Instruct a pool master, M, to try and contact its slaves and, if slaves are in emergency mode, reset their master address to M.

Return value
	type	description
	Set[host]	list of hosts whose master address were succesfully reset
Parameters
name	type	description
session_id	session	valid session reference
Errors
name	arguments	description

• Message has both a synchronous and asynchronous version
• This is a custom message