Hi, I have set up a cache region using DC, with MemoryShrinker enabled (true). I still receive the NoClassDefFoundError each time when restarting the web server, that issue was discussed under a different threat.
This time, with MemoryShrinker on, when the memory cache expired, I could see the listDS.data file got populated and the file size went from 0k to 1k. But after it wrote to the file in disk, i.e., after I saw in the log: ------------------------------------------------------ ------------------------------------------------------ [4/21/06 11:56:51:375 EDT] 0000003e CacheEventQue I Cache event queue created: CacheEventQueue [listenerId=-1121403549, cacheName=listDS] [4/21/06 11:57:01:391 EDT] 00000041 CacheEventQue I QProcessor exiting for CacheEventQueue [listenerId=-1121403549, cacheName=listDS] ------------------------------------------------------ ------------------------------------------------------ if I tried to access the cache again, I got the following exception: ------------------------------------------------------ ------------------------------------------------------ [4/21/06 11:58:52:406 EDT] 00000035 IndexedDisk E TRAS0014I: The following exception was logged java.lang.ClassNotFoundException: mypackage.BookVObj at com.ibm.ws.classloader.CompoundClassLoader.findClass( CompoundClassLoader.java(Compiled Code)) at com.ibm.ws.classloader.CompoundClassLoader.loadClass( CompoundClassLoader.java:414) ------------------------------------------------------ ------------------------------------------------------ where BookVObj is my value object for the cache. But again, in the BookVObjManager, since it could not find the value object from cache, it was loaded from database and things seems to be working fine. So what do I need to do to get rid of that exception? The following is my cache.ccf setup for the region. ------------------------------------------------------ ------------------------------------------------------ jcs.region.listDS=DC jcs.region.listDS.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes jcs.region.listDS.cacheattributes.MaxObjects=1200 jcs.region.listDS.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache jcs.region.listDS.elementattributes.IsEternal=false jcs.region.listDS.elementattributes.MaxLifeSeconds=10 jcs.region.listDS.elementattributes.IdleTime=1800 jcs.region.listDS.elementattributes.IsSpool=true jcs.region.listDS.elementattributes.IsRemote=true jcs.region.listDS.elementattributes.IsLateral=true jcs.region.listDS.cacheattributes.UseMemoryShrinker=true jcs.region.listDS.cacheattributes.MaxMemoryIdleTimeSeconds=5 jcs.region.listDS.cacheattributes.ShrinkerIntervalSeconds=5 jcs.region.listDS.cacheattributes.MaxSpoolPerRun=500 ------------------------------------------------------ ------------------------------------------------------ Thank you for all of you help!! Eddie
