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https://issues.apache.org/jira/browse/FLINK-25920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17866657#comment-17866657
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Arvid Heise commented on FLINK-25920:
-------------------------------------
Sorry for the delay. I looked through the log and my suspicion got
semi-confirmed:
{noformat}
2024-07-11 16:06:59,694 DEBUG [flink-pekko.actor.default-dispatcher-18]
org.apache.flink.runtime.taskexecutor.TaskExecutor:1014 - Trigger checkpoint
2@1720714019605 for
d4e6985a0a7a5b61b624f2643ed189d1_ab7d539cb065791ff2e139b9116bf4da_1_0.
2024-07-11 16:06:59,695 DEBUG [Source: CEREDeserializer (2/2)#0]
org.apache.flink.streaming.runtime.tasks.StreamTask:1299 - Starting checkpoint
2 CheckpointType{name='Checkpoint', sharingFilesStrategy=FORWARD_BACKWARD} on
task Source: CEREDeserializer (2/2)#0
2024-07-11 16:06:59,695 DEBUG [flink-pekko.actor.default-dispatcher-18]
org.apache.flink.runtime.taskexecutor.TaskExecutor:1014 - Trigger checkpoint
2@1720714019605 for
d4e6985a0a7a5b61b624f2643ed189d1_4afe73f22781c4292b9b71b0e4047f9e_1_0.
2024-07-11 16:06:59,695 DEBUG [Source: CEREDeserializer (2/2)#0]
org.apache.flink.streaming.runtime.tasks.SubtaskCheckpointCoordinatorImpl:325 -
Task Source: CEREDeserializer (2/2)#0 broadcastEvent at 1720714019695,
triggerTime 1720714019605, passed time 90
2024-07-11 16:06:59,695 DEBUG [Source: GCMDeserializer (2/2)#0]
org.apache.flink.streaming.runtime.tasks.StreamTask:1299 - Starting checkpoint
2 CheckpointType{name='Checkpoint', sharingFilesStrategy=FORWARD_BACKWARD} on
task Source: GCMDeserializer (2/2)#0
{noformat}
> Allow receiving updates of CommittableSummary
> ---------------------------------------------
>
> Key: FLINK-25920
> URL: https://issues.apache.org/jira/browse/FLINK-25920
> Project: Flink
> Issue Type: Sub-task
> Components: API / DataStream, Connectors / Common
> Affects Versions: 1.15.0, 1.16.0
> Reporter: Fabian Paul
> Assignee: Arvid Heise
> Priority: Major
> Attachments: trace.zip, trace_again.zip
>
>
> In the case of unaligned checkpoints, it might happen that the checkpoint
> barrier overtakes the records and an empty committable summary is emitted
> that needs to be correct at a later point when the records arrive.
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