[infinispan-issues] [JBoss JIRA] (ISPN-2394) Introduce an event to signal end of state transfer
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https://issues.jboss.org/browse/ISPN-2394?page=com.atlassian.jira.plugin....
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Dan Berindei commented on ISPN-2394:
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I think the existing {{TopologyChanged}} event is fine, we just need to modify it to
contain the initial and final {{CacheTopology}}. That way a listener can check if the
pending CH is {{null}} in the final topology and conclude that state transfer has
finished.
Introduce an event to signal end of state transfer
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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: 5.2.0.CR1
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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