Package com.tangosol.net.management

Class JmxmpServer

  • All Implemented Interfaces:
    MBeanServerFinder
    public class JmxmpServer
extends Object
implements MBeanServerFinder
    An implementation of a Coherence MBeanServerFinder that creates a JMXConnectorServer server that uses JMXMP as its transport rather than RMI. This allows JMX to be visible from inside a container that uses NAT'ing.

    The JMXMP server can be enabled by setting the coherence.management.serverfactory system property to the fully qualified name of this class, or by specifically configuring it in the management section of the operational configuration file.

    Since:
    22.06
    Author:
    Jonathan Knight 2022.04.22

    • Constructor Detail

      • JmxmpServer

        public JmxmpServer()
        Create a JmxmpServer that binds to the any local address.

      • JmxmpServer

        public JmxmpServer​(String address)
        Create a JmxmpServer that binds to the specified address.
        Parameters:
        address - the address to listen on

    • Method Detail

      • findMBeanServer

        public MBeanServer findMBeanServer​(String s)
        Description copied from interface: MBeanServerFinder
        Find an MBeanServer that should be used by the Coherence JMX framework to register new or locate existing MBeans.

        Under some circumstances, there could exist more than one MBeanServer and the default domain name parameter is used to identify which MBeanServer should be returned by this method.

        When standard Coherence MBeans are need to be registered with an MBeanServer, this method is passed the value of the "management-config/default-domain-name" element in the operational configuration descriptor (empty string by default). When a platform or custom MBeans are to be queried using the "mbean/mbean-query" configuration element, the value of the "mbean/mbean-server-domain" element is passed as this parameter.

        Note: Returning null will result in Coherence using the standard MBeanServer discovery algorithm (see MBeanHelper.findMBeanServer(String)).

        Specified by:
        findMBeanServer in interface MBeanServerFinder
        Parameters:
        s - the default domain name; empty string indicates that the caller does not have any preferences and MBeanServerFinder could return any MBeanServer it deems fit
        Returns:
        an existing or new MBeanServer with the specified default domain name (if specified) or null

      • findJMXServiceUrl

        public JMXServiceURL findJMXServiceUrl​(String s)
        Description copied from interface: MBeanServerFinder
        Find the JMXServiceURL for the MBeanConnector used by the Coherence JMX framework.

        When "management-config/managed-nodes" value is set to "dynamic" and a Coherence node is elected to be a management node, then it calls this method to find out if there is an existing MBean Connector running that can be used to access the MBeanServer on the node. It publishes this JMXServiceURL thru the Coherence NamingService.

        If there is no existing MBeanConnector running, then a new Connector is started and its JMXServiceURL is published in the NamingService.

        Specified by:
        findJMXServiceUrl in interface MBeanServerFinder
        Parameters:
        s - the default domain name; empty string indicates that the caller does not have any preferences and MBeanServerFinder could return any JMXServiceURL it deems fit
        Returns:
        JMXServiceURL for the MBeanConnector or null if no MBean Connector running.