<quote who="Bruno Lezoray EMSM"> > Gavin Henry wrote: >> <quote who="Bruno Lezoray EMSM"> >> >>> Hi all, >>> >>> i have a request from a customer about 2 replication architectures and >>> i >>> would like to know if it's possible to implement them: >>> 1 - Master Server -> "hub" Server -> Slave Server >>> >> >> Expand on what you mean by "hub"? >> >> > Hub comes from Sun Directory Server terminology which means a read-only > server that receives/get updates to/from a master and send updates to a > slave
Ah, a proxy. In our case that would be pushed based Syncrepl (slapd-ldap(8) and Syncrepl in refreshAndPersist mode). >>> 2 - Server1 <-> Server2 <-> Server 3 >>> >> >> This looks like Multi-Master? >> >> > Yes, except that Server1 isn't directly synchronized with Server3 >>> An other question: >>> Is the replication with slurpd or SyncREPL supported over WAN ? >>> >> >> Yes, but please try to use Syncrepl over slurpd >> >> >>> Are there some restrictions ? >>> >> >> Firewall/routing etc. Depends what you have setup/require. >> > Of course, these points must be configured correctly but, i supposed > typically latency issues due to the distance or connection closed by a > firewall due to inactivity. >> Gavin. >> >> >>> Rgds, Bruno. >>> >>> >>> >> >> > >
