Wojtek Sylwestrzak wrote:
> this is a little controversial when the protocol used to provide
> the service on a replica is the same as the one used to perform
> the actual copying.
Not really.
The difference then is what you copy, and how.
Mirroring: Sheduled copy of the data output.
Caching: On-demand copying of the protocol output.
In HTTP this translates to that a mirror only copies the data content,
while a cache also mirrors part or all of the protocol headers
(content-type,...) on a per object basis.
A cache also typically copies information on demand, while a mirror is a
sheduled (or syncronised) update of information.
-- Henrik Nordstrom
This archive was generated by hypermail 2b29 : Thu Nov 18 2004 - 11:21:26 MST