Cyrus 2.2.x vs 2.3

[Ken Murchison]

Etienne Goyer wrote:

> Ken Murchison wrote:
> 
>>     * Added support for "unified" and "replicated" Murders. A Murder 
>> no longer has to have discrete frontend and backend servers; any one 
>> "unified" server can both proxy and serve local mailboxes (proxy 
>> functionality in proxyd and lmtpproxyd has been merged with imapd and 
>> lmtpd respectively), or all "replicated" servers can serve the same 
>> mailboxes from a shared filesystem. The new mupdate_config option in 
>> imapd.conf is used to determine whether a Murder is using a 
>> "traditional", "unified" or "replicated" configuration.
>>     * Ported/rewrote/integrated David Carter's mailspool replication 
>> code. Development sponsored by Columbia University.
> 
> 
> These two really got me excited.  2.3 will really be an important 
> release for HA/scalability.
> 
> Could somebody expand a little about 'all "replicated" servers can serve 
> the same mailboxes from a shared filesystem' ?  Assuming a number of 
> servers serve mailboxes from a shared filesystem, there is no point in 
> Murder anymore as any server in the pool have directly access to any 
> mailbox in the shared filesystem, right ?

I would consider the "replicated" Murder code experimental at best.  I 
began writing it for a local university to use with a SAN filesystem , 
but I don't think it was ever deployed.  With David Carter's replication 
code, use a "replicated" Murder is already obsolete.

-- 
Kenneth Murchison     Oceana Matrix Ltd.
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