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https://issues.apache.org/jira/browse/FLINK-5285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-5285.
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Resolution: Fixed
Fixed in 1.2.0 via d3f19a5bead1d0709da733b75d729afa9341c250
Fixed in 1.1.4 via afaa27e9faeb0352a49f30de90e719572caa97c5
> CancelCheckpointMarker flood when using at least once mode
> ----------------------------------------------------------
>
> Key: FLINK-5285
> URL: https://issues.apache.org/jira/browse/FLINK-5285
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.2.0, 1.1.3
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Fix For: 1.2.0, 1.1.4
>
>
> When using at least once mode ({{BarrierTracker}}), then an interleaved
> arrival of cancellation barriers at the {{BarrierTracker}} of two consecutive
> checkpoints can trigger a flood of {{CancelCheckpointMarkers}}.
> The following sequence is problematic:
> {code}
> Cancel(1, 0),
> Cancel(2, 0),
> Cancel(1, 1),
> Cancel(2, 1),
> Cancel(1, 2),
> Cancel(2, 2)
> {code}
> with {{Cancel(checkpointId, channelId)}}
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