Re: OpenLdap unstable on RHEL5 & Centos5 with db4

[Tony Earnshaw <tonni@hetnet.nl>]

Rohit B skrev, on 22-02-2008 06:18:

> Thanks, i downloaded RPMS from the link you send me but if i remove the 
> original RPMS i have a lot of dependencies one of them is postfix. It 
> gives libldap errors. So what i did was i recompiled postifx on a system 
> having the new ldap rpms installed and used that postfix rpm on my 
> setup. This solved the issue. I had to make changed in the DB_CONFIG 
> file to match the cache size suited to my systems memory and also copied 
> the same file to some of the application which need the DB4 library like 
> /var/imap/db .This solved 99% of my problems.

You went about it one of the ways possible; however, installing Buchan's 
rpms will mean that they exist *parallel* to Red Hat's, so Red Hat's 
offerings don't have to be removed. I'm guessing that their are 
dependencies to  the Red Hat client stuff and  keeping these will 
obviate the remaining 1% of your problem. In fact, I have exactly the 
same on one of the RHEL5 servers on my site, where I can't use Buchan's 
client rpm and have to use Red Hat's.

OT: I hope you discovered Simon J. Mudd's Postfix srpm, since it enables 
you to upgrade Postfix to latest stable (d.d. 2.5.1)

Best,

--Tonni
--

> Tony Earnshaw wrote:
> > Rohit B skrev, on 19-02-2008 08:21:
> >
> > > I am running Openldap and db4
> > >
> > > [root@build ~]# slapd -V
> > > @(#) $OpenLDAP: slapd 2.3.27 (Mar 14 2007 17:44:50) $
> > >        
> > > mockbuild@builder4.centos.org:/builddir/build/BUILD/openldap-2.3.27/openldap-2.3.27/build-servers/servers/slapd 
> > >
> > >
> > > DB4 vcersion      db4-4.3.29-9
> > >
> > > We have a address book containing around 500 to 2000 addresses stored 
> > > in it. Every thing works fine for some days and then it crashes. I 
> > > see nothing in the logs. We are using a custom schema attached with 
> > > this email. Before we upgraded from the default openldap in centos4.4 
> > > to Centos5.0 it was working perfectly, is there any compatibility 
> > > issues with the schema & the new package.
> >
> > Indeed; this is Red Hat's version of OpenLDAP which is basically 
> > unstable and runs a deprecated db4 version. Believe me you are not the 
> > first person to experience this and you will not be the last. 
> > Moreover, however many backports Red Hat / CentOS will do of it in the 
> > future it can, by definition, never get any better.
> >
> >  I'm a RHEL5 sysadmin and this is not a new matter for Red Hat sysadmins.
> >
> > Install the packages at 
> > http://staff.telkomsa.net/packages/rhel5/openldap/ and you'll be set 
> > to go.
> >
> > Best,
> >
> > --Tonni


--
Tony Earnshaw
Email: tonni at hetnet dot nl