Ralf Hildebrandt:
> * Viktor Dukhovni :
> > > On Mar 28, 2019, at 12:03 PM, Wietse Venema wrote:
> > >
> > > And thank you for your thorough investigation that helped to narrow
> > > down the root cause: under high traffic conditions, LMTP connections
> > > are cached but never reused, therefore
* Viktor Dukhovni :
> > On Mar 28, 2019, at 12:03 PM, Wietse Venema wrote:
> >
> > And thank you for your thorough investigation that helped to narrow
> > down the root cause: under high traffic conditions, LMTP connections
> > are cached but never reused, therefore those idle cached connections
> On Mar 28, 2019, at 12:03 PM, Wietse Venema wrote:
>
> And thank you for your thorough investigation that helped to narrow
> down the root cause: under high traffic conditions, LMTP connections
> are cached but never reused, therefore those idle cached connections
> are exhausting server
Juliana Rodrigueiro:
> > To get rid of the 2s delays:
> >
> > /etc/postfix/main.cf:
> > lmtp_connection_cache_on_demand = no
> >
> > Please let us know if that helps. Meanwhile we can develop a proper fix.
>
> And yes, it worked, that helped a lot. Although not as fast as before, but now
> I
On Wednesday, 27 March 2019 20:01:49 CET Viktor Dukhovni wrote:
> On Wed, Mar 27, 2019 at 03:36:28PM +0100, Juliana Rodrigueiro wrote:
> > However, during a benchmark, we realized 3.3.2 was 5 times slower than the
> > version before.
>
> This is misleading. Postfix is not 5 times slower, your
Wietse Venema:
> Juliana Rodrigueiro:
> > Excerpt of maillog version > 2.11.1:
> > Mar 27 14:46:50 localdomain postfix/lmtp[24750]: 6CEFF61:
> > to=, orig_to=,
> > relay=localdomain.com[/var/
> > imap/socket/lmtp], delay=0.02, delays=0.01/0/0.01/0, dsn=2.1.5, status=sent
> > (250 2.1.5 Ok
> On Mar 27, 2019, at 3:01 PM, Viktor Dukhovni
> wrote:
>
> There's likely a bug. We should either simulate a synthetic nexthop
> ($myhostname?) for unix-domain destinations, and then do nexthop
> reuse (and perhaps do no caching by endpoint address for unix-domain
> destinations), or go back
Juliana Rodrigueiro:
> Excerpt of maillog version > 2.11.1:
> Mar 27 14:46:50 localdomain postfix/lmtp[24750]: 6CEFF61:
> to=, orig_to=,
> relay=localdomain.com[/var/
> imap/socket/lmtp], delay=0.02, delays=0.01/0/0.01/0, dsn=2.1.5, status=sent
> (250 2.1.5 Ok SESSIONID=)
> Mar 27 14:46:50
On Wed, Mar 27, 2019 at 03:36:28PM +0100, Juliana Rodrigueiro wrote:
> However, during a benchmark, we realized 3.3.2 was 5 times slower than the
> version before.
This is misleading. Postfix is not 5 times slower, your benchmark
appears to be measuring the LMTP delivery rate to a single sink
