Michael Sims wrote:
> Hi Dave,
>
> Dave McMurtrie wrote:
>> As of Cyrus 2.3, the code supports the notion of application-level
>> replication. It's near real-time replication of all the application
>> data, but one copy of the data isn't live. This is more of an
>> active/passive solution, since
Michael Sims wrote:
Quick question on this. If I setup an active/passive cluster and put the
mail spool AND all of the application data on a SAN that both nodes have
access to (not simultaneously, of course), doesn't that bypass the need for
using "mupdate_config: replicated"? Thanks...
Th
Hi Dave,
Dave McMurtrie wrote:
> As of Cyrus 2.3, the code supports the notion of application-level
> replication. It's near real-time replication of all the application
> data, but one copy of the data isn't live. This is more of an
> active/passive solution, since you have to do something to m
Michael Sims wrote:
> Overall, my general feeling is that active/active is still a bit too
> bleeding edge for me to recommend it to my boss.
Bleeding edge? VMS had this figured out ages ago :)
> I know that it has been
> done, but it seems to be relatively uncommon. I might try to toy around
Hi Dave,
Thanks for taking the time to respond.
Dave McMurtrie wrote:
> When I worked at the University of Pittsburgh, we set up a 4-node,
> active/active Cyrus IMAP cluster. It ran on Sun v440 servers running
> Solaris 8 using Veritas Cluster Filesystem. If you need additional
> details about
Dave McMurtrie wrote:
> Though I have no experience with it, I seem to recall that someone
> attempted to use GFS with an active/active Cyrus cluster and it was a
> disaster. It was mentioned either on info-cyrus or in the Cyrus wiki.
> If google doesn't help you find this, I can try to rememb
Michael Sims wrote:
...snipped...
> So, here are my questions for anyone who can help me:
>
> (1) Is the goal of implementing an active/active Cyrus cluster using shared
> storage and a shared file system a realistic one?
Yes. It has been done successfully.
> (2) If so, what recommendations d
