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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11374) Skip FSync in CreateEditsLog to speed up edit log generation
Date Fri, 27 Jan 2017 01:51:24 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15840832#comment-15840832
] 

Hudson commented on HDFS-11374:
-------------------------------

SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #11182 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/11182/])
HDFS-11374. Skip FSync in CreateEditsLog to speed up edit log (arp: rev 7bc333ad4156fd2a9f946103e4e1cf917fae4c3a)
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/CreateEditsLog.java


> Skip FSync in CreateEditsLog to speed up edit log generation
> ------------------------------------------------------------
>
>                 Key: HDFS-11374
>                 URL: https://issues.apache.org/jira/browse/HDFS-11374
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>            Priority: Minor
>             Fix For: 2.9.0
>
>         Attachments: HDFS-11374.000.patch
>
>
> We can make generation of edit logs faster by skipping Fsync in CreateEditLogs. This
can be done be setting _shouldSkipFsyncForTesting_ to true in _EditLogFileOutputStream_



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