Appeal No. 1997-3429
Application 08/307,212
(emphasis added). That is, when the subordinate is
coordinating "read-only" resources (resources that are not
modifiable by a transaction), there is no dynamic
registration and no message should be sent in response to
the "Prepare" message to cause registration.
Once the subordinate in Lampson is registered as
"read-only," no "commit" or "abort" message is sent to that
subordinate. This is contrary to the limitation of "sending
a [sic] transaction messages from superior coordinators only
to registered, directly subordinate coordinators, thereby
reducing message traffic" because the "read-only"
subordinate has registered according to the Examiner's
interpretation and yet is not sent any messages. While the
result in Lampson is similar to the disclosed invention in
that "read-only" subordinates are not sent certain messages,
the claimed protocol is different. There is no need for the
coordinator to keep track of "read-only" subordinates in the
claimed method because "read-only" subordinates are never
registered.
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