Method and system for high-performance affair modification in copying surroundings of database system
A high-performance, database technology, applied to the high-performance modification transaction and system field in the replication environment of the database system
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[0022] The method of the present invention still uses the transaction log propagation from the master to the slave, combined below Figure 1 to Figure 3 Describe in detail the flow of the system when processing update and query requests. Such as figure 1 As shown, when the master receives a request from the client to modify the entry E, the master dispatches a transaction T to modify the entry E. Then, the master propagates the log of transaction T to other replicas and waits for replies from other replica nodes. Finally, the client is notified whether the modification is successful or not according to the transaction result modified by the master.
[0023] Such as figure 2 As shown in , when the slave receives the transaction log from the master, the slave first looks for the "out-of-sync object" bucket to determine whether there is an entry affected by the transaction in the bucket. If the entry is in the storage segment, set the result of the update transaction to fail...
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