[infinispan-dev] Prepare and Rollback messages order

[Mircea Markus]

On 31 May 2012, at 16:53, Sebastiano Peluso wrote:
> Hi Mircea,
> 
> thanks for the answer. But can you confirm that the rollback command is 
> sent after the reception of all the participants' acknowledgements even 
> if we run Infinispan in *distribution* mode?
> 
> In particular, does the prepare phase break the cycle at line 335 of the 
> CommandAwareRpcDispatcher [1] if one of the remote prepares throws an 
> exception? In this case I think that the get() method of the associated 
> Future object throws an exception as well.
You are actually right, the broadcast would react to the first exception and send the rollback, potentially causing a reordering and a transaction leak.
I've created a JIRA[1] to track this together with a unit test  - thank you Sebastiano for the very good observation!

https://issues.jboss.org/browse/ISPN-2081