Upstart startup not worked with ldap backend

When i use ldap database as backend (slapd) standart upstart script does not working on startup.
Dhcp daemon tried launch early than slapd daemon. In log:

Dec 19 16:51:28 dhcpd: Internet Systems Consortium DHCP Server 4.1-ESV-R4
Dec 19 16:51:28 dhcpd: Copyright 2004-2011 Internet Systems Consortium.
Dec 19 16:51:28 dhcpd: All rights reserved.
Dec 19 16:51:28 dhcpd: For info, please visit https://www.isc.org/software/dhcp/
Dec 19 16:51:28 dhcpd: Error: Cannot login into ldap server localhost:389: Can't contact LDAP server
Dec 19 16:51:28 dhcpd: Configuration file errors encountered -- exiting
Dec 19 16:51:28 CGRE[3753]: Started the CGroup Rules Engine Daemon.
Dec 19 16:51:29 slapd[3770]: bdb_db_open: warning - no DB_CONFIG file found in directory /place/ldap: (2).#012Expect poor performance for suffix "dc=test,dc=ru".

Distribution:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.3 LTS"