发明名称 |
System for providing transaction indivisibility in a transaction processing system upon recovery from a host processor failure by monitoring source message sequencing |
摘要 |
A system and method for providing transaction indivisibility in a transaction processing system through the use of commonly-accessible modules for monitoring and maintaining proper source message sequencing is provided. A source message is transmitted from the host processing unit upon recovery of a failure of the host processing unit, where the source message includes information destined for the database, and an identifying sequence number. The identifying sequence number is compared to a stored sequence number, where the stored sequence number is associated with an immediately preceding source message received prior to the failure of the host processing unit. A source message indivisibility failure is indicated where the identifying sequence number is not consecutive with respect to the stored sequence number, while the source message is added to a message execution queue if the identifying sequence number is consecutive with respect to the stored sequence number.
|
申请公布号 |
US6161198(A) |
申请公布日期 |
2000.12.12 |
申请号 |
US19970997322 |
申请日期 |
1997.12.23 |
申请人 |
UNISYS CORPORATION |
发明人 |
HILL, MICHAEL JAMES;COOPER, THOMAS PEARSON;KONRAD, DENNIS RICHARD;NOWATZKI, THOMAS L. |
分类号 |
G06F11/14;(IPC1-7):H02H3/05 |
主分类号 |
G06F11/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|