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Dustin Goodwin wrote:
>
> Has anyone thought about adding transaction management to jserv? All the
> most recent load balancing stuff is great. But does not address managability
> at the transaction level. I am trying to just figure out a way to do basic
> monitoring in apache of requests sent to jserv. Has anyone else tried to
> address this?
>
> - Dustin -
Yep, I did already think of keeping count of requests sent to every
JServ.
The choice I had to do was between :
- synchronize all the shared memory accesses, protecting critical
sections with mutexes/monitor
vs
- NO synchronization at all (performance), understanding the possible
impact (I really can live with it, we are on a distributed system, and
even a moniitor could not solve all the possible problems).
What could be cool : offer customers the choice. But, definitively, the
rigth tool for that iis RSE's mm library, which will be part of
Apache2.0 AFAIK.
This "synchronized" shared memory could then be used to implement more
clever load-balancing algorithms.
But OTOH, if you need it, OK to discuss on the subject, and design
something.
Transaction management, IMO, are another point.
Jean-Luc
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