[Dovecot] dovecot-auth leaves zombies

[Timo Sirainen]

On 5.11.2004, at 10:57, Stefano Maffulli wrote:

> 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.

Dovecot creates a new process for each PAM lookup, so it's pam_ldap 
that is being stuck for some reason.

>   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)

Looks like your LDAP server was restarted and pam_ldap couldn't 
reconnect to it for some reason.
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