Parallel logging method for transaction processing system
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United States of America Patent
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Jul 27, 2004
Grant Date -
Nov 28, 2002
app pub date -
Jan 29, 2002
filing date -
May 28, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A parallel logging method for a transaction processing system for simultaneously executing transactions of a plurality of application programs is disclosed. According to the method, a transaction control section instructs transaction participants to execute a transaction preparing step and a transaction commit step in accordance with transaction end requests of the application programs that have executed transaction operations. A log queue manager receives a log write request for status information of the transactions requested from the transaction control sections. Then, a plurality of log managers simultaneously execute the log write of the corresponding transactions in parallel in accordance with a request of the log queue manager that has received the log write request. According to the method, the bottleneck phenomenon occurring during the log write of the transactions can be prevented and the time for the corresponding log write can be reduced to improve the whole performance of the transaction processing system.
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