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Re: hints for troubleshooting Replication problems
On Sun, 25 Jun 2006 18:37:09 -0700
Quanah Gibson-Mount <quanah@stanford.edu> wrote:
[snip]
> >> The problem is that you are using an ancient version of OpenLDAP
> >> which only had LDBM as the backend, and it is likely corrupting
> >> itself. You should really look at upgrading to a modern, supported
> >> release of OpenLDAP.
> >>
> >> --Quanah
> >
> > I agree with you that the old version of OL could be the root cause
> > of my problems. But, I need to make sure that is the case and not
> > something else. Imagine the scenario of upgrading and still have
> > the same problem.
>
> LDBM has known technical limitations. LDBM has known corruption
> issues. I don't use, and never have used, LDBM, nor would I ever
> intend to. It has been removed from the upcoming OpenLDAP 2.4
> release series because the backends that replace it (BDB & HDB) are
> stable and reliable. You can continue using your ancient version of
> OpenLDAP, and experience the problems you are having, or you can
> upgrade to a release where *if* you find any problems, you can get
> support for it. You need to understand that support for issues with
> OpenLDAP 2.0 from this list does not exist, so other than perhaps
I do understand that I am not going to get any support for this version that's
why I asked only for hints how I can troubleshoot the issue.
I believe the troubleshooting steps/guides are the same for all releases,
am I right?
If I had told you that I was using 2.3 what would you have advised me to do for troubleshooting?
I suppose there are some basic and version independent steps to do in order to get close to the
problem.
> paying some company to do that for you, the best thing to do is
> upgrade. I personally have been using slurpd replication without
> issue since OpenLDAP 2.1 (using BDB or HDB as the backend) and not
> run into any issues.
>
> I suggest reading:
>
> <http://www.openldap.org/faq/index.cgi?_highlightWords=ldbm&file=1085>
>
> and
>
> <http://www.openldap.org/faq/index.cgi?_highlightWords=ldbm&file=756>
>
> in particular.
>
> --Quanah
Thanks for links, they are quite clear and useful.
I think a good start point for me it would be to check if the backend database in the Slave or Master
is corrupted or not.
Thank you very much for your replies,
Pavlos