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JMX is the popular management and monitoring technology which has been integrated into Java SE starting with version 5. JDMK (Java Dynamic Management Kit) is a Sun product building on JMX to provide a distributed model with Federated MBean Servers, Agent Discovery, and SNMP support. This is a mature product that reached version 5.1 patch level 3 and it is now being open sourced under the name OpenDMK. Here's a good blog on all things JMX and OpenDMK. |
Sreeni reports how the open sourcing of JDMK impacts GlassFish. The clustering architecture of version 2 uses cascading of instance MBeans on to the DAS (Domain Admin Server) and JMX remote connectivity. The latest GlassFish v2 build now uses the OpenDMK bits instead of the JDMK jars. This is transparent to the user and probably the last step on the way to a full open source GlassFish application server.
