nginx on Tru64/alpha

[Dustin Marquess]

On Mon, Feb 23, 2009 at 3:09 AM, Igor Sysoev <is at rambler-co.ru> wrote:
> On Sun, Feb 22, 2009 at 05:49:31PM -0600, Dustin Marquess wrote:
>
>> I recently installed nginx 0.7.37 on Tru64 5.1B-4 using Compaq C
>> V6.5-303 compiler.
>>
>> Everything works great if I leave the default of worker_processes set
>> to 1.  However, if I increase it to 2 (since this machine has 2 CPUs),
>> I immediately start getting a flood of fcntl errors in the error.log.
>>
>> Running truss on the process shows that both processes attempt to lock
>> the same nginx.lock.accept file, which is what causes the problem.
>
> Could you shou the error messages ?

The log file shows:

2009/02/24 02:17:02 [alert] 438988#0: fcntl(F_SETLK, F_WRLCK) failed
(13: Permission denied)
2009/02/24 02:17:03 [alert] 438988#0: fcntl(F_SETLK, F_WRLCK) failed
(13: Permission denied)
2009/02/24 02:17:03 [alert] 438988#0: fcntl(F_SETLK, F_WRLCK) failed
(13: Permission denied)

Truss shows:

438988: fcntl(7, F_SETLK, 0x000000011FFFBC28)           Err#13 Permission denied

going farther back in the truss shows that fd 7 is the mutex:

438988: open("/usr/local/nginx/logs/nginx.lock.accept",
O_RDWR|O_CREAT, 0644) = 7
438988: unlink("/usr/local/nginx/logs/nginx.lock.accept") = 0

>> Is this a known problem, and is there a workaround?
>
> Try
>
> events {
>    accept_mutex  off;
>    ...
> }


Awesome, that seems to work!

Thanks!
-Dustin