Checkpoint-free in log mining for distributed information sharing
    1.
    发明授权
    Checkpoint-free in log mining for distributed information sharing 有权
    日志挖掘中使用无检查点进行分布式信息共享

    公开(公告)号:US09009104B2

    公开(公告)日:2015-04-14

    申请号:US12853991

    申请日:2010-08-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: Techniques for replicating data between database systems without taking checkpoints are provided. In an embodiment, a capture process restarts. Upon restarting, the capture process reestablishes an association with an apply process. A particular logical time maintained by the apply process is then communicated to the capture process. Upon receiving the particular logical time, the capture process restarts mining from this particular logical time.

    摘要翻译: 提供了在不使用检查点的情况下在数据库系统之间复制数据的技术。 在一个实施例中,捕获过程重新启动。 重新启动后,捕获进程重新建立与应用进程的关联。 然后将应用过程维护的特定逻辑时间传达给捕获进程。 在接收到特定的逻辑时间之后,捕获过程从该特定逻辑时间重新启动挖掘。

    Checkpoint-Free In Log Mining For Distributed Information Sharing
    2.
    发明申请
    Checkpoint-Free In Log Mining For Distributed Information Sharing 有权
    用于分布式信息共享的日志挖掘中的Checkpoint-Free

    公开(公告)号:US20110010392A1

    公开(公告)日:2011-01-13

    申请号:US12853991

    申请日:2010-08-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: Techniques for replicating data between database systems without taking checkpoints are provided. In an embodiment, a capture process restarts. Upon restarting, the capture process reestablishes an association with an apply process. A particular logical time maintained by the apply process is then communicated to the capture process. Upon receiving the particular logical time, the capture process restarts mining from this particular logical time.

    摘要翻译: 提供了在不使用检查点的情况下在数据库系统之间复制数据的技术。 在一个实施例中,捕获过程重新启动。 重新启动后,捕获进程重新建立与应用进程的关联。 然后将应用过程维护的特定逻辑时间传达给捕获进程。 在接收到特定的逻辑时间之后,捕获过程从该特定逻辑时间重新启动挖掘。

    CHECKPOINT-FREE IN LOG MINING FOR DISTRIBUTED INFORMATION SHARING
    3.
    发明申请
    CHECKPOINT-FREE IN LOG MINING FOR DISTRIBUTED INFORMATION SHARING 有权
    在分发信息共享的日志挖掘中检查点

    公开(公告)号:US20090037494A1

    公开(公告)日:2009-02-05

    申请号:US11831447

    申请日:2007-07-31

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: A checkpoint free log mining mechanism comprising a capture process and an apply process that are logically associated with each other may be provided in a database system. In an embodiment, log mining information published by the capture process to the apply process comprises a complete set of log information for each interesting transaction. A system change number of a start transaction record of a transaction may be used to represent a start time of the entire transaction. The capture and apply processes may work cooperatively to establish a safe time point in the form of a particular system change number in logs to begin mining, under various circumstances such as in an initial startup state, in a steady state, in a process restart scenario in the middle of checkpoint free log mining, or in a transition between the checkpoint mode and the checkpoint free mode.

    摘要翻译: 可以在数据库系统中提供包括彼此逻辑地相关联的捕获进程和应用进程的无检查点日志挖掘机制。 在一个实施例中,由捕获过程发布到应用过程的日志挖掘信息包括用于每个有趣事务的一整套日志信息。 可以使用事务的开始事务记录的系统改变号来表示整个事务的开始时间。 捕获和应用过程可以协同工作,以在日志中的特定系统改变号的形式建立安全时间点,以在稳定状态的各种情况下,在过程重启场景中开始挖掘 在检查点免费日志挖掘中,或在检查点模式和检查点自由模式之间的转换。

    Checkpoint-free in log mining for distributed information sharing
    4.
    发明授权
    Checkpoint-free in log mining for distributed information sharing 有权
    日志挖掘中使用无检查点进行分布式信息共享

    公开(公告)号:US07801852B2

    公开(公告)日:2010-09-21

    申请号:US11831447

    申请日:2007-07-31

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30368

    摘要: A checkpoint free log mining mechanism comprising a capture process and an apply process that are logically associated with each other may be provided in a database system. In an embodiment, log mining information published by the capture process to the apply process comprises a complete set of log information for each interesting transaction. A system change number of a start transaction record of a transaction may be used to represent a start time of the entire transaction. The capture and apply processes may work cooperatively to establish a safe time point in the form of a particular system change number in logs to begin mining, under various circumstances such as in an initial startup state, in a steady state, in a process restart scenario in the middle of checkpoint free log mining, or in a transition between the checkpoint mode and the checkpoint free mode.

    摘要翻译: 可以在数据库系统中提供包括彼此逻辑地相关联的捕获进程和应用进程的无检查点日志挖掘机制。 在一个实施例中,由捕获过程发布到应用过程的日志挖掘信息包括用于每个有趣事务的一整套日志信息。 可以使用事务的开始事务记录的系统改变号来表示整个事务的开始时间。 捕获和应用过程可以协同工作,以在日志中的特定系统改变号的形式建立安全时间点,以在稳定状态的各种情况下,在过程重启场景中开始挖掘 在检查点免费日志挖掘中,或在检查点模式和检查点自由模式之间的转换。