I feel kinda weird replying to myself, but...
HELLO??? Anybody out there?
Regards;
Ricardo
On Mon, Mar 20, 2000 at 07:20:18PM +0000, Ricardo Cerqueira wrote:
> Well;
>
> People... (Dan?) Is there any particular reason why qmail-rspawn's default
>behaviour is to mark failures as permanent, instead of temporary?
>
> Here's why I ask... Our relays have an incoming interface, and an outgoing
>interface... also, those relays send the mail back in if it's recipient is a
>customer, and send it out if not. Yesterday, one of the mail relays my ISP uses for
>customers had a hardware problem: the "outgoing" NIC was malfunctioning. So,
>qmail-remote crashed whenever it was called by qmail-rspawn.
>
> According to this snippet of rspawn's code...
>
> switch(wait_exitcode(wstat))
> {
> case 0: break;
> case 111: substdio_puts(ss,"ZUnable to run qmail-remote.\n"); return;
> default: substdio_puts(ss,"DUnable to run qmail-remote.\n"); return;
> }
>
>
> The default behaviour is to return "D" status (permanent failure)...
> So, for a period of 13 hours, over 12k mails were lost (bounced to
>postmaster), instead of remaining in queue. (needless to say, that was not a nice
>thing to happen)
> I've done a few tests (removing the exec bit from qmail-remote, and replacing
>qmail-remote with a non-functioning binary) and confirmed all mails are bounced to
>postmaster, instead of being queued.
> Then, I changed the default exit code to "Z" (temporary failure), recompiled,
>and ran the same tests. This time, it went like it should... mails were not
>delivered, but were stored in queue... qmail-remote was restored, I SIGALRM'ed
>qmail-send, and all of the test messages were delivered.
> So... Is there any reason why it should return "D"? Or is there any reason why
>it shouldn't return "Z"?
>
> Best regards;
> Ricardo Cerqueira
>
> +-------------------
> | Ricardo Cerqueira
> | PGP Key fingerprint - B7 05 13 CE 48 0A BF 1E 87 21 83 DB 28 DE 03 42
> | Novis - Rede T�cnica
> | P�. Duque Saldanha, 1, 7� E / 1050-094 Lisboa / Portugal
--
+-------------------
| Ricardo Cerqueira
| PGP Key fingerprint - B7 05 13 CE 48 0A BF 1E 87 21 83 DB 28 DE 03 42
| Novis - Rede T�cnica
| P�. Duque Saldanha, 1, 7� E / 1050-094 Lisboa / Portugal
