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https://issues.apache.org/jira/browse/HDFS-2363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13116448#comment-13116448
]
Hudson commented on HDFS-2363:
------------------------------
Integrated in Hadoop-Mapreduce-trunk #844 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/844/])
HDFS-2363. Move datanodes size printing from FSNamesystem.metasave(..) to
BlockManager. Contributed by Uma Maheswara Rao G
szetszwo :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1176733
Files :
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockManager.java
*
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
> Move datanodes size printing to BlockManager from FSNameSystem's metasave API
> -----------------------------------------------------------------------------
>
> Key: HDFS-2363
> URL: https://issues.apache.org/jira/browse/HDFS-2363
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: 0.23.0, 0.24.0
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Priority: Minor
> Fix For: 0.23.0, 0.24.0
>
> Attachments: HDFS-2363.patch
>
>
> {code}
> final List<DatanodeDescriptor> live = new
> ArrayList<DatanodeDescriptor>();
> final List<DatanodeDescriptor> dead = new
> ArrayList<DatanodeDescriptor>();
> blockManager.getDatanodeManager().fetchDatanodes(live, dead, false);
> out.println("Live Datanodes: "+live.size());
> out.println("Dead Datanodes: "+dead.size());
> blockManager.metaSave(out);
> {code}
> Logically all the dataNode related logic can be moved to BlockManager.
> So, here metaSave API is getting the DataNodes details from blockManager to
> FsNameSystem and after printing the details again it is giving the control to
> blockManager.
> It will be good to move the DNs size printing code also to BlockManager.
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