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Method of optimizing propagation of non-persistent messages from a source database management system to a destination database management system
Method of optimizing propagation of non-persistent messages from a source database management system to a destination database management system
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机译:优化非持久消息从源数据库管理系统到目标数据库管理系统的传播的方法
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摘要
A method of optimizing propagation of non-persistent messages from a source database management system (DBMS) to a destination database management system (DBMS) is described and provided. The method comprises receiving one or more non-persistent messages from a source non-persistent message queue of the source DBMS at a destination non-persistent message queue of the destination DBMS. The non-persistent messages are consumed from the destination non-persistent message queue such that consumed non-persistent messages are removed from the destination non-persistent message queue. Further, at least a portion of the non-persistent messages are spilled from the destination non-persistent message queue to a destination persistent message queue of the destination DBMS based on at least one parameter selected from a group consisting of a sparseness factor, number of non-persistent messages in the destination non-persistent message queue, and amount of memory resources utilized by the destination non-persistent message queue. Moreover, to the source DBMS is sent an acknowledgment including a watermark indication of consumed non-persistent messages from the destination non-persistent message queue. Spilled non-persistent messages are characterized as consumed.
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