How can I retrieve runtime state from the domain model? For instance: - the number of server instances running on a host?

- the number of connections in use (JCA Pool) on a host?

- the number of connections in use across servers?

A pseudo code expression for the operation and it's return values would be helpful. I am especially interested in addressing of those operations and the distinction between runtime state for the domain (i.e. number of server instances) and runtime state of a particular host. Ike _______________________________________________ jboss-as7-dev mailing list jboss-as7-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-as7-dev

Please see my comments inline. On Jan 24, 2011, at 11:08 PM, Brian Stansberry wrote: > On 1/24/11 7:07 AM, Heiko Braun wrote: >> >> >> How can I retrieve runtime state from the domain model? >> For instance: >> >> - the number of server instances running on a host? > > { > "operation" => "read-children_names", > "address" => [("host" => "hostA")], > "name" => "server" > } > Now I am confused. Looking at the schema, I did assume that '/host/servers/server' is merely a configuration template for a server instance. Will these be created dynamically when an instance is started?

Do they get a unique 'name' assigned?

> That's the direct way; get's a list of running server names. > >> - the number of connections in use (JCA Pool) on a host? > > { > "operation" => "read-attribute", > "address" => [ > ("host" => "hostA"), > ("server" => "server1"), > ("subsystem" => "connector"), > ("connector" => "foo") > ], > "name" => "current-connection-count" > } > > I made up the last bit of the address and the attribute name; I'll check > with Jesper for details if you need them. Note the host=>hostA, > server=>server1 -- that's what makes this a single server request. ok, makes sense. I was basically wondering how instances are addressed. (See question above) > >> - the number of connections in use across servers? > > { > "operation" => "read-attribute", > "address" => [ > ("profile" => "default"), > ("subsystem" => "connector"), > ("connector" => "foo") > ], > "name" => "current-connection-count" > } > > The idea is the DC should send the request to all HCs, who in turn would > translate it into server level requests for the relevant servers (those > running profile=>default). The DC would report back results for all > servers, a la the "Multi-Server Responses" section on > http://community.jboss.org/docs/DOC-16354 > > The result wouldn't be an aggregate figure; i.e. add up the numbers from > each server for a total. That kind of thing is possible, but I think > would be too much work to do in any but the most critical use cases. Agreed, let's skip aggregation. > >> >> >> A pseudo code expression for the operation and it's return values would be helpful. >> I am especially interested in addressing of those operations and the distinction between >> runtime state for the domain (i.e. number of server instances) and runtime state of a particular host. >> >> Ike >> _______________________________________________ >> jboss-as7-dev mailing list >> jboss-as7-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/jboss-as7-dev > > > -- > Brian Stansberry > Principal Software Engineer > JBoss by Red Hat > _______________________________________________ > jboss-as7-dev mailing list > jboss-as7-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/jboss-as7-dev _______________________________________________ jboss-as7-dev mailing list jboss-as7-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-as7-dev