clustering database table locks

[vinhqchu]

Hello All,

I recently migrated to a cluster environment, and I've noticed my secondary server seems to lock tables causing the primary server to fail because it cannot process any transactions. Once I stop the secondary, everything is fine again. Below is the error I get:

09:15:10,552 ERROR [org.alfresco.smb.protocol] Closing session due to exception
org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
Caused by:
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update

Any ideas how to fix this?

Thank you.

[dward]

This type of transaction 'collision' is perfectly normal in a clustered environment. Alfresco has a mechanism called the RetryingTransactionHelper that normally just retries a transaction after a random back-off period if one of these errors occured. The error does not normally appear in the logs, though, unless you've changed lo4j.properties.

To help us understand whether the retrying transaction helper is in use in this case, it would be helpful if you could paste in the full stack trace from your log file, including line numbers. Thanks.

[vinhqchu]

thanks for your reply, below is the full stack trace:

09:32:49,059 ERROR [org.alfresco.smb.protocol] Closing session due to exception
org.springframework.dao.DataIntegrityViolationException: Could not execute JDBC batch update; nested exception is org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
Caused by: 
org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
   at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
   at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
   at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:253)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:309)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:182)
   at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
   at sun.reflect.GeneratedMethodAccessor461.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.orm.hibernate3.HibernateTemplate$CloseSuppressingInvocationHandler.invoke(HibernateTemplate.java:1197)
   at $Proxy109.flush(Unknown Source)
   at org.alfresco.repo.domain.hibernate.DirtySessionMethodInterceptor.setQueryFlushMode(DirtySessionMethodInterceptor.java:257)
   at org.alfresco.repo.node.db.hibernate.HibernateNodeDaoServiceImpl$24.doInHibernate(HibernateNodeDaoServiceImpl.java:2370)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:367)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:333)
   at org.alfresco.repo.node.db.hibernate.HibernateNodeDaoServiceImpl.getParentAssocsInternal(HibernateNodeDaoServiceImpl.java:2374)
   at org.alfresco.repo.node.db.hibernate.HibernateNodeDaoServiceImpl.getParentAssocs(HibernateNodeDaoServiceImpl.java:2405)
   at sun.reflect.GeneratedMethodAccessor242.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
   at org.alfresco.repo.transaction.TransactionalDaoInterceptor.invoke(TransactionalDaoInterceptor.java:68)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.domain.hibernate.DirtySessionMethodInterceptor.invoke(DirtySessionMethodInterceptor.java:381)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy59.getParentAssocs(Unknown Source)
   at org.alfresco.repo.node.db.DbNodeServiceImpl.getParentAssocs(DbNodeServiceImpl.java:1255)
   at org.alfresco.repo.node.AbstractNodeServiceImpl.getParentAssocs(AbstractNodeServiceImpl.java:578)
   at sun.reflect.GeneratedMethodAccessor178.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
   at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invoke(SingleEntryTransactionResourceInterceptor.java:127)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy61.getParentAssocs(Unknown Source)
   at sun.reflect.GeneratedMethodAccessor178.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.alfresco.repo.service.StoreRedirectorProxyFactory$RedirectorInvocationHandler.invoke(StoreRedirectorProxyFactory.java:221)
   at $Proxy62.getParentAssocs(Unknown Source)
   at sun.reflect.GeneratedMethodAccessor178.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
   at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:241)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:241)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:280)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:280)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy61.getParentAssocs(Unknown Source)
   at org.alfresco.repo.rule.ruletrigger.SingleNodeRefPolicyRuleTrigger.policyBehaviour(SingleNodeRefPolicyRuleTrigger.java:78)
   at sun.reflect.GeneratedMethodAccessor471.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.alfresco.repo.policy.JavaBehaviour$JavaMethodInvocationHandler.invoke(JavaBehaviour.java:179)
   at $Proxy117.onUpdateNode(Unknown Source)
   at org.alfresco.repo.node.AbstractNodeServiceImpl.invokeOnUpdateNode(AbstractNodeServiceImpl.java:293)
   at org.alfresco.repo.node.db.DbNodeServiceImpl.addAspect(DbNodeServiceImpl.java:581)
   at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
   at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invokeInternal(SingleEntryTransactionResourceInterceptor.java:163)
   at org.alfresco.repo.transaction.SingleEntryTransactionResourceInterceptor.invoke(SingleEntryTransactionResourceInterceptor.java:138)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy61.addAspect(Unknown Source)
   at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.alfresco.repo.service.StoreRedirectorProxyFactory$RedirectorInvocationHandler.invoke(StoreRedirectorProxyFactory.java:221)
   at $Proxy62.addAspect(Unknown Source)
   at sun.reflect.GeneratedMethodAccessor649.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:281)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:187)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:154)
   at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:241)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.MLPropertyInterceptor.invoke(MLPropertyInterceptor.java:241)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:146)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.node.NodeRefPropertyMethodInterceptor.invoke(NodeRefPropertyMethodInterceptor.java:146)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy61.addAspect(Unknown Source)
   at org.alfresco.repo.model.filefolder.TempFileMarkerInterceptor.invoke(TempFileMarkerInterceptor.java:112)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.model.ml.MLContentInterceptor.invoke(MLContentInterceptor.java:131)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.model.filefolder.MLTranslationInterceptor.invoke(MLTranslationInterceptor.java:210)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at net.sf.acegisecurity.intercept.method.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:80)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:49)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:301)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy102.create(Unknown Source)
   at org.alfresco.filesys.smb.server.repo.CifsHelper.createNode(CifsHelper.java:367)
   at org.alfresco.filesys.smb.server.repo.ContentDiskDriver.createFile(ContentDiskDriver.java:1474)
   at org.alfresco.filesys.smb.server.NTProtocolHandler.procNTCreateAndX(NTProtocolHandler.java:5537)
   at org.alfresco.filesys.smb.server.NTProtocolHandler.runProtocol(NTProtocolHandler.java:317)
   at org.alfresco.filesys.smb.server.SMBSrvSession.runHandler(SMBSrvSession.java:1489)
   at org.alfresco.filesys.smb.server.SMBSrvSession.run(SMBSrvSession.java:1390)
   at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.BatchUpdateException: ORA-00001: unique constraint (STAR.SYS_C0034434) violated

   at oracle.jdbc.driver.DatabaseError.throwBatchUpdateException(DatabaseError.java:343)
   at oracle.jdbc.driver.OraclePreparedStatement.executeBatch(OraclePreparedStatement.java:10698)
   at org.apache.commons.dbcp.DelegatingStatement.executeBatch(DelegatingStatement.java:294)
   at org.hibernate.jdbc.BatchingBatcher.doExecuteBatch(BatchingBatcher.java:48)
   at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:246)
   … 126 more‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

below is the stack trace when it got really bad and I had to stop the secondary:

11:20:03,553 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:04,069 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:04,444 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:04,569 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:05,537 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:05,803 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more
11:20:05,944 ERROR [org.hibernate.engine.ActionQueue] could not release a cache lock
org.hibernate.cache.CacheException: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at org.hibernate.cache.EhCache.put(EhCache.java:128)
   at org.hibernate.cache.UpdateTimestampsCache.invalidate(UpdateTimestampsCache.java:69)
   at org.hibernate.engine.ActionQueue.afterTransactionCompletion(ActionQueue.java:217)
   at org.hibernate.impl.SessionImpl.afterTransactionCompletion(SessionImpl.java:424)
   at org.hibernate.jdbc.JDBCContext.afterTransactionCompletion(JDBCContext.java:229)
   at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:174)
   at org.springframework.orm.hibernate3.HibernateTransactionManager.doRollback(HibernateTransactionManager.java:581)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.doRollbackOnCommitException(AbstractPlatformTransactionManager.java:795)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:682)
   at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:624)
   at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:307)
   at org.alfresco.util.transaction.SpringAwareUserTransaction.commit(SpringAwareUserTransaction.java:445)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:322)
   at org.alfresco.repo.audit.AuditComponentImpl.auditImpl(AuditComponentImpl.java:314)
   at org.alfresco.repo.audit.AuditComponentImpl.audit(AuditComponentImpl.java:229)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:69)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:107)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:176)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:210)
   at $Proxy85.getReader(Unknown Source)
   at org.alfresco.repo.jscript.RhinoScriptProcessor.execute(RhinoScriptProcessor.java:136)
   at org.alfresco.repo.processor.ScriptServiceImpl.executeScript(ScriptServiceImpl.java:168)
   at com.sta.rs.repo.jscript.ExecuteScriptJob.execute(ExecuteScriptJob.java:170)
   at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
   at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:529)
Caused by: net.sf.ehcache.distribution.RemoteCacheException: Error doing remove to remote peer. Message was: no such object in table
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:230)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.notifyElementUpdated(RMISynchronousCacheReplicator.java:180)
   at net.sf.ehcache.event.RegisteredEventListeners.notifyElementUpdated(RegisteredEventListeners.java:124)
   at net.sf.ehcache.Cache.put(Cache.java:675)
   at net.sf.ehcache.Cache.put(Cache.java:618)
   at org.hibernate.cache.EhCache.put(EhCache.java:119)
   … 25 more
Caused by: java.rmi.NoSuchObjectException: no such object in table
   at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:247)
   at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
   at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
   at net.sf.ehcache.distribution.RMICachePeer_Stub.remove(Unknown Source)
   at net.sf.ehcache.distribution.RMISynchronousCacheReplicator.replicateRemovalNotification(RMISynchronousCacheReplicator.java:228)
   … 30 more‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍