Use the Postcard applications
We can verify a local installation, which does not have any communication links with other WebSphere MQ installations), by using the Postcard applications that are supplied with WebSphere MQ.
We can also use the Postcard applications to verify communication between your machine and the machine of another named user, where that machine is running WebSphere MQ and using TCP/IP. Therefore, we can use the Postcard to verify that we can communicate with another server. To use the Postcard applications for this type of verification, either both machines must be in the same cluster or configure channels to communicate between the two machines. We can use the Postcard applications with existing queue managers, as long as both queue managers belong to the same cluster.
To ensure that both machines are part of the same cluster, we can do either of the following:
- Run the Default Configuration wizard on both machines to create or alter the default queue managers and link them to the default cluster
- Create your own queue managers on both machines, create a cluster, and ensure that the queue managers that you create on each machine belong to the same cluster.
There are two Postcard applications. The MQI Postcard uses MQI (Message Queue Interface) to send and receive messages and the JMS Postcard uses JMS (Java™ Message Service) to send and receive messages. The Postcard applications look very similar and work in a similar way. They are used to verify different aspects of the WebSphere MQ installation.
- Use the MQI Postcard to verify that WebSphere MQ is successfully installed and the associated communication links are working properly.
- Use the JMS Postcard to verify that WebSphere MQ Java Messaging support is successfully installed.
- To use the JMS Postcard have a working JRE (Java Runtime Environment).
- If you want the JMS Postcard to use font and color settings different from the Java Virtual Machine defaults, we need to change the postcard.ini file. For more information see WebSphere MQ Using Java.
- Use the Postcard applications to verify a local installation
- Use the Postcard applications to verify a server-to-server installation
Parent topic:
Verify a server installation