[Asterisk-Users] Polling Asterisk for Life

[Mike Clark]

Joseph Tanner wrote:

>The problem isn't that asterisk isn't running, it's that asterisk is
>not responding.  When asterisk is in this funky state, I can still run
>"asterisk -vvvvr" from the command line and get access to the CLI. 
>While in the CLI, the only command that asterisk will respond to is
>"exit" which drops me back to the shell.  If I try to issue a "stop
>now", asterisk just immediately returns to the CLI> prompt.  It does
>this for every single command, except for "exit".
>
>So, simply respawning asterisk, or checking to see if it's running
>isn't good enough, because asterisk is indeed running.  We need to
>access asterisk and issue a command, and see if asterisk responds
>appropriately.  If not, we can assume it has died, and we can kill it
>off (killall -9 asterisk) and then start it back up again (or reboot
>the whole server if necessary).
>
>Yes, it's an odd problem, but I've noticed it so I can confirm it is a
>state asterisk can get into, and can confirm its symptoms.  Hopefully
>all that is over with now after I upgraded (also fyi, I also moved my
>x101p around so it'd get its own irq, so it's possible that was the
>problem, though I doubt it).  If it turns out I still have the
>problem, I'll probably whip up a script to check asterisk's condition
>and restart if needed.
>
>Joseph Tanner
>
>  
>
Do you happen to have TDM400 cards in your system? I have learned to set 
up any machine with TDM400 cards to do a nightly auto-reboot. If we 
don't, they will eventually exhibit behaviour identical to what  you 
describe above.

Mike Clark