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Posted to dev@pig.apache.org by "Richard Ding (JIRA)" <ji...@apache.org> on 2010/07/20 02:31:52 UTC
[jira] Updated: (PIG-1489) Pig MapReduceLauncher does not use jars
in register statement
[ https://issues.apache.org/jira/browse/PIG-1489?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Richard Ding updated PIG-1489:
------------------------------
Attachment: PIG-1489.patch
This patch adds registered jars to the class loader.
> Pig MapReduceLauncher does not use jars in register statement
> ---------------------------------------------------------------
>
> Key: PIG-1489
> URL: https://issues.apache.org/jira/browse/PIG-1489
> Project: Pig
> Issue Type: Bug
> Reporter: Olga Natkovich
> Assignee: Richard Ding
> Fix For: 0.8.0
>
> Attachments: PIG-1489.patch
>
>
> If my Pig StorFunc has its own OutputFormat class then Pig MapReducelauncher will try to instantiate it before
> launching the mapreduce job and fail with ClassNotFoundException.
> This happens because Pig MapReduce launcher uses its own classloader and ignores the classes in the jars in the
> register statement.
> The effect is that the jars not only have to be in "register " statement in the script but also in the pig
> classpath with the -classpath tag.
> This can be remedied by making the Pig MapReduceLauncher constructing a classloader that includes the registered jars
> and using that to instantiate the OutputFormat class.
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