OpenLDAP Weekly News Issue 5

Latest "stable" OpenLDAP:

OpenLDAP 2.3.39 is now considered the most stable release.


Multi-Master Replication configuration example:

This has been asked for a few times now, so I'm putting an example here for use with OpenLDAP 2.4.6, which will then be part of the main docs

This is adapted from test050-syncrepl-multimaster

A proper writeup will be in the admin guide soon, I promise

Right, the following is all in LDIF format and you slapadd them to your cn=config on the amount of Master nodes you have/want (using slappasswd of course):

This sets up the config database:



second and third servers will have a different olcServerID obviously:



This sets up syncrepl as a provider (since these are all masters):



Now we setup the first Master Node (replace $URI1, $URI2 and $URI3 etc. with your actual ldap^[?] urls):



Now start up the Master and a consumer/s, also add the above LDIF to the first consumer, second consumer etc. It will then replicate cn=config. You now have N-Way Multimaster on the config database.

We still have to replicate the actual data, not just the config, so add to the master (all active and configured consumers/masters will pull down this config, as they are all syncing). Also, replace all ${} variables with whatever is applicable to your setup:



That's the quick version, more in the admin guide later....

Note: You must have all your server set to the same time via ntp

Please add comments to this post or start a thread on The OpenLDAP Project lists if you have problems (see support section below).


Update on Build Farm:

Kurt tells me the kit has arrived and there is money to spare due to big discounts. The OpenLDAP Project will either put that towards getting another server or stick more RAM in the existing one.

As soon as access is sorted out The OpenLDAP Project can begin to setup the build farm.

More later....


Contributions:

Howard adds Ordered indexing for integers. Very handy.

The OpenLDAP Project still have a few things left in the queue to get a proper review.


OpenLDAP Documentation updates:

Well, my plan to get the MMR docs done failed, as I got bogged down with normal work and a lot of OpenLDAP sales work with our partners.

I did however extend the MMR test, which means I kind of know MMR inside out


OpenLDAP Development:

The core team and engineering team have been busy as usual.

The OpenLDAP Project are currently closing out bugs and pushing towards a 2.4.7 release, hopefully this week.

As already discussed, Howard adds ordered indexing for integers, follow the discussion.

I try to start discussions on a new Roadmap. Seems it's a bit early, and I point out what docs I need help with.

I also ask about next years OpenLDAP Developers Day, with no answers yet.


Selected user issues and solutions discussed:

Lots this week.

In and around the community:

• someone gives up on Sun and moves to OpenLDAP


• Troubles with AD^[?], come over to OpenLDAP!


• Zimbra upgrade kills OpenLDAP


• LDAP^[?] authentication w/ OpenLDAP server on Linux

Hopefully this weeks snippet on MMR will help users and save the many questions The OpenLDAP Project gets.


Contribute:

If you have any interesting OpenLDAP stories or spot anything in the Open Source community related to OpenLDAP, drop me a line at ghenry at suretecsystems dot com


Support:

As usual, if you have questions or problems please contact The OpenLDAP Project via normal channels.

Thanks,

Gavin.