Re: hot backups for openldap bdb backend.

[Tony Earnshaw <tonni@billy.demon.nl>]

Peter Johnson wrote:
> Hi,
>
> I'm tring to do hot backups of my openldap server using db_archive and 
> db_recover.   Whenever I try using either of these commands I get a 'log 
> record size mismatch' error.    What am I doing wrong?  Is there a mailing 
> list for bdb?  I didn't see on on the sleepycat.com site.
>
>
> -- [oracle@server3837 openldap-reload]# 
> /usr/local/BerkeleyDB.4.1/bin/db_archive -l -P xxxxxxx -v
> db_archive: log record size mismatch
> db_archive: DB_LOGC->get: invalid log record header
> db_archive: PANIC: Input/output error
> db_archive: PANIC: DB_RUNRECOVERY: Fatal error, run database recovery
> db_archive: open: DB_RUNRECOVERY: Fatal error, run database recovery

Stop the slapd daemon and do 'db_recover -c'. You don't use db_archive 
for backup, simply for listing log files that can be backed up. Do not 
use '-l' for this. If it doesn't return anything, you can't back 
anything up. At least not the log file(s) - you can do a "hot" slapcat 
to get an ldif file that you can use to create a new database in an 
emergency.

To back up valid log files, you only need to copy/move them to another 
directory, a backup medium or whatever. You can create a complete 
database from a valid log file simply by running 'db_recover -c' on it.

--Tonni

--
Tony Earnshaw

Millom kaksar eg litet kann trivast, millom jamningar helst er eg nøgd

http://www.billy.demon.nl
Mail: tonni@billy.demon.nl