[infinispan-dev] Asymmetric clusters

[Mircea Markus]

On 11 Oct 2010, at 12:36, Sanne Grinovero wrote:

> Hello,
> 
> 2010/9/29 Manik Surtani <manik at jboss.org>:
>> This has been brought up a number of times - Paul re JBoss AS's use of
>> Infinispan, Sanne re: Lucene and several others.
> 
> My problems are not related to Lucene, but blocks any use I'm
> attempting with Infinispan if state-transfer is enabled and caches are
> not started quick enough consistently on new nodes.
> So in my case caches are started lazily according to service
> initialization (several different services define new caches
> programmatically, on demand).
> I would be fine if statetransfer could ignore values relating to
> unknown caches - but I assume this would lead to data loss on
> distribution cases; because of the same issue I experience
> ClassNotFoundExceptions, as I receive state about plugins which aren't
> yet loaded and will be started using other classloaders.
> 
> Also distribution should be different per cache, to consider on the
> hash wheel only nodes having the specific cache active.
> 
>> The problem is detailed in JIRA - https://jira.jboss.org/browse/ISPN-658 -
>> along with the beginnings of a solution.  Have a look and let me know what
>> you think (on this mail list, not JIRA).  My plan is to implement such
>> support for 5.0.
> 
> Hopefully soon, this seems to me a blocker for anyone planning to be
> elastic with Infinispan and start more than a single cache :/
> Looking forward for suggestions for temporary workarounds, I'm going
> to try using REPL only and ignore state-transfer related errors,
> Mircea suggested me to look into interceptors to try this approach.
yep, just take a look at CustomInterceptorConfigTest. Adding an interceptor right before ReplicationInterceptor would allow you to intercept all the remote exceptions thrown by this one, and potentially look into the stack trace (I have my self for writing this) and ignore them.
useless to say - ugly workaround. 
> 
> Cheers,
> Sanne
> 
>> Cheers
>> Manik
>> --
>> Manik Surtani
>> manik at jboss.org
>> Lead, Infinispan
>> Lead, JBoss Cache
>> http://www.infinispan.org
>> http://www.jbosscache.org
>> 
>> 
>> 
>> 
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> 
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