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    • 3. 发明申请
    • FAULT TOLERANT BATCH PROCESSING
    • 容错批处理
    • WO2011008734A1
    • 2011-01-20
    • PCT/US2010/041791
    • 2010-07-13
    • AB INITIO TECHNOLOGY LLCDOUROS, Bryan, PhilATTERBURY, Matthew, DarcyWAKELING, Tim
    • DOUROS, Bryan, PhilATTERBURY, Matthew, DarcyWAKELING, Tim
    • G06F11/00
    • G06F9/46G06F11/1438G06F11/1471
    • Processing a batch of input data includes reading the batch including multiple records and passing the batch through a dataflow graph At least one but fewer than all of the graph components includes a checkpoint process for an action performed for each of multiple units of work associated with one or more of the records The checkpoint process includes opening a checkpoint buffer at the start of processing If a result from performing the action for a unit of work was previously saved in the checkpoint buffer, the saved result is used to complete processing of the unit of work without performing the action again If a result from performing the action for the unit of work is not saved in the checkpoint buffer, the action is performed to complete processing of the unit of work and the result from performing the action is saved in the checkpoint buffer.
    • 处理一批输入数据包括读取包含多个记录的批次,并通过数据流图传递批次至少一个但少于所有图形组件包括针对与一个相关联的多个工作单元中的每一个执行的操作的检查点过程 或更多记录检查点过程包括在处理开始时打开检查点缓冲区如果执行工作单元的操作的结果先前保存在检查点缓冲区中,则保存的结果将用于完成单元的处理 无需再次执行操作如果执行工作单元的操作的结果未保存在检查点缓冲区中,则执行操作以完成对工作单元的处理,并且执行操作的结果将保存在检查点中 缓冲。