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https://issues.apache.org/jira/browse/HIVE-25501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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László Bodor updated HIVE-25501:
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Description:
This is due to performance considerations. When a large amount of partitions is
present in MapWork, serializing useless properties (coming from metastore as a
partititon metadata) could become a bottleneck, which can even lead to OOM in
Tez AM is the dag plan becomes large.
was:
This is due to performance considerations. When a large amount of partitions
are present in MapWork, serializing useless properties (coming from metastore
as a partititon metadata) could become a bottleneck, which can even lead to OOM
in Tez AM is the dag plan becomes large.
> Provide a filter for removing useless properties from PartitionDesc objects
> before MapWork serialization
> --------------------------------------------------------------------------------------------------------
>
> Key: HIVE-25501
> URL: https://issues.apache.org/jira/browse/HIVE-25501
> Project: Hive
> Issue Type: Improvement
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
>
> This is due to performance considerations. When a large amount of partitions
> is present in MapWork, serializing useless properties (coming from metastore
> as a partititon metadata) could become a bottleneck, which can even lead to
> OOM in Tez AM is the dag plan becomes large.
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