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https://issues.apache.org/jira/browse/HDFS-4465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13700052#comment-13700052
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Hudson commented on HDFS-4465:
------------------------------
Integrated in Hadoop-Hdfs-trunk #1450 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/1450/])
HDFS-4465. Optimize datanode ReplicasMap and ReplicaInfo. Contributed by
Aaron T. Myers. (Revision 1499659)
Result = FAILURE
atm : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1499659
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/dev-support/findbugsExcludeFile.xml
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockPoolSliceScanner.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/ReplicaInfo.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDatanodeBlockScanner.java
> Optimize datanode ReplicasMap and ReplicaInfo
> ---------------------------------------------
>
> Key: HDFS-4465
> URL: https://issues.apache.org/jira/browse/HDFS-4465
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.0.5-alpha
> Reporter: Suresh Srinivas
> Assignee: Aaron T. Myers
> Fix For: 2.1.0-beta
>
> Attachments: dn-memory-improvements.patch, HDFS-4465.patch,
> HDFS-4465.patch, HDFS-4465.patch
>
>
> In Hadoop a lot of optimization has been done in namenode data structures to
> be memory efficient. Similar optimizations are necessary for Datanode
> process. With the growth in storage per datanode and number of blocks hosted
> on datanode, this jira intends to optimize long lived ReplicasMap and
> ReplicaInfo objects.
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