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https://issues.apache.org/jira/browse/PIG-3194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13593328#comment-13593328
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Jonathan Coveney commented on PIG-3194:
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I don't love the idea of bringing the classes in, and would rather just use the
methods available in 1.3 if possible. I think that's a fine path, as you are
correct: we don't need to be url safe.
> 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
> Affects Versions: 0.11
> 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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