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Posted to issues@hive.apache.org by "László Bodor (Jira)" <ji...@apache.org> on 2021/09/06 10:42:00 UTC

[jira] [Updated] (HIVE-25501) Provide a filter for removing useless properties from PartitionDesc objects before MapWork serialization

     [ https://issues.apache.org/jira/browse/HIVE-25501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

László Bodor updated HIVE-25501:
--------------------------------
    Description: 
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 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.



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