Re: Smooth applications migration in a J2EE cluster [mod_jk]

2007-01-08 Thread Anthony Vromant
Hi Rainer, As we discussed recently, using a Tomcat Valve or a Filter to detect invalidated session could be a good approach. Can I have your feeling about such a Tomcat filter : If session is invalid (or new) - Set sendRedirect attribute of HtppResponse at the same value of current HttpReq

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-27 Thread Anthony Vromant
Hi Rainer, I wanted to know if you had had time to think on the subject of the invalidated session Valve ? Other informations that you gave us before were very useful. Thanks a lot. Regards, Anthony Anthony Vromant wrote: Hi Rainer, In my test case, i start only with 3 actives workers. So

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-20 Thread Anthony Vromant
Hi Rainer, In my test case, i start only with 3 actives workers. So i think you want me to make a graceful restart of apache in order to add the 3 stopped workers ? Is this that ? Anyhow, i understand that without changing route, this can be a good solution. But about the invalidated session

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-19 Thread Rainer Jung
Anthony Vromant schrieb: > Hi, > > The scenario you explained me doesn't work in my env. I'm trying to find > out the reasons below : > > Here is the code : > > jk_lb_worker.c : "find_bysession_route()" > > candidate = find_by_session(p, name, l); > > if (!candidate) { > uses_domain =

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-19 Thread Rainer Jung
Hi Anthony, Anthony Vromant schrieb: > Here is the explanation about the session validity checking : > > This test aims to have users with expired sessions and URL encoded > bookmarks > (or long running browsers with cookies cached) redirected to a node > hosting the new version of the applicatio

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-19 Thread Anthony Vromant
Hi, The scenario you explained me doesn't work in my env. I'm trying to find out the reasons below : Here is the code : jk_lb_worker.c : "find_bysession_route()" candidate = find_by_session(p, name, l); if (!candidate) { uses_domain = 1; candidate = find_best_bydomain(p, name,

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-19 Thread Anthony Vromant
Hi Rainer, Thanks for this explanations. I'm going to try to give you more technical informations. Rainer Jung wrote: Hi, yes I looked at the animation. Although I must confess, that I don't get much out of it technically. What's the reason for the need to test session validity? Is it needed

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-16 Thread Rainer Jung
Hi, yes I looked at the animation. Although I must confess, that I don't get much out of it technically. What's the reason for the need to test session validity? Is it needed to find out, if a node already got upgraded to a new app version, so the session needs to get routed to a node, still runni

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-15 Thread Anthony Vromant
Hi all, I would like to know if you had time to look at the demonstration of our prototype. We are very interested to get your feelings about that. Do you have ideas about our problem of testing the validity of a user session within mod_jk ? We're thinking about a mechanism relying on the JM

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-08 Thread Anthony Vromant
Hi, This will be better with this link : https://wiki.objectweb.org/jonas/Wiki.jsp?page=JOnASClusteringSmoothUpdateWebCluster You just have to click on "Launch the demonstration". Sorry for the mistake. Regards, Anthony Henri Gomez wrote: The page is password protected ;( Sad since I'm also

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-08 Thread Henri Gomez
The page is password protected ;( Sad since I'm also very interested in seeing what you plain to do. Regards 2006/12/8, Anthony Vromant <[EMAIL PROTECTED]>: Hi Rainer, First of all, thank you for these informations. Here is the HTTP link for the Flash demonstration of our prototype : https:/

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-08 Thread Anthony Vromant
Hi Rainer, First of all, thank you for these informations. Here is the HTTP link for the Flash demonstration of our prototype : https://wiki.objectweb.org/jonas/Upload.jsp?page=JOnASClusteringSmoothUpdateWebCluster I am looking at the new features provided by mod_jk 1.2.20, the dynamic conf

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-06 Thread Rainer Jung
Hi Anthony, since your oce is based on 1.2.15 first the information for you, that between 1.2.15 and the released 1.2.19 there were a lot of features added. No old features has been dropped, so it should be feature compatible with 1.2.15. You can look at the changelog http://tomcat.apache.or

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-06 Thread Anthony Vromant
Rainer Jung wrote: Mladen Turk wrote: Anthony Vromant wrote: Would it be possible to integrate such a feature in the original mod_jk ? If yes, we may contribute to the development by providing our code. There is no need to ask something like that. Just like for any other patch bring in t

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-05 Thread Rainer Jung
Mladen Turk wrote: Anthony Vromant wrote: Would it be possible to integrate such a feature in the original mod_jk ? If yes, we may contribute to the development by providing our code. There is no need to ask something like that. Just like for any other patch bring in the code, and we'll d

Re: Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-05 Thread Mladen Turk
Anthony Vromant wrote: Would it be possible to integrate such a feature in the original mod_jk ? If yes, we may contribute to the development by providing our code. There is no need to ask something like that. Just like for any other patch bring in the code, and we'll discuss, but it cannot

Smooth applications migration in a J2EE cluster [mod_jk]

2006-12-05 Thread Anthony Vromant
Hello, I am member of the JOnAS team (http://jonas.objectweb.org/), the ObjectWeb application server (http://www.objectweb.org/). We are developing a prototype which provides a smooth web applications migration mechanism within a Java EE cluster (without interruption of service and in a tran