RE: Problems mixin getReader and getParameter

[Mauricio Nuñez]

El mié, 05-10-2005 a las 08:46 -0400, Jean-Marc Marchand escribió:
> According to the servlet's spec, the behavior of getParameter()
> is undefined if you consumed the payload first through getInputStream 
> or getReader:
> 
> "If the parameter data was sent in the request body, such as occurs with 
> an HTTP POST request, then reading the body directly via .getInputStream or 
> .getReader can interfere with the execution of .getParameter method."
> 
> Jean-Marc
> 

Thanks

I will need a print copy of the Spec ,Saint Google not illuminate me
yesterday :-) 

As workaround, I'm using the CGIParser class ( from Ostermiller utils )
to get the parameters from the InputStream.

Bye

Mauricio Nuñez



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Problems mixin getReader and getParameter

[Mauricio Nuñez]

Hi all,

I'm trying the following , with Tomcat 5.5.12 ( Also with 5.0.30 ) , 
and after reading the request.getReader(), the
request.getParameter("param") is unusable, returning null.

I'm trying setting a mark in the BufferedReader, but the result it's the
same.

Any hint?

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{

String line=null;
BufferedReader br = request.getReader();
br.mark(4096);
while((line=br.readLine())!=null)
{
System.out.println("TBK:"+line);
}
br.reset();
request.getRequestDispatcher("close").forward(request,response);
}

TIA

Mauricio Nuñez


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Re: load on startup

[Mauricio Nuñez]

Improved version without sync locking:

class SingletonObj
{ 

private static SingletonObj instance;

static
{
instance=new SingletonObj();
}

private SingletonObj()
{

}

public static SingletonObj getInstance() // without sync !
{   
return instance;
}

}

El sáb, 06-08-2005 a las 09:14 -0500, David Johnson escribió:
> {
> private static final SingletonObj singleton;
> 
> // optional - use if you want the initialization to occur as class load
> time
> // Otherwise, the initialization will occur at first call to
> getSingleton();
> 
> // static initialization at load time
> static {
> getSingelton ()/
> }
> 
> 
> private SingletonObj ()
> {
>   super ();
>   singleton = this;
> }
> 
> public static synchronized SingletonObj getSingleton ()
> {
>   if ( singleton == null )
>   {
> new SingletonObj();
>   }
>   return singleton;
> }
> 
> 
> }
> 
> 
> On Fri, 2005-08-05 at 20:11 -0700, Ming Han wrote:
> > You can use Singleton pattern, but care must be taken. 
> > 
> > For example
> > 
> > if ( singleton == null )
> > {
> >singleton = new SingletonObj();
> > }
> > 
> > There might be a case where few thread running concurrently on the null
> > checking, then multiple singleton object will be created more than one.
> > 
> > __
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam protection around 
> > http://mail.yahoo.com 
> > 
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Cluster threads

[Mauricio Nuñez]

Hello!

I'm using 2 balanced tomcat , and , monitoring via JMX, I get the
following:

Tomcat1 : 4229 started thread, peak 123, live 118
Tomcat2 : 258 started thread, peak 89,line  86

Tomcat1 is my first tomcat started. 
Tomcat2 get the sessions from Tomcat1.

The uptime is about 5 hours.

The started thread at Tomcat1 is linearly incrementaly. It's a normal
behavior?


The configuration used in both Tomcats is the following:
















Thanks

Mauricio Nuñez 



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Re: development environment

[Mauricio Nuñez]

El vie, 22-04-2005 a las 13:46 -0700, Patrick Lacson escribiÃ:
> hi All,
> 
> I'm curious to what everyone's dev environment looks like.  Here's mine:
> 

Hi,

Ubuntu Linux 5.04 
Intel(R) Pentium(R) 4 CPU 3.00GHz
1G RAM
Eclipse 3.0.2



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Re: Running Tomcat on JRocket

[Mauricio Nuñez]

Hi.

I'm using Jrockit with Tomcat under Linux. Only a problem: The getMessage() 
from the SocketException is "read" (using coyote connector) , while Tomcat is 
waiting another string for the same exception, then under a normal socket 
timeout, tomcat logs a error(with full stackTrace ) instead of a warning, 
fulling the logs.

Under RedHat 9, there are problems with NPTL :

/opt/bea/jrockit81sp1_141_03/bin/java -version
Segmentation fault
LD_ASSUME_KERNEL=2.2.5 /opt/bea/jrockit81sp1_141_03/bin/java -version

libbfd: libbfd.so: cannot open shared object file: No such file or directory
libbfd: libbfd.so: cannot open shared object file: No such file or directory
ERROR: The pthread library is unknown. Are you running a supported Linux 
distribution? (Segment-register gs appears to be unused)

LD_ASSUME_KERNEL=2.4.1 /opt/bea/jrockit81sp1_141_03/bin/java -version
java version "1.4.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_03)
BEA WebLogic JRockit(R) Virtual Machine (build 
8.1sp1-1.4.1_03-viking-Load7-linux32-borg.appeal.se-20030619-1311, Native 
Threads, Generational Concurrent Garbage Collector)

FYI

Att

MNM



El Jue 28 Ago 2003 10:02, Shapira, Yoav escribió:
> Howdy,
> Assuming you mean J:Rockit (the BEA JVM), just install JRockit and set
> your JAVA_HOME environment variable to point at the JRockit installation
> directory rather than the Sun JVM directory.  You don't need to modify
> tomcat in any way.
>
> Yoav Shapira
> Millennium ChemInformatics
>
> >-Original Message-
>
> From: Collins, Jim [mailto:[EMAIL PROTECTED]
>
> >Sent: Thursday, August 28, 2003 9:56 AM
> >To: 'Tomcat Users List'
> >Subject: Running Tomcat on JRocket
> >
> >Hi,
> >
> >Does anyone know what I have to do to run Tomcat on JRocket? I have
> >searched
> >the archive and found some mention of JRocket but no details on what to
>
> do.
>
> >I am trying to run Tomcat 4.0.6 on JRocket and I have changed JAVA_HOME
>
> to
>
> >point to JRocket but I can't get it to run.
> >
> >Thanks
> >
> >Jim.
> >
> >
> >PLEASE READ: The information contained in this email is confidential
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Re: Freeing processors

[Mauricio Nuñez]

Hi

With RH 8, you can see the threads using the option -m

Att

Mauricio 

El Jue 07 Ago 2003 09:17, Jon Wingfield escribió:
> Yep. Since RH 8 the ps command only shows the main java process. In
> previous versions ps showed the parent process and a child process for
> each thread the java app spawned. The previous behaviour often lead to
> confusion relating to memory assignment so i guess that's why RH changed
> it. Personally, I find the change annoying coz it was an easy way to see
> how many threads the app had spawned.
>
> Jon
>
> Donaldson Sgt Michael J wrote:
> > I have a question along these lines...
> > I am running jakarta-tomcat-4.1.18 on 4 different severs. 3 are Red Hat
> > 8.0 and 1 Red Hat 6.2. Same tomcat configuration on all of them. ps -el
> > shows one java process on the Red Hat 8.0 but on the 6.2 box I have
> > upward of 30 processes for java. Is there a reason for this?
> > R/S
> > Magilla
> >
> >
> >
> > Hi
> >
> > My problem is that tomcat runs out of processors and I see "No processor
> > available, rejecting this connection" in the log file. By reading earlier
> > posts a I understand that each processor is a thread and is not freed
> > until it is returned by my code, my code is hanging somewhere.
> >
> > The problem is that my servlet (the only thing running in tomcat) only
> > "forwards" requests threw CORBA to a big app that I can't change, and its
> > in their the code hangs.
> >
> > So, how can I solve this? The perfect solution would be if tomcat could
> > automaticly free processors after some timeout ( 60 s) but I have not
> > found such a feature/setting, does it exist? If not, could I do some
> > small hack in my servlet that monitors and somehow terminates (kills
> > thread or something) the request after 60s and therby freeing the
> > processor?
> >
> > I am running tomcat 4.1.12, java 1.4.0_04, redhat linux 9. I am using the
> > HttpConnector.
> >
> >
> > Thank you
> >
> > Daniel Carlsson
> > Gimlisoft AB
> > Email: [EMAIL PROTECTED]
> > Tel: 0709-744570, 031-189024
>
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Re: Freeing processors

[Mauricio Nuñez]

Hi

the HttpConnector haa a connectionTimeout parameter. Set this to a low 
razonable value, as 2 ( 20 seconds )

I was having a similar problem, using the JkConnector, but because my app 
wasn't releasing db connections to the dbcp pool. Then, the "run out of 
processors ..." is more a signal the leakaging in your app. (IMHO :-)
 
Check the timeout of your CORBA connections if available.
Att

MN


El Jue 07 Ago 2003 08:12, Daniel Carlsson escribió:
> Hi
>
> My problem is that tomcat runs out of processors and I see "No processor
> available, rejecting this connection" in the log file. By reading earlier
> posts a I understand that each processor is a thread and is not freed until
> it is returned by my code, my code is hanging somewhere.
>
> The problem is that my servlet (the only thing running in tomcat) only
> "forwards" requests threw CORBA to a big app that I can't change, and its
> in their the code hangs.
>
> So, how can I solve this? The perfect solution would be if tomcat could
> automaticly free processors after some timeout ( 60 s) but I have not found
> such a feature/setting, does it exist? If not, could I do some small hack
> in my servlet that monitors and somehow terminates (kills thread or
> something) the request after 60s and therby freeing the processor?
>
> I am running tomcat 4.1.12, java 1.4.0_04, redhat linux 9. I am using the
> HttpConnector.
>
>
> Thank you
>
> Daniel Carlsson
> Gimlisoft AB
> Email: [EMAIL PROTECTED]
> Tel: 0709-744570, 031-189024
>
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Re: HELP!! TOMCAT and MYSQL

[Mauricio Nuñez]

Hi

Replace & for & to get a valifd XML

Bye



El Dom 03 Ago 2003 06:39, engp0510 escribió:
> Thanks very much!
> Y, I have tried. But always throw org.xml.sax.SAXParseException said a ";"
> is needed to end the quote of  "password".
> Any advice?
>
>
> - Original Message -
> From: "Emmanuel G. Dialynas" <[EMAIL PROTECTED]>
> To: "engp0510" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>;
> <[EMAIL PROTECTED]>
> Sent: Sunday, August 03, 2003 6:07 PM
> Subject: Re: HELP!! TOMCAT and MYSQL
>
>
> Try:
>
>
> connectionURL="jdbc:mysql://localhost/authority?user=leeson&password="
>
> At 04:32 ìì 03/08/03 +0800, engp0510 wrote:
> >Hi,
> >  I am using Tomcat 4.0 and MySQL 4.0.14 on WIn2K Professional.
> >In Server.XML of Tomcat, I use:
> >
> >   >  driverName="org.gjt.mm.mysql.Driver"
> >
> >connectionURL="jdbc:mysql://localhost/authority?user=leeson;password="
> >  userTable="users" userNameCol="user_name"
> > userCredCol="user_pass"
> >   userRoleTable="user_roles" roleNameCol="role_name" />
> >
> >In MySQL, I set all user must access database with password and grant user
> >'leeson' with all privileges @ localhost. I can use leeson and password to
> >log into
> >MySQL. All setting of MySQL will work well when I login MySQL using CMD on
> >Win2K
> >
> >But when I start tomcat-standalone, there is always  :
> >
> >Catalina.start: LifecycleException:  Exception opening database
> > connection: java.sql.SQLException: Invalid authorizatio
> >n specification: Access denied for user: 'leeson;[EMAIL PROTECTED]'
> > (Using password: NO)
> >LifecycleException:  Exception opening database connection:
> >java.sql.SQLException: Invalid authorization specification:
> >  Access denied for user: 'leeson;[EMAIL PROTECTED]' (Using password: NO)
> >...
> >
> >So, it seem Parser regard user as "leeson;password", not "leeson". But if
> >I grant leeson all privileges but without password, the tomcat could work.
>
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Re: Help with mod_jk2 + Coyote connector + Apache 2 + TC 4.1.24

[Mauricio Nuñez]

Thanks. Yesterday i change thats setting from 1 to 0, assuming the 
persistence of the ajp13 protocol. I'll try your suggestion.

I'll try with jvm bea jrockit also. 

12 = 2 min.
That's mean 2 min of inactivity?

Someone can explain how analize data from a kill -3 ( thread dump ) .
I can see nothing rare.

TIA

Mauricio


El Jue 31 Jul 2003 12:30, Eric J. Pinnell escribió:
> Hi,
>
> Try playing with the connectionTimout setting in your server.xml.  By
> default it is set at 0.  Try using 12.  Also experiment with -1.
>
> I have found that the connector resets every once in a while with a 0.
> With 12 the connection doesn't reset but times out.
>
> I have heard that a -1 means it niether times out or resets, but I haven't
> tried it.
>
> -e
>
> On Thu, 31 Jul 2003, Mauricio [iso-8859-1] Nuñez wrote:
> > Hi
> >
> > Someone can help me, please
> >
> > My configuration is the following:
> >
> > 1) load balancer ( Hardware )
> > 2) 2 Apache2 using mod_jk2 (RedHat 9)
> > 3) 2 Tomcat4 listen at 8009 using Coyote Connector (RedHat 9) jdk sun
> > 1.4.2 4) 1 Mysql server. (Redhat 7.2 , Mysql 4.0.13)
> >
> > Our monitor alerts about a 15s timeout after 2-3 hours of activity, but i
> > can't get the exact problem. Any help, tip, solution, etc :-)
> > The Apaches show MaxClients rearched, but incrementing this number not
> > seem a good idea.
> > The workaround is reboot Tomcats, to release the connections ajp13, but i
> > need a better solution
> >
> > TIA
> >
> > Mauricio
> >
> >
> > From my httpd.conf
> >
> > 
> > ServerLimit 16
> > StartServers 2
> > MaxClients 400
> > MinSpareThreads 25
> > MaxSpareThreads 75
> > ThreadsPerChild 25
> > MaxRequestsPerChild  0
> > 
> >
> > From my workers2.properties:
> >
> > [channel.apr:tomcat5]
> > tomcatId=tomcat5
> > port=8009
> > host=10.0.0.22
> > timeout=2
> > group=lb
> >
> > [channel.apr:tomcat6]
> > tomcatId=tomcat6
> > port=8009
> > host=10.0.0.23
> > timeout=2
> > group=lb
> >
> > [lb:lb]
> > timeout=5
> > recovery=30
> > attempts=2
> > debug=0
> >
> > From my server.xml
> >
> >  > className="org.apache.coyote.tomcat4.CoyoteConnector"
> > port="8009" minProcessors="5" maxProcessors="512"
> > enableLookups="false" redirectPort="8443"
> > acceptCount="100" debug="0" connectionTimeout="0"
> > useURIValidationHack="false"
> > protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > -
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Help with mod_jk2 + Coyote connector + Apache 2 + TC 4.1.24

[Mauricio Nuñez]

Hi 

Someone can help me, please

My configuration is the following: 

1) load balancer ( Hardware )
2) 2 Apache2 using mod_jk2 (RedHat 9)
3) 2 Tomcat4 listen at 8009 using Coyote Connector (RedHat 9) jdk sun 1.4.2
4) 1 Mysql server. (Redhat 7.2 , Mysql 4.0.13)

Our monitor alerts about a 15s timeout after 2-3 hours of activity, but i 
can't get the exact problem. Any help, tip, solution, etc :-) 
The Apaches show MaxClients rearched, but incrementing this number not seem a 
good idea.
The workaround is reboot Tomcats, to release the connections ajp13, but i need 
a better solution

TIA

Mauricio 


From my httpd.conf


ServerLimit 16
StartServers 2
MaxClients 400
MinSpareThreads 25
MaxSpareThreads 75
ThreadsPerChild 25
MaxRequestsPerChild  0


From my workers2.properties:

[channel.apr:tomcat5]
tomcatId=tomcat5
port=8009
host=10.0.0.22
timeout=2
group=lb

[channel.apr:tomcat6]
tomcatId=tomcat6
port=8009
host=10.0.0.23
timeout=2
group=lb

[lb:lb]
timeout=5
recovery=30
attempts=2
debug=0

From my server.xml











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Re: JK2 performance tuning

[Mauricio Nuñez]

Checking the source code...
ChannelSocket.java ,and his parents and friends :-)



Bye!

El Jue 17 Jul 2003 17:01, Simon Pabst escribió:
> Did you find any documentation about the CoyoteConnector server.xml
> timeout? In http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/jk2.html
> its missing :-(
>
> Or did you just use a stopwatch :-)
>
> At 13:58 17.07.2003 -0400, you wrote:
> >Hi,
> >
> >Checking a bit, seconds to set the worker.properties property
> > socket_timeout and
> >millisecond setting the Connector connectionTimeuut at the server.xml
> >
> >Bye
> >
> >Mauricio
> >
> >El Jue 17 Jul 2003 13:43, Simon Pabst escribió:
> > > seconds as far as i know,
> > > not entirely sure though,
> > > anyone else knows?
> > >
> > > At 13:27 17.07.2003 -0400, you wrote:
> > > >Sorry, but
> > > >
> > > >¿timeout is in seconds or in milliseconds ?
> > > >
> > > >Thanks
> > > >
> > > >Mauricio Nuñez
> > > >
> > > >El Jue 17 Jul 2003 12:22, Simon Pabst escribió:
> > > > > You can tune CoyoteConnector acceptCount and timeout values.
> > > > > acceptCount=10 should be fine, though you never know (test test
> > > > > test
> > > > >
> > > > > :-) timeout value (in seconds) shouldn't be set to 0 (infinite) or
> > > > > : too
> > > > >
> > > > > high, else your socket count will go up much as time goes by (which
> > > > > not only consumes file descriptors but valuable JVM memory AFAIK),
> > > > > try reasonable values like 10 mins (600) (2 is suggested in jk2
> > > > > doc). If timeout is too low you could get errors too (server not
> > > > > available), so test test test again.
> > > > >
> > > > >
> > > > > If you use mod_jk2 load balancing use multithreading Apache (worker
> > > > > mpm)
> > > > >
> > > > > At 20:25 17.07.2003 +0800, you wrote:
> > > > > >I just got JK2 2.0.2 installed and working with Apache 2.0.47.
> > > > > > Since my site will have high traffic and lots of concurrent
> > > > > > connections, what parameters should I fine tune (other than the
> > > > > > min/maxProcessor in server.xml) ? How does Apache manage its jk2
> > > > > > connections to Tomcat?
> > > > > >
> > > > > >Joseph Lam
> > > > > >
> > > > > >--
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Re: JK2 performance tuning

[Mauricio Nuñez]

Hi,

Checking a bit, seconds to set the worker.properties property socket_timeout 
and
millisecond setting the Connector connectionTimeuut at the server.xml

Bye

Mauricio

El Jue 17 Jul 2003 13:43, Simon Pabst escribió:
> seconds as far as i know,
> not entirely sure though,
> anyone else knows?
>
> At 13:27 17.07.2003 -0400, you wrote:
> >Sorry, but
> >
> >¿timeout is in seconds or in milliseconds ?
> >
> >Thanks
> >
> >Mauricio Nuñez
> >
> >El Jue 17 Jul 2003 12:22, Simon Pabst escribió:
> > > You can tune CoyoteConnector acceptCount and timeout values.
> > > acceptCount=10 should be fine, though you never know (test test test
> > > :-) timeout value (in seconds) shouldn't be set to 0 (infinite) or too
> > > high, else your socket count will go up much as time goes by (which not
> > > only consumes file descriptors but valuable JVM memory AFAIK),
> > > try reasonable values like 10 mins (600) (2 is suggested in jk2
> > > doc). If timeout is too low you could get errors too (server not
> > > available), so test test test again.
> > >
> > >
> > > If you use mod_jk2 load balancing use multithreading Apache (worker
> > > mpm)
> > >
> > > At 20:25 17.07.2003 +0800, you wrote:
> > > >I just got JK2 2.0.2 installed and working with Apache 2.0.47. Since
> > > > my site will have high traffic and lots of concurrent connections,
> > > > what parameters should I fine tune (other than the min/maxProcessor
> > > > in server.xml) ? How does Apache manage its jk2 connections to
> > > > Tomcat?
> > > >
> > > >Joseph Lam
> > > >
> > > >-
> > > >To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > >For additional commands, e-mail: [EMAIL PROTECTED]
> > >
> > > -
> > > To unsubscribe, e-mail: [EMAIL PROTECTED]
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> >
> >-
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Re: JK2 performance tuning

[Mauricio Nuñez]

Sorry, but

¿timeout is in seconds or in milliseconds ?

Thanks

Mauricio Nuñez

El Jue 17 Jul 2003 12:22, Simon Pabst escribió:
> You can tune CoyoteConnector acceptCount and timeout values.
> acceptCount=10 should be fine, though you never know (test test test :-)
> timeout value (in seconds) shouldn't be set to 0 (infinite) or too high,
> else your socket count will go up much as time goes by (which not only
> consumes file descriptors but valuable JVM memory AFAIK),
> try reasonable values like 10 mins (600) (2 is suggested in jk2 doc).
> If timeout is too low you could get errors too (server not available), so
> test test test again.
>
>
> If you use mod_jk2 load balancing use multithreading Apache (worker mpm)
>
> At 20:25 17.07.2003 +0800, you wrote:
> >I just got JK2 2.0.2 installed and working with Apache 2.0.47. Since my
> >site will have high traffic and lots of concurrent connections, what
> >parameters should I fine tune (other than the min/maxProcessor in
> >server.xml) ? How does Apache manage its jk2 connections to Tomcat?
> >
> >Joseph Lam
> >
> >-
> >To unsubscribe, e-mail: [EMAIL PROTECTED]
> >For additional commands, e-mail: [EMAIL PROTECTED]
>
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Re: Class loading issue with JavaMail 1.3 and Tomcat 4.1?

[Mauricio Nuñez]

Hi,

Tomcat not allow javax.* packages into WEB-INF/lib.
Try upgrading mail.jar into common/lib



El jue, 14-11-2002 a las 12:18, Mike Meehan escribió:
> I'm having a problem using the latest JavaMail (v 1.3) with Tomcat 4.1.12.
> We had 
> been using JavaMail 1.2 and everything worked fine.
> 
> I include the mail.jar v1.3 file in our /WEB-INF/lib/ directory,
> however, I
> get an error calling a method specific to v1.3.  The code fails when I use
> the new
> constructor for InternetAddress: InternetAddress(String address, boolean
> strict)
> 
> I know that JavaMail 1.2 is bundled with Tomcat and that seems to be the
> conflict.  
> I've checked the classloader howto and I think that the web-inf/lib/mail.jar
> classes 
> should be loaded for my webapp before the common/lib/mail.jar.  I've also
> checked 
> bugzilla and have seen similar sounding problems regarding xml related jars.
> 
> 
> To troubleshoot the problem, I created a simple servlet within my webapp
> which makes 
> the straightfoward JavaMail calls to send a hardcoded message to a hardcoded
> address.
> 
> This servlet fails with the errors:
> Exception:
> javax.servlet.ServletException: Servlet execution threw an exception
>   at
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:269)
>   at
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:193)
>   at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:260)
>   ...
> Root Cause:
> java.lang.IllegalAccessError: try to access method
> javax.mail.internet.InternetAddress.(Ljava/lang/String;Z)V from class
> TestSMTP
>   ...
> 
> My code works fine if I do any one of the following:
>  - I remove mail.jar v1.2 and activation.jar from TOMCAT_HOME/common/lib 
>  - I replace TOMCAT_HOME/common/lib/mail.jar with the 1.3 version
>  - I put mail.jar v1.3 and activation.jar under JAVA_HOME/jre/lib/ext/ 
> 
> So is this a problem, or am I just not understanding how class loading
> should work when using Tomcat?
> I'd really like to be able to include whichever version of JavaMail I want
> in my own lib directory and
> not have to worry about the container's common jars.
> 
> Some more info: JDK 1.3.1_03, Tomcat 4.1.12, Win2K
> 
> Much thanks in advance for any help,
> Mike



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Tomcat 4.1.7 + remote Jboss (SUCCEFUL)

[Mauricio Nuñez]

Hi,

I'm trying to get Jboss + Tomcat working remotely.
At my test server, I install Tomcat 4.1.7 and Jboss 3.0.1 standalone.

To get my code working, i put my jdni.properties file at
WEB-INF/classes, copy all the client jars to WEB-INF/lib, and my test
ejb jar.

Then,I added and ejb-ref entry at my web.xml, defining an "ejb/Storage"
name.

>From my code, I used the tomcat' InitialContext, getting an valid
reference to my deployed EJB.

ctx.lookup("java:comp/env/ejb/Storage")

My question is:

Are all these steps necessary , or exists a shorter approach ?

Any comments are welcome.

Thanks

-

my jndi.properties in WEB-INF/classes

java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=jnp://localhost:1099

my web.xml:


 Prueba de coneccion con ejb
 ejb/Storage
 Session
 com.chile.ejb.test.StorageHome
 com.chile.ejb.test.Storage
 jnp://localhost:1099/Storage



my code:

javax.naming.InitialContext ctx=new javax.naming.InitialContext();

StorageHome home = (StorageHome) javax.rmi.PortableRemoteObject.narrow(
ctx.lookup("java:comp/env/ejb/Storage") , StorageHome.class);






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Re: integrating TOMCAT 4.0 with APACHE 2.0 - or Tomcat 3.3.1

[Mauricio Nuñez]

I'm trying the same!
I get the CVS copy of jakarta-tomcat-connector, build and mod_jk.so, but it's 
don work!
I get an error 500, handler not found.
Can somebody release an working mod_jk.so for apache 2.0 please.

Thanks


El Mar 09 Abr 2002 08:27, David Cassidy escribió:
> I'd really quite like to try Tomcat 3.3.1 with apache 2.0
>
> I've tried the binaries for apache 2 - for linux
>
> http://jakarta.apache.org/builds/jakarta-tomcat/release/v3.3.1/bin/linux/i3
>86/ mod_jk-3.3-ap20.so
> 386/mod_jk-3.3-ap20.so>
>
> Apache says 'httpd: module "mod_jk.c" is not compatible with this
> version of Apache.'
>
> If I try to build the version from source - There isn't an apache2
> version in the source
> distro of Tomcat 3.3.1
>
> Help 
>
> Thanks
>
> David
>
> Mike Dewhirst wrote:
> >has anybody successfully integrated Apache 2 with Tomcat 4? If yes, how
> >did
> >you do it, I can't figure it out. If it's RTFM -  which part, I couldn't
> >find it in the docs...
> >
> >
> >=**


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Re: Properties files.

[Mauricio Nuñez]

Hi

try this:

jar cvf properties.jar *.properties
move properties.jar to WEB-INF/lib

and restart!

bye

El Martes 26 Marzo 2002 15:56, Xiao, Wei escribió:
> Hi all,
>
> I was trying to migrating an existing application to Tomcat 4.0. We used a
> lot of properties files and just specified the directory in classpath, then
> we can call
> load("/abc.properties"). Where should I put properties files (*.properties)
> in tomcat? How should I call to load it?
>
> Thanks a lot.
>
> Wei

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Re: Tomcat Stability

[Mauricio Nuñez]

El Martes 15 Enero 2002 10:45, Laurent Féral-Pierssens escribió:
> Hi,
>
> We've been experiencing problems with stability recently. Every 2 weeks,
> Tomcat crashes with 500 errors. We now have more information about what
> happened the last time.
>
> Our configuration is:
> Tomcat 3.2.4 with Apache 1.3.20 and mod_jk
> Linux Debian, PIII 1 GHz, 512 Megs of RAM, Raid 1
>
> Basically there is only one webapp on the server that has a daily load of
> 40 000 Hits or 5 000 page views.
>
> In the logs of Apache we've discovered that someone was using Htdig to
> index the site, basically making one call every 5 sec for 45 minutes.
> That's were and when tomcat crashes.
>
> So my questions, should I ugrade the server's hardware? Would Tomcat 4
> series be more stable? or would it be just a tomcat configuration problem?
>
> Thanks in advance for your help and advice!
>
> Laurent
>

Hi.

I used a similar configuration, and migrating from Tomcat 3.2.4 to 3.3, I get 
a much better performance.

Tips :

1) About Tomcat + Apache + Linux

Upgrade also the mod_jk to support chunked input.
Check the max_threads variable on /proc/sys/kernel/max_threads.  It's your 
upper limit. 
Then check the MaxClients variable in apache httpd.conf 
Next, check the MaxThreads parameter of yout connector. This must to be 
greater than the prev MaxClient.
MaxClient + MaxThreads must to be lesser than kernel max_threads.
Also, Tomcat 3.3 stable had a bug about the MaxTheads of the connector. 
That's fixed in Tomcat 3.3.1-dev.

2) About JDK

Check your JDK. By default, max memory used for sun jdk is 64m. Try the -Xmx 
variable , and try also the -Xms variable. Use the HotSpot Server option, and 
Incremental garbage. 
Try JRockit or TowerJ.

Example : ( TOMCAT_OPTS="-server -Xms256m -Xmx256m -Xincgc" )

3) Do benchmarking.

I'm using ab ( ApacheBench).
Check your kernel variables. 
check and modify /proc/sys/vm/bdflush  ( At your risk ! :-) 
use hdparm.

4) 
Check http://www.volano.com/report
Check http://www.segel.com/10k
Check http://www.jlinux.org

I will publish a page with diferents tips or tricks and bechs

Bye

>
>
>
>
>
> --
> To unsubscribe:   
> For additional commands: 
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Tomcat 3.3 Testimonial

[Mauricio Nuñez]

Hi!

I want to tell you about my experience!

I finish to migrate from 3.2.4 to 3.3 ( about 2 hours yesterday).

I'm impressionated with its performance. 

My homepage receive 3000 hits per hours, and under 3.2.4 my servlet can't 
work, been replaced for a crontab every 5 min generating a static index.html.

Now, with 3.3, my homepage'servlet work without problems! 
It's incredible!

I'm using Linux Redhat 7.1, Blackdown java + ShudoJIT ( OpenJit don't work 
well with virtual host) , green threads (!) , as volano report suggest. 
Web Server : Apache + Mod_JK (Ajp13) + Tomcat 3.3
Others : Freemarker, Thin Oracle JDBC.

My Server is a pentium III dual  800 Mhz and 1GB Ram, and only Java Blackdown 
with green theads had work.

Sun HotSpot, JRockit 3.0 and IBM JDK fail! I guess that's its for the JDK Bug 
refered to Blocking IO.

Blackdown it's very stable, but yesterday i get a "Signal 11", and Tomcat 
died. I'm investigating , but that don't repeat until now. And it's a very 
low cost!

That it's all!

-- 
Mauricio Nuñez
Gerente Técnico Chile.com
[EMAIL PROTECTED]
http://www.chile.com
3813636 anexo 231

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Ajp13 Load Balancing TC 4.0.1

[Mauricio Nuñez]

Hi everybody!,

What is the status of the load balancing ajp13 on TC 4.0.1 ?

Thanxz!


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now chat at javasoft about tomcat

[Mauricio Nuñez]

now chat at javasoft about tomcat

Re: Session problem with WAP protocol

[Mauricio Nuñez]

Thanks. It's a better option.

- Original Message -
From: "Grzegorz Skorupa" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, January 17, 2001 10:19 AM
Subject: Re: Session problem with WAP protocol


> On Wednesday 17 January 2001 15:00, you wrote:
> > Thanks!
> > Wap support cookies.
>
> But you can't be sure that all wap browsers do.
> If you would like to prepare 100% available service, you must use url
> rewriting. IMHO.
>
> Regards
> Grzegorz Skorupa
>
> | [EMAIL PROTECTED] | http://pikosoft.and.pl | ICQ#: 2056044 | AIM:
greskor |
>
> -
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>


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Re: Session problem with WAP protocol

[Mauricio Nuñez]

Thanks!
Wap support cookies.
My servlet create the session, but when i reload the page, the Exception is
generated.
I guess the solution is change the name to the cookie associated to the
session.
I'm reading the documentation, but i can find (yet) where apply the change.



- Original Message -
From: "Christopher Kirk" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, January 17, 2001 10:18 AM
Subject: RE: Session problem with WAP protocol


>
> I cann't explain the error message with out knowing more about the code;
but
> if you are trying to use cookies then that could be your problem. To my
> knowledge (and I will point out that I have never tried it; so hopefully
> somebody will back me up when I say that) WAP does not support cookies.
>
>
> - Chris.
>
> > -Original Message-
> > From: Mauricio Nuñez [mailto:[EMAIL PROTECTED]]
> > Sent: 17 January 2001 13:07
> > To: [EMAIL PROTECTED]
> > Subject: Session problem with WAP protocol
> >
> >
> > Hi all
> > I'm working with the WAP protocol, but i get the following
> > error when i load
> > a session:
> >
> > java.lang.IllegalArgumentException: Cookie name Path is a
> > reserved token
> >
> > Any comments?
> >
> > I'm using Tomcat 3.2.1 and the wap-emulator WINWAP
> >
> > Thanks in advance!
> >
> >
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, email: [EMAIL PROTECTED]
> >
>
> -
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Session problem with WAP protocol

[Mauricio Nuñez]

Hi all
I'm working with the WAP protocol, but i get the following error when i load
a session:

java.lang.IllegalArgumentException: Cookie name Path is a reserved token

Any comments?

I'm using Tomcat 3.2.1 and the wap-emulator WINWAP

Thanks in advance!



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Re: Libs and classes are missing in 3.2.1 continue

[Mauricio Nuñez]

Ok!

Tomcat no work with classes under the web application lib directory. You
must to compress in a jar your classes


- Original Message -
From: "Andrew" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 20, 2000 3:04 PM
Subject: Re: Libs and classes are missing in 3.2.1 continue


> This doesn't work I'm talking about libs/classes in web applications
but
> not tomcat lib dir.Tomcat must take these libs/classes from predefined
> places in .WAR dir structure
> as Servlet WebApp conformant and 3.1 did it but 3.2- not.
> Thanks anywhere...
>
> P.S. I'm using W2K platform(tomcat.BAT I mean though that's no
difference;)
>
>
> - Original Message -
> From: "Mauricio Nuñez" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, December 20, 2000 8:06 PM
> Subject: Re: Libs and classes are missing in 3.2.1
>
>
> > I modified the tomcat.sh to solve this problem.
> >
> > search for unset CLASSPATH, and after this, add
> > CLASSPATH=${TOMCAT_HOME}/lib
> >
> >
> > this solve your problem !
> >
> >
> > - Original Message -
> > From: "Andrew" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, December 20, 2000 1:18 PM
> > Subject: Libs and classes are missing in 3.2.1
> >
> >
> > > Hello, I've the following problem. I've set up my context in
c:\a\b
> > and
> > > place my libs in c:\a\b\WEB-INF\lib dir;classes is in
> > > c:\a\b\WEB-INF\classes.
> > > So there is the problem not libs not classes not detected in web-app
> > > runtime( Root exception: ClassNotFoundException).In case of classes I
> mean
> > > bean classes used
> > > on JSP etc.- supply classes(not jar'ed) ,defined in different
packages.
> > For
> > > example c:\a\b\WEB-INF\classes\package1\class1.class.
> > > class1.class couldn't be found... all the same with packaged lib
> classes.
> > > Anybody help!!!
> > > P.S. With tomcat 3.1 all was OK.
> > >
> >
> >
>

Re: Libs and classes are missing in 3.2.1

[Mauricio Nuñez]

I modified the tomcat.sh to solve this problem.

search for unset CLASSPATH, and after this, add
CLASSPATH=${TOMCAT_HOME}/lib


this solve your problem !


- Original Message -
From: "Andrew" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, December 20, 2000 1:18 PM
Subject: Libs and classes are missing in 3.2.1


> Hello, I've the following problem. I've set up my context in c:\a\b
and
> place my libs in c:\a\b\WEB-INF\lib dir;classes is in
> c:\a\b\WEB-INF\classes.
> So there is the problem not libs not classes not detected in web-app
> runtime( Root exception: ClassNotFoundException).In case of classes I mean
> bean classes used
> on JSP etc.- supply classes(not jar'ed) ,defined in different packages.
For
> example c:\a\b\WEB-INF\classes\package1\class1.class.
> class1.class couldn't be found... all the same with packaged lib classes.
> Anybody help!!!
> P.S. With tomcat 3.1 all was OK.
>

What tools do you use with Tomcat?

[Mauricio Nuñez]

Hi everybody:

I want to know about the tools used by other tomcat's users. By example, i'm
running now jbuilder 3.5 + Tomcat + Apache to debug my applications, with
Redhat 6.2. Can post another apps, please.

Thanks in advance

Mauricio

What tools do you use with Tomcat?

[Mauricio Nuñez]

Mauricio Nuñez
Jefe de Proyecto Avisados.com
[EMAIL PROTECTED]

I can shutdown Tomcat

[Mauricio Nuñez]

Thanks for your attention:

I can't shutdown one of my sites, running Tomcat. I can shutdown others 3
sites, but this not.
What alternative i have?
Any comment,tip, tool is wellcome.

thanks in advance

Mauricio Nuñez

Help with virtual hosting and Tomcat 3.1

[Mauricio Nuñez]

Hi all:

I need to validate our configuration, and i need your help!

Apache 1.2.13
Tomcat 3.1

When we load apache, its send a message about recompile mod_jserv, where i
find the source code for this... and what is the command line, please  :-)
(I'm only a project manager)

We have 4 domain, running under apache 1.3.12 with Virtual host, and each
host working with an instance of Tomcat.
Each instance of tomcat is loaded with the following command:

./startup.sh -f ../conf/site1.xml
./startup.sh -f ../conf/site2.xml
./startup.sh -f ../conf/site3.xml
./startup.sh -f ../conf/site4.xml

Our directory structure is aprox the following :

tomcat/bin
tomcat/conf
tomcat/webapps/site1
tomcat/webapps/site2
tomcat/webapps/site3
tomcat/webapps/site4

When i run site1, the script load also site2,3 and 4 , but no is the
behavior we are seeking.
It is an error in our configuration?
Must i create 4 different tomcat directories?

Thanxs,

It's lot of  question, but i'm very complicated, and actually i am under
high pression. My brain is tired :-(


Mauricio

P.S: My english skill is very weak I'm learning. Sorry.

Please Help!!! Error loading tomcat

[Mauricio Nuñez]

Urgent:

somebody can give me a tip. I get the following error loading Tomcat:

SIGSEGV   11*  segmentation violation
si_signo [11]: SIGSEGV   11*  segmentation violation
si_errno [0]: Success
si_code [0]: SI_USER [pid: 0, uid: 0]
stackpointer=0xbe3feed4

Full thread dump Classic VM (Linux_JDK_1.2.2_RC4, native threads):
"Thread-6" (TID:0x40ea4980, sys_thread_t:0x446376c8, state:CW, native
ID:0x3
80f) prio=5
at java.lang.Thread.sleep(Native Method)
at freemarker.template.UpdateTimer.run(UpdateTimer.java, Compiled
Code)
at java.lang.Thread.run(Thread.java, Compiled Code)
"Thread-5" (TID:0x40ea6cf8, sys_thread_t:0x84a8440, state:MW, native
ID:0x34
0e) prio=5

Thanks

Mauricio

Help :HANDLER THREAD PROBLEM?

[Mauricio Nuñez]

I get the following exception:



HANDLER THREAD PROBLEM: java.io.IOException: Stream closed prematurely
java.io.IOException: Stream closed prematurely
at
org.apache.tomcat.service.connector.AJP12RequestAdapter.readNextReque
st(Ajp12ConnectionHandler.java, Compiled Code)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processCon
nection(Ajp12ConnectionHandler.java, Compiled Code)
at
org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.j
ava, Compiled Code)
at java.lang.Thread.run(Thread.java, Compiled Code)

What is his meaning?

Att.

Mauricio

Debugging Tomcat 3.1

[Mauricio Nuñez]

Hello:

I'm a newbie , and i need to check my servlets. How do i debug tomcat 3.1?

Thanxs
Att.

Mauricio