[Dovecot] Re: dovecot-auth leaves zombies

[Stefano Maffulli]

I forgot to add the ps fax output, related to dovecot-auth:

17684 ?        S      0:02 dovecot-auth
22169 ?        S      0:00  \_ dovecot-auth
22170 ?        Z      0:00  \_ [dovecot-auth] <defunct>


  494 ?        S      0:03 dovecot-auth
13029 ?        Z      0:00  \_ [dovecot-auth] <defunct>
13030 ?        S      0:00  \_ dovecot-auth



On Fri, 5 Nov 2004 09:57:11 +0100, Stefano Maffulli <smaffulli at gmail.com> wrote:
> Hi all,
> 
> I have installed and configured dovecot on two different machines, so
> I don't have much experience with this server.  One installation is
> giving me serious problems, that I have a hard time tracing.  From the
> beginning: the machine is a debian mix (stable/unstable) dovecot
> 0.9.11, real users authenticated via pam_ldap/nss_ldap.  It serves ~70
> users, all of them using Outlook, Outlook Express and IMP.
> 
> The system seems to work just fine for a while, but after a some time,
> some dovecot-auth zombies start appearing.  I can't really understand
> who/what is causing them.  The only thing I see in the logs are these
> lines, very sporadically, but I still couldn't trace when they
> happened.
> 
> Nov  5 09:40:28 csv-mail-01 dovecot-auth: nss_ldap: reconnecting to
> LDAP server...
> Nov  5 09:40:28 csv-mail-01 dovecot-auth: nss_ldap: reconnected to
> LDAP server after 1 attempt(s)
> 
> (BTW, also apache2 sends similar messages, I don't know if they are related)
> Nov  5 09:52:14 csv-mail-01 apache2: nss_ldap: reconnecting to LDAP server...
> Nov  5 09:52:14 csv-mail-01 apache2: nss_ldap: reconnected to LDAP
> server after 1 attempt(s)
> 
> After a while dovecot stops authenticating and needs to be killed and
> restarted (/etc/init.d/dovecot stop takes some time to actually stop
> dovecot processes).
> 
> Do you have any clue of what is going on and where I can investigate
> further?  I would like to say 'it's Outlook's fault', but I really
> can't.  Any hint appreciated.
> 
> regards
> stef
>