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Posted to issues@hive.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/11/02 12:16:58 UTC

[jira] [Updated] (HIVE-14803) S3: Stats gathering for insert queries can be expensive for partitioned dataset

     [ https://issues.apache.org/jira/browse/HIVE-14803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan updated HIVE-14803:
------------------------------------
    Attachment: HIVE-14803.4.patch

> S3: Stats gathering for insert queries can be expensive for partitioned dataset
> -------------------------------------------------------------------------------
>
>                 Key: HIVE-14803
>                 URL: https://issues.apache.org/jira/browse/HIVE-14803
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>    Affects Versions: 2.1.0
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-14803.1.patch, HIVE-14803.2.patch, HIVE-14803.3.patch, HIVE-14803.4.patch
>
>
> StatsTask's aggregateStats populates stats details for all partitions by checking the file sizes which turns out to be expensive when larger number of partitions are inserted. 



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