On 25 Jan 2012, at 14:22, Mircea Markus wrote:

Agreed that having a configurable remote get policy makes sense. 
We already have a JIRA for this[1], I'll start working on it as the performance results are hunting me.
I'd like to have Dan's input on this as well first, as he has worked with remote gets and I still don't know why null results are not considered valid :)

[1] https://issues.jboss.org/browse/ISPN-825

IMO we should work on a configurable scheme such as:

numInitialRemoteGets (default 1)
remoteGetTimeout (default 500ms?  What's our average remote GET time anyway?)

So with this scheme, we'd:
* Randomly select 'numInitialRemoteGets' from dataOwners
* Send them the remote get
* After remoteGetTimeout, send a remote get to the next data owner, until we run out of data owners
        * Return the first valid response.

--
Manik Surtani
manik@jboss.org
twitter.com/maniksurtani

Lead, Infinispan
http://www.infinispan.org