Re: Immediate shutdown and system(3)

Fujii Masao wrote:
> On Fri, Feb 27, 2009 at 6:52 PM, Heikki Linnakangas
> <heikki(dot)linnakangas(at)enterprisedb(dot)com> wrote:
>> I'm leaning towards option 3, but I wonder if anyone sees a better solution.
>
> 4. Use the shared memory to tell the startup process about the shutdown state.
> When a shutdown signal arrives, postmaster sets the corresponding shutdown
> state to the shared memory before signaling to the child processes. The startup
> process check the shutdown state whenever executing system(), and determine
> how to exit according to that state. This solution doesn't change any existing
> behavior of pg_standby. What is your opinion?

That would only solve the problem for pg_standby. Other programs you
might use as a restore_command or archive_command like "cp" or "rsync"
would still core dump on the SIGQUIT.

--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com