[jboss-dev-forums] [Design of Messaging on JBoss (Messaging/JBoss)] - Re: Failover & Paiging...

[clebert.suconic@jboss.com]

The DuplicateIDCache will not work:


- The MessageID lookup could fail in two circunstances:
   I - on deliverReplicated, where we need to temporarily remove the messages from the Queue and place it on deliveringRefs.

   II - On replicating acknoledgement... as I could fail


On I, we can't really add anything to duplicateIDCache, as the ID wasn't even delivered yet.


I have created a Branch with my current changes:

https://svn.jboss.org/repos/messaging/branches/Branch_Failover_Page


And PagingfailoverTest will pass with this Hack on QueueImpl:

         // This is a temporary hack, for the temporary branch only
  |          for (int i = 0; i < 10; i++)
  |          {
  |             System.out.println("Retry " + i);
  |             Thread.sleep(100);
  |             
  |             ref = removeReferenceWithID(id, false);
  |             
  |             if (ref != null)
  |             {
  |                System.out.println("Finally found it:");
  |                break;
  |             }
  |          }
  | 





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