System and method for incremental change synchronization between multiple copies of data
    1.
    发明授权
    System and method for incremental change synchronization between multiple copies of data 失效
    用于数据副本之间增量更改同步的系统和方法

    公开(公告)号:US06202085B1

    公开(公告)日:2001-03-13

    申请号:US08758739

    申请日:1996-12-06

    IPC分类号: G06F946

    CPC分类号: G06F17/30008

    摘要: A system and method for incremental change synchronization among multiple copies of data is disclosed. To achieve the synchronization a genera synchronization model is used. The synchronization model establishes a one-way data flow path to allow incremental changes to be transferred from a copy of data that incorporates the incremental changes to a copy of data that does not yet incorporate the incremental changes. To achieve this one-way data flow path, the synchronization model uses an agent, a data collector, and a data synchronizer. The data collector collects incremental changes transferred to it and applies the incremental changes to a copy of data. A data synchronizer transfers incremental changes to a data collector. An agent controls the synchronization process by making a connection between a data collector and a data synchronizer and then directing the data synchronizer to transfer data to the data collector. If bidirectional data flow is necessary to achieve synchronization between two copies of data, a one-way data flow path is established first in one direction and after all incremental changes have been passed in that direction, a data flow path is established in the opposite direction to pass incremental changes in the opposite direction.

    摘要翻译: 公开了一种用于在多个数据副本之间进行增量改变同步的系统和方法。 为了实现同步,使用一个同步模型。 同步模型建立一个单向数据流路径,以允许将增量更改从包含增量更改的数据副本传输到尚未纳入增量更改的数据副本。 为了实现该单向数据流路径,同步模型使用代理,数据收集器和数据同步器。 数据收集器收集传递给它的增量更改,并将增量更改应用于数据副本。 数据同步器将增量更改传输到数据收集器。 代理通过在数据收集器和数据同步器之间进行连接来控制同步过程,然后指导数据同步器将数据传送到数据收集器。 如果需要双向数据流来实现两个数据副本之间的同步,则在一个方向上首先建立单向数据流路径,并且在所有增量更改已经沿该方向通过之后,沿相反方向建立数据流路径 在相反的方向传递增量变化。