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1. Re: How to use fully-eplicated and buddy-replicated caches w
fredrikj Jan 7, 2008 7:17 AM (in response to ne_vasya)Why don't you just use separate regions in the cache?
I.e.:root {} /data_a /... // first data set here /data_b /... // second data set here
That way you use one cache for your data. -
2. Re: How to use fully-eplicated and buddy-replicated caches w
ne_vasya Jan 7, 2008 6:06 PM (in response to ne_vasya)I initially intended to use different regions under root, but can I have different replication policies for different regions?
For example, can I have one region with full replication and another region with buddy replication?
Thanks,
Dmitriy -
3. Re: How to use fully-eplicated and buddy-replicated caches w
manik Jan 7, 2008 7:48 PM (in response to ne_vasya)"ne_vasya" wrote:
I initially intended to use different regions under root, but can I have different replication policies for different regions?
For example, can I have one region with full replication and another region with buddy replication?
Dmitriy, no this cannot be done at the moment. We are considering adding more configurability to regions (JBCACHE-64).
- Manik -
4. Re: How to use fully-eplicated and buddy-replicated caches w
manik Jan 7, 2008 8:00 PM (in response to ne_vasya)"ne_vasya" wrote:
I have a case where I need to fully replicate some data, but not all.
I understand that I could configure 2 different caches, but that would imply that I need to configure 2 different JGroups channels which makes me a bit uneasy for following reasons:
-- SNIP --
Is there any way 2 caches could reuse the same JGroups cluster?
Can I achieve this with options override feature?
Can I use options override on per-node level?
Yes, 2 Cache instances can share a single JGroups channel using the JGroups Multiplexer. There are sample configs in SVN.
And here's a wiki page with more info on the multiplexer: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossCacheMultiplexer
In a nutshell, with the multiplexer, a single JGroups channel is created and shared among several cache instances. That way, one cache can be configured to use BR and the other can use total replication.