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Posted to mapreduce-dev@hadoop.apache.org by "Tom Melendez (JIRA)" <ji...@apache.org> on 2011/05/12 00:03:47 UTC
[jira] [Created] (MAPREDUCE-2485) reinitialize CLASSPATH variable
when executing Mapper/Reducer code
reinitialize CLASSPATH variable when executing Mapper/Reducer code
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Key: MAPREDUCE-2485
URL: https://issues.apache.org/jira/browse/MAPREDUCE-2485
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: pipes
Affects Versions: 0.20.2
Environment: Ubuntu 10.04 LTS
Reporter: Tom Melendez
We're using pipes, and using libhdfs inside our mapper and reducer code. We've determined that we need to execute a putenv call in order for libhdfs to actually have access to the CLASSPATH. Ideally, it should just use the CLASSPATH we set when the job was executed.
For some more context, see these threads:
https://groups.google.com/a/cloudera.org/group/cdh-user/browse_thread/thread/ae9808d80fb132fb?tvc=2
http://comments.gmane.org/gmane.comp.jakarta.lucene.hadoop.user/25830
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[jira] [Resolved] (MAPREDUCE-2485) reinitialize CLASSPATH variable
when executing Mapper/Reducer code
Posted by "Tom Melendez (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-2485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tom Melendez resolved MAPREDUCE-2485.
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Resolution: Invalid
False alarm, works OK.
> reinitialize CLASSPATH variable when executing Mapper/Reducer code
> ------------------------------------------------------------------
>
> Key: MAPREDUCE-2485
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2485
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: pipes
> Affects Versions: 0.20.2
> Environment: Ubuntu 10.04 LTS
> Reporter: Tom Melendez
>
> We're using pipes, and using libhdfs inside our mapper and reducer code. We've determined that we need to execute a putenv call in order for libhdfs to actually have access to the CLASSPATH. Ideally, it should just use the CLASSPATH we set when the job was executed.
> For some more context, see these threads:
> https://groups.google.com/a/cloudera.org/group/cdh-user/browse_thread/thread/ae9808d80fb132fb?tvc=2
> http://comments.gmane.org/gmane.comp.jakarta.lucene.hadoop.user/25830
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