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Multi-Master Question when network partition
- To: "openldap-technical@openldap.org" <openldap-technical@openldap.org>
- Subject: Multi-Master Question when network partition
- From: Tony Dong <leftwin@gmail.com>
- Date: Thu, 28 Apr 2011 17:57:40 +0800
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> Hi,
>
> In OpenLDAP 2.4 admin guide "chapter 18: Replication" 18.2.2.3. Arguments against Multi-Master replication:
>
> If a network is partitioned and multiple clients start writing to each of the "masters" then reconciliation will be a pain; it may be best to simply deny writes to the clients that are partitioned from the single provider.
>
> How to configure to deny writes in a LDAP master?
>
> My environment is 3-way MMR, of A, B, C three servers. If connection between server A and server B is lost, how can server A and B automatically deny writes and become read-only? As server C can still accept write operations, and sync with both server A and B, so data in server A and B is up-to-date and thus can act as slaves temporarily.
>
>
> Best Regards,
> Tony Dong
>
>
>