Re: [exim] I: "Introduce a delay into the SMTP transaction" …

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Autore: Jeremy Harris
Data:  
To: exim-users
Oggetto: Re: [exim] I: "Introduce a delay into the SMTP transaction" - connection timeout
On 20/09/17 16:40, Heiko Schlittermann via Exim-users wrote:
> 16:14:32 delivering 1duPrv-0005Iz-Hs to hs12.schlittermann.de [84.19.194.10] (info@???)
> 16:14:32 set_process_info: 6006 delivering 1duPrv-0005Iz-Hs to hs12.schlittermann.de [84.19.194.10] (info@???)
> 16:14:32 Connecting to hs12.schlittermann.de [84.19.194.10]:25 ... 84.19.194.10 in hosts_try_fastopen? no (option unset)
> 16:15:22 selecting on subprocess pipes
> 16:16:22 selecting on subprocess pipes
> 16:16:43 failed: Connection timed out (timeout=5m)


Add +pid to log_selector to avoid multiple-pricess confusion.

> So, either the timestamps of the debug log are wrong (I didn't watch it
> closely),


I trust them. You could confirm with strace (-tt -f).

> or the timeout of 5m is reached by some other magic, I mean,
> it looks like 130 seconds instead of 300 seconds, some OS imposed limit?


sysctl net.ipv4.tcp_syn_retries ?

--
Cheers,
Jeremy