Hi Dave,

My plan is to have the OSGi gateway talk to a hardware load balancer (thank 
goodness we have it in inventory) and so there is no need to use Squid and 
the like.  So in a sense, the gateway will function as a proxy server and at 
the same time act as an interceptor to a certain extent. By doing so, it 
will just complement the load balancer in addition to performing some 
specialized functions.  I'm not aware of restlet so I will certainly look 
into it.  And yes, pax logging is certainly a candidate.  Thanks for the 
suggestions!

-- rick

----- Original Message ----- 
From: "David Leangen" <[EMAIL PROTECTED]>
To: "General OPS4J" <general@lists.ops4j.org>
Sent: Monday, September 24, 2007 11:49 PM
Subject: Re: Need to deploy a gateway


>
> Rick,
>
> If it were me, if you are talking about load balancing or some other
> kind of replication, I'd use some existing clustering framework rather
> than building my own with OSGi.
>
> If you are just talking about routing based on the application, then I'd
> use a proxy (such as apache/mod_proxy or Squid) rather than trying to do
> this in OSGi. If you really want to do this in OSGi, then maybe take a
> look at restlet, which can allow you to route requests.
>
> This of course would sit on your proxy server.
>
>
> As for authentication, you could have one backend service that services
> all your machines, that is if you want to avoid replication of that
> service.
>
> Logging and such... well, I'd just add an instance of the pax-logging,
> for bundle example, on each server, rather than trying to centralize it.
>
>
> Just my 2 cents.
>
>
>
> Good luck!
> Dave
>
>
> On Mon, 2007-09-24 at 23:49 -0400, Rick Litton wrote:
>> Hi everyone,
>>
>> I apologize for the long absence from this ML since moving to a new
>> role (job).  But now I'm planning to set up an OSGi gateway as an
>> entry point to a web portal project. The gateway will accept requests
>> (via http) and route each request to the appropriate service handler
>> (a clustered web server).  In addition, it should also be able to
>> handle common services such as authentication, logging, etc. and other
>> usual OSGi service stuff.  The solution must be robust enough to
>> handle and service requests that number in the several thousands per
>> day.  My first concern is to ensure reliability by avoiding an SPF
>> (single point of failure).  Also, I'm not so sure that a single
>> HttpService service bundle can do the job, i.e. it doesn't become a
>> bottleneck.  Since I'm in the company of great minds here at OPS4J, I
>> would like to gather some suggestions as to how I may be able to
>> implement an ideal solution.  So please feel free to comment.  Your
>> ideas will be highly appreciated.  Thanks.
>>
>> -- rick
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>
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