Multiple leaves are not handled correctly with DIST
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Key: ISPN-1077
URL:
https://issues.jboss.org/browse/ISPN-1077
Project: Infinispan
Issue Type: Bug
Components: Distributed Cache
Affects Versions: 4.2.0.Final
Reporter: Mircea Markus
Assignee: Manik Surtani
Fix For: 4.2.2.FINAL, 5.0.0.FINAL
When multiple caches are leaving at the same time(i.e. the diff between jgroups views is
more than one address), Infinispan ends up with an inconsistent hash function: it is aware
about nodes that are no longer present in the cluster.
The root cause of the problem is in DistributionManagerImpl.rehash(...):
- the list of leavers is determined as follows:
Address leaver = MembershipArithmetic.getMemberLeft(oldMembers, newMembers);
- this method always assumes a single leaver, but there can be many.
Unit test attached.
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