[Linux-cluster] CS4 Update 2 & Patch watchdog on
Alain Moulle
Alain.Moulle at bull.net
Wed Sep 13 07:51:31 UTC 2006
>> The self-watchdog patch adds a process which monitors the "real"
>> clurgmgrd. The monitoring process should be the lower-numbered PID
>> (it's the parent of the one doing the work).
>> The monitoring process watches for crash signals (SIGBUS, SIGSEGV,
>> etc.), and will simply exit if you kill the child with SIGKILL.
>> So, basically, killing the higher-numbered PID with something like
>> SIGSEGV should cause the node to reboot.
>> -- Lon
Thanks Lon, I understand.
And if I kill -9 (SIGKILL) the higher-numbered PID at test purpose,
is it expected to reboot or not ?
I see in code :
case SIGCHLD:
case SIGILL:
case SIGFPE:
case SIGSEGV:
case SIGBUS:
setup_signal(i, SIG_DFL);
break;
default:
setup_signal(i, signal_handler);
but can't conclude for a SIGKILL on higher-numbered PID process ...
Thanks again
Alain Moullé
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