[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: Index corruption

The latest version (2.0.23) fixes the known indexes corruption problem,
and DB4 is only required from release 2.1.* onwards.


On Tue, 12 Mar 2002, Jan-Michael Ong wrote:

> Christine,
> I have experienced this problem under Solaris 2.7 using DB-3.2.9 and
> Openldap 2.0.11. The index would always get corrupted and there will be
> missing entries and "cached" entries or entries that you remove and ldap
> logs that the entries are removed but they still appear in your searches.
> Unfortunately the only option I had was to upgrade to Openldap-2.0.18 and
> DB-3.3 and that solved the problem. Check the DB version you're using. I'm
> not sure if 2.0.22 requires DB4 but you may considering downgrading on a
> development ldap server and see how well that works. Also run in against a
> battery of adds/deletes using a looping shell/perl script and shut down
> your ldap server every so often. At least that's what I did when I was
> trying to get this to work. Finally you may consider searching the old ldap
> messages because I think I reposted my "solution" (there was none ... other
> than to upgrade)
> Hope that helps.
> jm
> At 01:22 PM 3/12/2002 +1100, you wrote:
> >Hi all,
> >
> >We are running 2.0.22 under FreeBSD 4.5.  This morning my
> >indexes got corrupted in an interesting manner, so that
> >the directory believed it had a record which didn't actually
> >exist.
> >
> >I found one other case rather like it in the archives, but
> >no real explanation.
> >
> >I tried to add a very simple posixAccount record:
> >
> >dn: uid=chris3,dc=au,dc=cordoors,dc=com
> >objectClass: posixAccount
> >uidNumber: 1946
> >gidNumber: 400
> >homeDirectory: /usr/users/chris
> >loginShell: /bin/tcsh
> >gecos: Chris Robertson
> >cn: Chris Robertson
> >uid: chris3
> >userPassword: x
> >
> >and the add failed with a "record already exists" message.
> >Tried to delete the DN, and got the following message:
> >
> >  Delete Result: Unknown error (80)
> >  Additional info: DN index delete failed
> >
> >I tried adding a similar record with uid=chris4, and
> >had no problems adding it or deleting it again.
> >
> >I dumped the directory with slapcat, and the uid=chris3
> >record definitely didn't exist.  I shut down slapd
> >and re-made the indexes; no change.  I physically
> >removed the indexes and re-made them; no change.
> >I deleteled almost every record from the directory and
> >re-made the indexes; no change.
> >
> >The only thing that worked was removing the whole damn
> >directory and re-creating it from scratch with slapadd.
> >
> >Can anyone shed any light on this?  I'm not aware of
> >anything out of the ordinary happening around the time
> >the indexes got munched.
> >
> >--Chris Robertson
> >Corinthian Engineering