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- Newsgroups: comp.dcom.cell-relay
- Path: sparky!uunet!portal!kyma
- From: kyma@shell.portal.com (Matt J Young)
- Subject: Transaction Processing
- Message-ID: <C1H3Au.FB@unix.portal.com>
- Sender: news@unix.portal.com
- Nntp-Posting-Host: jobe
- Organization: Portal Communications Company
- Date: Tue, 26 Jan 1993 17:59:18 GMT
- Lines: 31
-
-
- OK, here is a problem:
-
- The user has constructed a spanning tree over which is desired to
- perform distributed transaction processing.
-
- Two different asynchronous sources enter the tree from separate
- locations, each attempting to perform a transaction update on leaves
- of the tree. The first transaction reaches an internal node, splits,
- and enters two side leaves to perform the first part of a two phase
- commit. The transaction deposits its data to a local queue at the
- leaf nodes, then returns to the central node to validate the
- "conquering" process of its spawned branch. At the central node,
- the current transaction also meets with the transaction from the second
- asynchronous source.
-
- Since both branches of the first transaction, and the second transaction
- exist simultaneously at the semantic kernel internal to the spanning tree,
- all three migrating state machines access exactly the same knowledge about the
- environment. Hence, they combine into a single process, with a new task:
- finishing the commit already begun, and initiating the commit required by the
- second source. (for further information go talk to the Knowledge Theory
- group at the IBM Almaden Research Center).
-
- IBM wants to build a common semantic kernel which is transport independent.
- Why not connect the idea closely to virtual path networks? Then IBM can
- connect call control and common semantics, test it in high bandwidth
- applications, possibly allowing critical applications to move off the
- mainframe. Here is the test: Can IBM spring forth with an independent group
- and integrate these technologies? Can the IBM Research group forge ahead with
- an independent marketing effort?
-