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https://issues.apache.org/jira/browse/HADOOP-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12505686
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Owen O'Malley commented on HADOOP-71:
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*sigh*
I guess it is a bit too aggressive. The point of doing that is that any
OutputFormats who use that FileSystem are broken in exactly the way fixed by
this patch. Furthermore, the parameter has been named 'ignored' for many
releases. (Only OutputFormats were given nulls, because InputFormats don't take
a FileSystem. I think I removed the InputFormat FileSystem parameter a long
time ago.)
> The SequenceFileRecordReader uses the default FileSystem rather than the
> supplied one
> -------------------------------------------------------------------------------------
>
> Key: HADOOP-71
> URL: https://issues.apache.org/jira/browse/HADOOP-71
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.1.0
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Fix For: 0.14.0
>
> Attachments: non-default-fs-input.patch
>
>
> The mapred.TestSequenceFileInputFormat test was failing when run with a conf
> directory that pointed to a dfs cluster. The reason was that
> SequenceFileRecordReader was using the default FileSystem from the config,
> while the test program was assuming the "local" file system was being used.
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