Getting Lock Timout error often , cache mode is local . No other process holds the node. What could be the reason ?. I am running a batch process to preload some data , most of them succeeds and some throws the below error . I <attribute name="NodeLockingScheme">MVCC</attribute> <attribute name="CacheMode">LOCAL</attribute> <attribute name="LockAcquisitionTimeout">30000</attribute> <attribute name="lockParentForChildInsertRemove">false</attribute> org.jboss.cache.lock.TimeoutException: Unable to acquire lock on Fqn [/ASOF/AXE/20100308/14] after [30000] milliseconds for requestor [GlobalTransaction:<null>:55]! Lock held by [GlobalTransaction:<null>:50] at org.jboss.cache.mvcc.MVCCNodeHelper.acquireLock(MVCCNodeHelper.java:170) at org.jboss.cache.mvcc.MVCCNodeHelper.wrapNodeForWriting(MVCCNodeHelper.ja va:259) at org.jboss.cache.interceptors.CacheLoaderInterceptor.loadIfNeeded(CacheLo aderInterceptor.java:282) at org.jboss.cache.interceptors.CacheLoaderInterceptor.visitGetKeyValueComm and(CacheLoaderInterceptor.java:158) at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal ueCommand.java:97) at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept or(CommandInterceptor.java:116) at org.jboss.cache.interceptors.base.CommandInterceptor.handleDefault(Comma ndInterceptor.java:131) at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac tVisitor.java:110) at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal ueCommand.java:97) at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept or(CommandInterceptor.java:116) at org.jboss.cache.interceptors.TxInterceptor.attachGtxAndPassUpChain(TxInt erceptor.java:284) at org.jboss.cache.interceptors.TxInterceptor.handleDefault(TxInterceptor.j ava:271) at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac tVisitor.java:110) at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal ueCommand.java:97) at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept or(CommandInterceptor.java:116) at org.jboss.cache.interceptors.CacheMgmtInterceptor.visitGetKeyValueComman d(CacheMgmtInterceptor.java:77) at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal ueCommand.java:97) at org.jboss.cache.interceptors.base.CommandInterceptor.invokeNextIntercept or(CommandInterceptor.java:116) at org.jboss.cache.interceptors.InvocationContextInterceptor.handleAll(Invo cationContextInterceptor.java:178) at org.jboss.cache.interceptors.InvocationContextInterceptor.handleDefault( InvocationContextInterceptor.java:130) at org.jboss.cache.commands.AbstractVisitor.visitGetKeyValueCommand(Abstrac tVisitor.java:110) at org.jboss.cache.commands.read.GetKeyValueCommand.acceptVisitor(GetKeyVal ueCommand.java:97) at org.jboss.cache.interceptors.InterceptorChain.invoke(InterceptorChain.ja va:265) at org.jboss.cache.invocation.CacheInvocationDelegate.get(CacheInvocationDe legate.java:448) at org.jboss.cache.pojo.impl.InternalHelper.get(InternalHelper.java:100) at org.jboss.cache.pojo.impl.InternalHelper.getPojoReference(InternalHelper .java:47) at org.jboss.cache.pojo.impl.PojoCacheDelegate.exists(PojoCacheDelegate.jav a:352) at org.jboss.cache.pojo.impl.PojoCacheImpl.exists(PojoCacheImpl.java:236) at com.trg.cache.CacheManager.exists(CacheManager.java:139) at com.trg.cache.CacheManager.detach(CacheManager.java:169) at com.trg.ricemanager.TemporalCacheManager.clearCache(TemporalCacheManager .java:349) at com.trg.ricemanager.TemporalCacheManager.clearAllFundsCache(TemporalCach eManager.java:313) at com.trg.ricemanager.TemporalCacheManager$AsOfDataPreloadThread.run(Tempo ralCacheManager.java:447) INFO 14 Apr 16:59:15 [TemporalDataPreloadThread] ricemanager.TemporalCacheManager (TemporalCacheManager.java:355) - Cleared cache Successfully for the fund id 15 and for asOfDate 20100308 Regards, Kavitha Durai, The Rohatyn Group, 212-984-3512. This e-mail communication and any attachments may contain confidential and privileged information and are for use by the intended addressee(s) only. If you are not the intended addressee, you have received this communication in error. Any dissemination or reproduction of this email or its contents is strictly prohibited and may be unlawful. If you suspect you have received this communication in error, please notify us immediately by replying to this message and delete it from your computer.Thank you.