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https://issues.apache.org/jira/browse/HADOOP-8395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273869#comment-13273869
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Hudson commented on HADOOP-8395:
--------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #2254 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2254/])
HADOOP-8395. Text shell command unnecessarily demands that a SequenceFile's
key class be WritableComparable (harsh) (Revision 1337449)
Result = ABORTED
harsh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1337449
Files :
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/shell/Display.java
> Text shell command unnecessarily demands that a SequenceFile's key class be
> WritableComparable
> ----------------------------------------------------------------------------------------------
>
> Key: HADOOP-8395
> URL: https://issues.apache.org/jira/browse/HADOOP-8395
> Project: Hadoop Common
> Issue Type: Bug
> Components: util
> Affects Versions: 2.0.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Trivial
> Labels: shell
> Fix For: 3.0.0
>
> Attachments: HADOOP-8395.patch
>
>
> Text from Display set of Shell commands (hadoop fs -text), has a strict
> subclass check for a sequence-file-header loaded key class to be a subclass
> of WritableComparable.
> The sequence file writer itself has no such checks (one can create sequence
> files with just plain writable keys, comparable is needed for sequence file's
> sorter alone, which not all of them use always), and hence its not reasonable
> for Text command to carry it either.
> We should relax the check and simply just check for "Writable", not
> "WritableComparable".
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