You are viewing a plain text version of this content. The canonical link for it is here.

Posted to dev@hive.apache.org by "Brock Noland (JIRA)" <ji...@apache.org> on 2014/08/12 07:34:12 UTC

[jira] [Created] (HIVE-7685) Parquet memory manager

Brock Noland created HIVE-7685:
----------------------------------

             Summary: Parquet memory manager
                 Key: HIVE-7685
                 URL: https://issues.apache.org/jira/browse/HIVE-7685
             Project: Hive
          Issue Type: Improvement
          Components: Serializers/Deserializers
            Reporter: Brock Noland


Similar to HIVE-4248, Parquet tries to write large very large "row groups". This causes Hive to run out of memory during dynamic partitions when a reducer may have many Parquet files open at a given time.

As such, we should implement a memory manager which ensures that we don't run out of memory due to writing too many row groups within a single JVM.



--
This message was sent by Atlassian JIRA
(v6.2#6252)