[
https://issues.apache.org/jira/browse/HADOOP-9419?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Joseph Evans moved MAPREDUCE-5082 to HADOOP-9419:
--------------------------------------------------------
Issue Type: Improvement (was: Bug)
Key: HADOOP-9419 (was: MAPREDUCE-5082)
Project: Hadoop Common (was: Hadoop Map/Reduce)
> CodecPool should avoid OOMs with buggy codecs
> ---------------------------------------------
>
> Key: HADOOP-9419
> URL: https://issues.apache.org/jira/browse/HADOOP-9419
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Robert Joseph Evans
>
> I recently found a bug in the gpl compression libraries that was causing map
> tasks for a particular job to OOM.
> https://github.com/omalley/hadoop-gpl-compression/issues/3
> Now granted it does not make a lot of sense for a job to use the LzopCodec
> for map output compression over the LzoCodec, but arguably other codecs could
> be doing similar things and causing the same sort of memory leaks. I propose
> that we do a sanity check when creating a new decompressor/compressor. If
> the codec newly created object does not match the value from getType... it
> should turn off caching for that Codec.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
