mod_cluster print out "Error MEM sending ENABLE-APP command" message.

Solution Unverified - Updated -

Issue

HTTP error messages :

manager_handler ENABLE-APP error: MEM: Can't update or insert host alias

JBoss error message:

ERROR [org.jboss.modcluster] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) MODCLUSTER000042: Error MEM sending ENABLE-APP command dns/x.x.x.x:7777, configuration will be reset: MEM: Can't update or insert host alias : 167

What does the messages mean?

Environment

  • Red Hat JBoss Enterprise Application Platform
    • 6.x.

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