Is it generally safe to use SIGCONT on processes?

Question

I have a many daemon processes that sometimes get hung up during a db transaction, thus blocking other queries ( and causing general havoc )

In order to debug, I've added some code in the daemon process to dump a stacktrace when a SIGCONT signal is sent to it.

Is it generally safe to trap SIGCONT on a processes that isn't stopped?

I'd like to use a signal that doesn't kill the process if it's not setup to trap it

score 3 · Accepted Answer · answered Oct 03 '12 at 16:42

3

Yes. If a process does not handle SIGCONT it will "discard signal"

See man signal for the default actions of all signals.

answered Oct 03 '12 at 16:42

Chris S

1 Answers1