Re: Apache Tomcat hangs
On 23/08/2009 15:11, Len Popp wrote: 2009/8/23 Pid: On 23/08/2009 11:08, fps wrote: I got this kind of exception with a jsp defined with session="false" (in the <%@ page... %>section at the top of the file) including another jsp which was not including that session="false" directive Which kind of exception? Which version of Tomcat? Which version of the JVM? OS? What do the logs say? fps was answering, not asking. The entire thread can be seen here: http://www.nabble.com/Apache-Tomcat-hangs-td23777681.html My apologies - my mail server must be dropping messages... p - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
2009/8/23 Pid : > On 23/08/2009 11:08, fps wrote: >> >> I got this kind of exception with a jsp defined with session="false" (in the >> <%@ page... %> section at the top of the file) including another jsp which >> was not including that session="false" directive >> > > Which kind of exception? > Which version of Tomcat? > Which version of the JVM? > OS? > What do the logs say? fps was answering, not asking. The entire thread can be seen here: http://www.nabble.com/Apache-Tomcat-hangs-td23777681.html -- Len - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
On 23/08/2009 11:08, fps wrote: I got this kind of exception with a jsp defined with session="false" (in the <%@ page... %> section at the top of the file) including another jsp which was not including that session="false" directive Which kind of exception? Which version of Tomcat? Which version of the JVM? OS? What do the logs say? Please read the following, before replying: http://catb.org/~esr/faqs/smart-questions.html OK? p - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
I got this kind of exception with a jsp defined with session="false" (in the <%@ page... %> section at the top of the file) including another jsp which was not including that session="false" directive -- View this message in context: http://www.nabble.com/Apache-Tomcat-hangs-tp23777681p25101940.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
Hi Christopher, my jsp invoke to the servlet and it writes a pdf into a file ant send it by email. I need this functionality because it´s the user who decides to generate or not this report. My version of jasper report it´s 2.0, I don´t know if it´s can be a bug for this version, because my tomcat hangs when it´s generate a pdf and after one hour appears this error. Do you think that this can be hang the tomcat? I´ll try set session="true" and test it. Many thanks for your help Chris. Raquel > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Raquel, > > On 5/29/2009 6:35 AM, Raquel Hernández Martinez wrote: >> I am using apache Tomcat 5.5 which is set up on a hp-ux machine. >> my application uses jaspert-reports >> At times during we use jaspert-rerpot for generate to a pdf, get an >> error >> as shown below, and this causes the servers hangs and can not log on the >> tomcat console and application. > > Ugh... are you really using JSP to generate a PDF through jasper > reports? Does the JSP actually generate a PDF to the output stream, or > do you write the PDF to a file and then redirect to it or something like > that? > > JSP wasn't designed to generate binary content, although it /can/ be > beaten into submission in order to do so. > >> SEVERE: Exception initializing page context >> java.lang.IllegalStateException: Cannot create a session after the >> response has been committed >> at org.apache.catalina.connector.Request.doGetSession(Unknown >> Source) > > [snip] > >> at >> org.apache.catalina.core.ApplicationDispatcher.include(Unknown >> Source) >> at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown >> Source) >> at >> org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122) > > The problem is that you are "including" one page from another, and the > page you are calling requires a session. The including page apparently > does /not/ need a session, and so the included page tries to create one. > > In spite of the fact that the servlet spec specifically forbids this, > Tomcat is trying it, anyway, and when the session is created, a > Set-Cookie header needs to be sent to the browser. If the headers have > already been sent, you get this error. > > Solutions? > > I'd set session="true" in "Alarma Detalle Service.jsp" and see if that > helps. > > I'd also try not to generate PDF output from a JSP ;) > > - -chris > -BEGIN PGP SIGNATURE- > Version: GnuPG v1.4.9 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkogrMEACgkQ9CaO5/Lv0PD7zwCfcsAPP4svbeje8grUXb/bhtMA > CZwAoK/kH6NgoELp7VDwXT5CIxkHUiC0 > =VxRQ > -END PGP SIGNATURE- > > - > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
Re: Apache Tomcat hangs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Raquel, On 5/29/2009 6:35 AM, Raquel Hernández Martinez wrote: > I am using apache Tomcat 5.5 which is set up on a hp-ux machine. > my application uses jaspert-reports > At times during we use jaspert-rerpot for generate to a pdf, get an error > as shown below, and this causes the servers hangs and can not log on the > tomcat console and application. Ugh... are you really using JSP to generate a PDF through jasper reports? Does the JSP actually generate a PDF to the output stream, or do you write the PDF to a file and then redirect to it or something like that? JSP wasn't designed to generate binary content, although it /can/ be beaten into submission in order to do so. > SEVERE: Exception initializing page context > java.lang.IllegalStateException: Cannot create a session after the > response has been committed > at org.apache.catalina.connector.Request.doGetSession(Unknown Source) [snip] > at org.apache.catalina.core.ApplicationDispatcher.include(Unknown > Source) > at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown > Source) > at > org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122) The problem is that you are "including" one page from another, and the page you are calling requires a session. The including page apparently does /not/ need a session, and so the included page tries to create one. In spite of the fact that the servlet spec specifically forbids this, Tomcat is trying it, anyway, and when the session is created, a Set-Cookie header needs to be sent to the browser. If the headers have already been sent, you get this error. Solutions? I'd set session="true" in "Alarma Detalle Service.jsp" and see if that helps. I'd also try not to generate PDF output from a JSP ;) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkogrMEACgkQ9CaO5/Lv0PD7zwCfcsAPP4svbeje8grUXb/bhtMA CZwAoK/kH6NgoELp7VDwXT5CIxkHUiC0 =VxRQ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Martin, Wow, you did a lot of work! On 5/29/2009 8:47 AM, Martin Gainty wrote: > but none of this *should happen if the jsp execution did'nt double submit* > relevant bits of your jsp code located at What does this mean? >> at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(Unknown >> Source) >> at >> org.apache.jsp.jsp.Alarma_Detalle_jsp._jspService(Alarma_Detalle_jsp.java:37) > > //Why is this code (re)referencing getPageContext It's not. _initialize() is simply calling getSession() because the page declared session="true" (or failed to declare session="false", since it's the default). - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkogrXYACgkQ9CaO5/Lv0PDJRQCdG26EbqAvtIVaisXpqAbUPdMI JeoAoJ+xrQFQYp+TszfKwS9AAOk4l73z =rXL9 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Apache Tomcat hangs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Raquel, On 5/29/2009 6:35 AM, Raquel Hernández Martinez wrote: > I am using apache Tomcat 5.5 which is set up on a hp-ux machine. > my application uses jaspert-reports > At times during we use jaspert-rerpot for generate to a pdf, get an error > as shown below, and this causes the servers hangs and can not log on the > tomcat console and application. Ugh... are you really using JSP to generate a PDF through jasper reports? Does the JSP actually generate a PDF to the output stream, or do you write the PDF to a file and then redirect to it or something like that? JSP wasn't designed to generate binary content, although it /can/ be beaten into submission in order to do so. > SEVERE: Exception initializing page context > java.lang.IllegalStateException: Cannot create a session after the > response has been committed > at org.apache.catalina.connector.Request.doGetSession(Unknown Source) [snip] > at org.apache.catalina.core.ApplicationDispatcher.include(Unknown > Source) > at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown > Source) > at > org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122) The problem is that you are "including" one page from another, and the page you are calling requires a session. The including page apparently does /not/ need a session, and so the included page tries to create one. In spite of the fact that the servlet spec specifically forbids this, Tomcat is trying it, anyway, and when the session is created, a Set-Cookie header needs to be sent to the browser. If the headers have already been sent, you get this error. Solutions? I'd set session="true" in "Alarma Detalle Service.jsp" and see if that helps. I'd also try not to generate PDF output from a JSP ;) - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkogrMEACgkQ9CaO5/Lv0PD7zwCfcsAPP4svbeje8grUXb/bhtMA CZwAoK/kH6NgoELp7VDwXT5CIxkHUiC0 =VxRQ -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
RE: Apache Tomcat hangs
unwinding the stack
org.apache.jasper.runtime.PageContextImpl private void _initialize(Servlet
servlet, ServletRequest request,
127 ServletResponse response, String errorPageURL,
128 boolean needsSession, int bufferSize, boolean
autoFlush)
129 throws IOException {
...
143if (request instanceof HttpServletRequest && needsSession)
144 this.session = ((HttpServletRequest)
request).getSession();
145 if (needsSession && session == null)
146 throw new IllegalStateException(
147 "Page needs a session and none
is available");
which is called by org.apache.jasper.runtime.JspFactoryImpl
internalGetPageContext
89 private PageContext internalGetPageContext(Servlet servlet,
ServletRequest request,
90 ServletResponse response, String errorPageURL, boolean
needsSession,
91 int bufferSize, boolean autoflush) {
92 try {
93 PageContext pc;
94 if (USE_POOL) {
95 PageContextPool pool = localPool.get();
96 if (pool == null) {
97 pool = new PageContextPool();
98 localPool.set(pool);
99 }
100 pc = pool.get();
101 if (pc == null) {
102 pc = new PageContextImpl();
103 }
104 } else {
105 pc = new PageContextImpl();
106 }
107 pc.initialize(servlet, request, response, errorPageURL,
108 needsSession, bufferSize, autoflush);
internalGetPageContext is referenced in the run method as shown
148 public Object run() {
149 return factory.internalGetPageContext(servlet, request,
response,
150 errorPageURL, needsSession, bufferSize, autoflush);
151 }
but none of this *should happen if the jsp execution did'nt double submit*
relevant bits of your jsp code located at
> at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(Unknown
> Source)
> at
> org.apache.jsp.jsp.Alarma_Detalle_jsp._jspService(Alarma_Detalle_jsp.java:37)
//Why is this code (re)referencing getPageContext
> at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
> at org.apache.jasper.servlet.JspServletWrapper.service(Unknown
> Source)
> at org.apache.catalina.core.ApplicationDispatcher.include(Unknown
> Source)
> at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown
> Source)
> at
> org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122)
please display entire contents of
$CATALINA_HOME/work/Catalina/localhost/WebAppName/org/apache/jsp/jsp/Alrama_Detallet_Service.jsp
Alarma_Detalle_jsp.java
Saludos Cordiales desde EEUU!
Martin Gainty
GMT+5(esta semana)
__
Jogi és Bizalmassági kinyilatkoztatás/Verzicht und
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> Date: Fri, 29 May 2009 12:35:14 +0200
> Subject: Apache Tomcat hangs
> From: rhernan...@evendor.es
> To: users@tomcat.apache.org
>
> Hello
>
> I am using apache Tomcat 5.5 which is set up on a hp-ux
Apache Tomcat hangs
Hello I am using apache Tomcat 5.5 which is set up on a hp-ux machine. my application uses jaspert-reports At times during we use jaspert-rerpot for generate to a pdf, get an error as shown below, and this causes the servers hangs and can not log on the tomcat console and application . After restart of the server then the tomcat runs fine. Can anybody please tell me why does this happen? Many thanks in advance, Raquel This is my error : INFO: Server startup in 3207 ms May 29, 2009 9:27:53 AM org.apache.jasper.runtime.JspFactoryImpl internalGetPageContext SEVERE: Exception initializing page context java.lang.IllegalStateException: Cannot create a session after the response has been committed at org.apache.catalina.connector.Request.doGetSession(Unknown Source) at org.apache.catalina.connector.Request.getSession(Unknown Source) at org.apache.catalina.connector.RequestFacade.getSession(Unknown Source) at javax.servlet.http.HttpServletRequestWrapper.getSession(HttpServletRequestWrapper.java:216) at org.apache.catalina.core.ApplicationHttpRequest.getSession(Unknown Source) at org.apache.catalina.core.ApplicationHttpRequest.getSession(Unknown Source) at org.apache.jasper.runtime.PageContextImpl._initialize(Unknown Source) at org.apache.jasper.runtime.PageContextImpl.initialize(Unknown Source) at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext(Unknown Source) at org.apache.jasper.runtime.JspFactoryImpl.getPageContext(Unknown Source) at org.apache.jsp.jsp.Alarma_Detalle_jsp._jspService(Alarma_Detalle_jsp.java:37) at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(Unknown Source) at org.apache.catalina.core.ApplicationDispatcher.include(Unknown Source) at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown Source) at org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122) at org.apache.jasper.runtime.HttpJspBase.service(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(Unknown Source) at org.apache.jasper.servlet.JspServlet.serviceJspFile(Unknown Source) at org.apache.jasper.servlet.JspServlet.service(Unknown Source) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Unknown Source) at org.apache.catalina.core.ApplicationFilterChain.doFilter(Unknown Source) at org.apache.catalina.core.StandardWrapperValve.invoke(Unknown Source) at org.apache.catalina.core.StandardContextValve.invoke(Unknown Source) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Unknown Source) at org.apache.catalina.core.StandardHostValve.invoke(Unknown Source) at org.apache.catalina.valves.ErrorReportValve.invoke(Unknown Source) at org.apache.catalina.core.StandardEngineValve.invoke(Unknown Source) at org.apache.catalina.connector.CoyoteAdapter.service(Unknown Source) at org.apache.coyote.http11.Http11Processor.process(Unknown Source) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Unknown Source) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(Unknown Source) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(Unknown Source) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(Unknown Source) at java.lang.Thread.run(Thread.java:595) - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
