OutOfMemoryError with tomcat

I am using Tomcat 4.0, JDK 1.4.0, Java Web Services Developer Pack 1.0
When I run a servlet within Tomcat, I get a java.lang.OutOfMemoryError
I have tried to increase the memory with -Xmx3500m in the file catalina.sh which is called by startup.sh but this does not work:
When I look at the java process, the parameter "-Xmx3500m" does not appear.
(This parameter works fine when I run the same program as an application, outside Tomcat)
So in which file should I write my -Xmx3500m apart from catalina.sh ?
Thanks for any help
hr

You should introduce this parameter to CATALINA_OPTS for tomcat.
You could set it either in catalina.bat or catalina.sh file on your system.
BR
Atreedev

Similar Messages

Memory Error with Tomcat 4.1

I have a Tomcat 4.1 installation on a Linux 7.2 box. Tomcat uses
mod_jk with Apache. We are currently in a development phase and change alot of jsp's on a daily basis. Eventually it seems that Tomcat runs out of memory for the compilations and gives the following message:
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Compiling 1 source file
The system is out of resources.
Consult the following stack trace for details.
java.lang.OutOfMemoryError
After Tomcat is restarted everything appears to to be okay for a time. Eventually this problem will come back. The problem appears to be only when jsp files are changed. Running jsp's ( which were previously compiled and have been unchanged) run just fine.
In the /var/tomcat4/conf/tomcat4.conf file I have the following command
uncommented:
JAVACMD="$JAVA_HOME/bin/java -Xms6m -Xmx100m"
I am running java 1.4.1 on the Linux box.

I was looking at the Jakarta web site and under the Tomcat4.1 documentation it gives a description of what is new in 4.1. It states:
Rewritten Jasper JSP page compiler
Performance and memory efficiency improvements
Among other things. Could they have a memory leak?

Tomcat vs Apache with Tomcat connectors (mod/jk)

Is there any advantage (security, performance etc.) of running a Java web application on Apache HTTP Server with Tomcat Connectors (mod/jk) rather than directly running it on Tomcat.

This question is already answered, see here:
http://tomcat.apache.org/faq/connectors.html
Also for Tomcat/ Apache related questions, post them to the relevant mailing lists.

Problem with Tomcat 5.0

Hi there,
I have a .java file inside \WEB-INF\classes\ directory. This .java file has a "public static void main" method that calls al the other methods in the class.
I want to know if its possible for me to create an JSP file to call this .java file. If so how can i do it?
Thanks!!

NerdVix wrote:
Hi there,
I have a .java file inside \WEB-INF\classes\ directory. Wrong. .java files do you no good in that directory. Only .class files belong there.
This .java file has a "public static void main" method that calls al the other methods in the class.Fine - for testing on a command line.
I want to know if its possible for me to create an JSP file to call this .java file. If so how can i do it?What part don't you understand? Writing JSPs? Calling methods? What is a person so ignorant doing with Tomcat anyway?
It's possible to call main, but not a good idea.
%

Compiling jsp with tomcat 4

HTTP 500 server error as follows:
org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
An error occurred at line: 2 in the jsp file: /listStore.jsp
*line#2 is the usebean statement in the jsp...
NOTE: new machine, new configuration... this same servelt/jsp/bean work great on another machine with tomcat 3...
so this will have something to do with tomcat configuation... believe that the configuration is set to not compile with deprecation.. would like to know where to change that...

I guess the problem comes from jdk 1.4 ...deprecation of sun.tools.javac.Main prevents compilation in jasper...

PDF with Tomcat/Cocoon Problem !!!

Hi,
I am having problem with Tomcat/Cocoon combination for APEX PDF printing which I installed following Carl Backstrom instructions.
When a report is a region report it all works fine, but when I create a report based on a query from the reports section in Shared Components choosing report layout 'Use Generic Report Layout' I get the following error.
javax.xml.transform.TransformerException: attribute-set named #TEXT_ALIGN# does not exist
cocoon://fop_post/xsl - 148:58
Cocoon stacktrace[hide]
attribute-set named #TEXT_ALIGN# does not exist
cocoon://fop_post/xsl - 148:58
I will appreciate any feedback. I saw threads related to the same issue on this forum but they ended up covering something irrelevant.
Regards,
Vadim

Vadim,
Report queries and report region use the same generic report layout. However the processing is handled by different engines. The underlying technical problem with your case is that the substitution string #TEXT_ALIGN# is not substituted in all cases for report queries. This usually does not cause any problems, but appears not to work when using Cocoon.
I'll see that we can this resolved with the next version of APEX, however when working with report layouts, you would typically use your own RTF or XSL-FO stylesheets, where this problem would not occur. The option to use the generic report layout is only included so the data can be tested independently from the layout and is not really intended to be used as the actual layout at runtime.
The generic report layout function is mainly designed to be used for report regions.
Regards,
Marc

Old Oracle Session with Tomcat is not kiiling automatically

Hi,
I am facing a problem of increasing inactive oracle sessions with tomcat, Old Oracle sessions with tomcat are visible with new one.
if somebaody did not restarted tomcat gracefully, then does Oracle keep the session connected or is there any way that whenever any one restarted tomcat abnormally, Oracle session can be killed.
I had restart the database to kill session.

Could you please tell me that where do i set this parameter in parameter file or sql net file and what is the recommended value, do you have any document on this.
Another thing tomcat is in other server machine and my database is in different server machine, killing process in tomcat server machine manually may not kill linux process on oracle database machine and therefore oracle sessions are still there.
Is it possible?
Edited by: user605066 on 28-Aug-2008 04:59

JSP: work with TomCat 5.5.9 and NOT work with TomCat 6.0.16

Hi all,
I'm Antony and I have a problem with a .JSP page of my server.
In my server there are 2 users: "u1" and "u2"; there are 2 TomCat, version 5.5.9 and version 6.0.16. There is Apache WebServer version 2. The 2 TomCat servers have the same configuration files: server.xml and web.xml (in the dir /conf of the main server's root). They not work simultaneously.
When the user "root" launch the TomCat 5.5.9 all work fine: the server will show correctly the JSP pages of "u1" and the pages of "u2".
When the user "root" launch the TomCat 6.0.16 the JSP pages of "u1" work fine but the JSP pages of "u2" not work: it seems that there are problems with the path where the server want to search the pages of u2.
In the server.xml there is this code (for the handle of u2's site):
<Host name="u2site.com" appBase="/home/u2/public_html/">
<Alias>www.u2site.com</Alias>
<Context path="" reloadable="false" docBase="/home/u2/public_html/" debug="0"/>
          <Context path="/manager" debug="0" privileged="true"
              docBase="/usr/local/jakarta/tomcat/server/webapps/manager">
          </Context>
</Host>and this code (for the u1's site)
<Host name="u1site.com" appBase="/home/u1/public_html/">
<Context path="" reloadable="false" docBase="/home/u1/public_html" debug="1"/>
          <Context path="/manager" debug="0" privileged="true"
              docBase="/usr/local/jakarta/tomcat/server/webapps/manager">
          </Context>
</Host>The problems with the JSP pages of u2 are one of the following:
org.apache.jasper.JasperException: /login2.jsp(4,0) The value for the useBean class attribute com.u2.beans.access.Autenticator is invalid.and this one that appear with the pages that have the inclusion of another JSP page
/u2page.jsp(3,0) File "/../support/_formatting.jsp" not foundI think that the TomCat know how to find the page that the browser request to Apache WebServer (and that the webserver request to Tomcat by the connector) 'cause for pages that haven't inclusion or call to method in packages all work fine...but the TomCat have problems to locate the pages included or the method located in a JAR (the jars are located in WEB-INF/lib/ of the u2's site).
How I can resolve this problem with TomCat 6.0.16? I repeat that with TomCat 5.5.9 all work fine...same configuration!
Any ideas?
Thank you very much,
Antony.

Hi stevejluke, 'cause in the page "/supporto/_formatting.jsp" there are only the definition of some variables it's normal that the output at the browser it's a blank page.
The problem it's that Tomcat 6.0.16 cannot know how "navigate" the pages beginning from one...it know where is the "x.jsp" page requested directly by Apache WebServer, where is "y.jsp" request directly by Apache, where is "z.jsp" requested directly by Apache but if "x.jsp" request, includes, "y.jsp" Tomcat cannot know where "y.jsp" is located. There is some file where I can "say" this to Tomcat?
The page "/mostre/elenco_mostre.jsp" includes directly the "/supporto/_formatting.jsp".
Another thing: in /mostre/elenco_mostre.jsp there is an inclusion directive for /supporto/_formatting.jsp that is so:
<%@ include file="../supporto/_formatting.jsp"%>you can see that the included file is "../supporto/_formatting.jsp" and NOT "/../supporto/_formatting.jsp"...the "/" at the begin of the path is included by Tomcat!
In the catalina.out there are this lines, when the page is called:
Jul 6, 2008 3:15:00 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /elenco_mostre.jsp(3,0) File "/../supporto/_formatting.jsp" not found
In catalina.out before server start there are this lines:
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '1' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'debug' to '0' did not find a matching property.
Jul 6, 2008 1:43:49 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 358 ms
Jul 6, 2008 1:43:49 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Jul 6, 2008 1:43:49 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.16
Jul 6, 2008 1:43:52 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/23 config=null
Jul 6, 2008 1:43:52 AM org.apache.catalina.connector.MapperListener registerEngine
WARNING: Unknown default host: localhost
Jul 6, 2008 1:43:52 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 2512 msThe file "web.xml" is located in "$Tomcat_home/conf" and it's:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4">
<servlet>
    <servlet-name>jsp</servlet-name>
    <servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
    <init-param>
      <param-name>fork</param-name>
      <param-value>false</param-value>
    </init-param>
    <init-param>
      <param-name>xpoweredBy</param-name>
      <param-value>false</param-value>
    </init-param>
    <load-on-startup>3</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>jsp</servlet-name>
    <url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>jsp</servlet-name>
    <url-pattern>*.jspx</url-pattern>
</servlet-mapping>
<session-config>
    <session-timeout>30</session-timeout>
</session-config>
<welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>there are not web.xml file in /WEB-INF/ of the web application.
Maybe the problem it's that Tomcat want the conf file in "Server/Service/Engine/Host/Context" ? I must move the block HOST of the server.xml file in this path?
Good Sunday and thank you!
Antony.

Using Java Logging with Tomcat

Hi in a previous non Tomcat project I wrote some classes that used the java.util.logging library that comes with java 1.4 quite successfully. I am now trying to use the same classes with Tomcat 5.0 but it doesnt like it. With the logging classes you can provide a configuration class which you define with a property "java.util.logging.config.class", I put the class in my WEB_INF\classes with all the other classes.
When I run with Tomcat i have a servlet that does the following to try and initilse the logging
com.appserver.util.logging.LogProperties.setLevelFromParametersFromPrefs();
System.getProperties().setProperty("java.util.logging.config.class", "com.appserver.util.logging.LogProperties");
LogManager.getLogManager().readConfiguration();
it complains it cant find the class, when running readConfiguration(), (The 1st two lines run ok). I think the problem is to do with Tomcat classloader, with a simple Java application the classes would be expected to be on the system classpath, but on Tomcat the system classpath only contains bootstrap.jar.
I realise I could probably get things working using Apaches log4j instead but it seems a bit silly to use that when there is a perfectly adequate logger built into the language now.
Anyone done this ?

OK
Ive changed my code from
com.appserver.util.logging.LogProperties.setLevelFromParametersFromPrefs();
System.getProperties().setProperty("java.util.logging.config.class", "com.appserver.util.logging.LogProperties");
LogManager.getLogManager().readConfiguration();to
com.appserver.util.logging.LogProperties.setLevelFromParametersFromPrefs();
LogManager.getLogManager().readConfiguration(com.appserver.util.logging.LogProperties.getPropertiesAsStream());Now I dont get any errors and only messages for the LEVEL is set to the value I specify in my LogProperties class are displayed. However I also specify a Formatter to use for console output but Tomcat just seems to ignore it and uses its own default formatter. Any ideas...please !

Apache integrates with Tomcat

Hi, we have Apache 1.3.19 intergrated with Tomcat 3.2.2 using mod_jk.
When we checked with the mod_jk.log file, the file size is very large for just turning on it for 5 days. And the contents of this file are repeating the following two lines:
[jk_uri_worker_map.c (185)]: In jk_uri_worker_map_t::uri_worker_map_free, NULL parameters
[jk_uri_worker_map.c (335)]: jk_uri_worker_map_t::uri_worker_map_close, NULL parameter
Can somebody tell me what this two lines mean? The whole file is full of this two lines, nothing else.
Thanks so much in advance.

It's just logging from the Apache module which handles the protocol between the web server and the servlet container. Chances are your mod_jk configuration has its logging set higher than you want it -- if it is set to "DEBUG", try turning it down (or off, if you desire).
Good luck,
-Derek

Integrating Apache with Tomcat?

Anyone have a guide to integrating Apache with Tomcat using mod_jk?
I followed some guides online, but they all seem really dated with some obscure references. This seems like it should be on the top of the list....

Hi Alan.
I've discovered the exact same problem.... 0.0.0.0 instead of 127.0.0.1
You've obviously not had any replys here, but di you end up working it out on your own?

Apache with Tomcat cluster

Hi, I integrated Apache with Tomcat Cluster on Windows 2000. I instalated mod_jk2.dll, created workers2.properties and configurated server.xml in Tomcat instances. If I try to reach my .jsp file, e.g. http://localhost/root/main.jsp, I get follow message from Tomcat: source root/main.jsp is not available. What�s wrong? Can anybody help me? Apache version: 2.0.47, Tomcat: 1.4.27

Well, the first order of business is to determine exactly where main.jsp is located. If it is at <CATALINA_HOME>/webapps/main.jsp, then it should be at http://localhost:8080/main.jsp. Bypass Apache and verify that you can get to the Tomcat specific pages first.
Basically, we're trying to determine a) the correct URL and b) whether the problem is with Tomcat itself, or with the connections between Apache and Tomcat.
Essentially, we can't tell you where your configuration is incorrect until you tell us what your configuration is. :)

PDF with Tomcat - guidelines for template editing

PDF generation with Tomcat using the standard template works fine - but is pretty bland.
Does anyone have any guidelines for editing the template - what may / may not be included?
Are there any GUI tools for this?
Thanks
Mike

Vadim,
Report queries and report region use the same generic report layout. However the processing is handled by different engines. The underlying technical problem with your case is that the substitution string #TEXT_ALIGN# is not substituted in all cases for report queries. This usually does not cause any problems, but appears not to work when using Cocoon.
I'll see that we can this resolved with the next version of APEX, however when working with report layouts, you would typically use your own RTF or XSL-FO stylesheets, where this problem would not occur. The option to use the generic report layout is only included so the data can be tested independently from the layout and is not really intended to be used as the actual layout at runtime.
The generic report layout function is mainly designed to be used for report regions.
Regards,
Marc

How to use JMS with tomcat and Axis

Hello
I'm new in ii, so i'm still a little bit lost. I have been implementing web services with tomcat and Axis. However, these services are synchronous and I would like that some services were asynchronous.
I've been reading about the topic and I've found that JMS is a good solution for it. I have already downloaded JMS in my computer but now I don't know what else to do. I've been trying to run the SimpleQueueSender.java example but I get the error:
JNDI API lookup failed: javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
But I have attached all .jar from F:\Sun\MessageQueue\lib
In addition to this, for my first webservices I used the Java2WSDL, WSDL2Java and AdminClient (axis tool) to create my web services bindings, stubs and skeletons and to deploy the web service on the server. Do I have to use them now with JMS? or now the deployment must be performed in a different way?
Thank you in advanced,

The error means that you have to specify the type and location of your jndi store. You could create a jndi.properties file and put two properties in it:
java.naming.provider.url=file\\\:////var/jndi
java.naming.factory.initial=com.sun.jndi.fscontext.RefFSContextFactory
for a file based jndi store. Then you have to make sure your jndi.properties file is in your CLASSPATH. Then you have to use something like imqadmin to create your jndi store and store in it your administrative objects like Queues and QueueConnectionFactories.

Connecting a j2me app with tomcat

I have created a J2ME application which connects to a web-server (servlets) and returns some data!! I dit it with the J2ME toolkit and tomcat and now i want to test in a real phone! So i got Siemens SL45i. How can i establish a connection with tomcat in my pc ? Can I somehow connect my phone and my pc with a cable or something?
thanks in advance!
Sarantos

Thanks for your reply but i am not sure that i understood ! Do you suggest to connect another mobile phone to my pc and use it like a wap gateway or something and then call it from my j2me phone the same way i call my wap provider?
Why not connecting my phone directly to the pc?
thank you very much!!
Sorry if i am saying something completely wrong !!!

OutOfMemoryError with tomcat

Similar Messages

Maybe you are looking for