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Lefty Leverenz commented on HIVE-4248: -------------------------------------- This added configuration parameter *hive.exec.orc.memory.pool* to HiveConf.java in 0.11.0. It's documented in the wiki here: * [Configuration Properties -- hive.exec.orc.memory.pool | https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.exec.orc.memory.pool] > Implement a memory manager for ORC > ---------------------------------- > > Key: HIVE-4248 > URL: https://issues.apache.org/jira/browse/HIVE-4248 > Project: Hive > Issue Type: New Feature > Components: Serializers/Deserializers > Reporter: Owen O'Malley > Assignee: Owen O'Malley > Fix For: 0.11.0 > > Attachments: HIVE-4248.D9993.1.patch, HIVE-4248.D9993.2.patch, > HIVE-4248.D9993.4.patch > > > With the large default stripe size (256MB) and dynamic partitions, it is > quite easy for users to run out of memory when writing ORC files. We probably > need a solution that keeps track of the total number of concurrent ORC > writers and divides the available heap space between them. -- This message was sent by Atlassian JIRA (v6.2#6252)