hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Runping Qi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3041) Within a task, the value ofJobConf.getOutputPath() method is modified
Date Wed, 19 Mar 2008 12:34:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12580342#action_12580342
] 

Runping Qi commented on HADOOP-3041:
------------------------------------


bq: Possibly. One thing that is of concern here is that apps potentially have been written
using the getOutputPath API (that creates side files within it).. 

Indeed. Any applications that implementtheir own output format class depend on the current
semantics of getOutputPath.
I have many of such applications.



> Within a task, the value ofJobConf.getOutputPath() method is modified
> ---------------------------------------------------------------------
>
>                 Key: HADOOP-3041
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3041
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.16.1
>         Environment: all
>            Reporter: Alejandro Abdelnur
>            Assignee: Amareshwari Sriramadasu
>            Priority: Blocker
>             Fix For: 0.16.2
>
>
> Until 0.16.0 the value of the getOutputPath() method, if queried within a task, pointed
to the part file assigned to the task. 
> For example: /user/foo/myoutput/part_00000
> In 0.16.1, now it returns an internal hadoop for the task output temporary location.
> For the above example: /user/foo/myoutput/_temporary/part_00000
> This change breaks applications that use the getOutputPath() to compute other directories.
> IMO, this has always being broken, Hadoop should not change the values of properties
injected by the client, instead it should use private properties or internal helper methods.


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message