RE: [ebxmlms-general] freebXML MSH Scalability

[Ronald v. K. <rv...@ab...>]

All,
 
I'll try to look-up some relevant links tonight (central european time,
it's 17:17 now) and try to recreate a connection-pool class that uses
the pools provided by the app-server afterwards.
 
Ronald

-----Oorspronkelijk bericht-----
Van: Tripathi, Ajit (GXS) [mailto:Aji...@gx...]
Verzonden: woensdag 5 november 2003 11:28
Aan: 'ebx...@li...'
Onderwerp: RE: [ebxmlms-general] freebXML MSH Scalability


Ronald,
 
I too am unfamiliar with administered db connections pools on tomcat
4.x. How does that work? 

If Hermes can use connection pools on app servers/weblogic, that would
help the eventual scalability objective.
 
BTW... why can't authentication also be managed by the server using
JAAS? Consider that.
 
However, in that case, the db connection pool will need to be
configurable in the deployment descriptor for hermes... wherever. 
 
regards,
Ajit

-----Original Message-----
From: Bob Koon [mailto:py...@ce...]
Sent: Wednesday, November 05, 2003 3:04 PM
To: ebx...@li...
Subject: Re: [ebxmlms-general] freebXML MSH Scalability


see comment inline.

Ronald van Kuijk wrote:


Ajit,
 
Regarding point 2, I've already tried once to implement this and it
works. Since all j2ee servers support this and even tomcat and jetty
have connectionpool mechanisms, I'm all in favour of using that what is
provided with the appserver/servlet enginge. What I did not try is to
make it configurable to be able to use both solutions. This would
require a DBConnectionPoolInterface. Since hermes uses a combination of
a connection pool and some direct connections, getRawConnection(), I
mapped the implementation of these methods to the connectionpool. 

I am sorry that I am not familar with it. I would like to ask the use on
using connection pool on tomcat/jetty. Is this connection pool just a db
connection pool or it is another thing?


 
Another thing I was looking at was a real persistency layer (in it's own
package?) as interfaces which would make it possible to also store the
messages in the database as blobs (our ASP does not allow us to store
'things' in a filesystem).

In fact on the design work on Hermes 1.0, we are trying to make a
generalize flow of receiving messages and send messages. Then for each
items on the flow, customization can be done (so persistence part can
also be customized).  However the design is in very early stage and I
cannot provide more information on it yet (I can only say that there are
many changes on 1.0)


 

Unfortunately I had a major system crash and lost all of this code and
did not start over again... 
 
Failover is also not possible (i think) since the message sending
threads (for retries etc) are created on a restart of the server, so if
one crashes you have to restart the other to have it pick up the
messages.
 
One of the other things (for us) is centralized authentication using an
ldap server where we can manage all users/clients/systems that have
access to the server. I'd like an abstraction layer for this to so we
can implement something that uses the authentication of the application
server / servelet engine (e.g. through jaas)

For this one, I have to do some investigation, because I am also not
familiar with it too.



 
 
Ronald

-----Oorspronkelijk bericht-----
Van: Tripathi, Ajit (GXS) [ mailto:Aji...@gx...
<mailto:Aji...@gx...> ]
Verzonden: maandag 3 november 2003 11:06
Aan: ' ebx...@li...
<mailto:ebx...@li...> '
Onderwerp: [ebxmlms-general] freebXML MSH Scalability


Hi,
 
    Hermes MSH is essentially a JAXM servlet with a lot more behind it.
 
    My question is - how does/would hermes scale w.r.t messaging
requirements?
 
    1. Can hermes use administered components such as datasources,
connection pools etc (other than hermes' native connection pools).
    2. What conversational state is preserved in a servlet instance of
hermes MSH? Can different instances of Hermes MSH share the same
underlying resources?
    3. What are the other key considerations w.r.t deploying hermes MSH
in an app server ( e.g. weblogic) cluster?
 
    Has someone experimented with this?
 
regards,
Ajit
 

-----Original Message-----
From: Patrick Yee [ mailto:kc...@ce...
<mailto:kc...@ce...> ]
Sent: Thursday, October 30, 2003 7:47 PM
To: ebx...@li...
<mailto:ebx...@li...> 
Subject: Re: [ebxmlms-general] SMTP Port not configurable


Ajit,
Ooops.. you are right. We will include it in our next release. Thanks
for your suggestion.
Regards, -Patrick
 

    By the way, why is the SMTP port not configurable in
msh.properties.xml? 
 
      <SMTP>
        <Host>localhost</Host>
        <User>ajitkt</User>
        <Password>nainital</Password>
      </SMTP>