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    • 6. 发明申请
    • OPERATOR STATE CHECKPOINTS
    • 操作员状态检查
    • US20120304003A1
    • 2012-11-29
    • US13117165
    • 2011-05-27
    • Jonathan D. GoldsteinPeter A. ZabbackBadrish Chandramouli
    • Jonathan D. GoldsteinPeter A. ZabbackBadrish Chandramouli
    • G06F11/14
    • G06F11/1438G06F11/1471
    • A checkpoint marker can be received at a first operator. The first operator can process the checkpoint marker by sending the checkpoint marker to a second operator and sending state checkpoint information representing a state of the first operator to a checkpoint writer. The checkpoint information can be used to rehydrate the state of one or more operators. For example, after a system failure, system shutdown, etc., checkpoint information can be received from a reader unit at a checkpoint information input queue of the first operator. A state of the first operator can be rehydrated using the checkpoint information. Processing of information in a data input queue of the first operator can be suspended while the checkpoint information is used to rehydrate the state of the first operator. Other operators in a system with the first operator (e.g., the second operator) may be checkpointed and rehydrated in the same manner as the first operator.
    • 可以在第一个操作员处接收检查点标记。 第一个操作员可以通过将检查点标记发送到第二个操作符来处理检查点标记,并将表示第一个操作符的状态的状态检查点信息发送到检查点编写器。 检查点信息可用于对一个或多个操作员的状态进行补水。 例如,在系统故障,系统关机等之后,可以在第一运营商的检查点信息输入队列处从读取单元接收检查点信息。 可以使用检查点信息对第一操作者的状态进行再水化。 当使用检查点信息来补充第一操作者的状态时,可以暂停处理第一操作者的数据输入队列中的信息。 具有第一操作者(例如,第二操作者)的系统中的其他操作者可以以与第一操作者相同的方式进行检查点和再水化。
    • 8. 发明授权
    • Operator state checkpoint markers and rehydration
    • 操作员状态检查点标记和补液
    • US08726076B2
    • 2014-05-13
    • US13117165
    • 2011-05-27
    • Jonathan D. GoldsteinPeter A. ZabbackBadrish Chandramouli
    • Jonathan D. GoldsteinPeter A. ZabbackBadrish Chandramouli
    • G06F11/00G06F11/16
    • G06F11/1438G06F11/1471
    • A checkpoint marker can be received at a first operator. The first operator can process the checkpoint marker by sending the checkpoint marker to a second operator and sending state checkpoint information representing a state of the first operator to a checkpoint writer. The checkpoint information can be used to rehydrate the state of one or more operators. For example, after a system failure, system shutdown, etc., checkpoint information can be received from a reader unit at a checkpoint information input queue of the first operator. A state of the first operator can be rehydrated using the checkpoint information. Processing of information in a data input queue of the first operator can be suspended while the checkpoint information is used to rehydrate the state of the first operator. Other operators in a system with the first operator (e.g., the second operator) may be checkpointed and rehydrated in the same manner as the first operator.
    • 可以在第一个操作员处接收检查点标记。 第一个操作员可以通过将检查点标记发送到第二个操作符来处理检查点标记,并将表示第一个操作符的状态的状态检查点信息发送到检查点编写器。 检查点信息可用于对一个或多个操作员的状态进行补水。 例如,在系统故障,系统关机等之后,可以在第一运营商的检查点信息输入队列处从读取单元接收检查点信息。 可以使用检查点信息对第一操作者的状态进行再水化。 当使用检查点信息来补充第一操作者的状态时,可以暂停处理第一操作者的数据输入队列中的信息。 具有第一操作者(例如,第二操作者)的系统中的其他操作者可以以与第一操作者相同的方式进行检查点和再水化。
    • 10. 发明授权
    • Streaming operator placement for distributed stream processing
    • 用于分布式流处理的流式操作员位置
    • US08060614B2
    • 2011-11-15
    • US12141914
    • 2008-06-19
    • Jonathan D. GoldsteinRoger S. BargaMirek RiedewaldMingsheng Hong
    • Jonathan D. GoldsteinRoger S. BargaMirek RiedewaldMingsheng Hong
    • G06F15/16
    • G06F9/5083
    • A streaming operator assignment system and method for determining a streaming operator assignment that minimizes overload in a data processing system. Embodiments of the streaming operator assignment system include an optimization goals definition module, which defines optimization goals in terms of fundamental quantities that system administrators and application writers want to control, such as minimizing the worst case latency over all periods of time, or minimizing how much the system is backlogged with work. Embodiments of the streaming operator assignment system also include an optimization goals solution module that optimizes and solves a selected optimization goal. A specialized optimization technique is used to find the best operator (or load) assignment using the optimization goals to measure of the value of the assignment. This technique minimizes an optimization goal by iterating over all possible operators assignments over all possible nodes to find the operator assignment that minimizes the desired optimization goal.
    • 一种用于确定使数据处理系统中的过载最小化的流操作员分配的流操作员分配系统和方法。 流操作者分配系统的实施例包括优化目标定义模块,其定义系统管理员和应用程序编写者想要控制的基本量的优化目标,例如最小化所有时间段内的最坏情况延迟,或最小化多少 系统用工作积压。 流式操作员分配系统的实施例还包括优化和解决所选优化目标的优化目标解决方案模块。 使用专门的优化技术来使用优化目标来找到最佳的运算符(或加载)分配,以度量分配值。 该技术通过遍历所有可能节点上的所有可能的运算符分配来最小化优化目标,以找到最小化期望的优化目标的运算符分配。