[Dovecot] Dovecot-auth connection problem

Timo Sirainen tss at iki.fi
Wed Aug 13 01:02:52 EEST 2008


On Jul 29, 2008, at 12:20 AM, Alexey Gorbov wrote:

> I have this messages in log:
> Jul 29 00:02:56 10.0.4.16 dovecot: imap-login: Can\'t connect to  
> auth server
> at default: Resource temporarily unavailable

Has this happened more than once?

> In this way users can't connect top pop3, imap services. Dovecot  
> restart only
> help me to restore my services.

How long did it happen until you restarted?

It sounds like dovecot-auth process got stuck for some reason. If it  
happens again, you could:

1) Run strace -p `pidof dovecot-auth` for a few seconds and save the  
output (if you have multiple dovecot-auth processes, then strace the  
one which doesn't have -w parameter)

2) Run gdb -p `pidof dovecot-auth` (again the process without -w) and  
"bt full" after that.

>  passdb:
>    driver: sql
>    args: /etc/dovecot/dovecot-sql.conf

What SQL database are you using?

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