This video explains the Internode communication timeout settings suggestion in Informatica 9.x, and the importance of the setting masterUpdateTimeInterval property in maintaining the domain stability.
How to find in which host the Repository Integration service is running in a multi node domain
How to unassign services from an expired key and assign them to a valid key in 9.1.0 and 9.5.1
Converting and adding of a self signed certificate to use a Webservice Consumer transformation