Question

I randomly see the same error in the catalina.out log:

WARNING: SQL Error: 0, SQLState: 25P02
Sep 8, 2010 11:50:13 PM org.hibernate.util.JDBCExceptionReporter logExceptions
SEVERE: ERROR: current transaction is aborted, commands ignored until end of transaction block
org.hibernate.exception.GenericJDBCException: could not execute query
        at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103)
        at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
        at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
        at org.hibernate.loader.Loader.doList(Loader.java:2223)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
        at org.hibernate.loader.Loader.list(Loader.java:2099)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at PersistanceHelper.getTranslationByName(PersistanceHelper.java:174)
        at SearchBean.getObject(SearchBean.java:146)
        at org.apache.jsp.ajax.get_005fobject_jsp._jspService(get_005fobject_jsp.java:72)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
        at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
        at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:619)
Caused by: org.postgresql.util.PSQLException: ERROR: current transaction is aborted, commands ignored until end of transaction block
        at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1592)
        at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1327)
        at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:192)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
        at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:254)
        at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:186)
        at org.hibernate.loader.Loader.getResultSet(Loader.java:1787)
        at org.hibernate.loader.Loader.doQuery(Loader.java:674)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.doList(Loader.java:2220)

I don’t know what is the reason for that problem as I get it randomly and normally the query works just fine. m using Postgresql 8.3 and the application is in JSF 2.0. Has anyone ever dealt with such an error? What is the cause? Thanks for any suggestions.

I need to add that I’m only reading data from the database, but do not update or insert any in those queries.

——————————— edit ————————————–
This is an example query:

List object = null; 
try { 
org.hibernate.Transaction tx = session.beginTransaction(); 
Query q = session.createQuery("from Table where lower(translatedText) like lower('%" + term + "%') or lower(translatedAscii) like lower('%" + term + "%') or lower(originalAscii) like lower('%" + term + "%')"); 
object = (List<Table>) q.list(); 
} catch (Exception e) 
{ e.printStackTrace(); } 
return object; }

---

I just noticed this in the tomcat log:

Initial SessionFactory creation failed.java.lang.OutOfMemoryError: PermGen space

Could it be the reason? If I refresh the application, it tends to work normally for some time.

Best Regards,
sass.

Answer 1

It probably means some of your queries were not executed. If you have many queries in transaction, e.g.

• begin transaction
• query1
• query2
• query3
• finish transaction

and query2 throws error, then when you try to execute query3 you get this error.

• begin transaction
• query1 (succeeded)
• query2 (error, something went wrong)
• query3 (exception like yours is thrown)
• finish transaction

You should handle exception thrown from query2 and handle it. Show some error to the user, rollback transaction, never try to execute query3.

Look also here: http://www.faqs.org/docs/ppbook/x15040.htm

UPDATE

To finish transaction:

List object = null; 
try {
  org.hibernate.Transaction tx = session.beginTransaction(); 
  try { 
    Query q = session.createQuery("from Table where lower(translatedText) like lower('%" + term + "%') or lower(translatedAscii) like lower('%" + term + "%') or lower(originalAscii) like lower('%" + term + "%')"); 
    object = (List<Table>) q.list(); 
  } catch (Exception e) {
    e.printStackTrace(); 
  } finally {
    //You can safely rollback here because you are not changing anything in the DB.
    //If you change something, you should commit transaction at the end of try block,
    //and here check if it is still active and rollback if it is.
    tx.rollback();
  }
  return object; 
} catch (HibernateException e) {
  throw new RuntimeException("Could not begin transaction");
}