[infinispan-issues] [JBoss JIRA] (ISPN-2872) CH_UPDATE from new coord may crash rebalance from old coord

Radim Vansa created ISPN-2872: --------------------------------- Summary: CH_UPDATE from new coord may crash rebalance from old coord Key: ISPN-2872 URL: https://issues.jboss.org/browse/ISPN-2872 Project: Infinispan Issue Type: Bug Components: State transfer Affects Versions: 5.2.2.Final Reporter: Radim Vansa Assignee: Mircea Markus This happened probably the first time, but the issue is here: When old coordinator leaves the cluster, it sends a REBALANCE_START as a goodbye. This will trigger rebalance process on some of the nodes. As we do sync GET_TRANSACTIONS, processing this command may take a while. However, new coordinator will send CH_UPDATE, which will change the current topologyId to a higher id. This command is processed in LocalTopologyManagerImpl synchronized on cacheStatus, but rebalance command has already left its synchronized block when it executes handler.rebalance. Then, as the old REBALANCE_START tries to call notifyTransactionDataReceived in its finally block, it finds out that the topologyId has increased and throws an exception. But the rebalance is left in inconsistent state (activeTopologyUpdates are non-zero, potentionally waitForState true, DataRehash listener notification not called...). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira