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Posted to users@tomcat.apache.org by Andrew R Feller <af...@lsu.edu> on 2008/02/25 22:28:53 UTC
Tomcat plans for per-webapp session replication
Are there any plans to have Tomcat handle session replication on a
per-webapp basis?
We currently have several servers configured for session replication
because of a single application. Not only do we not want session values
from other applications on the machines to be replicated as it is
unnecessary, we wanted a way to store that configuration with a webapp's
META-INF.
Andrew R Feller, Analyst
University Information Systems
200 Fred Frey Building
Louisiana State University <http://www.lsu.edu/>
Baton Rouge, LA, 70803
(225) 578-3737 (Office)
(225) 578-6400 (Fax)
Re: Tomcat plans for per-webapp session replication
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Andrew,
Andrew R Feller wrote:
| My apologies; let me clarify:
|
| Are there plans for session replication such that configuring server.xml
| is unnecessary? So rather than configuring it at the server level and
| simply marking a webapp as distributable, you could configure session
| replication in a webapp's META-INF or WEB-INF.
You need to configure the cluster somewhere, and you can't do that in
web.xml. Any cluster configuration is outside of the Servlet Spec, so
it's gotta go somewhere besides web.xml. In Tomcat, that place is in
server.xml.
- -chris
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RE: Tomcat plans for per-webapp session replication
Posted by Andrew R Feller <af...@lsu.edu>.
My apologies; let me clarify:
Are there plans for session replication such that configuring server.xml
is unnecessary? So rather than configuring it at the server level and
simply marking a webapp as distributable, you could configure session
replication in a webapp's META-INF or WEB-INF.
Thanks,
Andrew R Feller, Analyst
University Information Systems
200 Fred Frey Building
Louisiana State University
Baton Rouge, LA, 70803
(225) 578-3737 (Office)
(225) 578-6400 (Fax)
-----Original Message-----
From: Rainer Jung [mailto:rainer.jung@kippdata.de]
Sent: Monday, February 25, 2008 3:45 PM
To: Tomcat Users List
Subject: Re: Tomcat plans for per-webapp session replication
Not sure what you mean by this: session replication is local to webapps.
After configuring the cluster element in server.xml, you need to
activate replication for each webapp with a distributable element in
web.xml and only session changes for those webapps with distributable
set get replicated. On the receiving end the replication messages are
automatically dispatched to the same webapp.
Maybe I din't understand your question?
Regards,
Rainer
Andrew R Feller schrieb:
> Are there any plans to have Tomcat handle session replication on a
> per-webapp basis?
>
>
>
> We currently have several servers configured for session replication
> because of a single application. Not only do we not want session
values
> from other applications on the machines to be replicated as it is
> unnecessary, we wanted a way to store that configuration with a
webapp's
> META-INF.
>
>
>
>
>
> Andrew R Feller, Analyst
>
> University Information Systems
>
> 200 Fred Frey Building
>
> Louisiana State University <http://www.lsu.edu/>
>
> Baton Rouge, LA, 70803
>
> (225) 578-3737 (Office)
>
> (225) 578-6400 (Fax)
>
>
>
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Re: Tomcat plans for per-webapp session replication
Posted by Rainer Jung <ra...@kippdata.de>.
Not sure what you mean by this: session replication is local to webapps.
After configuring the cluster element in server.xml, you need to
activate replication for each webapp with a distributable element in
web.xml and only session changes for those webapps with distributable
set get replicated. On the receiving end the replication messages are
automatically dispatched to the same webapp.
Maybe I din't understand your question?
Regards,
Rainer
Andrew R Feller schrieb:
> Are there any plans to have Tomcat handle session replication on a
> per-webapp basis?
>
>
>
> We currently have several servers configured for session replication
> because of a single application. Not only do we not want session values
> from other applications on the machines to be replicated as it is
> unnecessary, we wanted a way to store that configuration with a webapp's
> META-INF.
>
>
>
>
>
> Andrew R Feller, Analyst
>
> University Information Systems
>
> 200 Fred Frey Building
>
> Louisiana State University <http://www.lsu.edu/>
>
> Baton Rouge, LA, 70803
>
> (225) 578-3737 (Office)
>
> (225) 578-6400 (Fax)
>
>
>
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To start a new topic, e-mail: users@tomcat.apache.org
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Re: Tomcat plans for per-webapp session replication
Posted by Filip Hanik - Dev Lists <de...@hanik.com>.
this has been done since the beginning of session replication.
if your webapp has <distributable/> in web.xml sessions will be replicated.
if the element is missing, session data will not be replicated even if
the server is configured for clustering
Filip
Andrew R Feller wrote:
> Are there any plans to have Tomcat handle session replication on a
> per-webapp basis?
>
>
>
> We currently have several servers configured for session replication
> because of a single application. Not only do we not want session values
> from other applications on the machines to be replicated as it is
> unnecessary, we wanted a way to store that configuration with a webapp's
> META-INF.
>
>
>
>
>
> Andrew R Feller, Analyst
>
> University Information Systems
>
> 200 Fred Frey Building
>
> Louisiana State University <http://www.lsu.edu/>
>
> Baton Rouge, LA, 70803
>
> (225) 578-3737 (Office)
>
> (225) 578-6400 (Fax)
>
>
>
>
>
> ------------------------------------------------------------------------
>
> No virus found in this incoming message.
> Checked by AVG Free Edition.
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>
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