Re: Non Responsive WO APPS
Re: Non Responsive WO APPS
- Subject: Re: Non Responsive WO APPS
- From: Aurélien Minet <email@hidden>
- Date: Thu, 20 Nov 2008 19:00:21 +0100
Hi,
A colleague has wrote a little application called WOAlive :
http://www.univ-lr.fr/apps/support/woalive/index.html (sorry all is in
french)
In some cases WebObjects applications are blocked without the associated
java process ends and
the application (in this state) still continues to send WOLifeBeat to
WOTaskd, which therefore can not detect the crash.
Also the application continues to accept TCP connections but can not
respond to an HTTP request.
WOAlive contacts WOTaskd to get (in XML) the list of all instances of
applications that must be running on the server.
Then it access each instances on their respective port with an HTTP
connection. If after a while (wait time is configurable), the instances
does not respond, the 'ForceQuit' is sent to WOTaskd which will restart
the faulty instance.
As it is not a daemon you have to put it in cron to launch it every X
minutes on the server
the command line for using it:
|java -jar WOAlive.jar ||-mailAdmin| /emailAddress/
|-smtpHost| /hostname/ |-password| /cryptedMonitorPassword/
[|-connTimeout| /milliseconds/] [|-port| /wotaskdPort/] [|-verbose|]
source : http://svn.cru.fr/cocktail/OUTILS/WOAlive/trunk/
binary for java 1.4 :
http://www.univ-lr.fr/actes/ged/courrier/commun/0504171825.0/WOAlive.jar
(you may need extra jar for running it
http://svn.cru.fr/cocktail/OUTILS/WOAlive/trunk/lib/)
I hope it could help
Aurelien
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