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https://issues.apache.org/jira/browse/HIVE-2368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13135623#comment-13135623
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Hudson commented on HIVE-2368:
------------------------------
Integrated in Hive-trunk-h0.21 #1034 (See
[https://builds.apache.org/job/Hive-trunk-h0.21/1034/])
HIVE-2368. Slow dropping of partitions caused by full listing of storage
descriptors (Sohan Jain via pauly)
pauly : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1188886
Files :
*
/hive/trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java
> Slow dropping of partitions caused by full listing of storage descriptors
> -------------------------------------------------------------------------
>
> Key: HIVE-2368
> URL: https://issues.apache.org/jira/browse/HIVE-2368
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Reporter: Sohan Jain
> Assignee: Sohan Jain
> Fix For: 0.9.0
>
> Attachments: HIVE-2368.1.patch
>
>
> To determine if a column descriptor is unused, we call
> listStorageDescriptorsWithCD(), which may return a big list of SDs. This can
> severely slow down dropping partitions.
> We can add a maximum number of SDs to return, and just ask for 1 SD, since we
> are just doing an existential check.
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