[Date Prev][Date Next] [Chronological] [Thread] [Top]

Re: Delete operation is delayed...

back-ndb is for mysql?

so you're suggesting that I mirror the data using a mysql cluster and just build multiple frontend servers to run slapd, all connecting to the same mysql backend database?


On Jul 9, 2009, at 1:16 PM, Quanah Gibson-Mount wrote:

--On Thursday, July 09, 2009 1:09 PM -0400 Rex Roof <rex@wccnet.edu> wrote:

How are we supposed to be setting up OpenLDAP servers so that we can have failover? I want to have a half-dozen OpenLDAP machines and have any one of them accept writes and not be relying on any one of them to be up for
writes to occur.  I've asked this question numerous times and haven't
ever gotten a reliable answer. It is starting to get really annoying.

Well, welcome to the world of distributed systems.  You probably want
back-ndb once a few of its indexing quirks have been worked out, since that uses multiple slapd instances to frontend a single mysql cluster database. You could of course, use mirror mode and chaining as an alternative. But
in any sort of distributed system like MMR, changes get delayed.



Quanah Gibson-Mount
Principal Software Engineer
Zimbra, Inc
Zimbra ::  the leader in open source messaging and collaboration