Saurabh, hello.

On 22 Aug 2018, at 19:25, Saurabh Lahoti wrote:

> This is a custom overlay build in 2006 by our ex team mate & he did
> the
> installation on older versions. This August we did a migration from
> old
> version to 2.4.46 & lmdb backend. Is it that we skipped some steps in
> this
> movement..?

Ah, that's _very_ relevant information.  Without knowing anything more
about your setup, that custom overlay would be the very first thing you
should look at.  There's very little a mailing list can help with,
concerning a custom overlay.

Probably the best thing you can do in the immediate term is to revert to
a backup of your previous system, presuming such a thing exists, and
that the previous system is (at least) basically working.  Then you need
to find someone who's able to look at the custom overlay code.  It might
be worth trying to work out if you can do without the overlay.

I notice that there's an ongoing list thread 'help to get our openldap
updated and replicated'.  That thread might be worth monitoring, on
general principles.

Best wishes (and good luck),

Norman


--
Norman Gray  :  https://nxg.me.uk
SUPA School of Physics and Astronomy, University of Glasgow, UK