Yuki Morishita created CASSANDRA-5076:
-----------------------------------------
Summary: Murmur3Partitioner#describeOwnership calculates
ownership% wrong
Key: CASSANDRA-5076
URL: https://issues.apache.org/jira/browse/CASSANDRA-5076
Project: Cassandra
Issue Type: Bug
Affects Versions: 1.2.0 rc1
Reporter: Yuki Morishita
Priority: Minor
When I issued 'nodetool status' on Murmur3-partitioned cluster I got the
following output:
{code}
$ bin/nodetool -p 7100 status
(git)-[5065]-[~/Developments/workspace/cassandra]
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Owns Host ID
Token Rack
UN 127.0.0.1 24.78 KB 66.7% ace7e54c-9fe1-4b23-83b0-949772b24c30
-9223372036854775808 rack1
UN 127.0.0.2 29.22 KB 66.7% 67146442-dbfd-449c-82e1-26729b8ac89c
-3074457345618258603 rack1
UN 127.0.0.3 6.19 KB 66.7% 3fab9f18-daf3-4452-8b9c-204ea0ee2e15
3074457345618258602 rack1
{code}
Notice that 'Owns' percentages add up to 200%.
I think the problem is that Murmur3Partitioner#describeOwnership currently
calculate ownership% based on [0, Long.MAX_VALUE] range, but we have to
consider about negative tokens.
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