[infinispan-issues] [JBoss JIRA] Updated: (ISPN-1092) TopologyAwareConsistentHash with virtual nodes enabled can return two owners for a key when there is only one node in the cluster

[Dan Berindei (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1092?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dan Berindei updated ISPN-1092:
-------------------------------

            Assignee: Dan Berindei  (was: Pete Muir)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/334


* I updated TopologyAwareConsistentHash to always return less than the number of nodes in the cluster.
* I changed the algorithm so that it tries to find owners on as many different sites, racks and machines possible - before it was only searching for a site, rack or machine different from the first owner's.
* I changed AbstractWheelConsistentHash to make it to support virtual nodes better, so now DefaultConsistentHash also supports virtual nodes.


> TopologyAwareConsistentHash with virtual nodes enabled can return two owners for a key when there is only one node in the cluster
> ---------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: ISPN-1092
>                 URL: https://issues.jboss.org/browse/ISPN-1092
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Distributed Cache
>    Affects Versions: 5.0.0.CR1
>            Reporter: Dan Berindei
>            Assignee: Dan Berindei
>            Priority: Minor
>
> See org.infinispan.distribution.vnodes.VNodesCHPerfTest.testSpeed(), it fails when numNodes == 1 and numOwners == 2.

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