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https://issues.apache.org/jira/browse/FLINK-1305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235910#comment-14235910
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ASF GitHub Bot commented on FLINK-1305:
---------------------------------------
GitHub user rmetzger opened a pull request:
https://github.com/apache/incubator-flink/pull/252
[FLINK-1305] [FLINK-1304] Test for HadoopInputWrapper and NullWritable
support
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rmetzger/incubator-flink flink1304
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-flink/pull/252.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #252
----
commit 48778e83d2c04e2f65649b7c96f1aa92d4e1d350
Author: Robert Metzger <[email protected]>
Date: 2014-12-05T18:19:29Z
[FLINK-1305] [FLINK-1304] Test for HadoopInputWrapper and NullWritable
support
----
> Flink's hadoop compatibility layer cannot handle NullWritables
> --------------------------------------------------------------
>
> Key: FLINK-1305
> URL: https://issues.apache.org/jira/browse/FLINK-1305
> Project: Flink
> Issue Type: Bug
> Components: Hadoop Compatibility
> Affects Versions: 0.7.0-incubating
> Reporter: Sebastian Schelter
> Assignee: Robert Metzger
> Priority: Critical
>
> NullWritable is a special object that is commonly used in Hadoop
> applications. NullWritable does not provide a public constructor, but only a
> singleton factory method. Therefore Flink fails when users to try to read
> NullWritables from Hadoop sequencefiles.
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