Re: [JBoss-user] time synchronization in cluster (ClusterTimer Service)

2003-03-24 Thread David Klimek
Hello, thank you all for answering my questions. To achieve something very close to global cluster clock, I'v decided to implement Clustered Timer service with the same interface as javax.management.timer.Timer. Features: - each added notification will be distributed on each node running

[JBoss-user] time synchronization in cluster

2003-03-20 Thread David Klimek
Hello, I need to be sure that each replica of my clustered application will do specific operation at the same real time (eg at 9:34am). I see two solutions: a) Keep computers clock synchronized Does jboss provide such service or is this OS/administrator issue? b) Cluster TickTock service Will

Re: [JBoss-user] TOP like functionality for jboss

2003-02-25 Thread David Klimek
Hi, information provided by java profiler interface (JVMPI) http://java.sun.com/j2se/1.4/docs/guide/jvmpi/index.html are sufficient to write TOP like tool for jboss, but i have read that using JVMPI will cause JVM to run 2-10 times slower so it would not be acceptable in prodution environment.

[JBoss-user] TOP like functionality for jboss

2003-02-24 Thread David Klimek
Hello, is it possible to know how much processor load generate each deployed app on jboos server? I'm looking for something like a TOP utility, which will display list of deployed apps and processor load in percents. e.g. MyWebApp.war [10%] MyEarApp.ear [20%] JBossWeb.sar [40%] ... thank's

[JBoss-user] How to know that component is not used?

2003-02-12 Thread David Klimek
Hello, I would like to undeploy component (servlet, ejb bean, mbean) from jboss only if I'm absolutely sure that nobody is using it. (no method is actualy called on component). Is possible to find somewhere in containter this information? For EJB I'm considering to write custom Interceptor

Re: [JBoss-user] depends descriptor and cluster dependency

2003-02-03 Thread David Klimek
David Jencks wrote: On Sunday, February 2, 2003, at 07:43 AM, David Klimek wrote: Hello, as I understand meaning of depends tag it specify local dependency between two components on one jboss node. So if A depends on B. B will be deployed on node N at first and A will be deployed on node N

[JBoss-user] depends descriptor and cluster dependency

2003-02-02 Thread David Klimek
Hello, as I understand meaning of depends tag it specify local dependency between two components on one jboss node. So if A depends on B. B will be deployed on node N at first and A will be deployed on node N at second. My question is is there chance to specify cluster wide dependency? When A