tim(a)nwresearch.com [http://community.jboss.org/people/tim%40nwresearch.com] created the discussion "Error: relation "jbm_dual" already exists" To view the discussion, visit: http://community.jboss.org/message/581729#581729 -------------------------------------------------------------- I've set up jboss messaging in a 2 node Jboss 4.2.3 cluster with a postgresql database for shared jboss messaging datastore.  When the second node is started, I see errors in the log like the second node is trying to recreate the messaging database tables. 2011-01-18 18:04:55,891 DEBUG [org.jboss.messaging.core.impl.JDBCSupport] Failed to execute: CREATE TABLE JBM _DUAL (DUMMY INTEGER, PRIMARY KEY (DUMMY)) org.postgresql.util.PSQLException: ERROR: relation "jbm_dual" already exists         at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2062)         at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1795)         at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:257)         at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:479)         at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:353)         at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:299)         at org.jboss.resource.adapter.jdbc.WrappedStatement.executeUpdate(WrappedStatement.java:249)         at org.jboss.messaging.core.impl.JDBCSupport.createSchema(JDBCSupport.java:301)         at org.jboss.messaging.core.impl.JDBCSupport.start(JDBCSupport.java:167)         at org.jboss.messaging.core.impl.JDBCPersistenceManager.start(JDBCPersistenceManager.java:149)         at org.jboss.messaging.core.jmx.JDBCPersistenceManagerService.startService(JDBCPersistenceManagerServ ice.java:100)         at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)         at org.jboss.system.ServiceMBeanSupport.start(ServiceMBeanSupport.java:196)         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:597)         at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)         at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)         at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java :142) .... Similar errors are repeated for all the tables and user inserts. This seems to me like a problem, but as near as I can tell things seem to be working dispite the errors.  Is this error something to worry about?  Is there a configuration which will prevent the second node from trying to recreate the tables which already exist? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/581729#581729] Start a new discussion in JBoss Messaging at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]