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https://issues.apache.org/jira/browse/HIVE-20246?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HIVE-20246:
----------------------------
Resolution: Fixed
Status: Resolved (was: Patch Available)
Pushed to master. Thanks [~afan]
> Configurable collecting stats by using DO_NOT_UPDATE_STATS table property
> -------------------------------------------------------------------------
>
> Key: HIVE-20246
> URL: https://issues.apache.org/jira/browse/HIVE-20246
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Reporter: Alice Fan
> Assignee: Alice Fan
> Priority: Minor
> Fix For: 4.0.0
>
> Attachments: HIVE-20246.5.patch, HIVE-20246.6.patch,
> HIVE-20246.7.patch
>
>
> By default, Hive collects stats when running operations like alter table
> partition(s), create table, and create external table. However, collecting
> stats requires Metastore lists all files under the table directory and the
> file listing operation can be very expensive particularly on filesystems like
> S3.
> HIVE-18743 made DO_NOT_UPDATE_STATS table property could be selectively
> prevent stats collection.
> This Jira aims at introducing DO_NOT_UPDATE_STATS table property into the
> MetaStoreUtils.updatePartitionStatsFast. By adding this, user can be
> selectively prevent stats collection when doing alter table partition(s)
> operation at table level. For example, set 'Alter Table S3_Table set
> tblproperties('DO_NOT_UPDATE_STATS'='TRUE');' MetaStore will not collect
> stats for the specified S3_Table when alter table add partition(key1=val1,
> key2=val2);
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