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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-1381) The distance between sync blocks in SequenceFiles should be configurable rather than hard coded to 2000 bytes
Date Mon, 25 Jun 2012 23:15:43 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-1381:
----------------------------------

    Status: Open  (was: Patch Available)

The comment is wrong. You've changed the default to 20 * 100k or 2MB. Actually, I'd prefer
a smaller default of 0.5 to 1 MB. In any case, the comments should match the code. 

Thanks for getting back to this one.
                
> 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: 2.0.0-alpha
>            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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