[Fedora-directory-users] Failover between masters

[Coe, Colin C. (Unix Engineer)]

See inline comments

> 
> Coe, Colin C. (Unix Engineer) wrote:
> >
> > Hi all
> >
> > We are currently using Sun's Directory server and have had some
> > problems with clients failing over to the other master if 
> one fails.  
> > The clients are a minxute of RHEL 3 WS and Solaris 8 
> (SPARC), and the 
> > Sun Directory servers are both Solars 9 (SPARC) running 
> Directory One 5.1.
> >
> > /etc/ldap.conf
> > host 1.1.1.1 2.2.2.2
> > port 636
> > ldap_version 3
> > base o=unix,dc=company,dc=com
> > scope sub
> > timelimit 5
> > bind_timelimit 3
> > ssl on
> > pam_filter objectclass=posixAccount
> > pam_login_attribute uid
> > pam_member_attribute memberUid
> > pam_password crypt
> > idle_timelimit 3600
> >
> > /etc/openldap/ldap.conf
> > BASE o=unix,dc=company,dc=com
> > HOST ldap1.company.com ldap2.company.com
> > PORT 636
> > SASL_SECPROPS "noanonymous,noplain"
> > SIZELIMIT 0
> > TIMELIMIT 0
> > DEREF never
> > TLS_CACERT      /etc/ssl/ldap/cacert.pem
> > TLS_REQCERT     demand
> >
> > We're using the bog standard nscd daemons provided by the 
> OS vendors.
> > We also use IDSync to synchronise user passwords from AD to 
> LDAP but 
> > not from LDAP to AD.
> >
> > What we're finding is if ldap1 dies for some reason, the 
> clients don't
> > failover to ldap2. 
> >
> > We don't know if the problem is client side or server side.  Would
> > Fedora Directory Server, set up in a similar manner, also 
> not failover 
> > properly?
> >
> It wouldn't make any difference.  I'm pretty sure failover is 
> a properly 
> of the client.  Are you sure you have the multiple hosts configured 
> correctly in your ldap.conf files?

No, I'm not 100% sure that the clients are set right.  My sanitised
/etc/ldap and /etc/openldap/ldap.conf are shown above.  Can you suggest
any improvements to them?

> >
> > While we're prepared to look at Fed DS, there is a feeling 
> that it too
> > will behave in the same manner, given they are both forks 
> of the same 
> > project.
> >
> > Comments?
> >
> > Thanks
> >
> > CC
> >

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