Re: rebellious pg stats collector (reopened case)

Laszlo Nagy <gandalf(at)shopzeus(dot)com> writes:
> maybe is it possible to change the source code, and disable the "is
> postmaster alive" check for testing?

Rather than disabling it, it'd probably be more convenient to make
any getppid value except 1 (the init process) be treated as "it's
alive". Otherwise you'll have trouble with the collector not stopping
when you want it to. Look into src/backend/storage/ipc/pmsignal.c:

- return (getppid() == PostmasterPid);
+ return (getppid() != 1);

(Obviously this is a hack, but it should work on any Unixish system)

regards, tom lane