Hi Ankush,
As far as I know that scripts is not really maintained any more and need
a fair amount of tweaking. I might be wrong though.
Regards
-Original Message-
From: ankush grover [mailto:[EMAIL PROTECTED]
Sent: 23 September 2008 12:16
To: users@tomcat.apache.org
Subject:
Hi
I am trying to understand the behavior of our application stack during
an apache shutdown. This question might not a 100% to this list but is a
good place to start.
I am trying to understand what the behaviour would be when I shutdown an
apache that is connected via modjk to a cluster of
Would the same hold true for requests that is currently being
processed by the tomcat. Would apache wait for the tomcat
threads send
via modjk to complete before terminating them?
Nope. mod_jk has no clue about Tomcat's threads.
Httpd will unload (any) mod_jk module when the
-Original Message-
From: Rainer Jung [mailto:[EMAIL PROTECTED]
Sent: 09 December 2008 12:32
To: Tomcat Users List
Subject: Re: Can not fail over a web service call using mod_jk
Zeke schrieb:
Thank you very much, Rainer!
Yes. My node accept the request first, then it will return
-Original Message-
From: Rainer Jung [mailto:[EMAIL PROTECTED]
Sent: 09 December 2008 13:45
To: Tomcat Users List
Subject: Re: Can not fail over a web service call using mod_jk
[EMAIL PROTECTED] schrieb:
From a design point of view do you feel that this is beyond the
scope
of
Hi Dean,
Still no luck, the attachement I am seeing contains the following:
-
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Hi Iain,
From a previous question I asked on the list:
If you use auto-deploy and you have a WAR file or directory in the
webapps directory, then any path attribute you have in your
Context element will be ignored (or, worse, confused and used ion some
weird way). Perhaps this is a problem with
Hi
Hopefully a simple answer, the documentation says
recovery_options is a bitmask but what I am unsure of is do I set the
value in binary or do I use integer values?
1: don't recover if Tomcat failed after getting the request
2: don't recover if Tomcat failed after sending the headers to
Hi
Another easy question to answer, hopefully...
I just spend a lot of time going through this page:
http://tomcat.apache.org/connectors-doc/reference/workers.html
to decide which parameters we need/want to implement.
However I am a bit confused between the
/etc/httpd/conf/workers.properties
Hi
I'm kind of between a rock and a hard place.
We have a problem in our production system that occurs quite regularly.
Apache's connections all get into a Sending Reply ( W ) state and which
makes the application unresponsive.
We have an apache 2.0.52 fronting 12 tomcat 5.5 all on CentOS 4.5
Hi
I forgot to add, that our solution at the moment is to restart apache
which 9 out of 10 times solves the problems. We see connections reach
almost 250 (248,249) per tomcat server on the apache box. After restart
this drops down
We also only see the problem when we are experiencing heavy load
Charles, when I say apache I mean httpd service.
There is 3 different servers mentioned.
* The httpd server that fronts the tomcat servers
* The tomcat servers that serves the application
* The httpd server, scaled down on the same physical machine as the
tomcat server which we use for basic
Hi
This part is still sligtly confusing to me:
We have 575 potential connections that we can except on the httpd
server, according to my understanding mod_jk will load balance these
connections to the tomcat servers. Thus typically 48 connections per
tomcat. This does seem obviously wrong ...
Thanks for your patience, things are starting to make more sense now.
Tomcat associates one thread with each incoming connection
(at least the default connector) independant of it's
idleness, i.e. even if there is no request coming in. The
connectionTimeout parameter in the connector
Hi
I'm going to be a real pain, but it make no sense now...
The email has been a team effort in our offices. We have included some
diagrams to help illustrate our understanding or lack off.
Using a simple example:
1/ Assume I have one httpd server (prefork) that can spawn a maximum of
200
Hi
This webpage should answer most of your questions,
http://tomcat.apache.org/whichversion.html
Regards
-Original Message-
From: MOHD SUFIAN BIN ZAKARIAH ZAKARIAH
[mailto:[EMAIL PROTECTED]
Sent: 03 September 2007 10:09
To: users@tomcat.apache.org
Subject: Differentiate Tomcat
Hi
I am going through all of the potential settings I can set for mod_jk
and am not sure how the route property in mod_jk might be used.
I understand that this help to differentiate different servers in a load
balanced cluster to prevent sessions getting mixed up and to do session
stickyness.
Hi
Does anyone know if the script tomcat_trend.pl requires a specific
JkRequestLogFormat string.
Doing a search through the list archives on my local machine I found the
following two settings being used:
JkRequestLogFormat %b %w %V %T %r
JkRequestLogFormat %w %V %T
But I am not sure what this
Thanks,
So do you assign a different jvmroute to each webapp?
That would potentially be a better way to run multiple versions of the
same app rather than running different Tomcats. That would be a nice way
to switch quickly between different versions. Currently we have quite a
painfull method for
]
Sent: 11 September 2007 15:58
To: users@tomcat.apache.org
Subject: Re: Logformat for mod_jk logs
hi
I have not used it in long while but i think it required:
JkRequestLogFormat %w %V %U %s %T %B %H %m
Rgds - Fred
Gerhardus.Geldenhuis wrote:
Hi
Does anyone know
Hi Andrew,
I would suggest increasing log level for Tomcat, mod_jk and apache. Have
a look at catalina.out to see if it logged why your application crashed.
It would also help if you could define crash a bit more clearly, state
the exact behaviour. If the tomcat/java have not completely died you
Hi
Probably not your problem but worth mentioning.
If you options like:
JAVA_OPTS=$JAVA_OPTS -Dcom.sun.management.jmxremote.port=5001
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=false
that is CATALINA specific you should change it to
Hi
Have a look at the Redhat/Centos startup scripts to see how they do
that.
If you are running a other linux os then use ps and look for java
processes. Normally the java process will have a catalina param
somewhere so that is usefull to grep for.
Regards
-Original Message-
From: raj
Hi
Me being the one who made the ridiculous suggestion of using ps, am now
enlightened and will be using jps -mlv and spreading the word...
That being said is there any opinions about the soundness of using the
Redhat/Centos startup/shutdown script for Tomcat?
Regards
-Original
Thanks for the reply,
Out of interest the man page for jps states:
NOTE: This utility is unsupported and may not be available in future
versions of the JDK. It is not
currently available on Windows 98 and Windows ME platforms.
This might just be a entry that has not been removed... and the
Hi
Just wondering if there is any standard or recommendation for the
formatting of server.xml config file for tomcat.
Configuring properties for mysql jdbc driver is a good case in point:
Resource
auth=Container
description=MySQL Datasource
Hi
We have upgraded our modjk from .26 to .28
using mod_jk-1.2.28-httpd-2.2.X.so obtained from
http://../tomcat-connectors/jk/binaries/linux/jk-1.2.28/x86_64/
We are running
Server version: Apache/2.2.3
Server built: Nov 12 2008 10:40:14
CentOS release 5.2 (Final)
After upgrading we are
-Original Message-
From: André Warnier [mailto:a...@ice-sa.com]
Sent: 11 December 2009 17:43
To: Tomcat Users List
Subject: Re: Strange characters seen in RR and Cd columns on jkserver-status
page after upgrading modjk to .28
gerhardus.geldenh...@gta-travel.com wrote:
Hi
We have
-Original Message-
From: Rainer Jung [mailto:rainer.j...@kippdata.de]
Sent: 12 December 2009 15:51
To: Tomcat Users List
Cc: Gerhardus Geldenhuis (GTA-LON)
Subject: Re: Strange characters seen in RR and Cd columns on jkserver-
status page after upgrading modjk to .28
On
Hi Ghassan,
It looks like you might be using a default/old version of modjk. I would
recommend as a start to either download the latest binary release or
compile a custom version for your distribution. It is really
straightforward to do the compile and everything you need to know is in
the
Hi
We have an apache server that load balances two types of applications
across different stacks of tomcats.
We have a tomcat stack for requests that processes very quickly, lets
call this stack A and a tomcat stack for slower running
request(different type of application) named stack B.
We
Hi
We are interested to know what the exact behaviour of modjk is with
regards to current running requests when you disable a worker in the web
interface. Does it drop all requests currently being processed by that
worker or would it wait for requests to be finalized? The worker is part
of a load
Hi Andrew,
It will mark a worker as down and only send requests to working
workers. There is a separate thread that checks the availability of all
workers in an configurable time period which will mark the worker as
available/functioning again when it becomes available, where after it
will receive
Hi
I was just wondering if anyone can recommend a open source that one can
use to build control panels based on jmx properties published by the
jvm or your own application.
We have monitoring software that can alert us when some jmx values
exceeds a threshold but I would like to see a tool where
-Original Message-
From: André Warnier [mailto:a...@ice-sa.com]
Sent: 03 February 2009 19:35
To: Tomcat Users List
Subject: Re: AJP vs HTTP connectors?
Hi.
Maybe slightly off-topic, but having a moment of blues and lack of
inspiration/motivation about working on what I should
1) As far as I know, no, mod_jk does not read workers.properties
dynamically.
2) Yes and no, it will not send a request unless communication has
been
established with the worker, it may happen that the worker fails, or
someone shut it down. Depending on how you configure the workers and
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