Re: [JBoss-user] Httpsession clustering synch?

[Jules Gosnell]

I think it is simply that a new node is not correctly initialising it's state from the existing state of the cluster. - Rick ?

I use the native JG setState()? stuff to do this, but it is a while since I looked at it...

Hopefully the server logs should throw some light on it.

Jules



Sacha Labourey wrote:

Ah, ok, I thought he was using the JBoss' one. Anyway, I was interested in
the problem and wasn't able to understand the scenario. Did you? ;)

-----Message d'origine-----
De : [EMAIL PROTECTED]
[mailto:jboss-user-admin@;lists.sourceforge.net]De la part de Jules
Gosnell
Envoy� : mardi, 5 novembre 2002 11:38
� : [EMAIL PROTECTED]
Objet : Re: [JBoss-user] Httpsession clustering synch?


Sacha,

JBoss/Jetty's current default session distribution is an
attribute-by-attribute native JG based impl, not the
whole-session-at-a-time jbossha-based one. So this is a problem in my
code - you can relax :-)


Rick,

Could you send me the server.logs for both servers showing startup,
deployment of the app and the failed session access.

If you are running 3.0.4, find the configuration of the session
interceptor stack in your jbossweb.sar/META-INF/jboss-service.xml and
insert, near the top, an org.mortbay.j2ee.session.DebugInterceptor
before you create these logs. This will echo out all session
interactions and give me a much better chance of seeing what is going on.

Cheers,

Jules


Sacha Labourey wrote:

OK, now that we know what is your environment, can you explain a

little bit

more your problem i.e. "if server a is in use, then I start

server b, server

b won't have the session" ;)

Cheers,


			Sacha

-----Message d'origine-----
De : [EMAIL PROTECTED]
[mailto:jboss-user-admin@;lists.sourceforge.net]De la part de Rick
LaBanca
Envoy� : mardi, 5 novembre 2002 02:35
� : [EMAIL PROTECTED]
Objet : Re: [JBoss-user] Httpsession clustering synch?


redhat 7.3, jdk 1.4 (sun), jboss 3.0.4

Clustering enabled per the clustering doc (copy the cluster xml file,
jbossha sar, javagroups jar, <distributed/> tag added)

The test is with precompiled jsp's (so essentially servlets).

What I am doing now for my simple test is this. I have two
servers clustered
this way. On a third windows box, I have a little utility that
lets me map a
local port to another ip:port, that allows me to switch over
manually. So I
use server A, kick the utility over to B and test. Everything seems fine
except for this one case.

Again, it's not clear how it's supposed to work, is it supposed
to synch up
servers coming online after activity has already occurred?

rick


----- Original Message -----
From: "Jules Gosnell" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 04, 2002 7:51 PM
Subject: Re: [JBoss-user] Httpsession clustering synch?

OS
JVM
JBoss version
What have you done to enable httpsession clustering
How are you load-balancing/failing-over between the http nodes
Are you testing using servlets or JSPs
etc....

Jules

Rick LaBanca wrote:

Sorry, thought the clustering was abstracted, using jetty. I'm just at

the

point where I'm not sure of the intended operation. As for

more detail,
I'm

not sure what would be useful. I have it rigged so I can

switch between
two

servers, the only two together. Going to server B won't get me the

session

info. If I instead start both, then fool with a's session, b is OK.

----- Original Message -----
From: "Jules Gosnell" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 04, 2002 4:43 PM
Subject: Re: [JBoss-user] Httpsession clustering synch?

Jetty or Tomcat - more detail please.

Jules

LaBanca, Rick wrote:

It appears clustering session works well, except for one

condition. If

server a is in use, then I start server b, server b won't have the

session

info (I guess it wasn't around to hear it). Is this just the

limits of

the

javagroups type session persistence? (Or maybe I still have

a setting

botched somewhere)

Rick


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