| 摘要 |
PURPOSE:To decrease the number of messages and to improve the processing efficiency of a transaction by putting plural messages which are transferred between sites together into one message for log control over the transaction. CONSTITUTION:The transaction control part 13 of a master site 10 generates a log for every master subtransaction and holds it in a log storage part 15. A log control part 14 generates a batch inquiry message regarding >=1 transaction and sends it to a slave site 20 when logs are stored up to a specific number. An inquiry processing part 24 receives it, finishes the transaction specified in the message, and sends a specific batch answer message back to the site 10. The control part 14 receives this message and deletes the log corresponding to the answer message, transaction by transaction. Consequently, the number of messages between sites is decreased and transaction processing efficiency is improved.
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