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Posted to users@tomcat.apache.org by Raquel Hernández Martinez <rh...@evendor.es> on 2009/05/29 12:35:14 UTC
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)
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Re: Apache Tomcat hangs
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----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
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RE: Apache Tomcat hangs
Posted by Martin Gainty <mg...@hotmail.com>.
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 {
.......
143 if (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 Vertraulichkeitanmerkung/Note de déni et de confidentialité
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> Date: Fri, 29 May 2009 12:35:14 +0200
> Subject: Apache Tomcat hangs
> From: rhernandez@evendor.es
> To: users@tomcat.apache.org
>
> 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)
>
>
>
>
>
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>
_________________________________________________________________
Windows Live™: Keep your life in sync.
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Re: Apache Tomcat hangs
Posted by Pid <pi...@pidster.com>.
On 23/08/2009 15:11, Len Popp wrote:
> 2009/8/23 Pid<pi...@pidster.com>:
>> 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
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Re: Apache Tomcat hangs
Posted by Len Popp <le...@gmail.com>.
2009/8/23 Pid <pi...@pidster.com>:
> 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
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Re: Apache Tomcat hangs
Posted by Pid <pi...@pidster.com>.
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
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Re: Apache Tomcat hangs
Posted by fps <fp...@semanlink.net>.
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.
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Re: Apache Tomcat hangs
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----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
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Re: Apache Tomcat hangs
Posted by Raquel Hernández Martinez <rh...@evendor.es>.
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-----
>
>
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>
Re: Apache Tomcat hangs
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----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
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