Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?

[Konstantin Kolinko]

2009/10/7 srinivas2828 srinivas2...@gmail.com:

 Hi Deepa
 I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i got
 and I am facing one problem that when I start Tomcat server it came with one
 error message which says Starting Tomcatv6.0 Server at localhost has
 encoutered a problem, Port 80 required by Tomcat v6.0 server at localhost
 already in use. the server may already running in another process, or a
 system process may be using  the port,To start this server you will need to
 stop  the other process or change the port number(s)

 any idea


As it says, you will need to stop the other process or change the
port number(s)

Either change the numbers by editing server.xml (that is inside the
Servers project), or using the GUI, e.g. as is described here (found
thanks to Google):

http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
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RE: Running tomcat as native

[Vivek Shanmughan]

Hi all,
 
   I am trying to run tomcat as native. I downloaded tcnative-1.dll and
copied it to tomcat/bin. Still am getting the INFO : The Apache Tomcat
Native library which allows optimal performance in production environments
was not found on the java.library.path: 
 
Can anyone please give me some inputs on this??
 
Vivek

Re: Running tomcat as native

[Mercy]

Hi Vivek,

You can try this code to get the paths,

public static void main(String[] args){
		for(String path :  
System.getProperty(java.library.path).split(File.pathSeparator))

System.out.println(path);
}

Please put the DLL file into those paths, it may help you!

Kind regards,
Mercy



On Wed, 07 Oct 2009 15:35:11 +0800, Vivek Shanmughan vivsh...@cisco.com  
wrote:



Hi all,
  I am trying to run tomcat as native. I downloaded tcnative-1.dll and
copied it to tomcat/bin. Still am getting the INFO : The Apache Tomcat
Native library which allows optimal performance in production  
environments

was not found on the java.library.path: 
Can anyone please give me some inputs on this??
Vivek



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Re: Tomcat gets hanged and sessions not releasing

[Mark Thomas]

 --- Original Message ---
 From: sudip pattanayak getsudi...@yahoo.co.in
 Subject: Tomcat gets hanged and sessions not releasing
 
 Actually the tomcat session kind of gets hanged and the session for the 
 troubled user does not get released and the force full log off feature does 
 not work.
 
 Restarting the Tomcat solves the problem.
 
 Any inputs on this.

It is a bug in your force log off feature. Without access to the relevant soure 
code, it is hard to help.

Mark


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Re: JspServlet Issue

[Mark Thomas]

 From: Mercy Ma techme...@gmail.com
 To: users@tomcat.apache.org
 Sent: 07/10/09, 06:42:17
 Subject: JspServlet Issue
 
 Hi there,
 
 I did write some code to create dynamic compiler for JSP pages, because our
 application sets development options parameter to be false for JspServlet.

Surely much simpler to change the app so it doesn't do that.

Mark

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Re: JspServlet Issue

[Mercy]

Hi Mark,

What did you mean change the app? Could you give more information?

Thank you.

Kind regards,
Mercy


On Wed, 07 Oct 2009 15:50:28 +0800, Mark Thomas ma...@apache.org wrote:


From: Mercy Ma techme...@gmail.com
To: users@tomcat.apache.org
Sent: 07/10/09, 06:42:17
Subject: JspServlet Issue

Hi there,

I did write some code to create dynamic compiler for JSP pages, because  
our
application sets development options parameter to be false for  
JspServlet.


Surely much simpler to change the app so it doesn't do that.

Mark

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Re: JspServlet Issue

[Mark Thomas]

 --- Original Message ---
 From: Mercy techme...@gmail.com
 To: Tomcat Users List users@tomcat.apache.org
 Sent: 07/10/09, 08:57:24
 Subject: Re: JspServlet Issue
 
 Hi Mark,
 
   What did you mean change the app? Could you give more information?

Don't set the development parameter of the JspServlet to false.

Mark

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Re: JspServlet Issue

[Mercy]

Hi Mark,

	Thank you for your response, actually, I has found a way to fulfill my  
requirement that it can compile the JSP pages when development parameter  
is false.
My question is that why my compiler using JspServletWrapper has been  
compiled some class files of Jsp file, the JasperLoader can't find them,at  
the same time,
The other pages that were compiled by JspServlet in first time could be  
found by JapserLoader.


	The exception told me that org/apache/jsp/_1_jsp class can't be found,but  
it still exists and its modified time is latest.


Is it a bug of JapserLoader or URLClassLoader?

I expect you response, thank you. :)

Kind regards,
Mercy

On Wed, 07 Oct 2009 16:13:41 +0800, Mark Thomas ma...@apache.org wrote:


--- Original Message ---
From: Mercy techme...@gmail.com
To: Tomcat Users List users@tomcat.apache.org
Sent: 07/10/09, 08:57:24
Subject: Re: JspServlet Issue

Hi Mark,

What did you mean change the app? Could you give more information?


Don't set the development parameter of the JspServlet to false.

Mark

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RE: Running tomcat as native

[Vivek Shanmughan]

Thank you Mercy,

  I tried copying the dll to one of the folders in  java.library.path. But
even this didn't help.

Is there a dependency between tcnative-1.dll version and tomcat version .

Vivek

-Original Message-
From: Mercy [mailto:techme...@gmail.com] 
Sent: Wednesday, October 07, 2009 1:16 PM
To: Tomcat Users List
Subject: Re: Running tomcat as native


Hi Vivek,

You can try this code to get the paths,

public static void main(String[] args){
for(String path :  
System.getProperty(java.library.path).split(File.pathSeparator))
System.out.println(path);
}

Please put the DLL file into those paths, it may help you!

Kind regards,
Mercy



On Wed, 07 Oct 2009 15:35:11 +0800, Vivek Shanmughan vivsh...@cisco.com
wrote:

 Hi all,
   I am trying to run tomcat as native. I downloaded tcnative-1.dll and 
 copied it to tomcat/bin. Still am getting the INFO : The Apache 
 Tomcat Native library which allows optimal performance in production 
 environments was not found on the java.library.path: 
 Can anyone please give me some inputs on this??
 Vivek


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Re: Running tomcat as native

[Mercy]

Hi,	welcome, the following links may help for you:	http://mirrors.dotsrc.org/apache/tomcat/tomcat-connectors/native/1.1.16/binaries/win64/README.html,	http://mirrors.dotsrc.org/apache/tomcat/tomcat-connectors/native/1.1.16/binaries/win32/README.htmlFYI:Apache Tomcat Native 1.1.16 for WIN32The binaries were build using the following dependent libraries: APR 1.2.8 OpenSSL 0.9.8i The Apache Tomcat ProjectKind regards,MercyOn Wed, 07 Oct 2009 16:36:26 +0800, Vivek Shanmughan vivsh...@cisco.com wrote: Thank you Mercy,   I tried copying the dll to one of the folders in  java.library.path.   But even this didn't help. Is there a dependency between tcnative-1.dll version and tomcat version . Vivek -Original Message- From: Mercy [mailto:techme...@gmail.com] Sent: Wednesday, October 07, 2009 1:16 PM To: Tomcat Users List Subject: Re: Running tomcat as native Hi Vivek, 	You can try this code to get the paths, 	 	public static void main(String[] args){ 		for(String path : System.getProperty("java.library.path").split(File.pathSeparator)) 			System.out.println(path); 	} Please put the DLL file into those paths, it may help you! Kind regards, Mercy 	 On Wed, 07 Oct 2009 15:35:11 +0800, Vivek Shanmughan vivsh...@cisco.com wrote: Hi all,   I am trying to run tomcat as native. I downloaded tcnative-1.dll and copied it to tomcat/bin. Still am getting the INFO : "The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: " Can anyone please give me some inputs on this?? Vivek-- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/

Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?

[srinivas2828]

I really appriciate your help but got one more problem,please find attached
copy of image
http://www.nabble.com/file/p25783409/Screenshot.png Screenshot.png 

Konstantin Kolinko wrote:
 
 2009/10/7 srinivas2828 srinivas2...@gmail.com:

 Hi Deepa
 I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i got
 and I am facing one problem that when I start Tomcat server it came with
 one
 error message which says Starting Tomcatv6.0 Server at localhost has
 encoutered a problem, Port 80 required by Tomcat v6.0 server at localhost
 already in use. the server may already running in another process, or a
 system process may be using  the port,To start this server you will need
 to
 stop  the other process or change the port number(s)

 any idea

 
 As it says, you will need to stop the other process or change the
 port number(s)
 
 Either change the numbers by editing server.xml (that is inside the
 Servers project), or using the GUI, e.g. as is described here (found
 thanks to Google):
 
 http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/
 
 -
 To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
 For additional commands, e-mail: users-h...@tomcat.apache.org
 
 
 

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Comet question with Tomcat

[Markus Innerebner]

Hi all,

I am using Tomcat6  together with Comet. I implemented as described in 
the article Advanced IO and Tomcat the servlet, message sender ...


The main reason for using comet is that I would like to implement a kind 
of streaming, what means:


I am launching from the client with a AJAX request that is processed by 
the servlet: on the server the EventType.BEGIN is passed to the event 
method and than I start to run an specific algorithm. In this algorithm, 
whenever a specific event occurs, the message sender is notified and 
writes into the response write a content. This stream is send to the 
client, parsed and displayed in the page.


Unfortunately on the client I only see the content send from message 
sender after the first event. All others are not send to the client even 
if the message sender writes it out int the response which is still open.


On client side the javascript function (see below go()) is invoked only 
once. Any idea what I am doing wrong?


function go(){
var url = http://myHost:8080/myServlet;;
var request = new XMLHttpRequest();
request.open(POST, url, true);
request.setRequestHeader(Content-Type, 
application/x-javascript;);

request.onreadystatechange = function(){
if (request.readyState == 4) {
if (request.status == 200) {
	if (request.responseText) { 
   document.getElementById(msgContainer).innerHTML = 
request.responseText;

}
}
}
};
request.send(null);
}


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Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?

[Mercy]

Hi,
	You could add the src.zip under JDK folder instead of JRE,please take a  
look at the attached image file.


Kind regards,
Mercy


On Wed, 07 Oct 2009 17:34:18 +0800, srinivas2828 srinivas2...@gmail.com  
wrote:




I really appriciate your help but got one more problem,please find  
attached

copy of image
http://www.nabble.com/file/p25783409/Screenshot.png Screenshot.png

Konstantin Kolinko wrote:


2009/10/7 srinivas2828 srinivas2...@gmail.com:


Hi Deepa
I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i  
got
and I am facing one problem that when I start Tomcat server it came  
with

one
error message which says Starting Tomcatv6.0 Server at localhost has
encoutered a problem, Port 80 required by Tomcat v6.0 server at  
localhost

already in use. the server may already running in another process, or a
system process may be using  the port,To start this server you will  
need

to
stop  the other process or change the port number(s)

any idea



As it says, you will need to stop the other process or change the
port number(s)

Either change the numbers by editing server.xml (that is inside the
Servers project), or using the GUI, e.g. as is described here (found
thanks to Google):

http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org








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Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?

[srinivas2828]

Oh..thats Great and can you tell me how can i see the server status success
or not and can i see the default success page in eclipse and is it possibe?
or ele browser?dont mind for this question and I am newbie to this kind of
configurations...
O

Mercy Ma wrote:
 
 Hi,
   You could add the src.zip under JDK folder instead of JRE,please take a 
  
 look at the attached image file.
 
 Kind regards,
 Mercy
 
 
 On Wed, 07 Oct 2009 17:34:18 +0800, srinivas2828 srinivas2...@gmail.com  
 wrote:
 

 I really appriciate your help but got one more problem,please find  
 attached
 copy of image
 http://www.nabble.com/file/p25783409/Screenshot.png Screenshot.png

 Konstantin Kolinko wrote:

 2009/10/7 srinivas2828 srinivas2...@gmail.com:

 Hi Deepa
 I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i  
 got
 and I am facing one problem that when I start Tomcat server it came  
 with
 one
 error message which says Starting Tomcatv6.0 Server at localhost has
 encoutered a problem, Port 80 required by Tomcat v6.0 server at  
 localhost
 already in use. the server may already running in another process, or a
 system process may be using  the port,To start this server you will  
 need
 to
 stop  the other process or change the port number(s)

 any idea


 As it says, you will need to stop the other process or change the
 port number(s)

 Either change the numbers by editing server.xml (that is inside the
 Servers project), or using the GUI, e.g. as is described here (found
 thanks to Google):

 http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/

 -
 To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
 For additional commands, e-mail: users-h...@tomcat.apache.org




 
 
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Re: JspServlet Issue

[Mark Thomas]

Mercy wrote:
 Hi Mark,
 
 Thank you for your response, actually, I has found a way to fulfill
 my requirement that it can compile the JSP pages when development
 parameter is false.
 My question is that why my compiler using JspServletWrapper has been
 compiled some class files of Jsp file, the JasperLoader can't find
 them,at the same time,
 The other pages that were compiled by JspServlet in first time could be
 found by JapserLoader.
 
 The exception told me that org/apache/jsp/_1_jsp class can't be
 found,but it still exists and its modified time is latest.
 
 Is it a bug of JapserLoader or URLClassLoader?

Neither. It is a bug of your custom re-compilation code. I still don't see why
you are trying to re-invent the wheel. Just don't set development=false.

Mark

 
 I expect you response, thank you. :)
 
 Kind regards,
 Mercy
 
 On Wed, 07 Oct 2009 16:13:41 +0800, Mark Thomas ma...@apache.org wrote:
 
 --- Original Message ---
 From: Mercy techme...@gmail.com
 To: Tomcat Users List users@tomcat.apache.org
 Sent: 07/10/09, 08:57:24
 Subject: Re: JspServlet Issue

 Hi Mark,

 What did you mean change the app? Could you give more information?

 Don't set the development parameter of the JspServlet to false.

 Mark

 -
 To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
 For additional commands, e-mail: users-h...@tomcat.apache.org

 
 


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Re: Running tomcat as native

[Mark Thomas]

Vivek Shanmughan wrote:
 Hi all,
  
I am trying to run tomcat as native. I downloaded tcnative-1.dll and
 copied it to tomcat/bin. Still am getting the INFO : The Apache Tomcat
 Native library which allows optimal performance in production environments
 was not found on the java.library.path: 
  
 Can anyone please give me some inputs on this??

Operating system?
Tomcat version?
Exactly what did you download?

Mark


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Re: how to integrate tomcat with IDE tools like eclipse,Netbeans?

[Mercy]

Hi,

   At first , you need to create a web project , and the add it into 
tomcat server.


   Later, you create a new jsp page, select it and click right button, 
the pop-up menu dispears, select Run As - Run on Server, the server is 
Ok when that page is present. :-)


  
Kind regards,

Mercy

srinivas2828 wrote:

Oh..thats Great and can you tell me how can i see the server status success
or not and can i see the default success page in eclipse and is it possibe?
or ele browser?dont mind for this question and I am newbie to this kind of
configurations...
O

Mercy Ma wrote:
  

Hi,
	You could add the src.zip under JDK folder instead of JRE,please take a  
look at the attached image file.


Kind regards,
Mercy


On Wed, 07 Oct 2009 17:34:18 +0800, srinivas2828 srinivas2...@gmail.com  
wrote:



I really appriciate your help but got one more problem,please find  
attached

copy of image
http://www.nabble.com/file/p25783409/Screenshot.png Screenshot.png

Konstantin Kolinko wrote:
  

2009/10/7 srinivas2828 srinivas2...@gmail.com:


Hi Deepa
I integrated tomcat with eclipse(I downloaded Eclipse-Galelio) then i  
got
and I am facing one problem that when I start Tomcat server it came  
with

one
error message which says Starting Tomcatv6.0 Server at localhost has
encoutered a problem, Port 80 required by Tomcat v6.0 server at  
localhost

already in use. the server may already running in another process, or a
system process may be using  the port,To start this server you will  
need

to
stop  the other process or change the port number(s)

any idea

  

As it says, you will need to stop the other process or change the
port number(s)

Either change the numbers by editing server.xml (that is inside the
Servers project), or using the GUI, e.g. as is described here (found
thanks to Google):

http://techteam.wordpress.com/2009/02/13/changing-the-tomcat-port-settings-in-eclipse/

-
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org





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Re: JspServlet Issue

[Mercy]

Hi Mark,

	I just want to compile the pages what i need, not all. Actually,the most  
pages ware compiled by ANT,thus, our application does not set the  
development parameter is true.


	What's more , I did not re-invent the wheel rather than I re-use the  
JspServlet and its correlative classes.


Thank you for your time.

Kind regards,
Mercy

On Wed, 07 Oct 2009 18:15:29 +0800, Mark Thomas ma...@apache.org wrote:


Mercy wrote:

Hi Mark,

Thank you for your response, actually, I has found a way to fulfill
my requirement that it can compile the JSP pages when development
parameter is false.
My question is that why my compiler using JspServletWrapper has been
compiled some class files of Jsp file, the JasperLoader can't find
them,at the same time,
The other pages that were compiled by JspServlet in first time could be
found by JapserLoader.

The exception told me that org/apache/jsp/_1_jsp class can't be
found,but it still exists and its modified time is latest.

Is it a bug of JapserLoader or URLClassLoader?


Neither. It is a bug of your custom re-compilation code. I still don't  
see why

you are trying to re-invent the wheel. Just don't set development=false.

Mark



I expect you response, thank you. :)

Kind regards,
Mercy

On Wed, 07 Oct 2009 16:13:41 +0800, Mark Thomas ma...@apache.org  
wrote:



--- Original Message ---
From: Mercy techme...@gmail.com
To: Tomcat Users List users@tomcat.apache.org
Sent: 07/10/09, 08:57:24
Subject: Re: JspServlet Issue

Hi Mark,

What did you mean change the app? Could you give more  
information?


Don't set the development parameter of the JspServlet to false.

Mark

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RE: Running tomcat as native

[Vivek Shanmughan]

 
Operating system  - Windows XP SP2
Tomcat version - apache-tomcat-5.5.28
Exactly what did you download  - tcnative-1.dll from the location
http://tomcat.heanet.ie/native/1.1.14/binaries/win32/

Vivek


-Original Message-
From: Mark Thomas [mailto:ma...@apache.org] 
Sent: Wednesday, October 07, 2009 3:47 PM
To: Tomcat Users List
Subject: Re: Running tomcat as native

Vivek Shanmughan wrote:
 Hi all,
  
I am trying to run tomcat as native. I downloaded tcnative-1.dll 
 and copied it to tomcat/bin. Still am getting the INFO : The Apache 
 Tomcat Native library which allows optimal performance in production 
 environments was not found on the java.library.path: 
  
 Can anyone please give me some inputs on this??

Operating system?
Tomcat version?
Exactly what did you download?

Mark


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Re: Running tomcat as native

[Mark Thomas]

Vivek Shanmughan wrote:
  
 Operating system  - Windows XP SP2
 Tomcat version - apache-tomcat-5.5.28
 Exactly what did you download  - tcnative-1.dll from the location
 http://tomcat.heanet.ie/native/1.1.14/binaries/win32/

You should use 1.1.16 from here:
http://tomcat.apache.org/download-native.cgi

Updating probably won't fix the issue but it would be a good first step.

Mark


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RE: Running tomcat as native

[Vivek Shanmughan]

Thanks Mark,

   It worked with  tcnative-1.dll 1.1.16 and apache-tomcat-6.0.20.

Let me find the suitable tcnative-1.dll for apache-tomcat-5.5.28

Vivek

-Original Message-
From: Mark Thomas [mailto:ma...@apache.org] 
Sent: Wednesday, October 07, 2009 4:32 PM
To: Tomcat Users List
Subject: Re: Running tomcat as native

Vivek Shanmughan wrote:
  
 Operating system  - Windows XP SP2
 Tomcat version - apache-tomcat-5.5.28
 Exactly what did you download  - tcnative-1.dll from the location 
 http://tomcat.heanet.ie/native/1.1.14/binaries/win32/

You should use 1.1.16 from here:
http://tomcat.apache.org/download-native.cgi

Updating probably won't fix the issue but it would be a good first step.

Mark


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Re: Running tomcat as native

[Mark Thomas]

Vivek Shanmughan wrote:
 Thanks Mark,
 
It worked with  tcnative-1.dll 1.1.16 and apache-tomcat-6.0.20.
 
 Let me find the suitable tcnative-1.dll for apache-tomcat-5.5.28

1.1.16 should work with 5.5.28 as well.

I suspect that you have hit this issue:
https://issues.apache.org/bugzilla/show_bug.cgi?id=47712

If you need to use 5.5.28 then you'll need to patch Tomcat to make this work.

Mark


 
 Vivek
 
 -Original Message-
 From: Mark Thomas [mailto:ma...@apache.org] 
 Sent: Wednesday, October 07, 2009 4:32 PM
 To: Tomcat Users List
 Subject: Re: Running tomcat as native
 
 Vivek Shanmughan wrote:
  
 Operating system  - Windows XP SP2
 Tomcat version - apache-tomcat-5.5.28
 Exactly what did you download  - tcnative-1.dll from the location 
 http://tomcat.heanet.ie/native/1.1.14/binaries/win32/
 
 You should use 1.1.16 from here:
 http://tomcat.apache.org/download-native.cgi
 
 Updating probably won't fix the issue but it would be a good first step.
 
 Mark
 
 
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JNI problem

[Mohamedin]

-2.0.jar
7f5620ccf000-7f5620cd3000 r-xs  09:07 134504357  
/home/java/app/WEB-INF/lib/gdata-health-2.0.jar
7f5620cd3000-7f5620cd4000 r-xs  09:07 134504371  
/home/java/app/WEB-INF/lib/gdata-finance-meta-2.0.jar
7f5620cd4000-7f5620cdd000 r-xs  09:07 134466631  
/home/java/app/WEB-INF/lib/gdata-finance-2.0.jar
7f5620cdd000-7f5620cde000 r-xs  09:07 134466627  
/home/java/app/WEB-INF/lib/gdata-docs-meta-2.0.jar
7f5620cde000-7f5620ce3000 r-xs  09:07 134466620  
/home/java/app/WEB-INF/lib/gdata-docs-2.0.jar
7f5620ce3000-7f5620d5d000 r-xs  09:07 134466644  
/home/java/app/WEB-INF/lib/gdata-core-1.0.jar
7f5620d5d000-7f5620d5e000 r-xs  09:07 134466593  
/home/java/app/WEB-INF/lib/gdata-contacts-meta-2.0.jar
7f5620d5e000-7f5620d64000 r-xs  09:07 134466612  
/home/java/app/WEB-INF/lib/gdata-contacts-2.0.jar
7f5620d64000-7f5620d65000 r-xs  09:07 134504362  
/home/java/app/WEB-INF/lib/gdata-codesearch-meta-2.0.jar
7f5620d65000-7f5620d69000 r-xs  09:07 134466645  
/home/java/app/WEB-INF/lib/gdata-codesearch-2.0.jar
7f5620d69000-7f5620d6a000 r-xs  09:07 134504363  
/home/java/app/WEB-INF/lib/gdata-client-meta-1.0.jar
7f5620d6a000-7f5620d81000 r-xs  09:07 134466619  
/home/java/app/WEB-INF/lib/gdata-client-1.0.jar
7f5620d81000-7f5620d82000 r-xs  09:07 134466655  
/home/java/app/WEB-INF/lib/gdata-calendar-meta-2.0.jar
7f5620d82000-7f5620d8f000 r-xs  09:07 134466615  
/home/java/app/WEB-INF/lib/gdata-calendar-2.0.jar
7f5620d8f000-7f5620d9 r-xs  09:07 134466599  
/home/java/app/WEB-INF/lib/gdata-books-meta-1.0.jar
7f5620d9-7f5620d96000 r-xs  09:07 134504355  
/home/java/app/WEB-INF/lib/gdata-books-1.0.jar
7f5620d96000-7f5620d97000 r-xs  09:07 134466626  
/home/java/app/WEB-INF/lib/gdata-blogger-meta-2.0.jar
7f5620d97000-7f5620d9b000 r-xs  09:07 134466606  
/home/java/app/WEB-INF/lib/gdata-blogger-2.0.jar
7f5620d9b000-7f5620dac000 r-xs  09:07 134466632  
/home/java/app/WEB-INF/lib/gdata-base-1.0.jar
7f5620dac000-7f5620dad000 r-xs  09:07 134466614  
/home/java/app/WEB-INF/lib/gdata-appsforyourdomain-meta-1.0.jar
7f5620dad000-7f5620dbc000 r-xs  09:07 134466600  
/home/java/app/WEB-INF/lib/gdata-appsforyourdomain-1.0.jar
7f5620dbc000-7f5620dcf000 r-xs  09:07 134466607  
/home/java/app/WEB-INF/lib/ezmorph-1.0.2.jar
7f5620dcf000-7f5620dec000 r-xs  09:07 134504360


Thanks,
Mohamed Mohamedin


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The message was checked by ESET NOD32 Antivirus.

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Re: alias problem in tomcat5.0 + apache1.3

[Nada O'Neal]

Hi Partha,

It looks like you're asking for two things:
 1) that your server respond to partha16 instead of localhost, and
 2) that your server respond on port 80 instead of port 8085
Is that right?

1) is a DNS issue. If http://localhost:8085/DOMAIN is working now, I can 
help you get to http://localhost/DOMAIN, I can get rid of 8085, but I 
can't help you change the server hostname. That's an issue outside tomcat.


2) You have two options. You can either change tomcat's http port in 
server.xml, and stop running Apache, or you can add a ProxyPass 
directive to your VirtualHost block in Apache. I found your current 
httpd.conf file here: http://www.nabble.com/file/p25780775/httpd.conf

Try a VirtualHost block like so:

VirtualHost *:80
DocumentRoot C:\Program Files\Apache Software Foundation\Apache Tomcat 
6.0.14\DOMAIN

ServerName partha16
Alias /partha16/ C:\Program Files\Apache Software Foundation\Apache 
Tomcat 6.0.14\DOMAIN\DOMAIN

ErrorLog logs/partha1.com-error_log
#JkMount /context
ProxyPass / https://127.0.0.1:8085/
ProxyPassReverse / https://127.0.0.1:8085/
ProxyPreserveHost on
/VirtualHost

Hope that helps, good luck.

- Nada

partha_ctc wrote:

Hi,
we have tomcat5.0 and apache1.3. my aim is instead of
http://localhost:8085/DOMAIN, how can i call http://partha16/DOMAIN. for
that i have mdified server.xml and httpd.conf file. but it says page not
found.
i have attached the httpd.conf file.
first i tried with virtual host , but it has not worked. so i commented the
virtualhost tag.
Can some one help me in this configuration peoble?
==
In apache: httpd.conf, i have following line:
httpd.conf
Directory D:/software/Tomcat 5.0/DOMAIN/DOMAIN
 Order allow,deny
 Allow from all   
/Directory

DocumentRoot D:/software/Tomcat 5.0/DOMAIN/DOMAIN
Alias /partha16 D:/software/Tomcat 5.0/DOMAIN/DOMAIN/
Location /partha16
Order allow,deny
Allow from all
#   DirectoryIndex portal.htm
/Location

==
following lines has been added in server.xml
server.xml

Host name=partha16 debug=1 appBase=DOMAIN
   unpackWARs=true autoDeploy=true

 Logger className=org.apache.catalina.logger.FileLogger
 directory=logs  prefix=DOMAIN_com. suffix=.log
 timestamp=true/

 Context path= docBase=DOMAIN debug=0 reloadable=true

 Logger className=org.apache.catalina.logger.FileLogger
 prefix=DOMAIN. suffix=.log timestamp=true /

 Resource name=mail/Session auth=Container
   type=javax.mail.Session/
 ResourceParams name=mail/Session
 parameter
 namemail.smtp.host/name
 valuelocalhost/value
 /parameter
 /ResourceParams

 /Context
/Host
http://www.nabble.com/file/p25769060/httpd.conf httpd.conf 


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Getting an error with the Tomcat Manager on version 6.0.14.

[Razvan Poenaru]

I am getting the following error when trying to access the Tomcat
Manager on Tomcat 6.0.14:
 

type Exception report
message 
description The server encountered an internal error () that prevented
it from fulfilling this request.
exception javax.servlet.ServletException: Error allocating a servlet
instance
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Thread.java:619)

root cause java.lang.SecurityException: Servlet of class
org.apache.catalina.manager.HTMLManagerServlet is privileged and cannot
be loaded by this web application
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:263)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Thread.java:619)

note The full stack trace of the root cause is available in the Apache
Tomcat/6.0.14 logs.Apache Tomcat/6.0.14

Regards,
 
Razvan  Poenaru |Sr.Programmer/Analyst |Space Missions -MDA
(905) 790 2800
x4626|razvan.poen...@mdacorporation.com|www.mdacorporation.com
Canada – 9445 Airport Road, Brampton, ON – L6S 4J3

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Re: Default character encoding for ServletRequest

[Halm Reusser]

Hi Peter,

Peter Crowther wrote:

What are you trying to achieve?  If we know more about the problem you're
trying to solve, we may be able to suggest some different approaches.


The client receives an HTML page with contentType=text/html; charset=utf-8

On that page is a POST form. When I evaluate the posted data, they are NOT
utf-8 encoded.

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Re: Default character encoding for ServletRequest

[Halm Reusser]

Hi Markus,

thanks for your hints.

Markus Meyer wrote:
It all depends on the client. IIRC if you set the charset in the content 
type header to utf-8, like this


contentType=text/html; charset=utf-8

most browsers will then use utf-8 for HTTP GET and POST requests when 
responding to the given page.


No this doesn't work. Tomcat version 6.0.20, Firefox version 3.5.3, IE 7

-Halm

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Re: Default character encoding for ServletRequest

[Halm Reusser]

Hi Andre-John,

Andre-John Mas wrote:

I wan't do it within the application. I prefer to configure the app 
container or the app itself.


I had asked for this too a while back, but I was told the RFC indicates 
ISO-8859-1, so the developers didn't want to allow you to change the 
default encoding used by the application server, which is a shame. I say it

is a shame, because we can already change the URL encoding and being able
to standardise your deployment solutions on UTF-8 would be so much nicer,
IMHO.


Full ack.


My solution was to use a character set filter, described here:

http://wiki.apache.org/tomcat/Tomcat/UTF-8


I did that too, but in my opinion that is no solution, it is just an workaround.

Thanks,
Halm

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Re: Default character encoding for ServletRequest

[Mark Thomas]

Halm Reusser wrote:
 Hi Markus,
 
 thanks for your hints.
 
 Markus Meyer wrote:
 It all depends on the client. IIRC if you set the charset in the
 content type header to utf-8, like this

 contentType=text/html; charset=utf-8

 most browsers will then use utf-8 for HTTP GET and POST requests when
 responding to the given page.
 
 No this doesn't work. Tomcat version 6.0.20, Firefox version 3.5.3, IE 7

http://wiki.apache.org/tomcat/FAQ/CharacterEncoding#Q4

Mark

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Re: ssl_error_internal_error_alert in firefox only, dependent on jdk version (tomcat 5.5.26)

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Nada,

On 10/6/2009 4:51 PM, Nada O'Neal wrote:
 I don't have an EV cert, it's just a standard cert signed by Equifax. I
 have similar certs working on other servers. Again, it's the upgrade
 from one java to another that seems to cause the problem - running java
 1.5, I don't have this issue.

If you've recently upgraded, then any changes you made to the system
keystore may have been lost (which I think is a foolish thing to do, but
it looks like each version of the JRE gets its own keystore, and
upgrades don't merge or anything like that).

 $ keytool -list -keystore /path/to/keystore
 Enter keystore password:
 
 Keystore type: JKS
 Keystore provider: SUN
 
 Your keystore contains 2 entries
 
 root, Sep 29, 2009, trustedCertEntry,
 Certificate fingerprint (MD5): [...]
 tomcat, Sep 29, 2009, PrivateKeyEntry,
 Certificate fingerprint (MD5): [...]
 
 ... is this wrong?

I'm not sure. That depends on if this is /your/ keystore or the JRE's
keystore. It also depends on what the details of those certs are: do any
of them have to do with Equifax?

All you really need is:

1. Equifax CA cert in your keystore
2. Any Equifax intermediate certificates in your keystore
3. Your own certificate in your keystore
4. The web browser has to trust either #1 or #2

I'm not altogether clear if it all has to be the same keystore: I think
that the JCE reads the system one no matter what, which should include
anything Equifax has at the top-level. You may have to import their
intermediate cert into your own keystore (or into the system one, again,
if you upgraded).

There's nothing you can do about #4 above, except that if the browser
trusts, say, #1, but you aren't providing the certificate chain between
#3 and #1 (via #2), then you'll get this error from the client.

I hope that helps,
- -chris
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iEYEARECAAYFAkrMyjcACgkQ9CaO5/Lv0PAlpQCgsBd2nlqqEwa4fqMKaJlf0YAi
ELwAn2+cUWZVBqJOSOKAfm8i81qLucQu
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Re: Default character encoding for ServletRequest

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Halm,

On 10/7/2009 11:44 AM, Halm Reusser wrote:
 Peter Crowther wrote:
 What are you trying to achieve?  If we know more about the problem you're
 trying to solve, we may be able to suggest some different approaches.
 
 The client receives an HTML page with contentType=text/html;
 charset=utf-8
 
 On that page is a POST form. When I evaluate the posted data, they are NOT
 utf-8 encoded.

/Most/ clients will act the way you expect, yet, there is no requirement
for them to do so. What client is this, by the way?

See the W3C document for the form element, specifically the
accept-charset attribute:
http://www.w3.org/TR/html401/interact/forms.html#adef-accept-charset

Read the part about UNKNOWN and how clients MAY interpret this as use
the current page encoding. This is RFC 'MAY' which basically means
it's a recommendation, but not at all required.

If you configure your form like this, the client is essentially required
to use your specified encoding if it expects the server to behave correctly:

form action=... method=POST accept-charset=UTF-8
...
/form

Give that a try and see what happens.

- -chris
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mod_jk problem related to multiple hosts on Apache and Tomcat

[Maciej Zabielski]

Hello, 

I have a mod_jk problem related to multiple hosts on Apache and Tomcat

My setup is
Centos 5.3 + Apache HTTPD 2.2.3 + Tomcat 5

httpd.conf contains (Just before section 3) Basic mod_jk directives.
At the end it contains two virtual hosts:
(all sections are placed in proper files, but I have grouped them to make it 
easier to read)


VirtualHost *:80
ServerName share.domain.com
DocumentRoot /var/lib/tomcat5/ShareApp/share/
Alias / /var/lib/tomcat5/ShareApp/share
JkMount /* share_wrk
Options FollowSymLinks
/VirtualHost

Worker file defined: 
worker.list=share_wrk
worker.share_wrk.port=8009
worker.share_wrk.host=share.domain.com
worker.share_wrk.type=ajp13
worker.share_wrk.lbfactor=1

Tomcat host:
Host name=share.tessel.pl debug=0 
appBase=/var/lib/tomcat5/ShareApp unpackWARs=true autoDeploy=true
xmlValidation=false xmlNamespaceAware=false
Context path= docBase=/var/lib/tomcat5/ShareApp/share/
Aliasshare.domain.com/Alias
/Host
-

VirtualHost *:80
ServerName alfresco.domain.com  
DocumentRoot /var/lib/tomcat5/webapps/alfresco
Alias /alfresco /var/lib/tomcat5/webapps/alfresco/
   JkMount /alfresco/* alfresco_wrk
Options FollowSymLinks
/VirtualHost

Worker file:
worker.list=alfresco_wrk
worker.alfresco_wrk.port=8009
worker.alfresco_wrk.host=localhost
worker.alfresco_wrk.type=ajp13
worker.alfresco_wrk.lbfactor=1

Tomcat Host
Host name=localhost debug=0 appBase=webapps unpackWARs=true 
autoDeploy=true
xmlValidation=false xmlNamespaceAware=false
Context path= docBase=/var/lib/tomcat5/webapps/   
Aliasalfresco.domain.com/Alias
/Host
-

Problem description:
Share site has dedicated host in Tomcat and is linked to dedicated host in 
Apache - it works perfectly.
By typing address like share.domain.com I get the proper index document 
processed by Tomcat (from the root of the app: /index.jsp)

Alfresco site on the other hand is located in the Tomcat Localhost subdirectory 
/alfresco (webapps/alfresco/index.jsp)
When I use this config:   JkMount /* alfresco_wrk
I can access this site by typing alfresco.domain.com/alfresco but that is not 
what I need :( (I want direct access without /alfresco)

So when I change config to point directly into alfresco root:
JkMount /alfresco/* alfresco_wrk
And navigate to alfresco.domain.com I get unprocessed JSP file (displayed as 
text) so it looks like it was not passed to Tomcat?
(But I ended in a proper place, because index.html is displayed properly by 
Apache itself)

I can’t move alfresco to separate site as I need acees to it locally via 
localhost:8080/alfresco address.

I would greatly appretiate any suggestions!
Thank you!

Best regards,
Mike


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RE: Getting an error with the Tomcat Manager on version 6.0.14.

[Caldarale, Charles R]

 From: Razvan Poenaru [mailto:razvan.poen...@mdacorporation.com]
 Subject: Getting an error with the Tomcat Manager on version 6.0.14.
 
 I am getting the following error when trying to access the Tomcat
 Manager on Tomcat 6.0.14:

Access it how?

 root cause
 java.lang.SecurityException: Servlet of class
 org.apache.catalina.manager.HTMLManagerServlet is privileged and cannot
 be loaded by this web application

Looks like you may have lost the privileged=true attribute in the manager's 
Context element.  Look in [appBase]/manager/META-INF/context.xml and see what 
it says.  Also check if there's a conf/Catalina/[host]/manager.xml that might 
be overriding the one packaged with the webapp.

Any reason you can't move up to a newer version?

 - Chuck


THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
this in error, please contact the sender and delete the e-mail and its 
attachments from all computers.

RE: mod_jk problem related to multiple hosts on Apache and Tomcat

[Caldarale, Charles R]

 From: Maciej Zabielski [mailto:m...@tessel.pl]
 Subject: mod_jk problem related to multiple hosts on Apache and Tomcat
 
 Tomcat Host
 Host name=localhost debug=0 appBase=webapps unpackWARs=true 
 autoDeploy=true
   xmlValidation=false xmlNamespaceAware=false
   Context path= docBase=/var/lib/tomcat5/webapps/   
   Aliasalfresco.domain.com/Alias
 /Host

I can't advise you about the httpd-related stuff, but the above is clearly 
wrong.  The docBase attribute of a Context must not be the same as the Host 
appBase; docBase should point to some directory or .war file directly 
*underneath* the appBase directory.  (Your other Host element is correct.)

 - Chuck


THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
this in error, please contact the sender and delete the e-mail and its 
attachments from all computers.


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Re: java.lang.OutOfMemoryError: Java heap space

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Joe,

On 10/6/2009 3:44 PM, Joe Hansen wrote:
 I did not check the CPU usage when the issue happened.  I just checked
 the web application logs and found that first there was an
 OutOfMemoryError, followed by MySQL errors when
 TWFotoSetListDAO.getAllFotosets tried to get a database connection.

It's possible that, if you really are grabbing photos (like, actual
images) from a database and fitting them into memory, you might just be
busting your heap yourself (rather than CAS, etc.). Are there large
objects that you store in memory and/or sessions?

 I am *guessing* :
 I changed the session timeout to 4 hours for the Jasig CAS
 Single-Signon web application. This stores a ton of tickets in memory.
 During a 4 hour period when there are more http requests, the 512MB of
 Java Heap space is not sufficient to store all these tickets. During
 that time OutOfMemoryError happens and all hell breaks loose
 subsequently.

Wow, those tickets seem very heavyweight. Try this when the server is
quiet and then, later, when it's getting stormed:

$ jmap -histo [jvm pid]  heap.log

Then, go into the heap log and see what's taking up so much of your
memory. For instance, if I run this against my own JVM running in
development, here are the top 10 objects in memory:

SizeCount   Class description
- ---
1078520098394   char[]
5548488 40283   * ConstMethodKlass
2911352 7238byte[]
2465208 102717  java.lang.String
2259496 40283   * MethodKlass
2212736 54518   * SymbolKlass
2171032 3767* ConstantPoolKlass
1912032 7936int[]
1761184 38585   java.lang.Object[]
1500112 3767* InstanceKlassKlass

These are the objects taking up most memory. If you look at the count
column, you can see how many of the objects are in memory. I suggest
looking at both the size and the count columns, because your
understanding of the size of an object and the JVM's notion may
differ: most heap space is taken up by byte and char arrays and things
like that, but then encapsulated into larger objects that, themselves,
take up very little space.

You may find that you have thousands of CAS tickets in memory and that
they are very heavy. You may also find that the tickets themselves
aren't the problem, but that a 4-hour session timeout leads to sessions
with huge amounts of cached information in them. It's possible that your
webapp is simply being careless with memory if you want a 4-hour session
timeout.

You might want to invest in a real memory profiler to see what is
happening. These products can give you a better picture of large
objects that you can look at to make decisions as to where you will
apply your efforts.

- -chris
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Re: JNI problem

[Christopher Schultz]

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Mohamedin,

On 10/7/2009 10:40 AM, Mohamedin wrote:
 Dear all,
 
 I am trying to use a JNI library written by me that uses
 GraphicsMagick wand. It is working fine as a stand alone java
 application but when I tried to use it in tomcat it give me this error
 and tomcat crashed.

Technically speaking, the JVM has crashed, not Tomcat.

 I am running on:
 
 AMD64
 Tomcat 6.0.20
 CATALINA_OPTS = -server -Xms512m -Xmx2048m 
 -Djava.library.path=/usr/lib/apache-tomcat-6.0.20/shared/lib/:/usr/local/lib/
 
 Please help
 
 *** glibc detected *** /usr/bin/java: malloc(): memory corruption: 
 0x7f5614455720 ***
 === Backtrace: =
 /lib/libc.so.6[0x7f56b0cc7948]
 /lib/libc.so.6[0x7f56b0cca17c]
 /lib/libc.so.6(__libc_malloc+0x98)[0x7f56b0ccba78]
 /usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(NewMagickWand+0x13)[0x7f561b7068de]
 /usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(reduce_quality_to+0x26)[0x7f561b6f71f6]
 /usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(reduce_quality+0x88)[0x7f561b6f74e8]
 /usr/lib/apache-tomcat-6.0.20/shared/lib/libPhotoOperations.so(Java_com_vehicle_netapp_backend_objects_photo_PhotoOperations_reduceQuality+0x68)[0x7f561b6f7688]
 [0x7f56a95ca542]

Since your code is definitely involved, here (the stack trace above
shows 4 layers of your code before glibc is involved), I suspect your
code is to blame for this problem.

Tomcat does not use any native code directly (except for tcnative if you
are using that). Are you using tcnative? If so, disable it and re-try to
convince yourself that this is not a Tomcat problem. I'm not saying it
is definitely /not/ a Tomcat problem, but chances are that it's your
code at fault.

My experience with native code from Java is that when memory corruption
is found in one instance but not another and the code is the same, then
there is probably some bug in your code that is sensitive to re-location
of your code within memory. That is, you are making assumptions about
your environment that are not valid when running from within a JVM (or
they work sometimes, but not other times because more code gets loaded
when running under an app server).

How much of your JNI code are you willing to post? Typically, one
develops a native library that has nothing to do with Java, and then
writes a Java wrapper around that code which is little more than the
plumbing necessary to convert data between Java-style objects, arrays,
etc. and C-style data structures. Have you done that? If so, go ahead
and post the JNI-specific layer.

If not, I think you're playing with fire by writing a native library
that does a great deal of Java interaction.

- -chris
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Re: mod_jk problem related to multiple hosts on Apache and Tomcat

[Tsirkin Evgeny]

What Chuck means is that you need
docBase=/var/lib/tomcat5/webapps/alfresco

On Wed, Oct 7, 2009 at 8:51 PM, Caldarale, Charles R 
chuck.caldar...@unisys.com wrote:

  From: Maciej Zabielski [mailto:m...@tessel.pl]
  Subject: mod_jk problem related to multiple hosts on Apache and Tomcat
 
  Tomcat Host
  Host name=localhost debug=0 appBase=webapps unpackWARs=true
 autoDeploy=true
xmlValidation=false xmlNamespaceAware=false
Context path= docBase=/var/lib/tomcat5/webapps/
Aliasalfresco.domain.com/Alias
  /Host

 I can't advise you about the httpd-related stuff, but the above is clearly
 wrong.  The docBase attribute of a Context must not be the same as the
 Host appBase; docBase should point to some directory or .war file directly
 *underneath* the appBase directory.  (Your other Host element is correct.)

  - Chuck


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RE: Getting an error with the Tomcat Manager on version 6.0.14.

[Razvan Poenaru]

Hi Chuck,
 
Thanks a lot for the answer.
 
This is the manager.xml file I have in \webapps\manager directory:
 
!--
 
Context configuration file for the Tomcat Manager Web App
 
$Id: manager.xml 303123 2004-08-26 17:03:35Z remm $
 
--
 

Context docBase=${catalina.home}/server/webapps/manager
 privileged=true antiResourceLocking=false
antiJARLocking=false
 
  !-- Link to the user database we will get roles from --
  ResourceLink name=users global=UserDatabase
type=org.apache.catalina.UserDatabase/
 
/Context
 
 
I do not have any contex.xml file in \webapps\manager\MET-INF
 
I am new to Tomcat. We can not upgrade due to SOX requirements. Lots of
Testing involved.
 

Regards,
 
Razvan  Poenaru |Sr.Programmer/Analyst |Space Missions -MDA
(905) 790 2800
x4626|razvan.poen...@mdacorporation.com|www.mdacorporation.com
Canada – 9445 Airport Road, Brampton, ON – L6S 4J3


 Caldarale, Charles R chuck.caldar...@unisys.com 10/7/2009 1:44
PM 
 From: Razvan Poenaru [mailto:razvan.poen...@mdacorporation.com] 
 Subject: Getting an error with the Tomcat Manager on version 6.0.14.
 
 I am getting the following error when trying to access the Tomcat
 Manager on Tomcat 6.0.14:

Access it how?

 root cause
 java.lang.SecurityException: Servlet of class
 org.apache.catalina.manager.HTMLManagerServlet is privileged and
cannot
 be loaded by this web application

Looks like you may have lost the privileged=true attribute in the
manager's Context element.  Look in
[appBase]/manager/META-INF/context.xml and see what it says.  Also check
if there's a conf/Catalina/[host]/manager.xml that might be overriding
the one packaged with the webapp.

Any reason you can't move up to a newer version?

- Chuck


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RE: Getting an error with the Tomcat Manager on version6.0.14.

[Caldarale, Charles R]

 From: Razvan Poenaru [mailto:razvan.poen...@mdacorporation.com]
 Subject: RE: Getting an error with the Tomcat Manager on version6.0.14.
 
 This is the manager.xml file I have in \webapps\manager directory:
 Context docBase=${catalina.home}/server/webapps/manager
  privileged=true antiResourceLocking=false
 antiJARLocking=false

The above appears to have been left over from a version of Tomcat prior to 
6.0.x; the docBase attribute is incorrect (and shouldn't actually be there at 
all); there is no ${catalina.home}/server directory on Tomcat 6.  The above 
file does not exist on a current Tomcat download.

   !-- Link to the user database we will get roles from --
   ResourceLink name=users global=UserDatabase
 type=org.apache.catalina.UserDatabase/
 /Context

I don't think the above ResourceLink is of much use.

 I do not have any contex.xml file in \webapps\manager\MET-INF

There should be one - it's part of the standard Tomcat download, so someone has 
removed it.  The proper one looks like this:

Context antiResourceLocking=false privileged=true /

and is located in ${catalina.home}/webapps/manager/META-INF/context.xml.

You might want to download a copy of 6.0.14 from the archives and compare it 
with what you have; looks like someone has improperly mucked around with the 
structure.
http://archive.apache.org/dist/tomcat/tomcat-6/v6.0.14/bin/


 - Chuck

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RE: Getting an error with the Tomcat Manager on version6.0.14.

[Razvan Poenaru]

Hi Chuck,
 
I downloaded the 6.0.14 version, installed it on an other machine and
copy the wrong or missing files to the bad installation. It is working
now.
 
Thanks a lot for help.
 

Regards,
 
Razvan  Poenaru |Sr.Programmer/Analyst |Space Missions -MDA
(905) 790 2800
x4626|razvan.poen...@mdacorporation.com|www.mdacorporation.com
Canada – 9445 Airport Road, Brampton, ON – L6S 4J3


 Caldarale, Charles R chuck.caldar...@unisys.com 10/7/2009 3:05
PM 
 From: Razvan Poenaru [mailto:razvan.poen...@mdacorporation.com] 
 Subject: RE: Getting an error with the Tomcat Manager on
version6.0.14.
 
 This is the manager.xml file I have in \webapps\manager directory:
 Context docBase=${catalina.home}/server/webapps/manager
  privileged=true antiResourceLocking=false
 antiJARLocking=false

The above appears to have been left over from a version of Tomcat prior
to 6.0.x; the docBase attribute is incorrect (and shouldn't actually be
there at all); there is no ${catalina.home}/server directory on Tomcat
6.  The above file does not exist on a current Tomcat download.

   !-- Link to the user database we will get roles from --
   ResourceLink name=users global=UserDatabase
 type=org.apache.catalina.UserDatabase/
 /Context

I don't think the above ResourceLink is of much use.

 I do not have any contex.xml file in \webapps\manager\MET-INF

There should be one - it's part of the standard Tomcat download, so
someone has removed it.  The proper one looks like this:

Context antiResourceLocking=false privileged=true /

and is located in
${catalina.home}/webapps/manager/META-INF/context.xml.

You might want to download a copy of 6.0.14 from the archives and
compare it with what you have; looks like someone has improperly mucked
around with the structure.
http://archive.apache.org/dist/tomcat/tomcat-6/v6.0.14/bin/ 


- Chuck

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Re: mod_jk problem related to multiple hosts on Apache and Tomcat

[Rainer Jung]

On 07.10.2009 19:40, Maciej Zabielski wrote:
 Hello, 
 
 I have a mod_jk problem related to multiple hosts on Apache and Tomcat
 
 My setup is
 Centos 5.3 + Apache HTTPD 2.2.3 + Tomcat 5
 
 httpd.conf contains (Just before section 3) Basic mod_jk directives.
 At the end it contains two virtual hosts:
 (all sections are placed in proper files, but I have grouped them to make it 
 easier to read)
 
 
 VirtualHost *:80
   ServerName share.domain.com
   DocumentRoot /var/lib/tomcat5/ShareApp/share/
   Alias / /var/lib/tomcat5/ShareApp/share
   JkMount /* share_wrk
   Options FollowSymLinks
 /VirtualHost
 
 Worker file defined: 
 worker.list=share_wrk
 worker.share_wrk.port=8009
 worker.share_wrk.host=share.domain.com
 worker.share_wrk.type=ajp13
 worker.share_wrk.lbfactor=1
 
 Tomcat host:
   Host name=share.tessel.pl debug=0 
 appBase=/var/lib/tomcat5/ShareApp unpackWARs=true autoDeploy=true
   xmlValidation=false xmlNamespaceAware=false
   Context path= docBase=/var/lib/tomcat5/ShareApp/share/
   Aliasshare.domain.com/Alias
   /Host
 -
 
 VirtualHost *:80
   ServerName alfresco.domain.com  
   DocumentRoot /var/lib/tomcat5/webapps/alfresco
   Alias /alfresco /var/lib/tomcat5/webapps/alfresco/
JkMount /alfresco/* alfresco_wrk
   Options FollowSymLinks
 /VirtualHost
 
 Worker file:
 worker.list=alfresco_wrk
 worker.alfresco_wrk.port=8009
 worker.alfresco_wrk.host=localhost
 worker.alfresco_wrk.type=ajp13
 worker.alfresco_wrk.lbfactor=1
 
 Tomcat Host
   Host name=localhost debug=0 appBase=webapps unpackWARs=true 
 autoDeploy=true
   xmlValidation=false xmlNamespaceAware=false
   Context path= docBase=/var/lib/tomcat5/webapps/   
   Aliasalfresco.domain.com/Alias
   /Host
 -
 
 Problem description:
 Share site has dedicated host in Tomcat and is linked to dedicated host in 
 Apache - it works perfectly.
 By typing address like share.domain.com I get the proper index document 
 processed by Tomcat (from the root of the app: /index.jsp)
 
 Alfresco site on the other hand is located in the Tomcat Localhost 
 subdirectory /alfresco (webapps/alfresco/index.jsp)
 When I use this config:   JkMount /* alfresco_wrk
 I can access this site by typing alfresco.domain.com/alfresco but that is not 
 what I need :( (I want direct access without /alfresco)
 
 So when I change config to point directly into alfresco root:
 JkMount /alfresco/* alfresco_wrk
 And navigate to alfresco.domain.com I get unprocessed JSP file (displayed as 
 text) so it looks like it was not passed to Tomcat?
 (But I ended in a proper place, because index.html is displayed properly by 
 Apache itself)
 
 I can’t move alfresco to separate site as I need acees to it locally via 
 localhost:8080/alfresco address.
 
 I would greatly appretiate any suggestions!
 Thank you!

You might want to have a look at:

http://tomcat.apache.org/connectors-doc/generic_howto/proxy.html

Regards,

Rainer

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RE: mod_jk problem related to multiple hosts on Apache and Tomcat

[Maciej Zabielski]

Thank you both for your support!
You are absolutely right.

My thinking (rather unexperienced, because this is my first month with linux / 
tomcat)
was that by setting:
docBase=/var/lib/tomcat5/webapps/alfresco
alfresco would become root of localhost (as it actually does?)
and therefore would be not accessible via http://localhost:8080/alfresco (but 
it still is!)
As I have said, this address is needed for Share site as changing endpoints 
does not always work

I beleive this solves my problem for now - I will have to do some test 
tomorrow, but looks promising!

What I still don't know, how to achieve that sort of functionality for many 
hosts using only localhost.
Example:
a_domain.com - localhost:8080/app1
b_domain.com - localhost:8080/app2

As opposed to the solution that I have now:
a_domain.com - localhost:8080/app1
b_domain.com - host2:8080/app2

Well, I would have to think it over tommorow as its almost midnight in country! 
:)
Once more, thank you very much for pointing out my mistake!
___
From: Tsirkin Evgeny [tsir...@gmail.com]
Sent: Wednesday, October 07, 2009 8:50 PM
To: Tomcat Users List
Subject: Re: mod_jk problem related to multiple hosts on Apache and Tomcat

What Chuck means is that you need
docBase=/var/lib/tomcat5/webapps/alfresco

On Wed, Oct 7, 2009 at 8:51 PM, Caldarale, Charles R 
chuck.caldar...@unisys.com wrote:

  From: Maciej Zabielski [mailto:m...@tessel.pl]
  Subject: mod_jk problem related to multiple hosts on Apache and Tomcat
 
  Tomcat Host
  Host name=localhost debug=0 appBase=webapps unpackWARs=true
 autoDeploy=true
xmlValidation=false xmlNamespaceAware=false
Context path= docBase=/var/lib/tomcat5/webapps/
Aliasalfresco.domain.com/Alias
  /Host

 I can't advise you about the httpd-related stuff, but the above is clearly
 wrong.  The docBase attribute of a Context must not be the same as the
 Host appBase; docBase should point to some directory or .war file directly
 *underneath* the appBase directory.  (Your other Host element is correct.)

  - Chuck


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Re: Tomcat Repsonse question...

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Tony,

On 10/6/2009 1:32 PM, Tony Anecito wrote:
 I am running JBoss and Apache on the same box so not sure if the 
 TCP/IP stack is bypassed in that case.

It's not bypassed, but it skips a lot of steps and does sneaky things
like sharing send and receive buffers to dramatically reduce the
overhead when communicating with localhost (at least, decent *NIX TCP/IP
stacks do this... not sure about any others).

 What I am trying to do is find out where my bottlenecks are.

Tomcat itself is unlikely to be a bottleneck, except where Connectors
are concerned. There are several reasons why the connector/threads could
be a problem for you:

1. Your webapp is not responding quickly enough, resulting in a pileup
of requests. This is obviously not really Tomcat's fault.

2. You have lots of keepalive requests, and the client takes a long time
to send secondary requests. In this case, consider using the NIO
connector which doesn't allocate a request processing thread until a
request has actually been made.

3. You don't have enough request processing threads configured, and you
are simply experiencing more traffic than you expected. In this case,
your webapp is performing as expected (i.e. well) but you aren't getting
the throughput you expect because you are simply limited by your
available thread count.

If you could explain what you are observing, we might be able to steer
you toward a particular course of action.

 In my code I instrument the response time for my web service and I
 am below 1msec and if visualvm is right more like 20microseconds 
 response time for the method exposed for my web service.

That sounds reasonable, especially if you aren't hitting a database or
you already have some data cached.

 At my Thick client over the lan I am seeing 3-5msec response time
 using JBoss 4.2.2.

So, instrumenting the client gives you 3-5msec for an observed overhead
of 2-4msec? Are you using SSL or anything like that? Still localhost?

 So trying to go from tier to tier to see how fast the tiers are and
 if there is anything else I can tune. I just updated to JBoss 5.1.0
 and am seeing 1msec slower or 4-5msec but have not tuned it yet
 except for jvm settings.

Hmm...

 I am using ajp for the connector. I plan to upgrade my Apache web 
 server soon to the latest version hoping for performance improvement 
 for the ajp connector.

If performance is what you're after, ditch httpd and go straight to
Tomcat. Do you have a requirement to use httpd our front?

- -chris
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Re: Tomcat hangs for minutes between ContextConfig and StandardContext (Starting the app)

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Rainer,

On 10/6/2009 2:00 PM, Rainer Jung wrote:
 On 06.10.2009 17:41, Christopher Schultz wrote:
 
 Another possibility is that SecureRandom is taking forever to
 initialize: if your JVM is configured to use a blocking source of
 entropy, that may be the problem. This often happens in *NIX
 environments, but it appears that you are running on Microsoft Windows,
 so that's unlikely to be the problem.
 
 ... and should only be a problem if SSL is involved.

Doesn't Tomcat use SecureRandom for session id generation, at least
under certain configurations? This would trip over a blocking entropy
source regardless of SSL configuration, right?

- -chris
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Re: Tomcat training at ApacheCon

[Christopher Schultz]

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Hash: SHA1

Martin,

On 10/6/2009 4:38 PM, Martin Gainty wrote:
 bit of a stretch for folks on the east coast or midwest

Er... it's a conference, not a traveling carnival.

If you want to see the presentations, attend the conference (or hope the
presenters are kind enough to publish their presentations online).

- -chris
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Re: ssl_error_internal_error_alert in firefox only, dependent on jdk version (tomcat 5.5.26)

[Nada O'Neal]

Thanks for your continuing endeavors to help me, Chris.

I'm pointing tomcat to a safe keystore file, not the system keystore or 
any particular keystore. So, I don't have to worry about the keystore 
getting overwritten when I upgrade. Also, just by changing JAVA_HOME, I 
can start up tomcat with Java 1.5 and watch everything work, then shut 
it down and start it up in 1.6 and see this niggling issue in Firefox.


I also tried, btw, regenerating the keystore from the private key and 
the certificate using the 1.6 version keytool. This new keystore works 
with 1.5 java but has the same problem with Firefox when I start up 
Tomcat with Java 1.6.


shrug

Christopher Schultz wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Nada,

On 10/6/2009 4:51 PM, Nada O'Neal wrote:

I don't have an EV cert, it's just a standard cert signed by Equifax. I
have similar certs working on other servers. Again, it's the upgrade
from one java to another that seems to cause the problem - running java
1.5, I don't have this issue.


If you've recently upgraded, then any changes you made to the system
keystore may have been lost (which I think is a foolish thing to do, but
it looks like each version of the JRE gets its own keystore, and
upgrades don't merge or anything like that).


$ keytool -list -keystore /path/to/keystore
Enter keystore password:

Keystore type: JKS
Keystore provider: SUN

Your keystore contains 2 entries

root, Sep 29, 2009, trustedCertEntry,
Certificate fingerprint (MD5): [...]
tomcat, Sep 29, 2009, PrivateKeyEntry,
Certificate fingerprint (MD5): [...]

... is this wrong?


I'm not sure. That depends on if this is /your/ keystore or the JRE's
keystore. It also depends on what the details of those certs are: do any
of them have to do with Equifax?

All you really need is:

1. Equifax CA cert in your keystore
2. Any Equifax intermediate certificates in your keystore
3. Your own certificate in your keystore
4. The web browser has to trust either #1 or #2

I'm not altogether clear if it all has to be the same keystore: I think
that the JCE reads the system one no matter what, which should include
anything Equifax has at the top-level. You may have to import their
intermediate cert into your own keystore (or into the system one, again,
if you upgraded).

There's nothing you can do about #4 above, except that if the browser
trusts, say, #1, but you aren't providing the certificate chain between
#3 and #1 (via #2), then you'll get this error from the client.

I hope that helps,
- -chris
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RE: Tomcat hangs for minutes between ContextConfig and StandardContext (Starting the app)

[Law, Christopher]

I appreciate your responses, but I'm afraid I don't know what a blocking
entropy is.  Also, I don't appear to have any issues in resolving or
referencing DTDs during building.

I had posted another email indicating some more behavior, basically that
the delay occurs only when a new WAR file is deployed.  If the WAR file
doesn't change, I can re-deploy it without any delays.

In addition, I grabbed some thread dumps during the delay.  But I don't
know enough to know what to look for.  I compared two of the thread
dumps taken one-minute apart.  The only two differences in the files are
the timestamp at the top and the JNI global references count at the
bottom (the earlier dump showed 921, the later, 959).
Here is the earlier thread dump.  Again, any help is greatly
appreciated:

---8---
--
2009-10-06 19:44:47
Full thread dump Java HotSpot(TM) Client VM (11.2-b01 mixed mode,
sharing):

Low Memory Detector daemon prio=6 tid=0x02c41800 nid=0xae0 runnable
[0x..0x]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
- None

CompilerThread0 daemon prio=10 tid=0x02c3bc00 nid=0x490 waiting on
condition [0x..0x02eef9bc]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
- None

Attach Listener daemon prio=10 tid=0x02c3a400 nid=0xd2c waiting on
condition [0x..0x]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
- None

Signal Dispatcher daemon prio=10 tid=0x02c39000 nid=0xc18 runnable
[0x..0x]
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
- None

Finalizer daemon prio=8 tid=0x02c30c00 nid=0x99c in Object.wait()
[0x02dff000..0x02dffa94]
   java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 0x088f0288 (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:116)
- locked 0x088f0288 (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:132)
at
java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)

   Locked ownable synchronizers:
- None

Reference Handler daemon prio=10 tid=0x02c2f800 nid=0x9ec in
Object.wait() [0x02daf000..0x02dafb14]
   java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on 0x088f0310 (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:485)
at
java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
- locked 0x088f0310 (a java.lang.ref.Reference$Lock)

   Locked ownable synchronizers:
- None

main prio=6 tid=0x002a7000 nid=0xd5c runnable [0x0090f000..0x0090fe54]
   java.lang.Thread.State: RUNNABLE
at java.io.FileOutputStream.close0(Native Method)
at java.io.FileOutputStream.close(FileOutputStream.java:279)
at java.io.FilterOutputStream.close(FilterOutputStream.java:143)
at
org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:324)
at
org.apache.catalina.startup.ExpandWar.expand(ExpandWar.java:158)
at
org.apache.catalina.startup.ContextConfig.fixDocBase(ContextConfig.java:
883)
at
org.apache.catalina.startup.ContextConfig.init(ContextConfig.java:1012)
at
org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.j
ava:279)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSu
pport.java:117)
at
org.apache.catalina.core.StandardContext.init(StandardContext.java:5338)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4086
)
- locked 0x088f0710 (a
org.apache.catalina.core.StandardContext)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.ja
va:791)
- locked 0x088f08a0 (a java.util.HashMap)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at
org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:830)
at
org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:719)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:490)
at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1149)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:31
1)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSu
pport.java:117)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
- locked 0x088f0500 (a org.apache.catalina.core.StandardHost)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
- locked 0x088f0500 (a 

RE: Tomcat hangs for minutes between ContextConfig and StandardContext (Starting the app)

[Caldarale, Charles R]

 From: Law, Christopher [mailto:chris@snapon.com]
 Subject: RE: Tomcat hangs for minutes between ContextConfig and
 StandardContext (Starting the app)
 
 I'm afraid I don't know what a blocking entropy is.

/dev/random is the system-provided random byte stream for UNIX/Linux and some 
other platforms.  In order to generate a reasonably random sequence, it needs 
sources of randomness, such as keyboard interrupts, mouse movements, 
radioactive decay; than randomness is termed entropy, and until there's enough 
of it, the stream will block when requests are made to it.

 main prio=6 tid=0x002a7000 nid=0xd5c runnable
 [0x0090f000..0x0090fe54]
java.lang.Thread.State: RUNNABLE
   at java.io.FileOutputStream.close0(Native Method)
   at java.io.FileOutputStream.close(FileOutputStream.java:279)
   at java.io.FilterOutputStream.close(FilterOutputStream.java:143)

The above is the interesting one: it's stuck in close(), waiting for something 
in the underlying file system.  Since you're on Windows, you may need to set 
the antiJARLocking and antiResourceLocking attributes in the Context element 
for your webapp.
http://tomcat.apache.org/tomcat-6.0-doc/config/context.html

 - Chuck


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Re: ssl_error_internal_error_alert in firefox only, dependent on jdk version (tomcat 5.5.26)

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Nada,

On 10/7/2009 5:28 PM, Nada O'Neal wrote:
 I'm pointing tomcat to a safe keystore file, not the system keystore or
 any particular keystore. So, I don't have to worry about the keystore
 getting overwritten when I upgrade. Also, just by changing JAVA_HOME, I
 can start up tomcat with Java 1.5 and watch everything work, then shut
 it down and start it up in 1.6 and see this niggling issue in Firefox.

Okay, I would do a verbose dump of both system keystores and look for
the Equifax entries for each. Perhaps there's a missing Equifax cert in
the 1.6 keystore that you just have to import. I would import this
certificate into your safe keystore if and when you identify which one
it is.

You could also try contacting Equifax's SSL technical support. They
might have some suggestions.

Hope that helps,
- -chris
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RE: Tomcat hangs for minutes between ContextConfig and StandardContext (Starting the app)

[Law, Christopher]

Thanks, Chuck, I'll take a look into this.

Appreciate it.

Chris 

-Original Message-
From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] 
Sent: Wednesday, October 07, 2009 5:46 PM
To: Tomcat Users List
Subject: RE: Tomcat hangs for minutes between ContextConfig and
StandardContext (Starting the app)

 From: Law, Christopher [mailto:chris@snapon.com]
 Subject: RE: Tomcat hangs for minutes between ContextConfig and 
 StandardContext (Starting the app)
 
 I'm afraid I don't know what a blocking entropy is.

/dev/random is the system-provided random byte stream for UNIX/Linux and
some other platforms.  In order to generate a reasonably random
sequence, it needs sources of randomness, such as keyboard interrupts,
mouse movements, radioactive decay; than randomness is termed entropy,
and until there's enough of it, the stream will block when requests are
made to it.

 main prio=6 tid=0x002a7000 nid=0xd5c runnable 
 [0x0090f000..0x0090fe54]
java.lang.Thread.State: RUNNABLE
   at java.io.FileOutputStream.close0(Native Method)
   at java.io.FileOutputStream.close(FileOutputStream.java:279)
   at java.io.FilterOutputStream.close(FilterOutputStream.java:143)

The above is the interesting one: it's stuck in close(), waiting for
something in the underlying file system.  Since you're on Windows, you
may need to set the antiJARLocking and antiResourceLocking attributes in
the Context element for your webapp.
http://tomcat.apache.org/tomcat-6.0-doc/config/context.html

 - Chuck


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RE: Tomcat training at ApacheCon

[Martin Gainty]

the springsource folks provide occasional presentations and lectures here in 
the east

..then again if they publish on youtube we could all see it..
Martin Gainty 
__ 
Verzicht und Vertraulichkeitanmerkung/Note de déni et de confidentialité
 
Diese Nachricht ist vertraulich. Sollten Sie nicht der vorgesehene Empfaenger 
sein, so bitten wir hoeflich um eine Mitteilung. Jede unbefugte Weiterleitung 
oder Fertigung einer Kopie ist unzulaessig. Diese Nachricht dient lediglich dem 
Austausch von Informationen und entfaltet keine rechtliche Bindungswirkung. 
Aufgrund der leichten Manipulierbarkeit von E-Mails koennen wir keine Haftung 
fuer den Inhalt uebernehmen.
Ce message est confidentiel et peut être privilégié. Si vous n'êtes pas le 
destinataire prévu, nous te demandons avec bonté que pour satisfaire informez 
l'expéditeur. N'importe quelle diffusion non autorisée ou la copie de ceci est 
interdite. Ce message sert à l'information seulement et n'aura pas n'importe 
quel effet légalement obligatoire. Étant donné que les email peuvent facilement 
être sujets à la manipulation, nous ne pouvons accepter aucune responsabilité 
pour le contenu fourni.




 Date: Wed, 7 Oct 2009 17:20:23 -0400
 From: ch...@christopherschultz.net
 To: users@tomcat.apache.org
 Subject: Re: Tomcat training at ApacheCon
 
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 Martin,
 
 On 10/6/2009 4:38 PM, Martin Gainty wrote:
  bit of a stretch for folks on the east coast or midwest
 
 Er... it's a conference, not a traveling carnival.
 
 If you want to see the presentations, attend the conference (or hope the
 presenters are kind enough to publish their presentations online).
 
 - -chris
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Re: mod_jk problem related to multiple hosts on Apache and Tomcat

[André Warnier]

One real question is why you are bothering with an Apache httpd in 
front, since unless I saw this wrong, you are proxying absolutely 
everything to Tomcat, in both virtual hosts.

JkMount /* etc..

Why not just turn off Apache, and have Tomcat listen on port 80 ?
You would save yourself some complication and some overhead.


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Re: Tomcat Repsonse question...

[Tony Anecito]

Thanks Christopher for the reply,

I am using Apache Web server for the front end to serve my html requests. I 
have thought about using JBoss with it's Tomcat as the front end Apache as the 
back end for handling ordinary http requests but have not found anyone who has 
done that. This is so I use the standard port 80 for requests over the internet.

I think I narrowed down most of the time to calls by web start on the client 
side for permissions check for every request. I left a forum message on 
java.net about it and hope to get an answer.

Web start does do keep-alive requests I believe so maybe that is something to 
consider.

My goal is to see if I can get response times over the lan under 1msec using 
standard cheap hardware and open source software. I am close to my 1msec goal 
(measured at the client) and know if I upgrade my old AMD64 5200+ I use for my 
server to say a Phenom II quad say a 955 I might be able to pull it off.

So right now by tier.

Client PC: 4-5msec measured after message received from JAX-WS proxy in code.

Apache: logs 0 microsecond (running on windows so suspect 15msec accuracy from 
timers even though microsecond resolution expected in Apache logs)

Tomcat: 20 microseconds response time measured at web service method called by 
client. I am using cache at this tier.

For those results client/Apache/Tomcat(Jboss) are on same physical PC. If I try 
from another client on lan I get the same response time at the client. Thus 
routers/switches (1Gbps) are not noticable from response time perspective right 
now.

I hope this helps answer your question.

Best Regards,
-Tony



--- On Wed, 10/7/09, Christopher Schultz ch...@christopherschultz.net wrote:

 From: Christopher Schultz ch...@christopherschultz.net
 Subject: Re: Tomcat Repsonse question...
 To: Tomcat Users List users@tomcat.apache.org
 Date: Wednesday, October 7, 2009, 3:14 PM
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1
 
 Tony,
 
 On 10/6/2009 1:32 PM, Tony Anecito wrote:
  I am running JBoss and Apache on the same box so not
 sure if the 
  TCP/IP stack is bypassed in that case.
 
 It's not bypassed, but it skips a lot of steps and does
 sneaky things
 like sharing send and receive buffers to dramatically
 reduce the
 overhead when communicating with localhost (at least,
 decent *NIX TCP/IP
 stacks do this... not sure about any others).
 
  What I am trying to do is find out where my
 bottlenecks are.
 
 Tomcat itself is unlikely to be a bottleneck, except where
 Connectors
 are concerned. There are several reasons why the
 connector/threads could
 be a problem for you:
 
 1. Your webapp is not responding quickly enough, resulting
 in a pileup
 of requests. This is obviously not really Tomcat's fault.
 
 2. You have lots of keepalive requests, and the client
 takes a long time
 to send secondary requests. In this case, consider using
 the NIO
 connector which doesn't allocate a request processing
 thread until a
 request has actually been made.
 
 3. You don't have enough request processing threads
 configured, and you
 are simply experiencing more traffic than you expected. In
 this case,
 your webapp is performing as expected (i.e. well) but you
 aren't getting
 the throughput you expect because you are simply limited by
 your
 available thread count.
 
 If you could explain what you are observing, we might be
 able to steer
 you toward a particular course of action.
 
  In my code I instrument the response time for my web
 service and I
  am below 1msec and if visualvm is right more like
 20microseconds 
  response time for the method exposed for my web
 service.
 
 That sounds reasonable, especially if you aren't hitting a
 database or
 you already have some data cached.
 
  At my Thick client over the lan I am seeing 3-5msec
 response time
  using JBoss 4.2.2.
 
 So, instrumenting the client gives you 3-5msec for an
 observed overhead
 of 2-4msec? Are you using SSL or anything like that? Still
 localhost?
 
  So trying to go from tier to tier to see how fast the
 tiers are and
  if there is anything else I can tune. I just updated
 to JBoss 5.1.0
  and am seeing 1msec slower or 4-5msec but have not
 tuned it yet
  except for jvm settings.
 
 Hmm...
 
  I am using ajp for the connector. I plan to upgrade my
 Apache web 
  server soon to the latest version hoping for
 performance improvement 
  for the ajp connector.
 
 If performance is what you're after, ditch httpd and go
 straight to
 Tomcat. Do you have a requirement to use httpd our front?
 
 - -chris
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Re: JNI problem

[André Warnier]

Christopher Schultz wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Mohamedin,

On 10/7/2009 10:40 AM, Mohamedin wrote:

Dear all,

I am trying to use a JNI library written by me that uses
GraphicsMagick wand. It is working fine as a stand alone java
application but when I tried to use it in tomcat it give me this error
and tomcat crashed.



Considering the above, might it simply be not thread-safe ?

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Re: java.lang.OutOfMemoryError: Java heap space

[Joe Hansen]

WoW! jmap was a great command to learn Chris! Thank you so much!

I generated a histogram of the Objects in the java heap (while things
were stable) and here's what I got:
Object Histogram:

SizeCount   Class description
---
149989048   3496198 char[]
847084323529518 java.lang.String
58308016560654  tw.beans.TWFotoBean
35620304179282  byte[]
2328687230767   int[]
18220184142094  * ConstMethodKlass
14932056622169  java.sql.Date
10235120142094  * MethodKlass
1016478490757   tw.beans.TWFotoSetBean
8878248 134561  java.lang.Object[]
7949144 16190   * ConstantPoolKlass
6147768 16190   * InstanceKlassKlass
4590176 13997   * ConstantPoolCacheKlass
...
...

As you've pointed out, most of the data is taken by character arrays,
Strings, integer arrays, byte arrays, Foto and FotoSet beans! There
were just 67 Ticket entries (related to CAS) and the size of the
Ticket objects wasn't huge either.

Seeing the histogram results was an eye opener. I am wondering if
Rainer was right all along. Is it just the application data (FotoBean
and FotoSetBean) that's inundating the java heap?

I had changed the session-timeout in server.xml from 30 minutes to 240
minutes. That means an HTTP Session would now last 8 times longer.
Since the Garbage Collector runs only when the session expires, the
application's memory needs are probably increased 8 fold (Am I
right?). And I am storing the FotoBeans and FotoSetBeans in each
user's HTTP Session. As I mentioned before, previously the java heap
was set to the default, 64MB, and it used to be sufficient. From the
time I changed the session-timeout, even 512MB (= 64 X 8) is
insufficient.

Should I just decrease the session-timeout to 2 hours and see if 512MB
is sufficient? Any other thoughts/ideas guys?

Thanks again Chris,
Joe

Here are all the Ticket entries in the heap:
96  4   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
72  3   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
72  3   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
72  3   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
72  3   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
72  3   org.jasig.cas.util.DefaultUniqueTicketIdGenerator
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
24  1   org.jasig.cas.web.flow.SendTicketGrantingTicketAction
24  1   
org.acegisecurity.providers.cas.ticketvalidator.CasProxyTicketValidator
16  1   org.jasig.cas.util.SamlCompliantUniqueTicketIdGenerator
16  1   org.jasig.cas.ticket.registry.DefaultTicketRegistry
16  1   
org.jasig.cas.ticket.registry.support.DefaultTicketRegistryCleaner
16  1   org.jasig.cas.util.SamlCompliantUniqueTicketIdGenerator
16  1   org.jasig.cas.ticket.registry.DefaultTicketRegistry
16  1   org.acegisecurity.providers.cas.proxy.RejectProxyTickets
16  1   org.jasig.cas.web.flow.GenerateServiceTicketAction
16  1   org.jasig.cas.ticket.registry.DefaultTicketRegistry
16  1   
org.jasig.cas.ticket.registry.support.DefaultTicketRegistryCleaner
16  1   org.acegisecurity.providers.cas.proxy.RejectProxyTickets
16  1   
org.jasig.cas.ticket.registry.support.DefaultTicketRegistryCleaner
16  1   org.jasig.cas.web.flow.GenerateServiceTicketAction
16  1   org.jasig.cas.util.SamlCompliantUniqueTicketIdGenerator
16  1   org.acegisecurity.providers.cas.cache.EhCacheBasedTicketCache
16  1   org.acegisecurity.providers.cas.cache.EhCacheBasedTicketCache
16  1   
org.jasig.cas.ticket.registry.support.DefaultTicketRegistryCleaner
16  1   org.jasig.cas.util.SamlCompliantUniqueTicketIdGenerator
16  1   org.jasig.cas.web.flow.GenerateServiceTicketAction
16  1   org.acegisecurity.providers.cas.proxy.RejectProxyTickets
16  1   
org.jasig.cas.ticket.registry.support.DefaultTicketRegistryCleaner
16  1   org.jasig.cas.web.flow.GenerateServiceTicketAction
16  1   org.acegisecurity.providers.cas.proxy.RejectProxyTickets
16  1   org.jasig.cas.ticket.registry.DefaultTicketRegistry
16  

Re: JNI problem

[Christopher Schultz]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

André,

On 10/7/2009 8:18 PM, Warnier wrote:
 Christopher Schultz wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Mohamedin,

 On 10/7/2009 10:40 AM, Mohamedin wrote:
 Dear all,

 I am trying to use a JNI library written by me that uses
 GraphicsMagick wand. It is working fine as a stand alone java
 application but when I tried to use it in tomcat it give me this error
 and tomcat crashed.

 Considering the above, might it simply be not thread-safe ?

It's definitely possible, and likely probably. I'm guessing that
GraphicsMagick itself /is/ threadsafe, so I wonder if the OP wrote a
broken JNI bridge... which is why I was asking for the code.

- -chris
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RE: Tomcat Repsonse question...

[Caldarale, Charles R]

 From: Tony Anecito [mailto:adanec...@yahoo.com]
 Subject: Re: Tomcat Repsonse question...
 
 I am using Apache Web server for the front end to serve my html
 requests. I have thought about using JBoss with it's Tomcat as the
 front end Apache as the back end for handling ordinary http requests
 but have not found anyone who has done that. This is so I use the
 standard port 80 for requests over the internet.

Again, you can simply eliminate httpd, and let JBoss/Tomcat service the static 
html requests.  Configure the HTTP Connector in JBoss/Tomcat to use port 80, 
and put your static content under Tomcat's appBase directory.  That will 
eliminate some of the latency you're observing.

 - Chuck


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Re: java.lang.OutOfMemoryError: Java heap space

[Christopher Schultz]

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Joe,

On 10/7/2009 8:40 PM, Joe Hansen wrote:
 WoW! jmap was a great command to learn Chris! Thank you so much!

Yeah, it's great as a poor-man's memory profiler. On the other hand, I
haven't seen a big-time memory profiler offer such a simple view of
everything since Borland's OptimizeIt.

 As you've pointed out, most of the data is taken by character arrays,
 Strings, integer arrays, byte arrays, Foto and FotoSet beans! There
 were just 67 Ticket entries (related to CAS) and the size of the
 Ticket objects wasn't huge either.

Yup, it looks like you have more of your application objects taking up
memory than the tickets you were worried about.

 I had changed the session-timeout in server.xml from 30 minutes to 240
 minutes. That means an HTTP Session would now last 8 times longer.
 Since the Garbage Collector runs only when the session expires, the
 application's memory needs are probably increased 8 fold (Am I
 right?).

Er, the GC runs all the time, but the objects in the session are not
cleaned-out until the session expires. You might want to consider
cleaning your sessions a bit more regularly. You can couple
session-object expiration with lazy instantiation/fetch for a solution
that can keep your sessions lightweight yet allow insanely long session
timeouts. It will require you to do some additional work, but improved
stability is probably worth it.

 Should I just decrease the session-timeout to 2 hours and see if 512MB
 is sufficient? Any other thoughts/ideas guys?

I think your session timeout should be dictated by your business
requirements, not technical limitations (since this is a relatively low
technical hurdle).

Is it an absolute requirement that these objects be stored in the
session at all? If so, then maybe the caching strategy can be tweaked a
bit to allow both requirements to peacefully coexist.

There are even techniques that will allow your session objects to expire
when memory gets tight (which is super cool IMO).

- -chris
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RE: java.lang.OutOfMemoryError: Java heap space

[Caldarale, Charles R]

 From: Christopher Schultz [mailto:ch...@christopherschultz.net]
 Subject: Re: java.lang.OutOfMemoryError: Java heap space
 
 There are even techniques that will allow your session objects to
 expire when memory gets tight (which is super cool IMO).

To put a name on the above technique, read up on using SoftReference objects to 
track entries in your cache(s).  These will allow GC to discard objects not in 
immediate use when the heap is full.
http://www.ibm.com/developerworks/java/library/j-jtp01246.html
http://java.sun.com/javase/6/docs/api/java/lang/ref/SoftReference.html

 - Chuck


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Re: Tomcat Repsonse question...

[Christopher Schultz]

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Tony,

On 10/7/2009 8:16 PM, Tony Anecito wrote:
 I am using Apache Web server for the front end to serve my html
 requests.

Why? Tomcat can serve those requests quite well.

 I have thought about using JBoss with it's Tomcat as the
 front end Apache as the back end for handling ordinary http requests
 but have not found anyone who has done that.

That's because it would be silly to do that. Just use tcnative with
sendFile enabled on your HTTP Connector: it's the same as
back-ending (whatever that means) Tomcat with Apache httpd.

 This is so I use the
 standard port 80 for requests over the internet.

Tomcat can use port 80 just fine.

http://wiki.apache.org/tomcat/HowTo#How_to_run_Tomcat_without_root_priviledges.3F

(Please ignore the misspelling of privileges)

 Web start does do keep-alive requests I believe so maybe that is
 something to consider.

Why would Java WebStart send keep-alive requests? Doesn't it just
download a Java application and run it on the client side? Continued
communication with the server just seems ... completely unnecessary.

 My goal is to see if I can get response times over the lan under
 1msec using standard cheap hardware and open source software.

How fast is your LAN? Using standard ping over a 802.11g network, I get
response times around 3/4ms, and that's just to the TCP/IP stack and
back. You are talking about adding HTTP protocol decoding, request
delegation, and your webapp's code in under 1/4ms? That seems like a
stretch unless your web application is pretty much doing nothing.

 I am
 close to my 1msec goal (measured at the client) and know if I upgrade
 my old AMD64 5200+ I use for my server to say a Phenom II quad say a
 955 I might be able to pull it off.

Ha ha ha. Yes, buying more hardware will (usually) improve your
performance, but I suspect the network is the largest contributor to
your observed latency, and you can only get Ethernet to go so fast.

 Client PC: 4-5msec measured after message received from JAX-WS proxy
 in code.

Ha! You're running an XML web service on top of all this? If you are
worried about performance, why did you bother with web services at all? ;)

 Apache: logs 0 microsecond (running on windows so suspect 15msec
 accuracy from timers even though microsecond resolution expected in
 Apache logs)

win32 timers are horrible: I wouldn't trust them to more than 1/2sec
accuracy.

 Tomcat: 20 microseconds response time measured at web service method
 called by client. I am using cache at this tier.

Again, if measuring on win32, you may be looking at timing lies.

 For those results client/Apache/Tomcat(Jboss) are on same physical
 PC. If I try from another client on lan I get the same response time
 at the client. Thus routers/switches (1Gbps) are not noticable from
 response time perspective right now.

I disagree: if you are saying that localhost is as fast as a gigabit
network, then the numbers you are seeing simply can't be right,
especially when you're talking about the millisecond and microsecond level.

I don't think we can really help you, other than to suggest that you
switch to UDP, write your code in C, only use 32-bit little-endian data
types, and use a binary protocol that amounts to memory dumping data
using C data structures.

XML web services... ha ha ha.

- -chris
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