Hi, Csaba, Here's the original Tomcat log. From this log you can see that exception is thrown in sequence code. HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: could not get next sequence value org.apache.struts.action.RequestProcessor.processException(RequestProces sor.java:523) org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:421) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 224) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) javax.servlet.http.HttpServlet.service(HttpServlet.java:709) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) root cause org.hibernate.exception.GenericJDBCException: could not get next sequence value org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQ LStateConverter.java:91) org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java :79) org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper. java:43) org.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:96) org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(Ab stractSaveEventListener.java:91) org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGenerat edOrRequestedId(DefaultSaveOrUpdateEventListener.java:186) org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequ estedId(DefaultSaveEventListener.java:33) org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransie nt(DefaultSaveOrUpdateEventListener.java:175) org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(Def aultSaveEventListener.java:27) org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate( DefaultSaveOrUpdateEventListener.java:70) org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:557) org.hibernate.impl.SessionImpl.save(SessionImpl.java:545) org.hibernate.impl.SessionImpl.save(SessionImpl.java:541) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav a:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor Impl.java:25) java.lang.reflect.Method.invoke(Method.java:585) org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWra pper.invoke(ThreadLocalSessionContext.java:292) $Proxy0.save(Unknown Source) com.twix.webapp.registration.RegistrationSubmitAction.execute(Registrati onSubmitAction.java:66) org.apache.struts.action.RequestProcessor.processActionPerform(RequestPr ocessor.java:419) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java: 224) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432) javax.servlet.http.HttpServlet.service(HttpServlet.java:709) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) note The full stack trace of the root cause is available in the Apache Tomcat/5.5.12 logs. Apache Tomcat/5.5.12 -----Original Message----- From: Csaba Nagy [mailto:nagy@xxxxxxxxxxxxxx] Sent: Tuesday, January 31, 2006 12:44 PM To: Myatluk Andrey Cc: Postgres general mailing list Subject: Re: [GENERAL] PostgreSQL + hibernate The error you're seeing comes from before. You only see the fact that there was an error, and postgres is ignoring your queries until you roll back. I bet you have a glitch in your transaction handling code, like opening a transaction, getting an error on it, hibernate throws an error and you don't have a finally clause to roll back the transaction. HTH, Csaba. On Tue, 2006-01-31 at 08:13, Myatluk Andrey wrote: > Hi! > > I have an application, consisting of Struts 1.2 + Tomcat 5.5 + Hibernate > 3.1 + PostgreSQL 8.1 > > The application is developed on WinXP and installed on Fedora Core 4. > > On local machine everything works OK. Both databases are created from > the same script and application is the same. > > But when installed on FC, I get the following exception: > > Hibernate: select nextval ('hibernate_sequence') Jan 30, 2006 8:21:35 PM > org.hibernate.util.JDBCExceptionReporter logExceptions > WARNING: SQL Error: 0, SQLState: 25P02 > Jan 30, 2006 8:21:35 PM org.hibernate.util.JDBCExceptionReporter > logExceptions > SEVERE: ERROR: current transaction is aborted, commands ignored until > end of transaction block Jan 30, 2006 8:21:35 PM > > Although when I'm trying to call hibernate sequence it works fine. > > twix=# select nextval ('public.hibernate_sequence'); nextval > --------- > 3 > (1 row) > > twix=# select nextval ('hibernate_sequence'); nextval > --------- > 4 > (1 row) > > The sequence was created with the following command: > twix=# create sequence hibernate_sequence; CREATE SEQUENCE > > I don't see what the problem could be. > > Because of the connectivity problem could not connect to remote database > with pgAdmin. But it's the question for the next post. > > Andrey > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 3: Have you checked our extensive FAQ? > > http://www.postgresql.org/docs/faq