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  1. Flink
  2. FLINK-18656

Start Delay metric is always zero for unaligned checkpoints and source tasks

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      As visible in the attached screenshot, start delay is 0, despite very high end to end time and very quick async/sync times. This is impossible, as "start delay" should be equal to "end_to_end_time - sync_time - async_time".

      The bug is probably in CheckpointBarrierUnaligner class, which seems to never invoke CheckpointBarrierHandler#markCheckpointStart.

      It's important to make sure this metric is also set for source tasks (time to acquire checkpoint lock).

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            pnowojski Piotr Nowojski
            pnowojski Piotr Nowojski
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