Generally each message consumer subscribes to a topic. When a message is published to that topic, all subscribed consumers receives the message. Because of this there might be time dependency. By default, subscibers only receive messages, when they are active.If the messages are delivered when the subscriber is not available, the subscriber does not receive these messages.

Java Message Service( JMS) specifies a way to remove the part of timing dependency by allowing subscribers to create durable subscriptions. Messages for durable subscriptions are stored on the server until the message expires or the storage limit is reached. Subscribers can receive messages from a durable subscription even if the subscriber was not available when the message originally delivered

The default parameters associated with this test are as follows:

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• In the HOST text box, the host name of the server for which the test is to be configured has to be specified.

• In the PORT text box, mention the port at which the specified HOST listens.

• Prior to monitoring the Tibco EMS server, you will have to build a .bat or .sh file (depending upon the operating system on which Tibco EMS is functioning) bundled with the commands that the eG agent needs to execute on the Tibco EMS server for collecting the required metrics. The commands to be invoked by the the .bat or .sh file are as follows:

  tcp://{IPAddressorHostName_of_TibcoEMS}:{PortNumber_of_TibcoEMS} show server

  tcp://{IPAddressorHostName_of_TibcoEMS}:{PortNumber_of_TibcoEMS} show durables

  tcp://{IPAddressorHostName_of_TibcoEMS}:{PortNumber_of_TibcoEMS} show queues

  tcp://{IPAddressorHostName_of_TibcoEMS}:{PortNumber_of_TibcoEMS} show topics

  tcp://{IPAddressorHostName_of_TibcoEMS}:{PortNumber_of_TibcoEMS} show connections

  For instance, if the IP address of your Tibco EMS server is 192.168.10.28 and its port is say, 9090, then a sample command in the .bat or .sh file would be:

  tcp://192.168.10.28:9090 show server

  The .bat/.sh file so created can be saved to any location on the Tibco EMS host. Then, while configuring this test, make sure you provide the full path to this .bat or .sh file in the COMMANDPATH text box so that, the agent can execute the file, invoke the commands bundled into it, and extract the desired metrics from the server.

• If multiple components of the same component type are awaiting configuration, then an APPLY TO OTHER COMPONENTS check box will appear in this page. Clicking on this check box will allow you to apply the configuration to all/selected components of that type.

• Once the necessary values have been provided, clicking on the Update button will register the changes made.

When changing the configuration for specific servers, a “*” beside the text box corresponding to the parameter signifies that these values have to be manually configured by the user. The parameter values that require to be configured will typically be prefixed with a “$” or contain a series of “*”. A value of "none" in the parameter value indicates that the corresponding parameter value can be changed if required.