[ 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