[CentOS] centos + ldap + syncrepl (push vs pull)

Craig White craigwhite at azapple.com
Thu Apr 1 19:04:46 UTC 2010


slurpd is a push technology and yes, I have multiple 'slaves' on slurpd.

Craig

On Thu, 2010-04-01 at 11:50 -0700, aurfalien at gmail.com wrote:
> Thanks Craig,
> 
> Do you have multiple secondary LDAPs using slurpd?
> 
> Its is pushing or pulling?
> 
> I may just use that.
> 
> - Brian
> On Apr 1, 2010, at 11:15 AM, Craig White wrote:
> 
> > On Thu, 2010-04-01 at 10:36 -0700, aurfalien at gmail.com wrote:
> >> Hi,
> >>
> >> From what I gather, OpenLDAP on Centos 5.x pulls LDAP changes from
> >> central LDAP server to a secondary LDAP server.
> >>
> >> So in other words, you can have your second LDAP server pull the db
> >> based on either;
> >>
> >> type=refreshOnly
> >>
> >> which mean the pull interval will happen when ever you specify or;
> >>
> >> type=refreshAndPersist
> >>
> >> which mean after a pull, keep the pipe open for any changes made.
> >>
> >> Now in Ubuntu one can have there primary LDAP push the changes to all
> >> the secondaries.
> >>
> >> Can I somehow enable push in Centos OpenLDAP because pull seems  
> >> pretty
> >> lame in this case.
> >>
> >> I tried but to no avail.
> >>
> >> Hope the answer isn't "Son, thats just the way it iz".
> > ----
> > my reading of syncrepl matches your understanding but I'm still using
> > slurpd so what do I know.
> >
> > You should know that the philosophy of OpenLDAP software developers is
> > that if you actually want to run an OpenLDAP server using newer edge
> > features (and syncrepl is surely one of them), then you should be
> > building the latest from source and not relying on distribution  
> > packages
> > which exist mostly for providing ldap libraries for other software.
> > There was a recent discussion about this very topic because
> > Debian/Ubuntu is using a 2.4 version that is also out of date and very
> > buggy where syncrepl is concerned. Obviously CentOS is using 2.3.43
> > which is considered out of date by OpenLDAP software developers.
> >
> > Craig
> >
> >
> > -- 
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