Out of curiosity, how does tomcat handle request routing across
multiple instances/servers. In a traditional deployment the WOAdaptor
apache module would take care of routing the request to the
appropriate application instance, how does this work under a clustered
tomcat deployment?
On 10/03/2009, at 6:20 PM, Oliver Scheel wrote:
Though I was sceptical to deploy a WO app under Tomcat at the
beginning, too, I was surprised that it works very well (with and
without Wonder). I did a SSDD which requires no installation of WO.
The only thing you should be care of are the WebServerResources.
One solution is to do a clean split install, but that requires some
extra web server configuration or embed it in the WAR (e.g. for low
traffic applications). For the second variant I use a modified
resource request handler to ensure that no local files (e.g. /etc/
passwd ;-)) can be delivered and images within css are handled
correclty.
Concerning performance: It depends on how many instances of Tomcat
you want deploy. If it's only one, you should:
- Use Wonder
- Use ERXEC
- WOAllowsConcurrentRequestHandling=true
- er.extensions.ERXObjectStoreCoordinatorPool.maxCoordinators=5 (for
example)
This works fine for me. If it is a high traffic site you should read
the clustering chapter in the Tomcat documentation.
Oliver
Am 09.03.2009 um 08:08 schrieb ute Hoffmann:
Hallo,
I have to decide wether deploying a new app in tomcat, but have no
experience with this,
having done only "traditional" deploys up to now.
Are there any caveats, performance problems or security issues
or other things I need to keep in mind in contrast to a traditional
JavaMonitor deployment?
Do I need to install WebObjects, when deploying via Tomcat or can I
do a
war deployment with all frameworks included, thus needing to
install only tomcat on the machine?
I work in WebObjects 5.3 and the deployment machine has Java 1.6
installed
and is a debian linux.
Do I need the Java jdk or is the java jre enough?
Many thanks for your help,
Regards,
Ute
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