[Dovecot] POP3 error

[Thierry de Montaudry]

On 07 Mar 2011, at 12:01, Timo Sirainen wrote:

> On 7.3.2011, at 11.51, Thierry de Montaudry wrote:
> 
>> Since we upgraded to 2.0.9 (from 1.10 stock CentOS release), we are getting some errors with pop3. When the machines get busy, now and then it start with the following:
>>> Mar  7 11:19:51 xxx dovecot: pop3-login: Error: net_connect_unix(pop3) failed: Resource temporarily unavailable
>> And it generates hundreds of those before the machines dies, with the web server getting stuck as well on imap sessions, even though there is no imap error messages.
> 
> Do you see any warning messages in logs containing "client connections are being dropped"?
> 
I did not see it on any machines. But for this specific one, I got the following after those errors, before restarting dovecot:

Mar  7 11:20:09 web4 dovecot: pop3(x at y): Error: net_connect_unix(/var/run/dovecot/dict) failed: Connection refused
Mar  7 11:20:11 web4 dovecot: pop3-login: Error: read(pop3) failed: Connection reset by peer
Mar  7 11:20:11 web4 dovecot: pop3-login: Error: read(pop3) failed: Connection reset by peer
Mar  7 11:20:11 web4 dovecot: pop3-login: Error: read(pop3) failed: Connection reset by peer
Mar  7 11:20:11 web4 dovecot: pop3-login: Error: read(pop3) failed: Connection reset by peer