Re: [jbosscache-dev] Clear all data in destroy?
Hmm, I was thinking destroy too, but here's a use case for stop.
Cache is a 2nd level cache. No state transfer on startup, they just want
a cold cache.
Some problem is happening so they stop the cache and then start again.
Now they're out of sync with the cluster, i.e. missed any updates to
their cached data that occurred while they were stopped.
Basically, the state transfer semantics imply that the in-memory state
is "consistent" with the cluster when start returns. Either its
"consistent" because it's been transferred, or it's
"consistent" because
it's empty and waiting to be populated from a trusted source (shared
cache loader or external source like db). Leaving the in-memory state
around after stop() breaks that.
Manik Surtani wrote:
Makes sense to me, probably in destroy() rather than stop(), wdyt?
On 30 May 2007, at 17:14, Brian Stansberry wrote:
> Shouldn't destroy() clear all data from the in-memory cache? Or maybe
> stop()? IMHO if you destroy a cache and then call create/start again
> you shouldn't see the old data.
>
> Not advocating doing anything fancy here, i.e. anything that goes
> through the interceptor chain. Simple clearing of the data and
> children maps on the root node.
>
> --Brian Stansberry
> Lead, AS Clustering
> JBoss, a division of Red Hat
> brian.stansberry(a)redhat.com
>
> _______________________________________________
> jbosscache-dev mailing list
> jbosscache-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/jbosscache-dev
--
Manik Surtani
Lead, JBoss Cache
JBoss, a division of Red Hat
Email: manik(a)jboss.org
Telephone: +44 7786 702 706
MSN: manik(a)surtani.org
Yahoo/AIM/Skype: maniksurtani
--
Brian Stansberry
Lead, AS Clustering
JBoss, a division of Red Hat
brian.stansberry(a)redhat.com