Multi server environment 2004-01-07 - By Riaan Oberholzer
Back
I'm asking this because I've had experience in
WebLogic with this, but I'm not even sure Tomcat can
be set up like this, so maybe this is a non-issue...
anyway...
Suppose you setup Tomcat to have two servers do load
balancing. Thus, you application is replicated over
two servers, although you only deploy it once to the
cluster.
How would Tomcat setup datasources? If I define a
connection pool with 16 connections, will it be sread
over the two servers, or will *each* get 16
connections.
If they are spread, how is it done? Tomcat uses DBCP,
which uses the Pool package which I guess have a
singleton that manages the connections ... but on
which server is the pool (singleton) then actually
active?
This is purely a matter of interest... I run Tomcat as
a single-server, so in theory I am free to use
singletons and be assured that they are indeed true
singletons and not a singleton per server.
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