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https://issues.apache.org/jira/browse/FLINK-19487?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann updated FLINK-19487:
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Component/s: Runtime / Checkpointing
> Checkpoint start delay is always zero for single channel tasks
> --------------------------------------------------------------
>
> Key: FLINK-19487
> URL: https://issues.apache.org/jira/browse/FLINK-19487
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Checkpointing, Runtime / Metrics
> Affects Versions: 1.11.2
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Minor
> Fix For: 1.12.0
>
>
> In {{CheckpointBarrierAligner}} we are marking start of the checkpoint only
> if the number of channels is more than 1. As a result of this,
> {{checkpointStartDelay}} is never updated.
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