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https://issues.apache.org/jira/browse/CASSANDRA-3772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pavel Yaskevich updated CASSANDRA-3772:
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Attachment: CASSANDRA-3772-v4.patch
v4 includes the following changes:
- LongToken is added to o.a.c.dht
- M3P is changed to use LongToken
- AbstractHashedPartitioner is removed as no longer needed
- RP was reverted to it's previous code state (before split into AHP and M3P)
- NEWS.txt are updated to reflect change in default partitioner
- added Murmur3PartitionerTest
change to use longs in M3P buys us another ~6-7 op/s comparing to
BigIntegerToken.
> Evaluate Murmur3-based partitioner
> ----------------------------------
>
> Key: CASSANDRA-3772
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3772
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Jonathan Ellis
> Assignee: Pavel Yaskevich
> Fix For: 1.2.0
>
> Attachments: 0001-CASSANDRA-3772.patch,
> 0001-CASSANDRA-3772-Test.patch, CASSANDRA-3772-v2.patch,
> CASSANDRA-3772-v3.patch, CASSANDRA-3772-v4.patch, hashed_partitioner_3.diff,
> hashed_partitioner.diff, MumPartitionerTest.docx, try_murmur3_2.diff,
> try_murmur3.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 instead.
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