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https://issues.apache.org/jira/browse/HDFS-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13875066#comment-13875066
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Hudson commented on HDFS-5704:
------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #5019 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/5019/])
Move HDFS-5704 and HDFS-5777 to the correct section in CHANGES.txt (jing9:
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1559210)
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
> Change OP_UPDATE_BLOCKS with a new OP_ADD_BLOCK
> ------------------------------------------------
>
> Key: HDFS-5704
> URL: https://issues.apache.org/jira/browse/HDFS-5704
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Suresh Srinivas
> Assignee: Jing Zhao
> Fix For: 3.0.0
>
> Attachments: HDFS-5704-branch2.patch, HDFS-5704.000.patch,
> HDFS-5704.001.patch, HDFS-5704.002.patch, HDFS-5704.003.patch, editsStored,
> editsStored
>
>
> Currently every time a block a allocated, the entire list of blocks are
> written in the editlog in OP_UPDATE_BLOCKS operation. This has n^2 growth
> issue. The total size of editlog records for a file with large number of
> blocks could be huge.
> The goal of this jira is discuss adding a different editlog record that only
> records allocation of block and not the entire block list, on every block
> allocation.
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