Developers of Sympa

[David Verdin <address@concealed>]

Hi Andras and sorrysorrysorrysorrysorry for this late answer.
I had a lot of troubles lately and I'm afraid I neglected the Sympa 
lists too much.

Anyway, to answer your request, we need the pid number in some cases, 
such as when a process crashed and a new process starts and finds a pid 
file. This is how we are able to send the errors that made the process 
crash to the listmaster.
However:
- it is not necessary anytime, so we could tweak this.
- I don't see any reason why we sould put a write lock when displaying 
the list of lists. All we need to do, after all, is read data to know 
whether we can display a list or not. Nothing to write here. So there 
may be a bug.

Regards,

David

Le 19/12/10 17:24, Andras Bendzsak a écrit :
> Hi All,
>
> Many times has been discussed that the list if lists page load very
> slow in large mailing list servers at the first time.
>
> I found a small improvement in the locking system. The Locking system
> write the process pid to the lock file when the lock type is write.
> This doubles the necessary io operations. I had replaced the pid number
> ($$) with an empty string and the loading time has improved
> significantly.
>
> Is this pid number used by any part of sympa? If not I
> recommend to remove this feature.
>
> This is the relevant part of the Lock.pm:
>
>         ## Keep track of the locking PID
>         if ($mode eq 'write') {
>             print $fh "$$\n";
>         }
>      }else {
>         &do_log('err', 'Failed locking %s: %s', $lock_file, $!);
>         return undef;
>      }