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Posted to common-dev@hadoop.apache.org by "Christian Kunz (JIRA)" <ji...@apache.org> on 2008/11/11 02:19:44 UTC

[jira] Commented: (HADOOP-4629) libhdfs sets read return code to 0 when hadoop returns < 0

    [ https://issues.apache.org/jira/browse/HADOOP-4629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12646431#action_12646431 ] 

Christian Kunz commented on HADOOP-4629:
----------------------------------------

-1
I am not in favor of this patch. I believe the original code tried to mimic libc behavior returning 0 bytes at EOF. This patch will probably break a lot of existing clients.

> libhdfs sets read return code to 0 when hadoop returns < 0 
> -----------------------------------------------------------
>
>                 Key: HADOOP-4629
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4629
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: libhdfs
>    Affects Versions: 0.19.0, 0.20.0
>            Reporter: Pete Wyckoff
>            Assignee: Pete Wyckoff
>             Fix For: 0.20.0
>
>         Attachments: HADOOP-4629.txt
>
>
> libhdfs is changing the return code to 0 whenever hadoop returns < 0 on a read.  This means EOF cannot be determined correctly since it should have a return code of -1.

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