You need mod_gzip or mod_deflate(?) if your using apache in front of tomcat
(via jk)
-Tim
Acácio Furtado Costa wrote:
Hi
We're having problems to configure gzip using TC559/Apache Cluster...
We moved the compression=on and others gzip declarations from connector 80 to 8009
in all Tomcat
@jakarta.apache.org
Assunto: Problems with gzip compression with Apache/Tomcat cluster and Firefox
We have recently been experimenting with enabling gzip/deflate compression via
our Apache/Tomcat cluster, but have encountered some problems with the way the
compression works with the Firebox browser
Tomcat 5 does not provide a built-in fail over mechanism to
detect when a cluster member crashes.
Can someone tell me if Tomcat 5.5 provides fail over detection in
tomcat cluster?
Thank you.
Sam
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Hi,
From this article
http://www.onjava.com/pub/a/onjava/2004/03/31/clustering.html?page=2,
it said Tomcat 5 does not provide a built-in fail over mechanism to
detect when a cluster member crashes.
Can someone tell me if Tomcat 5.5 provides fail over detection in
tomcat cluster?
Thank you.
Sam
[Marked off-topic as this now has nothing to do with Tomcat.]
From: Steve Kirk [mailto:[EMAIL PROTECTED]
Can I ask how sure you felt of what you
say here please:
Uhhh... how about 'the little pixies told me, and I believe everything
they say'? :-) It's from a combination of knowing two
Thanks Peter, interesting. Your experience of it sounds similar to other
experiences I've had when changing from one ISP to another (there seems to
be a cutover time of up to 3 days where some 3rd party ISPs clearly still
cached and served the old IP for our domain name). It was because of this
From: Steve Kirk [mailto:[EMAIL PROTECTED]
Thanks Peter, interesting.
Internet issues in the large tend to be - you get emergent behaviour
that is often unexpected :-).
I think these are
referred to as caching servers as opposed to secondary. It's the
secondaries that receive the zone
Yup. So anyone using your ISP's DNS servers will get one of
two IPs for
www.microsoft.com at present, out of the however many they
have. Lumpy
load balancing in action :-).
Yes true, hadn't thought of it like that. Where a site has more Ips for a
host than an ISP has DNS servers, this
on the servers in the
Tomcat cluster so it knows which Tomcat server ip:port to send back. OR does
this whole thing imply that you have an IP for each web server (IIS), and
each web server is tied to each server in the Tomcat cluster via a jk2
redirector?
2)TCP NAT distribution - Does this mean
in this scheme to prevent that.
Also, is there a way to
setup the DNS to Round Robin or check server load on the
servers in the
Tomcat cluster so it knows which Tomcat server ip:port to
send back.
No standard way afaik. Worse, downstream DNS servers may (often do)
cache the returned IPs
are your thoughts?
-Original Message-
From: Peter Crowther [mailto:[EMAIL PROTECTED]
Sent: Wednesday 25 May 2005 17:15
To: Tomcat Users List; [EMAIL PROTECTED]
Subject: RE: DNS Request distribution and TCP NAT
distribution For Tomcat Cluster
From: John MccLain [mailto:[EMAIL
We have recently been experimenting with enabling gzip/deflate compression
via our Apache/Tomcat cluster, but have encountered some problems with the
way the compression works with the Firebox browser.
When Firefox brings up a compressed page for the first time, it looks fine.
If they reload
Am I posting this question to the wrong groups or a little too impatient?
Any feedback is greatly appreciated.
-Original Message-
From: Michael Marrotte [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 12, 2005 10:01 AM
To: tomcat-dev@jakarta.apache.org
Subject: Tomcat Cluster + File
, such that when
the netapp has problems your app stays afloat.
-QM
: -Original Message-
: From: Michael Marrotte [mailto:[EMAIL PROTECTED]
: Sent: Tuesday, April 12, 2005 10:01 AM
: To: tomcat-dev@jakarta.apache.org
: Subject: Tomcat Cluster + File Sharing
:
: My post to the user list
@jakarta.apache.org
: Subject: Tomcat Cluster + File Sharing
:
: My post to the user list didn't get any response. I'm thinking the
: developers might provide a little more feedback. I'm just looking for a
: sanity check. I'd like to cluster multiple Tomcat instances to share the
: same file system (a NetApp
In the midst of architecting a new system and considering clustering Tomcat
servers to share the same files from a NetApp mount point. Specifically,
configuring multiple instances (server.xml) of Tomcat to share the same
/usr/local/tomcat, webapps, etc. Does Catalina support this type (e.g.
instance can see the other instances???
Thanks,
Randall
-Original Message-
From: Randall Svancara [mailto:[EMAIL PROTECTED]
Sent: Wednesday, February 23, 2005 9:44 AM
To: Tomcat Users List
Subject: Tomcat Cluster
I have attempted to configure a tomcat cluster using version 5.5.7
-Original Message-
From: Randall Svancara [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 01, 2005 8:47 AM
To: Tomcat Users List
Subject: RE: Tomcat Cluster
Apparently this was too verbose for anyone to read. I simply just don't
understand why each tomcat instance is failing to recognize any
on the matter would be appreciated.
Randall
-Original Message-
From: Richard Mixon (qwest) [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 01, 2005 9:16 AM
To: Tomcat Users List
Subject: RE: Tomcat Cluster
Randall,
Below is the clustering section of my server.xml running under SuSE
Linux
Svancara [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 01, 2005 12:12 PM
To: Tomcat Users List
Subject: RE: Tomcat Cluster
I used the tools that I downloaded from javagroups as described and I
can send messages back and forth over multicast on 224.0.0.4 on port
45564 just fine. I am using
I have attempted to configure a tomcat cluster using version 5.5.7 of
tomcat.
I have configured a simple tcp cluster in the server.xml. I have two
tomcat instances installed on two different Linux servers
(Fedora core 3, IPTAPLES is turned off, there is not firewall).
I have apache
Filip,
You were right. It's works with the handle. Thanx for all the co-operation.
cheers
Suraj
-Original Message-
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Saturday, March 27, 2004 5:51 AM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster
good stuff, thanks for replying, that helps with the archives
-Original Message-
From: Suraj Prabhu [mailto:[EMAIL PROTECTED]
Sent: Monday, April 05, 2004 1:27 AM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJ B's!
Filip,
You were right
in the connector for
mod_jk,
please go through the last weeks emails and let us know what you find
out.
Filip
-Original Message-
From: Asim Alp [mailto:[EMAIL PROTECTED]
Sent: Saturday, March 27, 2004 7:55 PM
To: Tomcat Users List
Subject: apache + 2 tomcat cluster memory problem
Hello
Hello everyone,
I have 2 Tomcats (both 5.0.19) running on two separate machines. One
machine also has Apache 2.0.49 installed on it for load balancing.
Apache communicates with tomcat1 thru port 11005 and tomcat2 thru
12005. tomcat1 and Apache are on the same machine. Apache is set to
: apache + 2 tomcat cluster memory problem
Hello everyone,
I have 2 Tomcats (both 5.0.19) running on two separate machines. One
machine also has Apache 2.0.49 installed on it for load balancing.
Apache communicates with tomcat1 thru port 11005 and tomcat2 thru
12005. tomcat1 and Apache
in Tomcat Cluster not working with
EJ B's!
Andy,
I agree with your point about a SFSB being an extension of a client. But
then, if I store the 'state' alone in the httpsession and update the state
by using a new SFSB everytime, the whole concept of SFSB's are lost. I would
rather use a stateless
to handle such a scenario or not.
cheers
Suraj
-Original Message-
From: Bodycombe, Andrew [mailto:[EMAIL PROTECTED]
Sent: Monday, March 22, 2004 4:42 PM
To: '[EMAIL PROTECTED]'
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJ B's!
Think of a stateful session bean
for you.
Regards,
Andy
-Original Message-
From: Suraj Prabhu
To: [EMAIL PROTECTED]
Sent: 19/03/2004 07:34
Subject: HttpSession Replication in Tomcat Cluster not working with
EJB's!
Hi everybody,
I am trying to cluster Tomcat Servers ver 5.0.18 (Two servers) and my
application servlets
yes please, that would be helpful, what version of tomcat?
-Original Message-
From: Suraj Prabhu [mailto:[EMAIL PROTECTED]
Sent: Friday, March 19, 2004 11:49 PM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJB's!
Filip,
Would you like me
where is the class chnhr.EmployeeEditorSB stored?
Filip
-Original Message-
From: Suraj Prabhu [mailto:[EMAIL PROTECTED]
Sent: Thursday, March 18, 2004 11:34 PM
To: [EMAIL PROTECTED]
Subject: HttpSession Replication in Tomcat Cluster not working with
EJB's!
Hi everybody,
I am trying
are you sure this class is on all the servers?
Filip
-Original Message-
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Friday, March 19, 2004 10:31 AM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJB's!
where is the class
Filip,
Yes this class is on all the servers. Checked it up, no version clash either.
Cheers.
Suraj
-Original Message-
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Saturday, March 20, 2004 12:10 AM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster
where is the class chnhr.EmployeeEditorSB stored?
-Original Message-
From: Suraj Prabhu [mailto:[EMAIL PROTECTED]
Sent: Friday, March 19, 2004 11:26 PM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJB's!
Filip,
Yes this class is on all
it's in a chnr.jar file inside my TestWeb.war
-Original Message-
From: Filip Hanik (lists) [mailto:[EMAIL PROTECTED]
Sent: Saturday, March 20, 2004 1:10 PM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJB's!
where is the class
Filip,
Would you like me to fwd the war file???
Cheers
Suraj
-Original Message-
From: Suraj Prabhu
Sent: Saturday, March 20, 2004 1:12 PM
To: Tomcat Users List
Subject: RE: HttpSession Replication in Tomcat Cluster not working with
EJB's!
it's in a chnr.jar file inside my TestWeb.war
Hi everybody,
I am trying to cluster Tomcat Servers ver 5.0.18 (Two servers) and my application
servlets are accessing Stateful session beans. Typically, the first invocation of the
servlet gets the Remote of the SFSB and stores it into the session. The other Tomcat's
in the cluster throw up
Hi Guys,
Could anyone recommend a good place to start for setting up a Tomcat cluster on the
same server? I also need a good/free load balancer that can integrate with this
cluster. I understand Tomcat 5 can be clustered with a load balancer but have never
done anything like it and would
PROTECTED]
Sent: Wednesday, October 15, 2003 1:07 AM
To: Tomcat Users List
Subject: Servlet context in tomcat cluster.
Hi,
I need a quick answer. In Tomcat clustered environment(I dont know the
configuration) is it possible to access the same servlet context on
different machines from jsp and servlets
Hi,
I need a quick answer. In Tomcat clustered environment(I dont know the
configuration) is it possible to access the same servlet context on
different machines from jsp and servlets. Is there any special coding
required to do this. I wnat to put an object in the servlet context which is
to be
[mailto:[EMAIL PROTECTED]
Sent: Thursday, September 11, 2003 7:04 PM
To: 'Tomcat Users List'
Subject: RE: Tomcat cluster tuning
Are there any recommendations for what JVM would work best?
We're not doing anything fancy, so presumably any VM that works well
with tomcat would work well for us
We are runing a cluster of 3 apache servers and 2 tomcat servers
connected via AJP w/Oracle on backend.
The cluster has been performing very well but we've had a recent load
spike that's causing the tomcat servers to start swapping pretty
hardcore despite JVM limitations.
What is the -Xmx option
to cure the cause or
find out that you have to live with that memory usage
and spend more memory.
-Original Message-
From: Cristopher Daniluk [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 11, 2003 5:33 PM
To: [EMAIL PROTECTED]
Subject: Tomcat cluster tuning
What is the -Xmx
Message-
From: Ralph Einfeldt [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 11, 2003 12:46 PM
To: Tomcat Users List
Subject: RE: Tomcat cluster tuning
mx is limiting the heap of a java process.
In other words:
It limits the total heap for one tomcat instance.
The total memory can
: File replication (Tomcat cluster ?)
Simon Pabst said:
Or you just set up a script/cronjob to do an rsync or scp/rcp between the
two local directories.
Don't think Tomcat itself has anything which makes that possible (correct
me if i'm wrong), maybe Tomcat 5 will.
This is the method I would
Nicolas LANTERNIER wrote:
For the deployment, there's no problem,
But my application allow users to upload files in Tomcat, so I need a
synchronisation between my 2 tomcat
Then your best bet is either use NFS orother shared filesystem (which
IMO somewhat defeats the purpose of clustering Tomcat
Hi all,
I'm searching for the best way to Integrate tomcat with apache.
is it using mod_jk or mod_webapp, or anyother method.
regards
Dasun
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From: Dasun Buddhika Ratnayake [EMAIL PROTECTED]
I'm searching for the best way to Integrate tomcat with apache.
is it using mod_jk or mod_webapp, or anyother method.
use mod_jk
mod_webapp is deprecated
regards,
Juan
-
To
Use Apache 2 with worker mpm if you want round robin to work with mod_jk1/2
sticky session.
Use mod_jk 1 or 2 as connector.
See
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/jk/aphowto.html
http://www.johnturner.com/howto/apache-tomcat-howto.html
Hello,
I have two Tomcat Servers working in session cluster and I need to replicate
the content of the Webapp directory.
Is it possible ? and how to configure it ?
... Sorry for my poor english
___
Nicou
Nicolas LANTERNIER wrote:
I have two Tomcat Servers working in session cluster and I need to replicate
the content of the Webapp directory.
Is it possible ? and how to configure it ?
This is not something that Tomcat will handle. You will need to setup
your own replication of the document root.
Normally there's no need for replicating your webapp,
just put it somewhere outside the tomcat directories and point the
application contexts in both tomcats to that directory (with absolute
pathnames)
At 17:13 16.07.2003 +0200, you wrote:
Hello,
I have two Tomcat Servers working in session
for High Load environment ?
-Message d'origine-
De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Envoye : mercredi 16 juillet 2003 18:22
A : Tomcat Users List
Objet : Re: File replication (Tomcat cluster ?)
Normally there's no need for replicating your webapp,
just put
Simon Pabst said:
Or you just set up a script/cronjob to do an rsync or scp/rcp between the
two local directories.
Don't think Tomcat itself has anything which makes that possible (correct
me if i'm wrong), maybe Tomcat 5 will.
This is the method I would suggest using. Besides this, you
Hi all,
we need to replicate HTTP session between TOMCAT istance/cluster on Win2000
(and in the next-time on Tru64 5.1B).
We have TOMCAT v.4.0.6 (but we can change it).
We have done some test with procedure suggest on TheServerSide.COM site -
I'd try a more recent version of the session replication stuff, which will
be used in tomcat 5 also (think it uses a similar codebase like that
javagroups stuff):
http://cvs.apache.org/~fhanik/index.html
However there's an obstacle (true for that older version too)
Make sure all your session
I have noticed when using the InMemoryReplicationManager for web
applications on a Tomcat cluster that you will encounter a
ClassNotFoundException when trying to deserialize the session contents of
serialized data objects specific to the web application (i.e. a given web
application may have
on
Tomcat cluster
I have noticed when using the InMemoryReplicationManager for web
applications on a Tomcat cluster that you will encounter a
ClassNotFoundException when trying to deserialize the session contents of
serialized data objects specific to the web application (i.e. a given web
application
on
Tomcat cluster
I haven't seen this problem,
where is your Employee class file sitting?
Filip
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Friday, June 13, 2003 8:24 AM
To: [EMAIL PROTECTED]
Subject: Deserializing data objects using
9:10 AM
To: [EMAIL PROTECTED]
Subject: RE: Deserializing data objects using InMemoryReplicationManager
on Tomcat cluster
WEB-INF/classes/some.package.Employee
If this Employee object is put in the session and then replicated
across the
nodes for the given web application, the other nodes
To: Tomcat Users List
Subject: RE: Deserializing data objects using InMemoryReplicationManager on
Tomcat cluster
it should be in
WEB-INF/classes/some/package/Employee.class is that what you meant?
never had this problem myself, what version of Tomcat? also, can you send
the log trace for this
Filip
InMemoryReplicationManager
on Tomcat cluster
Sorry, I meant / not .
I have this running on a two node cluster, and even though the logs show
this message on both nodes in catalina.out, I know that the data is
replicating. I can shutdown one node, and the session data has
persisted on
the other.
Here
InMemoryReplicationManager on Tomcat cluster
Sorry, I meant / not .
I have this running on a two node cluster, and even though the logs
show this message on both nodes in catalina.out, I know that the data
is replicating. I can shutdown one node, and the session data has
persisted on the other
Hi!
Is there any way to debug performance/load of particular node in tomcat
cluster? I remember that it was possible with JServ to configure log
file so, that it contained information about how many requests are
served by each node. I tried to configure JkRequestLogFormat to do the
same thing
in Solaris6 is too slow, for some reason.
I have questions for those who have the tomcat cluster in there production
site:
how about the performance in your site? Is there anything wrong with my
configuration or should
I use JK2 to improve performance?
The configuration files and log files are attached
, January 15, 2003 6:04 PM
Subject: concern about Apache + mod_jk + Tomcat cluster
Hi,
I installed the Apache1.3.27, mod_jk1.2.1 and Tomcat4.1.18 recently on our
Solaris6 machine. The approach is that let 1 apache as web server
dispatches
requestes to the 3 tomcat server instances. There is no error
questions for those who have the tomcat cluster in there production
site:
how about the performance in your site? Is there anything wrong with my
configuration or should
I use JK2 to improve performance?
The configuration files and log files are attached with this email.
OS: Solaris 6
(5G mem).
I use the grinder http://grinder.sourceforge.net/
as load testing tool.
Thanks,
Jerry You
-Original Message-
From: Ben Ricker [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 15, 2003 12:54 PM
To: '[EMAIL PROTECTED]'
Subject: Re: concern about Apache + mod_jk + Tomcat cluster
Has anybody any book online, or tutorial about how use Tomcat in cluster ?
Thanks !!!
_
MSN Photos é a maneira mais fácil e prática de editar e compartilhar sua
fotos: http://photos.msn.com.br
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Gesendet: Donnerstag, 10. Oktober 2002 15:39
An: [EMAIL PROTECTED]
Betreff: Tomcat cluster
Has anybody any book online, or tutorial about how use Tomcat
in cluster ?
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On 2002-10-10 Ricardo de Souza Moura wrote:
Has anybody any book online, or tutorial about how use Tomcat in cluster
?
Thanks !!!
Hi.
You might wanna try http://www.theserverside.com/resources/index.jsp and
select link Clustering Technologies: In Memory Session Replication in
Tomcat 4.
-
: Tomcat cluster
Here is some brain food:
http://www.ubeans.com/tomcat
http://www.onjava.com/pub/a/onjava/2002/07/17/tomcluster.html
http://www.onjava.com/lpt/a/1228
http://www.javaworld.com/javaworld/jw-12-2000/jw-1221-servlets.html
-Ursprüngliche Nachricht-
Von: Ricardo de Souza
Thanks for all !!
From: Ralph Einfeldt [EMAIL PROTECTED]
Reply-To: Tomcat Users List [EMAIL PROTECTED]
To: Tomcat Users List [EMAIL PROTECTED]
Subject: AW: Tomcat cluster
Date: Thu, 10 Oct 2002 15:57:02 +0200
Here is some brain food:
http://www.ubeans.com/tomcat
http://www.onjava.com/pub
http://e-docs.bea.com/wls/docs70/cluster/servlet.html#1006761
Basically, the load balancer assigned each request with 2 server: one primary, one
secondary. The client's session is replica between the primary and secondary server.
When the primary fails, the secondary server will take over.
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