Well I have been running nginx infront of dbmail since 20 December 2013 and I am also still running my script which connects to dbmail directly (i.e. not nginx), sends a logout and restarts dbmail if the response does not include a ok. The same scripts checks for 100% cpu usage and restarts dbmail if that is the case.
I have to admit I have not noticed any real difference in the number of times that dbmail is being restarted by this script since using nginx. Yesterday it was 3 times around 1900, today is has been 6 times around 00:00 and then 06:00. What I can say is that it is extremely rare for the 100% cpu test to be the reason for the restart, it is almost exclusively the failed response to a logout The perception of users seems to be an improved service though and nginx may well be looking after their connections better, but then again there are a lot of people only just awaking from slumber after the Christmas/New Year period. Daniel Schütze On 20-12-13 17:35, Daniel Schütze wrote: > Paul > > I may still not have it configured perfectly but it is working right now and > the log entries are still showing 0.0.0.0 > > 2013/12/20 16:23:01 [info] 177#0: *4224 client logged in, client: IP, > server: 0.0.0.0:993, login: USER, upstream: 192.168.0.1:10143 > 2013/12/20 16:23:02 [info] 177#0: *4224 proxied session done, client: IP, > server: 0.0.0.0:993, login: USER, upstream: 192.168.0.1:10143 > > When I sniff the script response I get the following headers which look > fine. > > Auth-Status: OK > Auth-Server: 192.168.0.1 > Auth-Port: 10143 > > I also found I had to adjust the imap_capabilities to imap_capabilities > IMAP4rev1 UIDPLUS IDLE LITERAL+ QUOTA; as per the documentation to prevent > my outlook client timing out every 30-60 seconds. That would be the IDLE response. LITERAL+ and UIDPLUS is only available in dbmail's master branch. ------------------------ CWA International Balmoral House 9 John Street London WC1N 2ES (t) + 44 (0)20 7242 8444 (e) d...@cwa.uk.com (w) http://www.cwa.uk.com/
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