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From "Rajesh Balamohan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14803) S3: Stats gathering for insert queries can be expensive for partitioned dataset
Date Fri, 21 Oct 2016 08:23:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15594460#comment-15594460
] 

Rajesh Balamohan commented on HIVE-14803:
-----------------------------------------

Will check running the patch again. I tried it on local environment and did not get any of
the test failures reported by jenkins (e.g testclidriver).


{noformat}
In qtest, "mvn test -Dtest=TestCliDriver -Dqfile=index_auto_partitioned.q,autoColumnStats_4.q,nonmr_fetch.q,outer_join_ppr.q,ppd2.q,input_part9.q,orc_merge9.q,deleteAnalyze.q,louter_join_ppr.q,transform_ppr2.q,ppd_udf_case.q,acid_table_stats.q,pcr.q,stats2.q,insert_values_orig_table_use_metadata.q,union25.q,ppr_allchildsarenull.q
 -Dtest.output.overwrite=true"

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in
8.0
Running org.apache.hadoop.hive.cli.TestCliDriver
Tests run: 17, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 850.707 sec - in org.apache.hadoop.hive.cli.TestCliDriver

Results :
{noformat}

> 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
>
>
> 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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