Hello All,
I have a setup with two tomcat instances(AB). I have configured
an apache web server 2.2 for load balancing and fail over. Setup looks fine
as per the configurations suggested. Let tomcat A be handling some request
at sometime. When tomcat instance(A) goes down, the session
Hi,
We run a website from a ROOT.war file. It also requires some static resources
which are in another webapplication (themes) and user uploaded content which
is not in source control.
Currently we use apache httpd to serve these 2 directories. The user content is
mounted from a fileserver, the
Hi All,
I've come across some interesting scenarios with a clustered Tomcat6
environment and I'm wondering what the most common (or best) approach to
configuration would be.
Basically, in a 2 node cluster, with a front-end Apache Web Server using
mod_jk balancer (on availability, with
Robbert-Jan Roos wrote:
Any ideas on how to go with this?
How adventurous are you feeling?
Tomcat 7 (not yet released - you'd need to build it from source) has the
concept of alias resources that can be defined at the Context level.
From the docs:
attribute name=alises required=false
pThis
Hi Darren,
For our setup tomcat 6 is able to handle failover to healthy node
with proper session replication. I assume you have loaded load balancer
module, updated worker.properties, made cluster changes to server.xml of
tomcat 6. My problem is next step of yours.
Hello all,
As per the suggestion from tomcat forum users,I went ahead and installed
tomcat4.1.40
Then i copied the original webapps file from the back up tomcat (old version).
I tried to start the server. It shows this error
Sep 7, 2009 10:13:11 PM org.apache.coyote.http11.Http11BaseProtocol
sunil chandran wrote:
Hello all,
As per the suggestion from tomcat forum users,I went ahead and installed
tomcat4.1.40
Then i copied the original webapps file from the back up tomcat (old version).
I tried to start the server. It shows this error
Sep 7, 2009 10:13:11 PM
Hello Rainer,
about the percentages ... 30% of the total requests are handled by the first
tomcat server and so on ...
I don't know why the 4th server is under loaded whereas the four servers are
configured the same way
about interpreting jkstatus ...
among many others infrmations, this page
The clustering and session failover appears to work OK.
It's just that when one node is failing to respond in a timely fashion
to requests, the balancer does not appear to redirect some (or in some
cases all) requests to the good node.
As the balancer is configured on 'availability', what does
Rainer,
i've forgotten in my last message;
Does these workers options are valid with mod_jk2 (mod_jk2-2.0.43.dll) ?
(http://tomcat.apache.org/connectors-doc/reference/workers.html)
Do you think that the following message are relative to timeouts issues ?
Error connecting to tomcat (not
Hello,
i would like to have a circular catalina error file
is it possible ?
Thank you
jlm
From: mateo-jl [mailto:mateo...@orange.fr]
Subject: Re: jkstatus - Error connecting to tomcat -
ajp_process_callback write failed
Does these workers options are valid with mod_jk2 (mod_jk2-2.0.43.dll)
Nothing is valid with mod_jk2 - it has been deprecated and completely
unsupported for
On 08.09.2009 14:40, mateo-jl wrote:
Does these workers options are valid with mod_jk2 (mod_jk2-2.0.43.dll) ?
(http://tomcat.apache.org/connectors-doc/reference/workers.html)
No, mod_jk2 is deprecated since many years. mod_jk is well maintained
and the preferred way to go.
Do you think that
Hello
I am looking for some Tomcat load balancing/cluster architecture that I can use
in my project. We have about 25 web apps. An arch diagram would be great.
Any documentation/pointers would be helpful.
Thanks
-P
_
Get back
I have inherited a Tomcat 5.5 installation running on Windows XP. There are
processes on this box which do server-to-server connections with a third
party via HTTPS over SSL. We have installed the third party's SSL
certificate on our server, and they have done likewise with ours. We use
their
http://www.tutorialspoint.com/white-papers/load-balancing-and-scalability-via-tomcat-clusters.htm
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Rainer,
I've disabled mod_status in the httpd.conf and now the error no longer
appears in mod_jk.log.
I try http://localhost/sample/ on the server, as you request, and I am
back to file not found.
I can reach the server from outside - the default web page shows up
okay and references
Hello
I have a website which during peak time (peak lasts around ~4 hours with
14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests.
My setup is:
- SUSE Linux Enterprise Server 10 (x86_64) with 8 cpus, 16GB ram
- 1 instance of apache 2.2.10 with mpm prefork
-
Hello,
I'm trying to figure out when to make changes to the tomcatThreadPool, or
when to create a new one.
I'm creating two services in my server.xml, one for each app. Since I want
them on separate ports. I have not set a tomcatThreadPool for each service
but I'm wondering if I need to and what
John Cherouvim wrote:
Hello
I have a website which during peak time (peak lasts around ~4 hours with
14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests.
My guess is that all of your Tomcat AJP threads are tied up with idle
httpd threads.
Try the following in your
On 08.09.2009 17:49, Mark Thomas wrote:
John Cherouvim wrote:
Hello
I have a website which during peak time (peak lasts around ~4 hours with
14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests.
My guess is that all of your Tomcat AJP threads are tied up with idle
Thanks for your reply. I'll try DisableReuse on the next peak, although
I read in
http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html that:
For this you set JkOptions +DisableReuse in your Apache httpd
configuration. This will have a huge negative performance impact!
Is there
we are using webseal,apache 2.0, mod_jk 1.2.18 and jboss 4.2.3 application
server. we are facing an issue with a single application out of 36
applications configured in apache workers.properties file. we are receiving
500 internal error in webseal logs for a duration of 5 to 10 mins in which
the
John Cherouvim wrote:
Thanks for your reply. I'll try DisableReuse on the next peak, although
I read in
http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html that:
For this you set JkOptions +DisableReuse in your Apache httpd
configuration. This will have a huge negative
On 08.09.2009 17:48, sandeepkumarnimma wrote:
we are using webseal,apache 2.0, mod_jk 1.2.18 and jboss 4.2.3 application
server. we are facing an issue with a single application out of 36
applications configured in apache workers.properties file. we are receiving
500 internal error in
From: tjones1105 [mailto:tjo...@acworld.com]
Subject: tomcatThreadPool - when to make changes
I'm creating two services in my server.xml, one for each app. Since I
want them on separate ports.
Then you already have a thread pool for each Connector.
I have not set a tomcatThreadPool for
Hi everyone,
I've been having a frustrating problem for almost a week now and I couldn't
find an answer so far, just open questions on most of the forums - and i've
searched a lot.
I am trying to embed a simple flash file .swf within a .jsp but when running it
on the server (tomcat 6.0.20
From: mateo-jl [mailto:mateo...@orange.fr]
Subject: catalina error file
i would like to have a circular catalina error file
is it possible ?
Maybe.
http://www.catb.org/~esr/faqs/smart-questions.html
http://wiki.apache.org/tomcat/FAQ/Logging
Have you used a plugin like Firebug for Firefox to verify the url of the
.swf file as requested by the browser? What url does the browser try to
use to get the .swf file and what is the status code on the response
(200, 404, 500, etc., )?
--David
Adrian Matei wrote:
Hi everyone,
I've
Rainer Jung wrote:
On 08.09.2009 17:49, Mark Thomas wrote:
John Cherouvim wrote:
Hello
I have a website which during peak time (peak lasts around ~4 hours with
14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests.
My guess is that all of your Tomcat AJP threads are tied
John Cherouvim wrote:
...
Is there a possibility that there is a problem with the fact that I use:
IfModule mpm_prefork_module
...
ServerLimit1024
MaxClients 1024
and default Connector settings?
Connector port=8010 protocol=AJP/1.3 redirectPort=8443
address=127.0.0.1 /
Hi David,
Thank you very much for your useful advice. Indeed with Firebug I've realized
that the files .swf and .js were were being searched in the root of the
application and not where I hold my jsp. Now they are loaded.
Thanks again,
Adrian
From: David
mateo-jl wrote:
Hello,
i would like to have a circular catalina error file
is it possible ?
Mmmm. The concept of a circular file sounds interesting. Maybe you
want to explain a bit what you mean ? there may be a great technical
breakthrough lurking there.
André Warnier wrote:
mateo-jl wrote:
Hello,
i would like to have a circular catalina error file
is it possible ?
Mmmm. The concept of a circular file sounds interesting. Maybe you
want to explain a bit what you mean ? there may be a great technical
breakthrough lurking there.
I don't
Thanks Filip -
Filip Hanik - Dev Lists devli...@hanik.com wrote in message
news:4a849eab.4070...@hanik.com...
That being said, I was leaning towards using the NIO connector for my
installation. However, I was pretty surprised and shocked when reading
Tomcat - The Definitive Guide 2nd
On Tue, Sep 8, 2009 at 12:07 PM, André Warniera...@ice-sa.com wrote:
Mmmm. The concept of a circular file sounds interesting.
In classic American office parlance (yeah, showing my age here),
the circular file (or round file) was a euphemism for trash can :-)
--
Hassan Schroeder
Good to hear. One of the more common/recommended things to do in
webapps is to generate server relative paths to resources so context and
server names can change dynamically. One way to do this with EL
expressions in jsps is:
script type=text/javascript
David Smith wrote:
..
:-D The circular file still is the trash can. In that case, /dev/null
should work. :-)
Yeah but you want a buffer before the /dev/null, to give one a chance to
peek at the contents.
I like Chuck's proposal for the name.
I mean, under Unix/Linux we already have stuff
From: tjones1105 [mailto:tjo...@acworld.com]
Subject: RE: tomcatThreadPool - when to make changes
I'm sorry, your right. I mis-phrased my question. I really meant the
Executor should I create a defined executor for each service?
An Executor can only be nested inside a Service, and if
I'm sorry, your right. I mis-phrased my question. I really meant the
Executor should I create a defined executor for each service?
Thanks,
tom
Caldarale, Charles R wrote:
From: tjones1105 [mailto:tjo...@acworld.com]
Subject: tomcatThreadPool - when to make changes
I'm creating two
From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com]
Subject: Re: catalina error file
Basically a fixed-size serialized FIFO, right?
Yes, but the complication occurs when the records are of unbounded variable
size.
- Chuck
THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR
On Tue, Sep 8, 2009 at 12:45 PM, André Warniera...@ice-sa.com wrote:
truncate, etc.. It should not be that difficult to implement a type of file
that never exceeds a given size, and be done with all these
localhost.mmdd.log files and logrotate and rotatelogs thingies.
Basically a
Hassan Schroeder wrote:
On Tue, Sep 8, 2009 at 12:07 PM, André Warniera...@ice-sa.com wrote:
Mmmm. The concept of a circular file sounds interesting.
In classic American office parlance (yeah, showing my age here),
the circular file (or round file) was a euphemism for trash can :-)
Hi think there's a typo at
http://tomcat.apache.org/tomcat-6.0-doc/virtual-hosting-howto.html .
If you search for ROOR you will find:
Note that the default or ROOT context for ren would be deployed as
$CATALINA_HOME/renapps/ROOT.war (WAR) or $CATALINA_HOME/renapps/ROOR
(directory).
cheers,
-
David Smith wrote:
...
Pure speculation on my part, but maybe the OP is looking for log rotation.
Nah, much too simple. And so are syslog and other Windows Event logs.
Neither did the OP tell us on which platform this would be, nor really
even if it is related to Tomcat (though I admit that
From: André Warnier [mailto:a...@ice-sa.com]
Subject: Re: catalina error file
Mmmm. The concept of a circular file sounds interesting. Maybe you
want to explain a bit what you mean ? there may be a great technical
breakthrough lurking there.
Nahhh, been there, done that - got one in the
Caldarale, Charles R wrote:
From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com]
Subject: Re: catalina error file
Basically a fixed-size serialized FIFO, right?
Yes, but the complication occurs when the records are of unbounded variable
size.
But we are talking about logfiles (e.g.),
On 08/09/2009 20:37, André Warnier wrote:
David Smith wrote:
...
Pure speculation on my part, but maybe the OP is looking for log
rotation.
Nah, much too simple. And so are syslog and other Windows Event logs.
Neither did the OP tell us on which platform this would be, nor really
even if it
what do your logs tell you?
Filip
On 09/08/2009 02:33 AM, Sumedh Sakdeo wrote:
Hello All,
I have a setup with two tomcat instances(AB). I have configured
an apache web server 2.2 for load balancing and fail over. Setup looks fine
as per the configurations suggested. Let tomcat A be
I am running a load test with 2 web (apache) and 2 appservers (tomcat). I am
noticing that after 250 users, I start seeing very high CPU usage and very
high load. Below is the o/p from top command. I also saw this message in
catalina.out: SEVERE: All threads (250) are currently busy, waiting.
Hi,
In our production envt,we are making use of a configuration of
Apache(2.2.10-1)+Mod_jk(1.2.27)+JBOSS(4.0.5)+ATG 2007.1.
We are facing a problem where multiple content is being displayed to the
customer.It was observed that the pages were being periodically rendered
or rendered multiple
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