The server_name -durableSubscriptions.ser file in the WAS_HOME/temp directory is important for the operation of the WebSphere Application Server messaging service, so should not be deleted.

If you do need to delete the WAS_HOME/temp directory or other files in it, ensure that you preserve the following file:

server_name-durableSubscriptions.ser

You should not delete this file, because the messaging service uses it to keep track of durable subscriptions for message-driven beans. If you uninstall
an application that contains a message-driven bean, this file is used to unsubscribe the durable subscription.

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