Hi Reinhard,
Using TC 4.1.24+ you can use ant to first run JspC and deploy the
resulting WAR using the manager app.
You can find more info here:
http://www.fwd.at/tomcat/buildmanagement-using-ant-howto.html
Johannes
Reinhard Nägele [EMAIL PROTECTED]
10.07.2003 15:38
Please respond to
Hi Mark,
*) One BIG performance improvement is to use a Filter to ZIP your
HttpServletResponses.
You can find a good example with TC 4.1.24 in the examples
(compressionFilters).
You can save lot's of network bandwidth and increase the server throughput
(e.g. 200KB page size gets compressed to
Yes,
details: http://www.fwd.at/tomcat/sharing-session-data-howto.html
(of course it's a workaround, but it works great with some restrictions
regarding session serialization and clustering as I use a Context to store
the shared session data;
using a global cookie at root you can share one
.
However, I used the Context to store the shared session data which should
be ok for smaller traffic, but might cause troubles if lot's of data have
to be pumped into shared sessions. Then I'd encourage you to use a
database or other persistence mechanisms :)
johannes
Johannes Fiala [EMAIL
Yes,
details: http://www.fwd.at/tomcat/sharing-session-data-howto.html
(of course it's a workaround, but it works great with some restrictions
regarding session serialization and clustering as I use a Context to store
the shared session data;
using a global cookie at root you can share one
.
However, I used the Context to store the shared session data which should
be ok for smaller traffic, but might cause troubles if lot's of data have
to be pumped into shared sessions. Then I'd encourage you to use a
database or other persistence mechanisms :)
johannes
Johannes Fiala [EMAIL
Hi Arnaud,
You might be interested in this.
http://www.fwd.at/tomcat/buildmanagement-using-ant-howto.html
(look at the build.xml which is available as a link inside the html file,
you find the merge-descriptors task there).
Johannes
Elisabeth Rotbach [EMAIL PROTECTED]
03.07.2003 19:10
Hi there,
I've made some tests with the gc and the -Xms and -Xmx settings.
Suppose I have a list generated from a database with a size of 10.000
records with an average of 200 bytes each. This gives 2 MB data volume.
*) If you have 128 MB heap and 64 MB stack memory assigned, against which
Hi there,
I've just set up a HOWTO describing how to share session data
(=session-based Java objects) between Contexts
http://www.fwd.at/tomcat/sharing-session-data-howto.html
I described how to share the Sessionid between two different Contexts and
how to store and retrieve the shared
Hi Yoav,
Thanks for your ideas, but how do they work out in the ant deploy
scenario, where the application actually resides in /usr/local/tomcat/
work/Standalone/localhost/manager/forms.war ?
*) Is it an option to create a symlink forms in the /webapps directory
to point to
Hi there,
I'm facing a strange problem sometimes when I'm doing an ant
undeploy/deploy:
Sometimes, the Context InitParameters don't get initialized, they simply
resume to null.
Does anybody have any idea what might cause this? It is reproducible but
happens at different times.
The problem
Hi there!
My primary focus is high availability of the Tomcat applications running
in production.
Currently it takes approximately 10 seconds to redeploy an application
using ant undeploy/deploy in production.
This means taking the whole application down for 10 seconds leaving users
with an
Hi there,
At my company some are discussing to replace our Tomcat installation with
JBoss application server.
What are the main arguments pro/contra using Tomcat/JBoss?
Is anybody able to share some production experiences?
To my mind it seems
*) if I need EJB - take JBoss
disadvantage: more
hi jim,
I had the same trouble when running jspc using ant.
Simply replacing the absolute URI (which BTW points nowhere at the sun
website) with a relative URI:
%@ taglib prefix=c uri = /WEB-INF/c.tld %
and supplying the c.tld file (below) solved the whole issue easily.
It has the additional
Hi
I cannot leave your claim unanswered here, even it is way off topic - I
don't see any info on JBoss at my homepage, so I cannot see any sentence
which is not true.
I hope your next post will be more helpful to the community here, instead
of blaming others.
cheers
Johannes
Hi Joe Sam,
Thanks for your detailed reply.
Do you know any real-life scenarios where you can't do it with Tomcat but
need EJB seriously?
So far I've done any backend-access using Apache Axis (Soap) and haven't
yet had a great desire to use RMI/EJB remote access with pages of nested
Hi manchi,
As of Tomcat 4.x the variable is called CATALINA_HOME.
If you don't set it, the startup script (startup.bat on Windows systems)
will try to guess it:
===
rem Guess CATALINA_HOME if not defined
if not %CATALINA_HOME% == goto gotHome
set CATALINA_HOME=.
Hi Rick,
First, make sure you set the log modus to DEBUG (Isapi 2.0.x: logLevel:
DEBUG, Isapi 1.x: log_level: debug).
Take a look into the Event Viewer of W2K and inspect the Application Log.
You should see error messages there indicating what doesn't work.
I posted my configuration info
hi [EMAIL PROTECTED] + Michael Maier [EMAIL PROTECTED] alias blib
(nickname of your previous posts),
thx for your reply, I've corrected J2EE to Servlets/JSPs to increase the
focus. I didn't take care of the EJB part of J2EE so far, but certainly
will in the future. My clients, however, didn't
Hi Peter,
You could also use the Commons FileUpload package of the Jakarta project:
http://jakarta.apache.org/commons/fileupload/index.html
I personally have used the cos.jar package of Jason Hunter as well and it
has served its purpose fine so far.
Johannes
joe [EMAIL PROTECTED]
Hi there,
I know it's not absolutely tomcat-specific, but maybe another Tomcat-user
has come across this issue.
We want to set up a Certificate Authority and issue self-signed
certificates to users which then will use SSLv3 client certificate
authentication to authenticate with Tomcat.
Does
Hi there,
Mark: thx for the hint, unfortunately I'm not using tomcat connector right
now. I'll come back to you if I'm using one later.
Ramsay: thx for the useful link!
just in case anybody else needs to issue certificates using openssl:
Commandline OpenSSL for
hi there,
I'm using a bunch of JSPs for each form and view inside a web application.
Currently I compile them using ANT and JSPC and then package them into a
WAR file.
This WAR-file gets deployed using ANT at the tomcat server.
However, if I only change one JSP, it would be desirable to update
Hi Yoav,
I understand this definition, but am not a 100% satisfied with it.
Hmm. Maybe here the J2EE specification of Sun is not sufficient.
Shouldn't there be some way to add templates or graphics or JSPs on the
fly (which are more layout information = view part of the MVC model)?
I'm a bit
Hi Yoav,
BTW - Let's say portability here is not my primary goal here.
What about extending the manager task so that if there are differences in
the /web/ folder (i.e. static web content)
to allow to access the /work/ directory directly and put the JSP or
graphic or whatever directly there.
HI there,
I'd like to know what professional developers do when the maximum number
of connection in a connection pool has been reached.
What should be done with requests that don't get a connection?
Should the max connection set to a very high number hoping that the number
of requests served
Hi there,
I usually track the memory consumption of each request using a debug info
which prints the free memory available.
Runtime r = Runtime.getRuntime();
long freeMem = r.freeMemory();
System.out.println(free memory: + freeMem);
I think packaging this into a memory tracking module for all
Hi Yoav/Craig,
I'll take a look at the entry points you gave me - maybe I'll find my way
through them.
Of course I'll keep you posted if I get useful results...
However, I still think it's a fundamental lack of the WAR approach not
being able to incrementally add functionality.
I originally
Hi Mike
It seems poolman is currently considerably exceeding the functionality of
dbcp.
Can you post a link where I can find it?
Is it in general preferable to use poolman instead of dbcp as dbcp
provides only a small set of functionality for production sites?
thx alot
Johannes
mike
Hi Yoav,
oops. I didn't line out that this kind of memory tracking is for testing
locally with my dev environment to see how tomcat does when handling
100.000 records of a ResultSet or so... and when memory does show up
again.
Thanks for the link, I'll investigate it later...
Is the JVMPI
hi there,
I've searched the whole forum but haven't found any definitive answer on
this issue; since I'll try to repost with different language:
If somebody runs JSPC using ANT to precompile all the JSPs, the precompile
fails if any of the JSPs in different directories has the same name.
hi jacob,
thx for the input, now it works smoothly.
However, it would be great if the config-parameter gets mentioned in the
manager app howto
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/manager-howto.html
target name=install description=Install web application
depends=compile
Hi Jacob,
My solution for the problem:
target name=install description=Install application to servlet
container
install url=${manager.url}
username=${manager.username}
password=${manager.password}
path=${app.path}
Hi there,
Has anybody yet tried to preview a xml file from the tomcat docs locally
with MS IE?
I think this makes sense if you add some sentences and want to see the
results without ant rebuild.
There are only two minor things MS IE 6.0 complains:
*) the src and
*) the alt variables are
hi there,
Imagine the following file structure for the ant build process:
/jsp/firstpart/form.jsp
/jsp/secondpart/form.jsp
if I try to compile these jsps using jspc, they get generated as expected
to
/jsp-src/firstpart/form_jsp.java
/jsp-src/secondpart/form_jsp.java
== Then I try ant compile,
Hi there,
If I try to compile a JSP with an absolute URI to a taglib like
%@ taglib prefix=c uri = http://java.sun.com/jstl/core; %
then the compiler complains:
jspc:
2003-03-30 12:30:05 - ERROR-the file '\views\mylist\list.jsp' ge
nerated the following general exception:
Hi there,
I know this is more a question about ant, but maybe a tomcat user here has
faced the same issue as I do when using a central lib directory for all of
the JAR files in the various webapps:
In the prepare task I copy the JAR files I need for my webapp into the
WEB-INF/lib folder in
Hi there,
I have the following file structure:
/jsp/myfile.jsp
/web/WEB-INF/web.xml
/web/WEB-INF/c.tld
When I run ant jspc, it looks for the web.xml file in the
/jsp/WEB-INF/web.xml directory.
So I always have to copy the /web/WEB-INF folder to the jsp directory.
Is there a way to tell the
Hi Jerome,
Yes, certainly that's what I thought at the first glance as well.
But wouldn't it make more sense to make the fileset importable from
another file (i.e. extend the FileSet datatype to allow imports from
another file)?
e.g.
build.xml:
copy todir=${build.home}/WEB-INF/lib
hi phil,
the issue has already been solved on the ant mailinglist.
if any tomcat-user is interested, I post the answer of Jake here:
If various lib.xml files contain contents similar to your copy task
below, the build.xml file might look like
?xml version=1.0 encoding=UTF-8?
!DOCTYPE
Hi Phil,
Thx for your input, I already posted to the Ant forum - if they don't
jump on this topic I'll try to use the links you sent and keep you posted
on the results
thx alot
Johannes
Phil Steitz [EMAIL PROTECTED]
30.03.2003 18:30
Please respond to
Tomcat Users List [EMAIL
Hi Dov,
Do you know how to describe a taglib with an absolute uri (e.g.
http://java.sun.com/jstl/core) in web.xml? Can you post a sample here?
I haven't had to describe my taglib in web.xml yet, because I used the
/WEB-INF/xxx.tld syntax in my JSPs, thus they always have worked so far!
thx
Hi Jacob,
1.) 1.000 thanks - this was the answer I needed.
Do you know where this is to be found in the docs??? I spent quite some
time with searching this forum and the internet, but didn't find any
recommendation like that you just gave me.
2.) I see
p.s. I also have found that
ant deploy
will give me the context as desired (if stored in META-INF/context.xml as
recommended by you)
however, ant install does not create the same result.
There the context.getInitParameter() and JNDI-configuration
(ResourceLinks) both return null and are not
Hi Jeff,
no, using the ant deploy task it worked smoothly.
I was just wondering what the install task is all about (if it's not
working)
thx
Johannes
Jeff Jensen [EMAIL PROTECTED]
29.03.2003 15:02
Please respond to
Tomcat Users List [EMAIL PROTECTED]
To
'Tomcat Users List' [EMAIL
HI there,
In my app I need to store files after a transaction is complete.
I want to keep my application portable, so where should I store such files
to??
Should I use a /output/.. directory in the root area or where else could
be a smart location?
Any ideas on this topic??
thx alot
Johannes
hi jeff,
ok. so I will stay with deploy as well.
Currently I do the following to redeploy:
ant remove
ant deploy
However, there is a small time where users will still get a 404 error (the
small delay where the PUT command is issued by the deploy task). Do you
know a way how to get around this
Hi Kaarle,
Thx for the input.
Unfortunately the development system is Windows and production system is
Unix, so absolute paths will never be the same.
Do you have any idea for how to manage properties files which will be
different for windows than unix?
Should I create a separate web_local and
Hi Jacob,
Thank you for your detailed description.
I'm now using the ant deploy/ant undeploy task successfully and it works
as expected.
I replaced all file-system access with .getClass().getResourceAsStream()
and it works smoothly now.
Also, the ant install command works correctly with the
Hi Jacob,
I think the decision about where the locally stored data should go should
be done at build time.
I'd suggest to use two directories within the ant tree structure:
/web/// stores the static data independent of location
/web-production/ // stores the config data
Hi Jacob,
It seems as if I was wrong with ant install test.
I now undeployed and installed, but the Context information got lost.
Where do I have to put the context.xml in the /build/ directory?
Would /build/myapp.xml ok? Would the install task accept any *.xml in
/build/ as context
p.s. if I do
ant undeploy
ant install - context info gets lost
ant remove
ant deploy - context info is here again!
== so with deploy the context is ok, with install not.
*) I put /build/context.xml and /build/myapp.xml into the build-directory,
but it still doesn't get the context inited.
*)
Hi there,
1.) My server.xml looks a bit unstructured after doing an ant deploy with
the manager app.
== Is it possible to tell the ant deploy task not to change server.xml
itself, but only the /webapps/myapp.xml file belonging to the context
(myapp)?
2.) Is it possible to turn the automatic
Hi there,
Is it somehow possible to look up all JNDI configuration values available
in a servlet/context?
This would be quite fine for debugging purposes, and it seems there is no
function available for this, only for looking up a specific value.
thx
Johannes
hi there,
I noticed an interesting difference between using ant jspc and having the
jsp-file compiled by jasper during runtime.
*) during runtime the file is processed ok
*) using jspc it is encoded in UTF-8, which means that the german umlaute
(ä,ö,ü) are displayed wrong, because the browser
hi there,
Is it possible to have a virtual context, which just points to another
context?
e.g.
myapp = current version, should point to myapp-1.0
myapp-1.0
myapp-1.1
Is it possible to change the context myapp is pointing to during
runtime?
This would make switching between releases much easier
Hi Jerome,
I thought about the jdbc and env-entity entries in server.xml and web.xml.
I think it could be quite handy to have a servlet which lists all
resources available (without having to know the name of each JNDI
resource).
Of course digging in LDAP directories would make no sense, but I
Hi there,
Is there any reference available with samples what can be stored in
web.xml and how to access the property?
In the examples context I found the following entries in web.xml:
env-entry
env-entry-namename3/env-entry-name
env-entry-value1/env-entry-value
Hi there,
Since I got no replies to any of my inquiries regarding the use of
context-specific information in server.xml, it seems as if nobody else
uses this configuration property?
What is the recommended place to put context-specific parameters into?
e.g.
Context crossContext=true debug=0
Hi there,
Here's what I found so far:
1.) I found that the more modern way of accessing scalar environment
attributes seems to be JNDI.
2.) JNDI environment entries can be stored in web.xml
3.)
web.xml file:
env-entry
env-entry-nametestvaluewebxml/env-entry-name
Hi Andoni,
I've got to manage tomcat in production with 99% availabilty, so I cannot
afford a stop/start of Tomcat just to perform a minor update or bugfix. I
want Tomcat in general run continuously.
So I have to avoid server.xml and its neighbourhood (/webapps/*.xml) where
possible to
Hi Phil,
if you make changes to web.xml env-entries and stop/start the application
using the manager app, do your changes show up? My changes didn't show up,
only after a complete restart of the Tomcat Container.
thx
Johannes
Rhodes, Phil [EMAIL PROTECTED]
28.03.2003 15:26
Please respond
hi there,
in the Manager App howto, paragraph on Reload an existing Application
the following is quoted:
NOTE: The /WEB-INF/web.xml web application configuration file is not
reread on a reload. If you have made changes to your web.xml file you must
stop then start the web application.
hi there,
In my /webapps/myapp.xml I'm using a ResourceLink:
ResourceLink name=jdbc/mydb global=MyDatabase/
I'm using the manager app via ant to test my application.
After calling
ant remove
ant install
it tells me the context has been installed OK.
However, it seems as if the
hi there,
here are my findings after some experimentation with the ant deploy task
of the manager app.
*) a complete application can be easily built into a WAR file using ant
*) this WAR file can be easily deployed using ant deploy task
*) once deployed onto the server, the application is
additionaly, an application deployed using the manager app currently
returns null if you use servletcontext.getRealPath();
so it's context seems to be quite obfuscated...
Does anybody else have the same phenomenon?
thx
Johannes
- Forwarded by Johannes Fiala/Johannes Fiala on 28.03.2003 19
hi there,
is it possible to reload context-specific Initialization parameters stored
in server.xml on the fly?
if I deploy a new webapp to Tomcat, I always have the problem, that the
Context InitParameters are not available - only after a restart of Tomcat,
the application runs as expected.
Hi there,
I've split the server.xml file as follows:
/conf/server.xml = contains the primary
configuration
/webapps/contextname.xml = contains the context specific configuration
However, when I try to reload an app with the manager app it seems as if
the information
hi all,
I've now found the solutions using some threads in this forum, but want to
share the complete solution here:
*) jspc-task: all *.jsp files in /jsp will be compiled into the /src
directory
*) merge-descriptors-task: /jsp/web-template.xml will be used for merging
the temporary webinc.xml
hi there,
I've used a taglib from the jstl/core-package and would like to compile
it.
If I try so using ant and a jspc-task, I get the following error:
2003-03-23 05:54:11 - ERROR-the file '\nodigsig.jsp' generated the
following gen
eral exception: org.apache.jasper.JasperException: This
/forms/build.xml:296: org.apache.jasper.JasperException:
This ab
solute uri (http://java.sun.com/jstl/core) cannot be resolved in either
web.xml
or the jar files deployed with this application
- Forwarded by Johannes Fiala/Johannes Fiala on 23.03.2003 18:11 -
Johannes Fiala/Johannes Fiala
on a
webapp reload and there is no way to reload them(except a
stop/start of
tomcat). But jars/classes in WEB-INF/ can be reloaded.
If you have jars in shared/lib that need reloaded when an webapp is
reloaded - you might need to rethink the design of those shared libs.
-Tim
Johannes Fiala
Hi there,
We have a multiple server and multiple release system using Tomcat 4.1.18.
Given the issues we have to address we want to ease updating from version
to the other without facing big risks or interoperability issues. Servers
acting as clients calling soap requests etc. should be able to
Hi there,
I read the Jasper howto
(http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jasper-howto.html), but I
didn't get the build.xml file to work.
here's the commandline I typed in:
F:\srcant -Dtomcat.home=f:/tomcat-4.1.18
-Dwebapp.path=f:/tomcat-4.1.18/webapps/myapp
I get the following
Hi there,
I've just built an ant task to allow for compilation of Jsps (jspc)
*) the compiled jsps are put into /web/WEB-INF/src/*.java
*) a generated WEB-INF directory is created at
/web/WEB-INF/generated_web.xml
However, I'd like to accomplish the following:
*) automatically merge the
Hi there,
I know it is possible to reload a web-application using the manager app
(especially the JAR-files in WEB-INF/lib).
Is it possible to also include the shared/lib directory?
We have some helper JARs, which are used by four web contexts, so I'd
prefer to put them into /shared/lib.
:
was Johannes Fiala/Johannes Fiala
received
Hi there,
Has anybody done a hot redeploy of a web application context using Tomcat?
What I've got to work so far:
*) simply overwrite JARs in the /webapps/myapp/WEB-INF/lib directory and
reloading the application context runs ok
*) however, if you really want to completeley redeploy a web
is not set up to be listening on port
80...
Rick Bullotta
CTO
Lighthammer Software (http://www.lighthammer.com)
-Original Message-
From: Johannes Fiala [mailto:[EMAIL PROTECTED]
Sent: Monday, March 10, 2003 2:24 PM
To: Tomcat Users List
Cc: [EMAIL PROTECTED]
Subject: RE: Tomcat 4.1.18
Hi Rick,
My last email contained a wrong diagnosis of the problem.
redirection to lb:lb is fine, because it is defined as a load balancer in
my workers2.properties.
However, after entering http://localhost/examples I simply get a Server
not found exception using MS IE 6 (indicating there was
Hi to all!
I finally have found the solution:
2.0.1 and 2.0.2 is now working - it seems my try to use a different name
for the redirector dll other than isapi_redirector2.dll has caused the
trouble. I thought I could use isapi_redirector2_201.dll and enter it in
the extensionUri and use it as
Hi Rick,
I tried both fixes, but they failed. I also tried different releases
(2.0.1, 2.0.2), but none worked.
It also doesn't log properly, just fails when I look into the event viewer
Event Type: Error
Event Source: W3SVC
Event Category: None
Event ID: 115
Date:
Hi all,
Thx Mark + Rick for your support.
I tried to use your recommended settings
and succeeded so far, as the green arrow is now showing after I restart
IIS.
However, I could not completely decipher
the following settings (in Mark's jk2.properties):
hi there,
here are the properties files I currently use (a merge of Mark's + Rick's
configuration files):
=
jk2.properties
=
## THIS FILE MAY BE OVERRIDEN AT RUNTIME. MAKE SURE TOMCAT IS STOPED
## WHEN YOU EDIT THE FILE.
## COMMENTS WILL BE
it to work, having
puzzled over 2.0.2 for a long time.
My 2p (UK c version of 2 cents)
Christopehr
-Original Message-
From: Johannes Fiala [mailto:[EMAIL PROTECTED]
Sent: 28 February 2003 08:08
To: Tomcat Users List
Subject: Re: Tomcat 4.1.18 - IIS 5.0 plugin
Dear Ben
.
4.1.18 is compiled to use jk2, not jk.
Good luck,
Ben
--- Johannes Fiala [EMAIL PROTECTED] wrote:
hi there,
I just tried to get the IIS JK2 running using
Tomcat 4.1.18 with JK isapi 2.0.2 and IIS 5.0 (Win
2000 Professional)
I added the registry entries correctly (no error in
event
work.
Does anybody know why jk 2.0.2 doesn't work? Or is the old version of jk
used with the 4.0.1 docs (
http://www.vacodi.com/howto/tomcat/iisnt/index.html) just fine?
thx alot
Johannes Fiala
Konrad Rusz [EMAIL PROTECTED]
26.02.2003 11:19
Please respond to
Tomcat Users List [EMAIL
isapi_redirect.dll correctly.
However, after I stop and start IIS 5.0 the ISAPI Filter shows the red
arrow down.
The log file I specified in the registry entry log_file is simplest, but
there is no log file showing up (c:\isapi.log).
Any ideas on where I have to look at for errors?
thx alot
Johannes Fiala
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