RE: [Opensymphony-oscache] help with clustering

Hi,

thx for your response. Yes, flush messages are send to all nodes of cluster. 
I think oscache is not the product I'm looking for :((

Thx
Neos

>From: "Thomas Sasala" <[email protected]>
>Reply-To: [email protected]
>To: [email protected]
>Subject: RE: [Opensymphony-oscache] help with clustering
>Date: Mon, 09 May 2005 14:06:27 +0000
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>Unless something has changed in the last couple of weeks, to the best of my 
>knowledge, oscache does not handle distributed object tracking.  That is, 
>oscache does not serialize cached objects and distribute them across all 
>caches.  The only messages sent to distributed caches are flush messages.  
>Try sending a flush message and see what happens.  My results have been 
>mixed (e.g., unreliable reception of flush messages) using jgroups and 
>multicast.  However, I have not had time to investigate the problem well 
>enough to report the issue (if there is one).
>
>-Tom
>
>>From: "Neos 76" <[email protected]>
>>Reply-To: [email protected]
>>To: [email protected]
>>Subject: [Opensymphony-oscache] help with clustering
>>Date: Mon, 09 May 2005 02:32:02 +0200
>>
>>Hi,
>>
>>I'm new to OSCache. I configured OSCache (2.1.1) to use JGroups to 
>>broadcast cahce events. This is my oscahce.properties file (in 
>>WEB-INF/classes folder):
>>
>>cache.event.listeners=com.opensymphony.oscache.plugins.clustersupport.JavaGroupsBroadcastingListener, 
>>  \
>>                     
>>com.opensymphony.oscache.extra.CacheEntryEventListenerImpl,               
>>\
>>                     
>>com.opensymphony.oscache.extra.CacheMapAccessEventListenerImpl,           
>>\
>>                     com.opensymphony.oscache.extra.ScopeEventListenerImpl
>>
>>cache.memory=true
>>cache.capacity=10
>>cache.algorithm=com.opensymphony.oscache.base.algorithm.LRUCache
>>cache.blocking=false
>>
>>Cluster looks like to be ok. In log file I see
>>
>>...
>>16:58:31,956 INFO  [JavaGroupsBroadcastingListener] JavaGroups clustering 
>>support started successfully
>>
>>I see also that two app are joined to the cluster
>>
>>I'm working with two servlet container (Caucho Resin) on two phisical 
>>server.
>>The problem is that using GenralCacheAdministrator (I save it in a static 
>>field), the cache on the first server is not distributed on second server. 
>>I dont'see notification messages.
>>I do simply this:
>>
>>on first server I create an object and put the object in cache with key 
>>"mykey1". On second server I get object stored in key "mykey1" but I have 
>>a NeedsRefreshException.
>>
>>code 1:
>>
>>CacheManager cacheManager = CacheManager.getInstance(); // my class to 
>>save GeneralCacheAdministrator
>>GeneralCacheAdministrator cacheAdm = 
>>cacheManager.getGeneralCacheAdministrator();
>>Car car = new Car(carId,carColor);
>>Cache cache = cacheAdm.getCache();
>>cacheAdm.putInCache("Car1",car);
>>
>>code 2:
>>
>>CacheManager cacheManager = CacheManager.getInstance();
>>GeneralCacheAdministrator cacheAdm = 
>>cacheManager.getGeneralCacheAdministrator();
>>Cache cache = cacheAdm.getCache();
>>Car carInCache = (Car) cacheAdm.getFromCache("Car1"); // throws 
>>NeedsRefreshException
>>
>>Can you tell me where is my mistake? I'm being crazy...
>>Thank you in aadvance
>>Neos
>>
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