[infinispan-dev] [ISPN-731] - make rehashing state and tx log draining serial

[Vladimir Blagojevic]

On 10-11-05 5:39 AM, Manik Surtani wrote:
> Shouldn't you count down after receivers have applied the state, and have then ack'd that this state has been applied?  Rather than when the state has been picked up?

I thought about that but I think there is no need. I have to think 
throught the details though. The main idea was since the state is a 
simple message sent from a state provider eventual tx log message sent 
from state provider as well is guaranteed to arrive after state message. 
Right?

> Rather than a countdown latch, wouldn't you rather maintain a synchronized set or something with the addresses of the recipients, and you only proceed when this set is empty?  Tighter control rather than a simple countdown.

Right, of course. I first wanted to see if I can get away cheaply :)
> Also, how do you plan on dealing with exceptional circumstances, e.g., a receiver node crashing before sending this ack?  Would that not block the entire rehash process?  Or would the node crashing cause a new view change, which will abort the LeaveTask (interrupt) and cause it to start all over again?

Yes, we would definetely need timeouts...and proper interrupt handling.

Cheers.

> Cheers
> Manik
> --
> Manik Surtani
> manik at jboss.org
> Lead, Infinispan
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