Using the Postcard applications
You 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.
You 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,
you can use the Postcard to verify that you 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 you must configure channels to communicate
between the two machines. You 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, you 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 (see Using the Default Configuration wizard).
- 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.
Note: - To use the JMS Postcard you must 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,
you need to change the postcard.ini file. For more information see WebSphere MQ Using Java..
To use the Postcard applications to verify a local installation, see Using the Postcard applications to verify a local installation.
To use the Postcard applications to verify a server-to-server installation,
see Using the Postcard applications to verify a server-to-server installation.