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https://issues.apache.org/jira/browse/HADOOP-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13156857#comment-13156857
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Todd Lipcon commented on HADOOP-1381:
-------------------------------------

hm, if you set it to 0, it will write a sync marker between every record?

Don't worry about renaming the variable, seems like too much effort for little 
gain.
                
> 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
>             Fix For: 0.24.0
>
>         Attachments: HADOOP-1381.r1.diff, HADOOP-1381.r2.diff, 
> HADOOP-1381.r3.diff, HADOOP-1381.r4.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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