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https://issues.apache.org/jira/browse/PIG-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580787#comment-13580787
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Ashutosh Chauhan commented on PIG-3194:
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Hadoop has moved to 1.4 long way back. If I remember correctly 0.20.2 was last
release with 1.3. In hadoop2 I believe they are at 1.5. Though this is
debatable but IMO consistency with hadoop-1 is more important than 0.20.2.
http://svn.apache.org/viewvc/hadoop/common/branches/branch-1/ivy/libraries.properties?revision=1342816&view=markup
> Pig 0.11 candidate 2: Changes to ObjectSerializer.java break compatibility
> with Hadoop 0.20.2
> ---------------------------------------------------------------------------------------------
>
> Key: PIG-3194
> URL: https://issues.apache.org/jira/browse/PIG-3194
> Project: Pig
> Issue Type: Bug
> Reporter: Kai Londenberg
>
> The changes to ObjectSerializer.java in the following commit
> http://svn.apache.org/viewvc?view=revision&revision=1403934 break
> compatibility with Hadoop 0.20.2 Clusters.
> The reason is, that the code uses methods from Apache Commons Codec 1.4 -
> which are not available in Apache Commons Codec 1.3 which is shipping with
> Hadoop 0.20.2.
> The offending methods are Base64.decodeBase64(String) and
> Base64.encodeBase64URLSafeString(byte[])
> If I revert these changes, Pig 0.11.0 candidate 2 works well with our Hadoop
> 0.20.2 Clusters.
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