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From "Jay Booth (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6196) sync(0); next() breaks SequenceFile
Date Tue, 01 Sep 2009 01:49:32 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jay Booth updated HADOOP-6196:
------------------------------

    Attachment: hadoop-6196-multipatch.txt

I had an idea for the issue of needing JVM restart to duplicate the bug reliably, if I define
5 test cases calling a common method in the same file, it'll launch in a new JVM each time
under Ant, right?  I didn't see a way to run just 1 test under ant and the tests take all
day to run on my machine, can anyone confirm?

Anyways, here's a new patch that attempts to run the test 5 times in different JVM instances.

> sync(0); next() breaks SequenceFile
> -----------------------------------
>
>                 Key: HADOOP-6196
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6196
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Jay Booth
>         Attachments: hadoop-6196-multipatch.txt, sync-bug.patch
>
>
> Currently, the end of the SequenceFile header is a sync block that isn't prefaced with
SYNC_ESCAPE.  This means that sync(0) followed by next() fails.  Patch w/ test attached, bumps
VERSION from 6 to 7.

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