On Wed, Jan 18, 2012 at 09:03:18PM +0200, Timo Sirainen wrote: > > > > I think the way I originally planned LMTP proxying to work is simply too > > complex to work reliably, perhaps even if the code was bug-free. So > > instead of reading+writing DATA at the same time, this patch changes the > > DATA to be first read into memory or temp file, and then from there read > > and sent to the LMTP backends: > > > > http://hg.dovecot.org/dovecot-2.1/raw-rev/51d87deb5c26 > > > > ----8<----8<----8<-----8<-----8<-----8<----8<-----8<----8<----8<-- > > > > unfortunately I haven't tested that patch, so I have no idea if it > > fixed the issues or not... > > I'm not sure if that patch is useful or not. The important patch to fix it is > http://hg.dovecot.org/dovecot-2.0/rev/71084b799a6c
I now implemented this patch on our directors, and pointed postfix at them. No problem seen so far, but I'm still a bit uncertain about the LMTP_PROXY_DATA_INPUT_TIMEOUT_MSECS. I know we're experienceing quite large delays when fsync'ing (slow IMAP APPEND). Do you think increasing LMTP_PROXY_DATA_INPUT_TIMEOUT_MSECS is a sensible workaround if we start seeing lmtp_proxy_output_timeout problems again ? -jf
