Mike,
Multiple instances on a single host are not supported, and I wouldn't
recommend trying it. There are significant risks to stability and data
integrity. I believe the overall effect would be increased complexity,
not simplicity.
Maintaining multiple modules databases is fairly simple, though. You can
give them different names, and set the app-server configurations
appropriately: modules-app1, modules-app2, etc. It's very rare that any
of your XQuery code will actually refer to a modules database by name,
but you can audit for that.
But you might also be ok with a single modules database, and multiple
roots. Each application could have its own root, plus a webdav server
tied to that root, for module updates: app1/, app2/, etc.
I would try to avoid having multiple security databases, as well. If you
use XQSync to copy content from, say, a windows content database to a
linux content database, XQSync will transfer any document permissions by
role name. These role names must exist in the target system's Security
database.
http://developer.marklogic.com/svn/xqsync/trunk/README.html
So if your role names do not overlap, then you may be ok with a single
Security database. If they do overlap, you'll need to introduce some
sort of domaining into your role names - perhaps "app-name.role-name"?
That can be done before running XQSync.
thanks,
-- Mike
On 2009-02-05 09:06, Mike Bowers wrote:
Can we run multiple instances of MarkLogic on the same server?
We are running MarkLogic on Windows and on Linux. We would like to consolidate
servers. Rather than creating multiple security and modules databases within
the same instance of MarkLogic, we would prefer the simplicity of having
multiple instances of MarkLogic run on the same server.
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