Re: syncrepl updates from consumer
John Drescher said the following on 06/03/07 18:53: syncrepl needs no updatedn, and what you report above is the expected behavior. So with syncrepl there is no way to do consumer updates? Did you happen to read the admin guide or slapd.conf(5) about sync replication? Yes, I read both several times this morning. Its definitely not the easiest documentation to read - too much detail on the protocol/design and very little info on the usage and configuration. After reading both I could not find an answer to my question. And after trying and failing I did a few google searches that led to conflicting results and more suggestions that did not work. This is something we will be addressing in ongoing documentation re-works. Thanks. Thanks, John -- Kind Regards, Gavin Henry. Managing Director. T +44 (0) 1224 279484 M +44 (0) 7930 323266 F +44 (0) 1224 824887 E [EMAIL PROTECTED] Open Source. Open Solutions.(tm) http://www.suretecsystems.com/
Re: syncrepl updates from consumer
Hi I read it also and for me it was clear it's not an active active sync...so the docu is n't so bad! Gregor
Re: syncrepl updates from consumer
[please keep replies on the list] Matt Benjamin wrote: Perangelo, Is that an accurate statement of what MirrorMode does? I had understood that only one master was _allowed to be written to_ to maintain consistency--hence the need for a load-balancer. According to recent commits and posts by Howard, mirror mode seems to allow writes to all masters under the assumption they have tightly sync'ed clocks (namely, under ntp with very low latency). See http://www.openldap.org/lists/openldap-devel/200702/msg00019.html and test050 in HEAD code. p. Ing. Pierangelo Masarati OpenLDAP Core Team SysNet s.n.c. Via Dossi, 8 - 27100 Pavia - ITALIA http://www.sys-net.it -- Office: +39.02.23998309 Mobile: +39.333.4963172 Email:[EMAIL PROTECTED] --
Re: syncrepl updates from consumer
On 3/6/07, Pierangelo Masarati [EMAIL PROTECTED] wrote: John Drescher wrote: syncrepl needs no updatedn, and what you report above is the expected behavior. So with syncrepl there is no way to do consumer updates? Did you happen to read the admin guide or slapd.conf(5) about sync replication? Yes, I read both several times this morning. Its definitely not the easiest documentation to read - too much detail on the protocol/design and very little info on the usage and configuration. After reading both I could not find an answer to my question. And after trying and failing I did a few google searches that led to conflicting results and more suggestions that did not work. In any case, with currently released code there is no way to update the consumer. One thing you can do is to add a global instance of slapo-chain which redirects writes to the producer. To the client, it will appear like updating the consumer (but updates will get to the consumer later, possibly after the client got a successful response, so immediate reads could not see the modifications in place yet). Example configuration is produced by running test007 and test018 (look at overlay chain in the consumer's slapd.conf). OpenLDAP 2.4 will allow mirror mode setups which means that multiple servers will simultaneously act as masters. But that's not released yet. Thank you, I will look into this. John
