getBlocks}} wasn't annotated as
> {{@ReadOnly}}. This task is to enable the Balancer to actually read from the
> Observer Node to alleviate load from the active NameNode.
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