06.02.2011 00:39, Ivan Voras пишет:
On 5 February 2011 21:22, Ivan Voras<ivo...@freebsd.org> wrote:
On 5 February 2011 21:03, Ruslan Mahmatkhanov<cvs-...@yandex.ru> wrote:
Can you please tell me more what you mean by ""robust" pthreads mutexes" and
It's just a name for properties of a mutex; actually this is
imprecise, what's needed here is process-shared& robust
(fpm_shm_slots.c: FPM uses shared memory).
Actually I think "robustness" is the key here (in this context it
means that the locks of a thread / processes are released if a thread
/ process dies unexpectedly (crashes)); It is very likely that in your
case the PHP process with FPM SAPI module dies while holding a lock
shared between processes and the other processes get stuck waiting for
this lock to unlock.
Yes, it seems so. But all of this locking/threading is a black magick
for me right now, and i don't feel to be able to study out with this fpm
issue by myself. So i just sent this last obtained info to php-fpm
mailing list. And thank you again, Ivan, for your analysis and
explanations.
--
Regards,
Ruslan
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