[Dovecot] dovecot: auth(default): LDAP: ldap_result() failed: Can't contact LDAP server

[Timo Sirainen]

On Mon, 2007-12-24 at 10:45 +0100, Rolf E. Sonneveld wrote:
> Dec 24 07:20:00 hostname dovecot: auth(default): LDAP: ldap_result() 
> failed: Can't contact LDAP server
..
> I've looked through the archives and it seems that this problem is 
> caused by the fact that Dovecot (using the OpenLDAP client libraries?) 
> keeps the LDAP connection open; after (in our case) 15 minutes Active 
> Directory closes the connection and Dovecot signals this in the syslog 
> (and presumably automatically will create a new connection to AD).
> 
> I'm pretty sure that the OpenLDAP client libraries provide options to 
> use a client-side timeout for LDAP connections. My questions are:
> 
>     * is there a reason that Dovecot wants to keep the LDAP connection open?

If there are no timeouts, there's not much point in wasting time and
reconnecting for no reason.

>     * Will the new V1.1 version have a config parameter to set the LDAP
>       client timeout or a default timeout value to close the connection?

No.

>     * If there's no 'fix' foreseen for V1.1, I'd like to file a request
>       to add such a parameter. How can I file such a request?

How about this: http://hg.dovecot.org/dovecot/rev/ae0556fb268d

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