Hi Al, Thanks for your reply.
Actually, I made a remote cache POC, and tried running in windows environment. Which works perfectly. I Had two clients and one server on windows boxes: Windows Box1: Client1 Windows Box2: Client2 and Remote Cache Server In this case, with same test program (given below in same mail thread), client1 puts object on remote server and client2 reads it, then change it then after client-1 picks updated object again. The problem is being faced only in Linux environment. Linux Box1: Client1 Linux Box2: Client2 and Remote Cache Server Scenario-1: When I put object from client-2 and access it in client-1, it is fetched successfully. But when I update it in client-1 and pushed it again then clien-2 does not access the object with same ID. Even when I try again to access it from client-1, null pointer exception comes. Scenario-2: When I put object from client-1 and access it in client-2, it never fetched. What I interpreted, the core problem in putting data through client-1 which is running on remote machine. Why this is happening? Need experts help. Thanks & Regards, Narendra Verma -----Original Message----- From: Alistair Forbes [mailto:alistair.for...@2e-systems.com] Sent: Friday, December 30, 2011 1:46 AM To: JCS Users List Subject: Re: Need Help on JCS Remote Cache Hi Narendra, Try checking out the source code - the unit tests cover pretty much all test cases. I did not look at your problem in detail, but it looks like you are assuming that you would get back references to objects. Anything that goes remote is a copy of the original object - so no remote objects. Regards Al On 12/28/2011 02:49 PM, Narendra Verma wrote: > Thanks Thomas. > > Thanks& Regards, > Narendra Verma > > > -----Original Message----- > From: Thomas Vandahl [mailto:t...@apache.org] > Sent: Wednesday, December 28, 2011 7:17 PM > To: Commons Users List > Cc: JCS Users List > Subject: Re: Need Help on JCS Remote Cache > > On 26.12.11 09:11, Narendra Verma wrote: >> Hi All, >> >> I have made setup of JCS in my Linux environment and trying to make a POC >> using Remote Cache. > I cannot help you much with this problem. Just a hint that the users > list for JCS changed to u...@commons.apache.org. I redirected your > message to there. > > Bye, Thomas. > > >> My System Setup: >> >> >> * RMI Server : Running on 10.55.164.215 (using RMI Start up Servlet) >> >> * Client-1: Running on box 10.55.164.215 on same machine where serer >> is running >> >> * Client-2: Running on box 10.55.164.45 >> >> >> My Configuration Files: >> >> * Server Configuration >> >> >> # ---------------------------------------------- >> # Registry used to register and provide the >> # IRemoteCacheService service. >> registry.host=10.55.164.215 >> registry.port=1102 >> # call back port to local caches. >> remote.cache.service.port=1102 >> # rmi socket factory timeout >> remote.cache.rmiSocketFactoryTimeoutMillis=5000 >> # cluster setting >> remote.cluster.LocalClusterConsistency=false >> remote.cluster.AllowClusterGet=false >> # ---------------------------------------------- >> >> # DEFAULT CACHE REGION >> jcs.default= >> jcs.default.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes >> jcs.default.cacheattributes.MaxObjects=1000 >> jcs.default.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache >> >> # PRE-DEFINED CACHE REGIONS >> jcs.region.userCache= >> jcs.region.userCache.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes >> jcs.region.userCache.cacheattributes.MaxObjects=1000 >> jcs.region.userCache.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache >> jcs.region.userCache.cacheattributes.UseMemoryShrinker=false >> jcs.region.userCache.cacheattributes.MaxMemoryIdleTimeSeconds=3600 >> jcs.region.userCache.cacheattributes.ShrinkerIntervalSeconds=60 >> jcs.region.userCache.cacheattributes.MaxSpoolPerRun=500 >> jcs.region.userCache.elementattributes=org.apache.jcs.engine.ElementAttributes >> jcs.region.userCache.elementattributes.IsEternal=false >> >> >> >> >> >> >> * Client-1 and Client-2 Configuration at separate boxes - See the >> above in System Setup Section >> # DEFAULT CACHE REGION >> # sets the default aux value for any non configured caches >> jcs.default=RC >> jcs.default.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes >> jcs.default.cacheattributes.MaxObjects=1000 >> jcs.default.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache >> jcs.default.elementattributes.IsEternal=false >> jcs.default.elementattributes.MaxLifeSeconds=3600 >> jcs.default.elementattributes.IdleTime=1800 >> jcs.default.elementattributes.IsSpool=true >> jcs.default.elementattributes.IsRemote=true >> jcs.default.elementattributes.IsLateral=false >> >> # CACHE REGIONS AVAILABLE >> >> # Regions preconfigured for caching >> jcs.region.userCache=RC >> jcs.region.userCache.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes >> jcs.region.userCache.cacheattributes.MaxObjects=1200 >> jcs.region.userCache.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache >> jcs.region.userCache.elementattributes.IsEternal=false >> jcs.region.userCache.elementattributes.MaxLifeSeconds=7200 >> jcs.region.userCache.elementattributes.IdleTime=1800 >> jcs.region.userCache.elementattributes.IsSpool=true >> jcs.region.userCache.elementattributes.IsRemote=true >> jcs.region.userCache.elementattributes.IsLateral=false >> >> # Remote RMI Cache set up to failover >> # This remote client does not receive >> jcs.auxiliary.RC=org.apache.jcs.auxiliary.remote.RemoteCacheFactory >> jcs.auxiliary.RC.attributes=org.apache.jcs.auxiliary.remote.RemoteCacheAttributes >> jcs.auxiliary.RC.attributes.FailoverServers=10.55.164.215:1102 >> jcs.auxiliary.RC.attributes.LocalPort=1202 >> jcs.auxiliary.RC.attributes.RemoveUponRemotePut=true >> jcs.auxiliary.RC.attributes.RmiSocketFactoryTimeoutMillis=5000 >> jcs.auxiliary.RC.attributes.GetOnly=false >> jcs.auxiliary.RC.attributes.Receive=true >> >> >> >> >> >> >> >> Client Test Programs: >> >> Input parameters while running client-1 : java com.brightsky.util.JCSTest >> /cache-client1.ccf >> Input parameters while running client-2 : java com.brightsky.util.JCSTest >> /cache.ccf-client1 >> >> >> package com.brightsky.util; >> import java.util.Date; >> >> /* >> * This code is property of BrightSky, Inc. Use, duplication and disclosure >> * in any form without permission of copyright holder is prohibited. >> * >> * (C) Copyright BrightSky, Inc. 2011. All rights reserved. >> */ >> >> /** >> * @author nverma >> * >> */ >> public class JCSTest { >> public static void main(String a[]) throws InterruptedException { >> >> System.out.println("\n >> =======================================================================================\n" >> ); >> System.out.println("\n =================================== QA Node >> - "+a[0]+ "================================\n" ); >> System.out.println("\n >> =======================================================================================\n" >> ); >> >> System.out.println("\n >> ----------------------------------Initializing JCS....\n" ); >> >> >> CacheManager cm = CacheManager.getInstance(a[0]); >> >> System.out.println("\n >> ----------------------------------Initialized Successfully.\n" ); >> >> int userId = 1; >> int notificationCount = 10 ; >> int loopCount = 5 ; >> int threadSleepSec = 2 ; >> >> >> userId = 1; >> notificationCount =10; >> loopCount =5; >> threadSleepSec =2; >> >> UserCacheObj userObject; >> // If no, then write and fetch in loop >> // if yes, no write only fetch object of passed userid >> if("no".equals(a[6])){ >> >> // Create Object >> userObject = new UserCacheObj(); >> userObject.setUserId(userId); >> userObject.setNotificationCount(notificationCount); >> >> System.out.println("\n >> ----------------------------------Storing object into cache....\n" ); >> // Store the object into cache >> cm.storeUserbj(userObject); >> >> System.out.println("\n ----------------------------------Stored >> Successfully.\n" ); >> >> } >> >> >> System.out.println("\n ---------------Starting loop to fetch and >> increment notification count for userId ["+userId+"] .....\n" ); >> >> for(int i=1; i<=loopCount; i++){ >> >> System.out.println("\n -----------[Attemp : "+i+"] \n" ); >> >> Date date = new Date(); >> >> userObject = cm.getUserObj(userId); >> >> System.out.println("\n ----------- ["+date+"] Fetched >> Notification Count = "+userObject.getNotificationCount()); >> >> int notificationCnt = userObject.getNotificationCount() + 1; >> >> userObject.setNotificationCount(notificationCnt); >> >> date = new Date(); >> >> System.out.println("\n ----------- Incremented notification >> count ["+notificationCnt+"] "); >> >> cm.storeUserbj(userObject); >> >> System.out.println("\n ----------- ... ["+date+"] Pushed to >> updated object "); >> >> >> Thread.sleep(1000 * threadSleepSec); >> >> } >> >> System.out.println("\n ----------- Loop End. !!!! Good Bye >> !!!!\n" ); >> >> } >> } >> >> >> >> Question and Problem: >> >> When I put any object from either client-1 or client-2 then server shows log >> that it is creating listener for corresponding clients. And event is put >> successfully. >> >> Server logs on Client-1 Run >> >> 2011-12-25 15:46:12,801 INFO >> [org.apache.jcs.auxiliary.remote.server.RemoteCacheServer] (RMI TCP >> Connection(78)-10.55.164.145) adding vm listener under new id = [46], >> listenerAddress [127.0.0.1] >> 2011-12-25 15:46:12,801 INFO >> [org.apache.jcs.auxiliary.remote.server.RemoteCacheServer] (RMI TCP >> Connection(78)-10.55.164.145) Region userCache's listener size = 2 >> >> Server logs on Client-2 Run >> >> 2011-12-25 16:04:11,509 INFO >> [org.apache.jcs.auxiliary.remote.server.RemoteCacheServer] (RMI TCP >> Connection(91)-10.55.164.215) adding vm listener under new id = [48], >> listenerAddress [10.55.164.215] >> 2011-12-25 16:04:11,509 INFO >> [org.apache.jcs.auxiliary.remote.server.RemoteCacheServer] (RMI TCP >> Connection(91)-10.55.164.215) Region userCache's listener size = 3 >> >> >> Scenario-1: >> When I put object from client-2 and access it in client-1, it is fetched >> successfully. But when I update it in client-1 and pushed it again then >> clien-2 does not access the object with same ID and null pointer exception >> comes. Event when I try to access it again with client-1 again null pointer >> exception comes. Need to confirm why object is not accessible after updating >> by any of the client? >> >> Scenario-2: >> When I put object from client-1 and access it in client-2, it never fetched. >> Need to confirm why client-2 never access the object put by the client-1? >> Where client-1 access once if client-2 puts. >> >> >> Please help/guide me to resolve these issues. >> >> Thanks& Regards, >> Narendra Verma >> >> >> ________________________________ >> NOTICE TO RECIPIENT: THIS E-MAIL (INCLUDING ANY ATTACHMENTS) IS MEANT FOR >> ONLY THE INTENDED RECIPIENT OF THE TRANSMISSION, MAY CONTAIN CONFIDENTIAL >> INFORMATION, AND IS PROTECTED BY LAW. IF YOU RECEIVED THIS E-MAIL IN ERROR, >> PLEASE IMMEDIATELY NOTIFY THE SENDER OF THE ERROR BY RETURN E-MAIL, DELETE >> THIS COMMUNICATION AND SHRED ANY ATTACHMENTS. UNAUTHORIZED REVIEW, USE, >> DISSEMINATION, DISTRIBUTION, COPYING OR TAKING OF ANY ACTION BASED ON THIS >> COMMUNICATION IS STRICTLY PROHIBITED. >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org > For additional commands, e-mail: jcs-users-h...@jakarta.apache.org > -- Alistair Forbes 2e Systems Tel: +49 - 6196 - 95058 17 Fax: +49 - 6196 - 95058 94 E-mail: alistair.for...@2e-systems.com Address: 2e Systems GmbH, Koenigsteiner Str. 87, 65812 Bad Soden am Taunus Company registration: Amtsgericht Koenigstein (Germany), HRB 7303 Directors: Philip Douglas, Alistair Forbes http://www.2e-systems.com - making your business fly! --------------------------------------------------------------------- To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org For additional commands, e-mail: jcs-users-h...@jakarta.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: jcs-users-unsubscr...@jakarta.apache.org For additional commands, e-mail: jcs-users-h...@jakarta.apache.org
