[jboss-jira] [JBoss JIRA] Created: (JGRP-618) FLUSH coordinator transfer reorders block/unblock/view events in applications (TCP stack only)

Wed Nov 7 15:32:44 EST 2007

FLUSH coordinator transfer reorders block/unblock/view events in applications (TCP stack only)
----------------------------------------------------------------------------------------------

                 Key: JGRP-618
                 URL: http://jira.jboss.com/jira/browse/JGRP-618
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 2.6
            Reporter: Vladimir Blagojevic
         Assigned To: Vladimir Blagojevic

When flush coordinator A runs a flush for a view that excludes himself a flush coordinator transfer occurs. Member B that is first next neighbor of A according to view has to complete the flush by sending STOP_FLUSH to all. 

Simplification of FLUSH JGRP-598 removed complex stop flush phase. In new design as soon as member receives STOP_FLUSH it unblocks application by sending UNBLOCK. Now, during coordinator transfer described above we first have to send a view up to application and then invoke STOP_FLUSH. If we do it other way around STOP_FLUSH will loop back and cause delivery of UNBLOCK to application prior to new view - thus causing reordering of block/unblock/view events in applications.

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira