[Dovecot] Internal Error form delivery from LDAP lookup.

Jorgen Lundman lundman at lundman.net
Mon Dec 6 10:00:16 EET 2010

Timo Sirainen wrote:
> On 6.12.2010, at 7.32, Jorgen Lundman wrote:
>> Dec 06 08:46:28 deliver(rbc-004 at example.com): Error: userdb lookup(rbc-004 at example.com) failed: Internal failure
> auth process should log an error about this too?

It does? I guess we do not have that enabled. Only have these two set:

log_path = /var/log/dovecot_error.log
info_log_path = /var/log/dovecot_info.log

Perhaps you mean I should enable "auth_verbose" ? That I can do.

> This is all handled by OpenLDAP code internally. I've no idea how it works.

Ah yes, I see that you just pass "LDAP hosts" directly to ldap_init().
So it really is up to LDAP there.

> src/auth/db-ldap.h :
> /* Maximum number of pending requests before delaying new requests. */
> That's probably too large, because for v2.0 I've dropped it to 8:
> http://hg.dovecot.org/dovecot-2.0/rev/3cda9f2f48bd

Yeah, by default slapd starts 16 threads, but only half of those are allowed to 
come from the same IP.

Thanks, I will keep digging.


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