Failed to get the sockets from the old process

Help!
1

Available polling systems :
epoll : pref=300, test result OK
poll : pref=200, test result OK
select : pref=150, test result FAILED
Total: 3 (2 usable), will use epoll.

Available filters :
[SPOE] spoe
[COMP] compression
[TRACE] trace
Using epoll() as the polling mechanism.
[WARNING] 202/144958 (3509) : Failed to get the number of sockets to be transferred !
[ALERT] 202/144958 (3509) : Failed to get the sockets from the old process!

Any reasons why is it a wrong parameter or somehting?

2

arg, i had multiple stats socket… one not including “expose-fd listeners”…