Hi Jeevan,
1. Am I missing something? Load balancing?
Lot of ways to do load balancing :
a. U can use balancer apps, it's bundled on tomcat sample
b. U can use apache with mod_jk
So, yes, you browse to some other URL. For example, if U run the balancer
apps from tomcat, U should be redirected
Hey,
you have install my cluster patch for 5.5.9?
http://issues.apache.org/bugzilla/show_bug.cgi?id=34389
I used very heavy the new fastasyncqueue mode without memory problems
Every minute the sessions controlled for timeout. Look with an JMX
Console that the manager active session count is
With the next release I hope we support those handlings context
attribute replication handling.
We start a discussion at this list ( last three days).
Topic:
http://marc.theaimsgroup.com/?t=11141745513r=1w=2
Peter
Joshua Szmajda schrieb:
Hey all,
Is there a way to get the cluster system to
Awesome!
I think though since I need this functionality now, I might go with
JGroups' DistributedHashtable system. It's basically what I need right
out of the box.
Thanks, and good luck! I'll be looking forward to that functionality.
-Josh
Peter Rossbach wrote:
With the next release I hope we
:[EMAIL PROTECTED]
Sent: Wed 3/2/2005 12:17 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
From: Sng Wee Jim [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat clustering and NotSerializableException
Indeed a reference to the HttpServletRequest is held in my Struts
] Sent: Monday,
February 28, 2005 11:13 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
As Matt said its probably your applications objects. When we switched
to
clustering I was surprised at how many of my session objects I needed
to
add serializable
From: Richard Mixon (qwest) [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat clustering and NotSerializableException
CoyoteRequestFacade is the first element in the stack trace -
it is not the session stored object that is causing the
NotSerializableException.
Actually
...
- Jim
-Original Message-
From: Richard Mixon (qwest) [mailto:[EMAIL PROTECTED] Sent: Monday,
February 28, 2005 11:13 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
As Matt said its probably your applications objects. When we switched
to
clustering I
null?
- Jim
-Original Message-
From: Filip Hanik - Dev Lists [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 01, 2005 11:47 PM
To: Tomcat Users List
Subject: Re: Tomcat clustering and NotSerializableException
As Richard says, don't store your request in the session, not a good
idea
-logging logger instances - how to initialize in replicated
session objectsr fo the details of one way to do this.
HTH - Richard
-Original Message-
From: Sng Wee Jim [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 01, 2005 7:47 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering
From: Sng Wee Jim [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat clustering and NotSerializableException
Indeed a reference to the HttpServletRequest is held in my Struts form
(session-scope). The problem went away once I added transient to the
attribute.
How do you handle the situation
I would guess that this means you have an object in your session that does not
implement the serializable interface.
Ta
Matt
-Original Message-
From: Sng Wee Jim [mailto:[EMAIL PROTECTED]
Sent: 28 February 2005 09:21
To: tomcat-user@jakarta.apache.org
Subject: Tomcat clustering and
As Matt said its probably your applications objects. When we switched to
clustering I was surprised at how many of my session objects I needed to
add serializable to. But it was easy work and quickl done.
HTH - Richard
Dale, Matt wrote:
I would guess that this means you have an object in your
Mixon (qwest) [mailto:[EMAIL PROTECTED]
Sent: Monday, February 28, 2005 8:13 AM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
As Matt said its probably your applications objects. When we switched to
clustering I was surprised at how many of my session objects I
-Original Message-
From: Richard Mixon (qwest) [mailto:[EMAIL PROTECTED]
Sent: Monday, February 28, 2005 8:13 AM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
As Matt said its probably your applications objects. When we switched
to clustering I
, 2005 8:55 AM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
Randall,
I know that session replication works in Tomcat 5.5.7 and it may also
works in 5.0.x (no experience). But to get failover restart to work
properly (i.e. restarting a failed node) I had to use Tomcat
15:14
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
But do those session objects replicate to the other tomcat instances???
I have been testing session objects that implement java.io.serializable
and I have not yet been able to see these objects when fail over
-Original Message-
From: Dale, Matt [mailto:[EMAIL PROTECTED]
Sent: Monday, February 28, 2005 11:04 AM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
These objects will replicate to other instances when ALL objects in the
session are serializable. I suspect
, February 28, 2005 11:13 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering and NotSerializableException
As Matt said its probably your applications objects. When we switched to
clustering I was surprised at how many of my session objects I needed to
add serializable to. But it was easy work
From: Sng Wee Jim [mailto:[EMAIL PROTECTED]
Subject: RE: Tomcat clustering and NotSerializableException
But the stacktrace says
java.io.NotSerializableException:
org.apache.coyote.tomcat5.CoyoteRequestFacade
Since CoyoteRequestFacade is a tomcat class, I assume it has
to be fixed
O.k. I just found out that I can force wscompile to add the
implementation of Serializable to all datatypes
(xSerializable=true)... however the part about older apps is still
relevant.
peter maas wrote:
Hi list,
I have been experimenting with the clustering options for a while. The
main issue
Srinivas Rao Ch wrote:
I am getting problems in configuring my tomcat for clustering. Nodes are not
recognizing each other. mcastAddr has the same IP for all the nodes. Can
someone tell what this property is for. My tcpListenAddress is 127.0.0.1 for
all the nodes but port is different. In my
On Mon, 16 Aug 2004, Mitchell Teixeira wrote:
| Thanks for the responses so far on this topic. Seems like I need to
| elaborate a little
|
| We are looking towards Tomcat clustering to solve a problem caused by
| so-called Megaproxy ISPs such as AOL, etc. These ISPs make it look as if
| the
I think you may have 2 problems here, firstly the port has to be the same accross all
the tomcats and secondly (I could be wrong about this one) but I think by specifying
the loopback address as the listen address means that it wont listen on the external
interface, therefore the multicast
)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:234
Can you please tell me where I was wrong.
Regards,
Srinivas
-Original Message-
From: Dale, Matt [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 17, 2004 4:17 PM
To: Tomcat Users List
Subject: RE: Tomcat
guess at the problem.
Ta
Matt
-Original Message-
From: Srinivas Rao Ch [mailto:[EMAIL PROTECTED]
Sent: 17 August 2004 12:05
To: Tomcat Users List
Subject: RE: Tomcat clustering
Matt,
Thanks for the reply. Do you mean mcastAddr the loopback address? If yes,
I am not using the root machine
, 2004 4:56 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering
I didnt mean mcastAddr, I meant tcpListenAddress, you have this set to
127.0.0.1 (Loopback) which is not available for external access so the
mulitcast will never get to it.
I'm not sure what's causing your exception though, you'd
as
127.0.0.1 will not hear the multicast ping.
Ta
Matt
-Original Message-
From: Srinivas Rao Ch [mailto:[EMAIL PROTECTED]
Sent: 17 August 2004 12:25
To: Tomcat Users List
Subject: RE: Tomcat clustering
Hi Matt,
Here's my cluster part of server.xml. And, srao is my machine name.
Cluster
[mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 17, 2004 5:19 PM
To: Tomcat Users List
Subject: RE: Tomcat clustering
Your first problem is the mCastAddr, firstly it should be an IP address as
no dns lookups are done, secondly it shouldnt be a machine name, it should
be a valid multicast address
On Tue, 2004-08-17 at 02:59, Endre Stlsvik wrote:
No, I can't seem to imagine! ;) You should let LocalDirector do the
SLL'ing - and then you can use the SSL Session as stickyness too.
One problem with that is you can still have the session hop servers
since the Local Director can't match up
On Tue, Aug 17, 2004 at 05:33:00AM -0700, Cott Lang wrote:
: One problem with that is you can still have the session hop servers
: since the Local Director can't match up cookie based mappings to SSL
: session mappings, since it can't read the cookies from SSL connections,
: and can't read
On Tue, 17 Aug 2004, QM wrote:
| On Tue, Aug 17, 2004 at 05:33:00AM -0700, Cott Lang wrote:
| : One problem with that is you can still have the session hop servers
| : since the Local Director can't match up cookie based mappings to SSL
| : session mappings, since it can't read the cookies from
mcastAddr is a multicast IP address, range from 224.0.0.0 -
google it
Filip
-Original Message-
From: Srinivas Rao Ch [mailto:[EMAIL PROTECTED]
Sent: Tuesday, August 17, 2004 7:01 AM
To: Tomcat Users List
Subject: RE: Tomcat clustering
Can you please tell me what is mCastAddr
On Tue, 2004-08-17 at 06:26, QM wrote:
On Tue, Aug 17, 2004 at 05:33:00AM -0700, Cott Lang wrote:
: One problem with that is you can still have the session hop servers
: since the Local Director can't match up cookie based mappings to SSL
: session mappings, since it can't read the cookies
That's also what I referred to when mentioning SSL Session - see, the
SSL layer in effect creates a session with the client, and one can thus
use this to do sessioning/sticking with - AT LEAST this works when you use
client certificates, but I'm not totally sure how this goes when there is
Hi,
The Balancer webapp is meant to function is a pure-Java, low-tech
clustering approach. It doesn't support some of the features that
advanced clustering configurations do, but it lets you distribute
traffic according to whatever rules or heuristics you want, and easily
define fallbacks for
You can also use any kind of hardware or software load balancer or DNS round robin.
Ta
Matt
-Original Message-
From: Shapira, Yoav [mailto:[EMAIL PROTECTED]
Sent: 16 August 2004 14:12
To: Tomcat Users List
Subject: RE: Tomcat clustering without Apache
Hi,
The Balancer webapp is meant
Thanks for the responses so far on this topic. Seems like I need to
elaborate a little
We are looking towards Tomcat clustering to solve a problem caused by
so-called Megaproxy ISPs such as AOL, etc. These ISPs make it look as if
the same client is coming from multiple IP addresses. This
PROTECTED]
Sent: Monday, August 16, 2004 11:23 AM
To: [EMAIL PROTECTED]
Subject: RE: Tomcat clustering without Apache
Thanks for the responses so far on this topic. Seems like I need to
elaborate a little
We are looking towards Tomcat clustering to solve a problem caused by
so-called Megaproxy ISPs
(lists) [mailto:[EMAIL PROTECTED]
Sent: 16 August 2004 17:31
To: Tomcat Users List
Subject: RE: Tomcat clustering without Apache
session replication is supported in tomcat without apache
in tomcat 5, just uncomment the cluster section in server.xml, also, there
are online docs
http
-
From: keita elhadji [EMAIL PROTECTED]
To: Tomcat Users List
[EMAIL PROTECTED]
Sent: Tuesday, May 11, 2004 3:57 AM
Subject: Re: tomcat clustering
Hi,
Thank you for your answer now it's working in my log
i
have now :
2004-05-11 10:04:21
StandardContext[/jsp-examples
Subject: Re: tomcat clustering
Hi,
Thank you for your answer now it's working in my log i
have now :
2004-05-11 10:04:21
StandardContext[/jsp-examples]ContextListener:
contextInitialized()
2004-05-11 10:04:21
StandardContext[/jsp-examples]SessionListener:
contextInitialized()
2004-05-11 10:04:24
Hi,
Thank you for your answer now it's working in my log i
have now :
2004-05-11 10:04:21
StandardContext[/jsp-examples]ContextListener:
contextInitialized()
2004-05-11 10:04:21
StandardContext[/jsp-examples]SessionListener:
contextInitialized()
2004-05-11 10:04:24
Caused by: java.io.NotSerializableException:
- Original Message -
From: keita elhadji [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, May 10, 2004 4:52 AM
Subject: tomcat clustering
Hi,
i have a problem with mod_jk2 .
I have two PC with tomcat5.019
1st PC name is :
For the basic on loadbalancing and architecture check out this article
from Filip:
http://www.theserverside.com/articles/article.jsp?l=Tomcat
It's nicely done. A little out of date as for the tomcat configuration.
Since tc 5.x has a whole new clustering engine.
But it should be good enough for
Buy the Apache Tomcat Bible by Jon Eaves and published by Wiley.
It has chapters devoted to clustering Tomcat.
I was able to cluster tomcat with in a few hours
Bob W.
-Original Message-
From: Salvador Santander Gutierrez
[mailto:[EMAIL PROTECTED]
Sent: Monday, January 26, 2004 4:49
Howdy,
Note that if you simply wish to divide up traffic among servers, not
cluster in the purest sense of the word that includes session
replication and failover, then you can easily use the balancer webapp
that ships with tomcat 5.
Yoav Shapira
Millennium ChemInformatics
-Original
?
cheers, ADC
-Original Message-
From: Shapira, Yoav [mailto:[EMAIL PROTECTED]
Sent: 26 January 2004 14:07
To: Tomcat Users List
Subject: RE: Tomcat clustering
Howdy,
Note that if you simply wish to divide up traffic among servers, not
cluster in the purest sense of the word
Howdy,
if 1 server is very powerful, then 1 instance of tomcat would not
utilize
the full resources available right?
Not necessarily right: depends on the application. We have apps of
tomcat that efficiently and highly utilize many concurrent threads and
up to 2GB of RAM.
are there any good
AFAIK, only sessions are replicated. Attributes in the Servlet Context are
not replicated.
-Tim
Antony Paul wrote:
Hi,
I asked this question yesterday no one replied.
Suppose Tomcat is running in a cluster with load balancer. If I put a
JavaBean in ServletContext is it possible to access
Thanks
- Original Message -
From: Tim Funk [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Sent: Tuesday, November 04, 2003 5:45 PM
Subject: Re: Tomcat clustering and servletContext.
AFAIK, only sessions are replicated. Attributes in the Servlet Context are
not replicated
Howdy,
And I did reply yesterday saying the same thing...
Yoav Shapira
Millennium ChemInformatics
-Original Message-
From: Antony Paul [mailto:[EMAIL PROTECTED]
Sent: Monday, November 03, 2003 11:23 PM
To: Tomcat Users List
Subject: Tomcat clustering and servletContext.
Hi,
I
Antony,
I asked this question yesterday no one replied.
Suppose Tomcat is running in a cluster with load balancer. If I put a
JavaBean in ServletContext is it possible to access this bean in all
machines ?.
No, the ServletContext does not get propagated to other machines.
Consider using a
I found your reply in the archives.
Antony Paul
- Original Message -
From: Shapira, Yoav [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Sent: Tuesday, November 04, 2003 7:09 PM
Subject: RE: Tomcat clustering and servletContext.
Howdy,
And I did reply yesterday saying
Bern:
We are using clustering on Tomcat 4.
Actually, at the current time, we are working with Filip Hanik
to track down a performance problem with the clustering code.
Let me know what I can do to help you.
Thanks,
Neil
--
Neil Aggarwal, JAMM Consulting, (972)612-6056,
, April 02, 2003 9:37 AM
To: 'Filip Hanik'
Cc: Sam Wilson
Subject: RE: Tomcat clustering
Hi Filip,
Thanks for your prompt reply. Through a combination of looking at
the Tomcat
5.x source code and judicious use of a decompiler we've managed to build
from source a version of your tomcat
really your cookie shouldn't change. ie you should stay
stuck to a given worker.
But it's sounding at least as though we going in the right direction :)
D
Luminous Heart wrote:
Ok. I made the modifications you suggested. As you saw
in my workers file I have 3 tcs; tc13, extra13, and
intra13.
Would you like to post your workers file
D
Luminous Heart wrote:
Greetings,
I have a cluster of 3 tomcats running on linux box. I
have the three tc4.0.4 instances in a loadbalancing
mode. The problem is when one fails none of the others
pick up and my app wont serve any requests untill I
Here is my workers file. Please notice that I mounting
tomcat context as such in my mod_jk.conf file:
JkMount /* loadbalancer
JkMount /servlet/* loadbalancer
loadbalancer is defined in the following workers file.
Thank you in advance.
=== workers.properties =
I think i can see what it is :)
Your workers.list defines for mod_jk what servers to use.
In the case below it will use tc13 until it doesn't work / too overworked.
Change the line so it's
worker.list=loadbalancer
Now your balanced_workers will work as the loadbalancer is in control.
I will try your suggestion and hope it works for me.
Thanks a million for your help.
--- David Cassidy [EMAIL PROTECTED] wrote:
I think i can see what it is :)
Your workers.list defines for mod_jk what servers to
use.
In the case below it will use tc13 until it doesn't
work / too
helps only good if it works ...
let us know if it does !
you might want to see what jsessionid gets set to.
if the loadbalancer is working correctly it'll append the servers name
to the
jsessionid cookie.
If you've got mozilla you can examine the cookies easily
D
Luminous Heart wrote:
I
Ok. I made the modifications you suggested. As you saw
in my workers file I have 3 tcs; tc13, extra13, and
intra13.
I turned cookies on with IE. When I go to
http://mySite.com I see a cookie being set by let us
say tc13. Then I click on the link to my application
on the front page and sometimes I
63 matches
Mail list logo
