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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5881) Fix skip() of the short-circuit local reader (legacy).
Date Wed, 05 Feb 2014 17:40:10 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5881?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13892339#comment-13892339

Daryn Sharp commented on HDFS-5881:

Thinking about it further, this really should a hard exception.  In this particular case,
the client happens to recover on "accident" from the bad seek logic when it falls over to
another DN.  However I could envision future scenarios where a logic error causes it to seek
to the wrong location and _not_ fail.

> Fix skip() of the short-circuit local reader (legacy).
> ------------------------------------------------------
>                 Key: HDFS-5881
>                 URL: https://issues.apache.org/jira/browse/HDFS-5881
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.23.10
>            Reporter: Kihwal Lee
>            Assignee: Kihwal Lee
>            Priority: Critical
>         Attachments: HDFS-5881.branch-0.23.patch
> It looks like a bug in skip() was introduced by HDFS-2356 and got fixed as a part of
HDFS-2834, which is an API change JIRA.  This bug causes to skip more (as many as the new
offsetFromChunkBoundary) data in certain cases.
> It is only for branch-0.23.

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