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Posted to dev@storm.apache.org by "Sriharsha Chintalapani (JIRA)" <ji...@apache.org> on 2015/11/10 01:18:10 UTC

[jira] [Resolved] (STORM-1014) Use Hive Streaming API bucket info to bucket correctly

     [ https://issues.apache.org/jira/browse/STORM-1014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sriharsha Chintalapani resolved STORM-1014.
-------------------------------------------
    Resolution: Implemented

fixed on hive side.

> Use Hive Streaming API bucket info to bucket correctly
> ------------------------------------------------------
>
>                 Key: STORM-1014
>                 URL: https://issues.apache.org/jira/browse/STORM-1014
>             Project: Apache Storm
>          Issue Type: Improvement
>          Components: storm-hive
>            Reporter: Raj Bains
>            Assignee: Sriharsha Chintalapani
>            Priority: Critical
>
> The Storm bolt get a random bucket and writes data to it. Hive has expectation that rows (tuples for storm) are distributed across buckets using Hive's hash distribution. Writing to a random bucket by Storm leads to Hive optimizations that rely on bucketing to return incorrect results.
> The solution is for Storm Hive Bolt to use Hive bucket distribution information and put the rows/tuples in the correct buckets. This relies on Hive-11672. 
> This might require a shuffle within Storm. 



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