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From "Vijay (Commented) (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-3772) Evaluate Murmur3-based partitioner
Date Tue, 27 Mar 2012 17:12:29 GMT


Vijay commented on CASSANDRA-3772:

>>>  Added back in a deprecated RandomPartitioner class that identity-derives from
MD5Partitioner for backwards compatibility.
Not sure about this:
May be we should call the MD5Partitioner a random partitioner and not Deprecate it (Because
we might not be able to remove this class for a long long time... Similar to OldNetworkTopologyStrategy)?

BTW: Jeremy, I was not able to see any Much of a difference using the stress tool.

> Evaluate Murmur3-based partitioner
> ----------------------------------
>                 Key: CASSANDRA-3772
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Dave Brosius
>             Fix For: 1.2
>         Attachments: hashed_partitioner.diff, try_murmur3.diff, try_murmur3_2.diff
> MD5 is a relatively heavyweight hash to use when we don't need cryptographic qualities,
just a good output distribution.  Let's see how much overhead we can save by using Murmur3

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