Re: Clear Tomcat Classloader cache?
- From: tkonrath@xxxxxx
- Date: 1 May 2007 23:52:09 -0700
On Apr 30, 4:36 am, Cheng Wei Lee <cheng....@xxxxxxxxx> wrote:
On 4 abr, 04:44, tkonr...@xxxxxx wrote:
Hi.
As fas as I know, the classloader of the tomcat server caches all
classes, which has been requested once, in the ram. Further request do
not read the file from disk, they are using the information in the
ram.
We want to clear this cache or force the classloader, do read the
class-files (and any other ressource files) once again from disk,
without rebooting the server or restarting the webapp.
Is this possible?
Thanks for help.
Thomas Konrath
I think what you meant to do is to reload the context of your
application after your classes have been updated. To do so, go to
Tomcat Manager and restart your context. Beaware that the classes stay
in the Permanent Generation so they will eventually fill up the
Permanent generation Heap space, which means that you will eventually
have to restart Tomcat or you will run out of memory.
Cheng
Hi.
Thanks for your replies.
The background of my question was just do be able to replace class-
files or other ressource files while tomcat is sill running and all
user sessions keep alive. Restarting the webapp has two negative
aspects: 1) all user sessions would be lost and 2) as you mentioned,
tomcat will run out of memory.
So we have to think of another way to solve our problem.
Thanks for help
Thomas
.
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