[jira] [Updated] (DRILL-1525) Use XXHash algorithm for hash functions

["Mehant Baid (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-1525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mehant Baid updated DRILL-1525:
-------------------------------
    Attachment: DRILL-1525.patch

Patch to use XXHash algorithm. Brunt of the algorithm was implemented by [~pipfiddle] , I built on top of his work to  iron out a few issues.

> Use XXHash algorithm for hash functions
> ---------------------------------------
>
>                 Key: DRILL-1525
>                 URL: https://issues.apache.org/jira/browse/DRILL-1525
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Mehant Baid
>            Assignee: Mehant Baid
>             Fix For: 0.7.0
>
>         Attachments: DRILL-1525.patch
>
>
> Currently we are using murmur hash algorithm for performing hash operations. We would like to move to XXHash which is a fast non-cryptographic  hash algorithm. More information can be found here: https://code.google.com/p/xxhash/
> The implementation should also eliminates an extra copy of the ByteBuf to be consumed by the hash function.



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