[
https://issues.apache.org/jira/browse/HIVE-12945?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lefty Leverenz updated HIVE-12945:
----------------------------------
Labels: TODOC2.0 (was: )
> Bucket pruning: bucketing for -ve hashcodes have historical issues
> ------------------------------------------------------------------
>
> Key: HIVE-12945
> URL: https://issues.apache.org/jira/browse/HIVE-12945
> Project: Hive
> Issue Type: Bug
> Components: Tez
> Affects Versions: 2.0.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Critical
> Labels: TODOC2.0
> Fix For: 2.0.0, 2.1.0
>
> Attachments: HIVE-12945.02.patch, HIVE-12945.1.patch
>
>
> The different ETL pathways differed in reducer choice slightly for -ve
> hashcodes.
> {code}
> (hashCode & Integer.MAX_VALUE) % numberOfBuckets;
> !=
> Math.abs(hashCode) % numberOfBuckets
> {code}
> Add a backwards compat option, which can be used to protect against old data
> left over from 0.13.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
