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https://issues.apache.org/jira/browse/AMBARI-2116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Wagle updated AMBARI-2116:
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Attachment: AMBARI-2116-3.patch
Missing property.
> Add parameters to improve HIVE performance
> ------------------------------------------
>
> Key: AMBARI-2116
> URL: https://issues.apache.org/jira/browse/AMBARI-2116
> Project: Ambari
> Issue Type: Bug
> Components: controller
> Affects Versions: 1.2.3
> Reporter: Siddharth Wagle
> Assignee: Siddharth Wagle
> Fix For: 1.2.4
>
> Attachments: AMBARI-2116-1.patch, AMBARI-2116-2.patch,
> AMBARI-2116-3.patch, AMBARI-2116.patch
>
>
> This bug captures the set of configurations for hive and hadoop and the
> default values that are required for better/correct performance.
> Here are the setting Ambari should use for hive-site.xml.
> set hive.enforce.bucketing=true;
> set hive.enforce.sorting=true;
> set hive.map.aggr=true;
> set hive.optimize.bucketmapjoin=true;
> set hive.optimize.bucketmapjoin.sortedmerge=true;
> set hive.mapred.reduce.tasks.speculative.execution=false;
> set hive.auto.convert.join=true;
> set hive.auto.convert.sortmerge.join=true;
> set hive.auto.convert.sortmerge.join.noconditionaltask=true;
> set hive.auto.convert.join.noconditionaltask=true;
> set hive.auto.convert.join.noconditionaltask.size=1000000000;
> set hive.optimize.reducededuplication.min.reducer=1;
> set hive.optimize.mapjoin.mapreduce=true;
> set hive.mapjoin.bucket.cache.size=10000;
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