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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-1381) The distance between sync blocks in SequenceFiles should be configurable rather than hard coded to 2000 bytes
Date Mon, 28 May 2012 05:18:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13284290#comment-13284290
] 

Harsh J commented on HADOOP-1381:
---------------------------------

I do think this would be useful to be able to control, especially given that use of sequence
files is already prevalent.
                
> The distance between sync blocks in SequenceFiles should be configurable rather than
hard coded to 2000 bytes
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1381
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1381
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.22.0
>            Reporter: Owen O'Malley
>            Assignee: Harsh J
>         Attachments: HADOOP-1381.r1.diff, HADOOP-1381.r2.diff, HADOOP-1381.r3.diff, HADOOP-1381.r4.diff,
HADOOP-1381.r5.diff, HADOOP-1381.r5.diff
>
>
> Currently SequenceFiles put in sync blocks every 2000 bytes. It would be much better
if it was configurable with a much higher default (1mb or so?).

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