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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5263) filecache.DistributedCache incompatiblity issues with MR1
Date Mon, 03 Jun 2013 19:26:20 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5263?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13673462#comment-13673462
] 

Jason Lowe commented on MAPREDUCE-5263:
---------------------------------------

bq. They will break 0.23, but not significantly.

Could you elaborate more on "not significantly"?  Do you know that code in 0.23 doesn't call
this method, for example?

We were under the impression that the mapred APIs were paramount to 1.x binary compatibility,
but since this is not going to be the case for the mapreduce APIs that the 0.23 mapreduce
APIs would be preserved.  Is that no longer the case?
                
> filecache.DistributedCache incompatiblity issues with MR1
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-5263
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5263
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>             Fix For: 2.1.0-beta
>
>         Attachments: MAPREDUCE-5263.1.patch, MAPREDUCE-5263.2.patch, MAPREDUCE-5263.3.patch,
MAPREDUCE-5263.4.patch
>
>
> A couple of methods and variables have been removed:
> void addLocalArchives(Configuration, String)
> void addLocalFiles(Configuration, String)
> void createAllSymlink(Configuration, File, File)
> FileStatus getFileStatus(Configuration, URI)
> long getTimestamp(Configuration, URI)
> void setArchiveTimestamps(Configuration, String)
> void setFileTimestamps(Configuration, String)
> void setLocalArchives(Configuration, String)
> void setLocalFiles(Configuration, String)
> String CACHE_ARCHIVES
> String CACHE_ARCHIVES_SIZES
> String CACHE_ARCHIVES_TIMESTAMPS
> String CACHE_FILES
> String CACHE_FILES_SIZES
> String CACHE_FILES_TIMESTAMPS
> String CACHE_LOCALARCHIVES
> String CACHE_LOCALFILES
> String CACHE_SYMLINK

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