Обсуждение: PostgreSQL + hibernate

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

Hi,

Are you doing this as the same user that your application uses?

Maybe the application postgresql user doesn't have access to the
sequence but the default user you're connecting as does.

( You're connecting as a postgresql super-user because you have a '#' in
your command prompt - a regular user gets = ).

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.

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

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@ecircle-ag.com]
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

Hi, Chris!

I've set the sequence owner to my database user. It hasn't changed
anything.

I guess I have to connect through psql as user and then see what
happens.
If it fails, what could be my next step?

Andrey

-----Original Message-----
From: Chris [mailto:dmagick@gmail.com]
Sent: Tuesday, January 31, 2006 10:26 AM
To: Myatluk Andrey
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] PostgreSQL + hibernate

Hi,

Are you doing this as the same user that your application uses?

Maybe the application postgresql user doesn't have access to the
sequence but the default user you're connecting as does.

( You're connecting as a postgresql super-user because you have a '#' in

your command prompt - a regular user gets = ).

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.

Yes, the exception is in sequence code, but it is BECAUSE of a previous
error, at least that's what I think based on the original mail. Check
your transaction handling code... do you have finally clauses around all
data access code rolling back if needed ? Just committing in the success
case is not enough, it won't be executed on errors, and leaves you with
an unusable connection and strange errors like this.

Cheers,
Csaba.


On Tue, 2006-01-31 at 11:28, Myatluk Andrey wrote:
> 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@ecircle-ag.com]
> 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
>

"Myatluk Andrey" <Andrey.Myatluk@bercut.ru> writes:

> Hi, Chris!
>
> I've set the sequence owner to my database user. It hasn't changed
> anything.
>
> I guess I have to connect through psql as user and then see what
> happens.
> If it fails, what could be my next step?

That would depend on the error message you get.

-Doug

On Tue, Jan 31, 2006 at 10:13:05AM +0300, Myatluk Andrey wrote:
> SEVERE: ERROR: current transaction is aborted, commands ignored until
> end of transaction block Jan 30, 2006 8:21:35 PM

That error means something prior to that in the same transaction failed
and you haven't issued a rollback yet.
--
Jim C. Nasby, Sr. Engineering Consultant      jnasby@pervasive.com
Pervasive Software      http://pervasive.com    work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf       cell: 512-569-9461

Hi, all!

I was able to fix the problem, by dropping the sequence and recreating
with the username hibernate uses.

Although before that I connected to database as hibernate user and tried
to call hibernate_sequence and it worked fine.

Thank you!

Andrey

-----Original Message-----
From: Chris [mailto:dmagick@gmail.com]
Sent: Tuesday, January 31, 2006 10:26 AM
To: Myatluk Andrey
Cc: pgsql-general@postgresql.org
Subject: Re: [GENERAL] PostgreSQL + hibernate

Hi,

Are you doing this as the same user that your application uses?

Maybe the application postgresql user doesn't have access to the
sequence but the default user you're connecting as does.

( You're connecting as a postgresql super-user because you have a '#' in

your command prompt - a regular user gets = ).

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.