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Re: PostgreSQL + hibernate

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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)---------------------------
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> 
>                http://www.postgresql.org/docs/faq



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