WAS v8.5 > WebSphere applications > Service integration > MediationsMediation application installation
A mediation application is an enterprise application (EAR file) containing a mediation handler enterprise bean project. Installing the EAR file into WebSphere Application Server (base) makes the mediation handler available for use at a destination.
You must install the EAR file on every server on which you intend the mediation to run, taking into account the following:
- If you intend the mediation to mediate a topic, install the mediation on every server that has a messaging engine.
- If you add a new member to the bus after we have mediated a topic, install the mediation on the new bus member.
- If you are installing on a queue, install the EAR file on the queue point.
Install a mediation application on a secure server
If you are installing a mediation application for use when WAS security is enabled, ensure the messaging engine can access the mediation. For more information, see Ensuring the message engine can access mediations.
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Install a mediation