[Dovecot] returned error 89 / solved

[Robert Schetterer]

Am 14.06.2011 21:36, schrieb Robert Schetterer:
> Am 14.06.2011 21:24, schrieb Robert Schetterer:
>> Hi Timo, i have very rare ( ultra rare....)
>> failures like this
>> with latest dovecot 2
>>
>> log: Error: service(pop3-postlogin): child 16691 returned error 89
>> (Fatal failure)
>>
>> imap-postlogin: Error: script-login: Fatal: Internal error occurred.
>> Refer to server log for more information.
>> Jun 14 18:41:16 mail02 dovecot: log: Error: service(imap-postlogin):
>> child 31645 returned error 89 (Fatal failure)
>>
>> any idea?
>>
>> the conf i allready posted
>> with also rare lmtp error
>> uid=error
>>
>> today first an only one seen
>>
>> Error: read(/var/run/dovecot/dict) failed: Timeout after 30 seconds
>> lmtp(31698, ... at ...): Error: Internal quota calculation error
>>
> 
> speculation , error 89 seems only happen
> during a rsync full system backup job
> does this make sense ?
> perhaps i should use more excludes
> i.e for /var/run/dovecot/* ...


it was rsync, excluding
/var/run/dovecot/*
makes the failure disapear

the uid=error in lmtp got more rare
using auth cache
what i found is, that it mostly happens
on high traffic times, with mass mails
( i.e parallel mail to many subscribers of a list etc )
but i did no exact investigate about that
but there maybe some relation to sql lookups during high traffic
-- 
Best Regards

MfG Robert Schetterer

Germany/Munich/Bavaria