Send your cache.ccf files for the remote cache and local. I think that they are misconfigured. It's trying to de-serialize the object for some reason.
________________________________ From: Emilia Ipate [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 19, 2007 11:54 AM To: jcs-users@jakarta.apache.org Subject: jcs 1.2.7.9.2 remote cache server UnmarshalException Hi, all! I am currently using jcs 1.2.7.9.2 and I have 2 remote Cache Servers (a Primary one, and a Failover one). The JCS 1.2.7.9.2 says that the Remote Cache Server now holds byte arrays, this normally means that the Remote Cache Server does not need in its classpath the classes of the objects he holds. But, everytime, I am trying to get a value (from the Remote Cache Server) for a key that does not exist in Remote Cache Server, I get the Exception below. So: 1. I get the exception everytime I am asking for a new key from the Remote Cache Server (new key = the key is not on the Remote Server) 2. my application sees the Primary Remote Cache Server as being down, at connects to the Failover Cache Server. 3. after a few seconds (2-4 seconds), the application connects back to the Primary Remote Cache Server. 4. nl.swets.wise.framework.account.cache.AccountCacheKey is Serialized and it is in the classpath of nl.swets.wise.framework.account.ejb.AccountSettingsBeanImpl Here is the entire exception: [6/19/07 17:22:49:109 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,109 [Servlet.Engine.Transports : 0] ERROR org.apache.jcs.auxiliary.remote.RemoteCache - Disabling remote cache due to error: Failed to get [07391633 null null] from [accountSettingsCache] java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: nl.swets.wise.framework.account.cache.AccountCacheKey at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:310) at sun.rmi.transport.Transport$1.run(Transport.java:164) at java.security.AccessController.doPrivileged1(Native Method) at java.security.AccessController.doPrivileged(AccessController.java:389) at sun.rmi.transport.Transport.serviceCall(Transport.java:160) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:505) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.handleRequest(TCPTr ansport.java:837) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.ja va:911) at java.lang.Thread.run(Thread.java:568) at java.lang.Throwable.<init>(Throwable.java) at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRem oteCall.java:264) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:240 ) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:149) at org.apache.jcs.auxiliary.remote.server.RemoteCacheServer_Stub.get(Unknow n Source) at org.apache.jcs.auxiliary.remote.RemoteCache.get(RemoteCache.java:249) at org.apache.jcs.auxiliary.remote.RemoteCacheNoWait.get(RemoteCacheNoWait. java:126) at org.apache.jcs.auxiliary.remote.RemoteCacheNoWaitFacade.get(RemoteCacheN oWaitFacade.java:151) at org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:506 ) at org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:413 ) at org.apache.jcs.access.CacheAccess.get(CacheAccess.java:195) at nl.swets.wise.framework.core.cache.JCS.JCSCache.get(JCSCache.java) at nl.swets.wise.framework.core.cache.JCS.JCSCacheManager.getCacheObject(JC SCacheManager.java) at nl.swets.wise.framework.account.ejb.AccountSettingsBeanImpl.getByAccount ID(AccountSettingsBeanImpl.java) at nl.swets.wise.framework.account.ejb.AccountMgmtBeanImpl.getAccountSettin gs(AccountMgmtBeanImpl.java:211) at nl.swets.wise.framework.user.ejb.UserManagementBeanImpl.login(UserManage mentBeanImpl.java:1257) at nl.swets.wise.framework.user.ejb.UserManagementBean.login(UserManagement Bean.java:153) at nl.swets.wise.framework.user.ejb.EJSRemoteStatelessUserManagement_3ad69d 3a.login(EJSRemoteStatelessUserManagement_3ad69d3a.java:200) at nl.swets.wise.framework.user.ejb._UserManagement_Stub.login(_UserManagem ent_Stub.java:482) at nl.swets.wise.framework.user.ejb.UserManagementAccessBean.login(UserMana gementAccessBean.java:87) at nl.swets.wise.common.user.ui.LoginAction.execute(LoginAction.java:266) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:484) at nl.swets.wise.struts.SwetsRequestProcessor.processActionPerform(SwetsReq uestProcessor.java:65) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 274) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet.java:760) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictSe rvletInstance.java:110) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLi fecycleServlet.java:174) at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycle Servlet.java:313) at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLif ecycleServlet.java:116) at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance. java:283) at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(Vali dServletReferenceState.java:42) at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(Servle tInstanceReference.java:40) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispa tch(WebAppRequestDispatcher.java:1019) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRe questDispatcher.java:592) at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppReq uestDispatcher.java:204) at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:1 25) at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInv oker.java:286) at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocati on(CachedInvocation.java:71) at com.ibm.ws.webcontainer.cache.invocation.CacheableInvocationContext.invo ke(CacheableInvocationContext.java:116) at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(Servle tRequestProcessor.java:186) at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSELis tener.java:334) at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection .java:56) at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java: 615) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:439) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java) Caused by: java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: java.lang.ClassNotFoundException: nl.swets.wise.framework.account.cache.AccountCacheKey at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:270) at sun.rmi.transport.Transport$1.run(Transport.java:164) at java.security.AccessController.doPrivileged1(Native Method) at java.security.AccessController.doPrivileged(AccessController.java:389) at sun.rmi.transport.Transport.serviceCall(Transport.java:160) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:505) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.handleRequest(TCPTr ansport.java:837) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.ja va:911) at java.lang.Thread.run(Thread.java:568) Caused by: java.lang.ClassNotFoundException: nl.swets.wise.framework.account.cache.AccountCacheKey at java.net.URLClassLoader.findClass(URLClassLoader.java:376) at java.lang.ClassLoader.loadClass(ClassLoader.java) at java.lang.ClassLoader.loadClass(ClassLoader.java:504) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java) at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java) at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java) at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java) at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java) at java.io.ObjectInputStream.readObject(ObjectInputStream.java) at sun.rmi.server.UnicastRef.unmarshalValue(UnicastRef.java:313) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:264) at sun.rmi.transport.Transport$1.run(Transport.java:164) at java.security.AccessController.doPrivileged1(Native Method) at java.security.AccessController.doPrivileged(AccessController.java:389) at sun.rmi.transport.Transport.serviceCall(Transport.java:160) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:505) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.handleRequest(TCPTr ansport.java:837) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.ja va:911) at java.lang.Thread.run(Thread.java:568) And here it connects to the Failover Remote Cache Server: class load: org/apache/jcs/engine/ZombieCacheService class load: org/apache/jcs/auxiliary/remote/ZombieRemoteCacheService class load: org/apache/jcs/utils/struct/BoundedQueue [6/19/07 17:22:49:124 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,124 [Servlet.Engine.Transports : 0] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheMonitor - Notified of an error. [6/19/07 17:22:49:124 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,124 [Servlet.Engine.Transports : 0] DEBUG org.apache.jcs.auxiliary.remote.RemoteCache - Initiating failover, rcnf = RemoteCacheNoWaitFacade: accountSettingsCache, rca = RemoteCacheAttributes remoteHost = [localhost] remotePort = [1102] cacheName = [accountSettingsCache] removeUponRemotePut = [true] getOnly = [false] receive = [true] getTimeoutMillis = [-1] threadPoolName = [remote_cache_client] remoteType = [0] localClusterConsistency = [false] zombieQueueMaxSize = [1000] [6/19/07 17:22:49:140 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,140 [Servlet.Engine.Transports : 0] DEBUG org.apache.jcs.auxiliary.remote.RemoteCache - Found facade, calling failover [6/19/07 17:22:49:140 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,140 [Servlet.Engine.Transports : 0] INFO org.apache.jcs.auxiliary.remote.RemoteCacheNoWaitFacade - in failover for 0 class load: org/apache/jcs/auxiliary/remote/RemoteCacheFailoverRunner [6/19/07 17:22:49:156 CEST] 4edd4edd SystemOut O 2007-06-19 17:22:49,156 [Servlet.Engine.Transports : 0] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheNoWaitFacade - Failed to get. [6/19/07 17:22:49:156 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,156 [Thread-28] INFO org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - Remote cache FAILOVER RUNNING. [6/19/07 17:22:49:156 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,156 [Thread-28] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - fidx = 0 failovers.length = 2 [6/19/07 17:22:49:156 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,156 [Thread-28] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - stating at failover i = 0 [6/19/07 17:22:49:171 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,156 [Thread-28] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - Trying server [localhost:1101] at failover index i = 0 [6/19/07 17:22:49:171 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,171 [Thread-28] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - RemoteCacheAttributes for failover = RemoteCacheAttributes remoteHost = [localhost] remotePort = [1101] cacheName = [accountSettingsCache] removeUponRemotePut = [true] getOnly = [false] receive = [true] getTimeoutMillis = [-1] threadPoolName = [remote_cache_client] remoteType = [0] localClusterConsistency = [false] zombieQueueMaxSize = [1000] [6/19/07 17:22:49:171 CEST] 3e9e3e9e SystemOut O 2007-06-19 17:22:49,171 [Thread-28] DEBUG org.apache.jcs.auxiliary.remote.RemoteCacheFailoverRunner - Trying server [localhost:1102] at failover index i = 1 Might there be a bug in JCS 1.2.7.9.2 that generates the exception above, something like: - the first time you request for a key, instead of returning null, it tries to convert the empty by array to AccountCacheKey? - Does the JCS 1.2.7.9.2 still need the AccountCacheKey in it's classpath even though it says that (http://jakarta.apache.org/jcs/changes-report.html )"The remote cache now sends a byte array to the server instead of the class. This allows you to run the remote server without copies of your objects in its classpath. This makes the remote server far easier to use." ??? Please give me an advise, Emilia
