发明名称 |
Collision avoidance in database replication systems |
摘要 |
Database replication systems replicate blocks of transaction steps or operations with synchronous replication, and perform dual writes with queuing and blocking of transactions. Tokens are used to prepare a target database for replication from a source database and to confirm the preparation. Database replication systems switch between a synchronous replication mode and an asynchronous replication mode, and then back to a synchronous replication mode, based on detection of selected events. <IMAGE> |
申请公布号 |
EP1349085(A2) |
申请公布日期 |
2003.10.01 |
申请号 |
EP20030006626 |
申请日期 |
2003.03.25 |
申请人 |
GRAVIC, INC. |
发明人 |
HOLENSTEIN, BRUCE D.;HOLENSTEIN, PAUL J.;STRICKLER, GARY E. |
分类号 |
G06F11/20;G06F13/42;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F11/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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