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https://issues.apache.org/jira/browse/HIVE-7685?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dong Chen updated HIVE-7685:
----------------------------
Assignee: Dong Chen
Status: Patch Available (was: Open)
This patch adds a hook in Hive to use the Parquet memory manager in Parquet
(PARQUET-108).
When PARQUET-108 get committed into trunk and packaged in Maven (1.6.0 or
1.6.0rc3), this patch should work. I will track it then.
> 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
> Assignee: Dong Chen
>
> 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.
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