Thanks Andrew, Last question if you let me: What criteria is generally used for which maiolboxes will be created on what back end server ?
Thanks Diego On Mon, Mar 15, 2010 at 8:10 PM, Andrew Morgan <mor...@orst.edu> wrote: > On Mon, 15 Mar 2010, Diego Ventrice wrote: > > John, >> >> Few questions about murder if you dont mind. >> >> Does the front end server act as a load balancer, and also are back end >> server replicated exact copies ? >> >> How would it be to deploy HA with murder, on the front servers ? >> > > Frontend servers are proxy servers. They lookup the location of the user's > mailbox and proxy incoming IMAP connections to the correct backend server. > > Backend servers are not much different than a standalone, non-Murder, Cyrus > server. Each backend server registers its list of mailboxes with the > mupdate master server, which maintains a master list of the location of all > mailboxes in the Murder cluster. The frontend servers read from the mupdate > master to locate mailboxes. > > Backend servers are not fault-tolerant or highly-available. > > As far as I know, the only Cyrus method of achieving high availability is > using Cyrus replication. > > Andy >
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