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使用flinkCdc同步sqlserver数据时,全量checkpoint如何保证成功?

官网说
Can’t perform checkpoint during scanning snapshot of tables #
During scanning snapshot of database tables, since there is no recoverable position, we can’t perform checkpoints. In order to not perform checkpoints, SqlServer CDC source will keep the checkpoint waiting to timeout. The timeout checkpoint will be recognized as failed checkpoint, by default, this will trigger a failover for the Flink job. So if the database table is large, it is recommended to add following Flink configurations to avoid failover because of the timeout checkpoints:

execution.checkpointing.interval: 10min
execution.checkpointing.tolerable-failed-checkpoints: 100
restart-strategy: fixed-delay
restart-strategy.fixed-delay.attempts: 2147483647

也就是说全量一失败就得从0开始?

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游客sqifugm2kmvb2 2024-10-11 14:53:07 62 0
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