Hi,

Olivier Nicole on@cs.ait.ac.th writes:

Hi,

After a reboot this morning I had the error:

Jun 23 06:47:47 ldap slapd[512]: @(#) $OpenLDAP: slapd 2.3.40 (Jan 29 2008 12:27:46) $ root@fbsd35.cs.ait.ac.th:/usr/ports/net/openldap23-server/work/openldap-2.3.40/servers/slapd Jun 23 06:47:49 ldap slapd[522]: bdb_db_open: Database cannot be opened, err 22. Restore from backup! Jun 23 06:47:49 ldap slapd[522]: bdb(dc=cs,dc=ait,dc=ac,dc=th): DB_ENV->lock_id_free interface requires an environment configured for the locking subsystem Jun 23 06:47:49 ldap slapd[522]: bdb(dc=cs,dc=ait,dc=ac,dc=th): txn_checkpoint interface requires an environment configured for the transaction subsystem Jun 23 06:47:49 ldap slapd[522]: bdb_db_close: txn_checkpoint failed: Invalid argument (22) Jun 23 06:47:49 ldap slapd[522]: backend_startup_one: bi_db_open failed! (22) Jun 23 06:47:49 ldap slapd[522]: bdb_db_close: alock_close failed Jun 23 06:47:49 ldap slapd[522]: slapd stopped. Jun 23 06:47:49 ldap slapd[522]: connections_destroy: nothing to destroy.

Yesterday I think I cleanly halted the LDAP server before the UPS ran out of battery (major power failure). This morning when I restarted the machine I find the above error.

1. What could cause this error?

slapd is trying to read the transaction logs in order to recover the database, but for some unknown reason the wrong libdb has been linked. Check your BerkeleyDB versions and libraries.

2. How to do clean and regular backups?

On start sladp recovers unclean shutdowns, if you need backups for security reason, just slapcat the database, delete all *.bdb files and slapadd backup.ldif file.

-Dieter