[infinispan-issues] [JBoss JIRA] (ISPN-2394) Use DataRehashedEvent to signal end of state transfer

[Adrian Nistor (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750831#comment-12750831 ] 

Adrian Nistor commented on ISPN-2394:
-------------------------------------

DataRehashedEvent works again on 5.2 after ISPN-2507 was fixed. All we need to do is use this event in places like TestingUtil.waitForRehashToComplete().
                
> Use DataRehashedEvent to signal end of state transfer
> -----------------------------------------------------
>
>                 Key: ISPN-2394
>                 URL: https://issues.jboss.org/browse/ISPN-2394
>             Project: Infinispan
>          Issue Type: Task
>          Components: State transfer
>    Affects Versions: 5.2.0.ALPHA1
>            Reporter: Adrian Nistor
>            Assignee: Adrian Nistor
>             Fix For: 6.0.0.Final
>
>
> Since NBST was introduced the actual completion of state transfer happens later than the TopologyChangedEvent. In unit tests there is currently no simple way to find out when this actually happens so we resorted to some ugly polling (see TestingUtil.waitForRehashToComplete()). Also some other core components could benefit from such an event (eg. StaleTransactionCleanupService, see ISPN-2383).  
> The event should contain the CacheTopology that is being confirmed as stable.

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