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Database corruption revisited.
In an email of 5 August 2009 Howard Chu says "If your disks are working
and haven't run out of space, database corruption pretty much never
happens. You probably should describe the situation that leads you to
believe there was a corruption. You should also list the versions of
software in use."
We have been plagued over the years with instances where the database
appears to have been corrupted. I'm quite happy to be proved wrong, and
would be pleased, very pleased to find a solution. As I said this has
happened over the years, on ancient Debian systems, through RedHat's
RHEL3, RHEL4, and maybe RHEL5. I'm not sure of the last. Every three or
four months the application that uses OpenLDAP stops responding. We then
run 'slapcat' against the LDAP datastore and if it hangs we stop
slapd, run a recovery on the BDB and start everything up again. Now and
then slapd refuses to start and we have to restore from a backup (also
taken by slapcat).
As I said, this has happened on many versions of OpenLDAP and on
different operating systems. The latest version that I am sure it has
happened on is RHEL 4.2 and OpenLDAP 2.2.13-4 (I think that is the
version - I'm not able to access the servers at present so I'm going by
memory).
I'd be very pleased, ecstatic even, to find a solution to this. It's
been a thorn in my side for many years. What information would be useful
in pointing me at a solution? I'd only add that I am not an LDAP or
OpenLDAP expert - the systems only get touched when an upgrade is
necessary. Any advice would be appreciated.
Cheers, hoping for a solution, or at least pointers to one.
Cliff