This video describes the usual erros that users could do while enabling ia4j tracing on Informatica services. Also explains how to identify those errors and fix them quickly with out reaching out to Informatica Support line.
How to unassign services from an expired key and assign them to a valid key in 9.1.0 and 9.5.1
How to automate the repository and domain back up process for disaster recovery in PowerCenter
How to find in which host the Repository Integration service is running in a multi node domain