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Re: Corrupt LDAP DB ...
Thanks for you words of support ...
Robert Larson wrote:
If the server crash, like hangs or power failure, then I would say yes
to corrupt LDAP DB, but this is happening for no reason.
For quite some time, we seem to be getting corrupt LDAP DB. LDAP just
stops working and we can't restarted. Have done slap slapindex -v -c,
but that just hangs.
I have experienced this problem before. It was an ldap server I had running
in UML (UserModeLinux) under Gentoo. The problem was not related to openldap
at all though. I believe it was with the UML server. A crash would result
in corrupt database files that were inaccessible in the way that you
Well, wrote a few complex scripts for bash scripts, which check a few
things and then restarts LDAP in readonly mode, then do a slapcat back,
slapindex and chown ldap:ldap, chmod 600 and restart in normal mode.
So, currently, we restart all the LDAP servers in readonly mode, dump
the DB and restart LDAP in normal mode. If a server falls overs, we
rsync a readonly DB over the broke LDAP and start working again.
My hack was to create a cron job that would backup the ldap database nightly,
then I wrote a small script to rm -r /var/lib/openldap-data, slapadd <backup
file>, chown ldap -R /var/lib/openldap-data, /etc/init.d/slapd start... This
was not a production server, so I could get away with not putting effort into
With three other servers as slave, this works enough for us not too
lose any uptime or LDAP data.
My point isn't necessarily that you are not alone, but rather, the issue in my
case seemed to be resultant of the server itself crashing or causing
problems, not openldap. Perhaps these servers share similar problems
external to openldap, and the result is corrupting your databases.
Well, I have had this on my AMD system from AMD Athlon 32bit system to
my current servers of AMD 64bit system, ranging in motherboards and
memory ... And from FC2 to FC4, from OpenLDAP 2.2.13 up to 2.2.29, so I
just have not be able to put my find on the problem.
Maybe I'm just the unlucky one ... Or my options or the way pam, nss
and/or Samba is just bug nobody else has run into, but I don't think so
... So, I'm left in the dark thinking, let's go play some Frozen-Bubble
Anyway, thanks and hope somebody might understand my plight.