On 6.7.2012, at 23.28, l...@airstreamcomm.net wrote: > Thanks, that certainly helps identify the configuration options. However I am > more concerned about the experiences of others who have actually used the > replication. What is the rate of change on your mail cluster, how many > concurrent users do you support with replication enabled, do you use > synchronous or asynchronous replication, are you using it in an active/active > or active/passive state, is it possible to have a cluster with multiple > servers at each site hosting the same mail data, does dysnc replication scale > well (10,000 -> 100,000 -> 1,000,000 users)? Just trying to get a good feel > for whether dsync replication is capable of handling the use case I am > proposing before investing too much time in testing it.
I wouldn't use it for large systems yet. It is still pretty inefficient. v2.2 will have a redesigned dsync that can do incremental syncs much faster and with less bandwidth. Anyway, in my small installation I'm using it in active-active mode and it works well enough. I've even configured my clients intentionally so that they use different servers.
