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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11374) Skip FSync in CreateEditsLog to speed up edit log generation
Date Fri, 27 Jan 2017 00:26:24 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arpit Agarwal updated HDFS-11374:
---------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 2.9.0
           Status: Resolved  (was: Patch Available)

Pushed to trunk and branch-2.

> 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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