On 27-06-13 13:58, Paul J Stevens wrote:
> On 27-06-13 13:46, Ronald Moesbergen wrote:
>
>> I've checked with lower concurrency (2 thread per sending server) and
>> that seems to work, at least in my test setup. I've also found another
>> workaround: run dbmail-lmtpd under 'xinetd', using dbmail-lmptd in
>> stdin/stdout mode (-n). This way there's always one client talking to
>> one dbmail-lmtpd process. An added bonus when using this method is that
>> it's much faster and can handle much more traffic. Also, there's no
>> long-lived dbmail-lmtpd process that causes downtime when it crashes...
>
>
> Excellent. lmtp under xinetd is indeed a nice approach that allows you
> to scale out better.
Just make sure
[LMTP]
max_db_connections=1
when running lmtp in xinetd mode or else it will eat up too many
database connections.
In other words: max_db_connections=1 should be the default, except for
imapd as long as all other processes are single threaded.
I've just pushed a change to support this. Before, max_db_connections
could only be set below [DBMAIL]...
--
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