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https://issues.apache.org/jira/browse/FLINK-20488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17256293#comment-17256293
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Yuan Mei commented on FLINK-20488:
----------------------------------
A bit more details:
On the high-level, people want to understand whether the checkpoint is
completed as an aligned or unaligned checkpoint; so at least we should have
types of checkpoints completed as {{ALIGNED_CHECKPOINT}} or
{{UN_ALIGNED_CHECKPOINT}}
{{}}
{{}}For each type, there are separate cases:
{{}}
{{ALIGNED_CHECKPOINT}} :
*case1:* aligned with no timeout (unaligned checkpoint is disabled);
*case2:* aligned without being timed out (unaligned checkpoint is enabled, but
alignment duration < timeout)
{{UN_ALIGNED_CHECKPOINT}} :
*case3:* unaligned with no timeout (unaligned is enabled, but not allowed to be
switched back to aligned
*case4:* unaligned due to being timed out (unaligned checkpoint is enabled,
alignment duration > timeout)
*case 5:* we have an additional case where we are NOT in {{ExactlyOnceMode}}
> Show checkpoint type in the UI (AC/UC) for each subtask
> -------------------------------------------------------
>
> Key: FLINK-20488
> URL: https://issues.apache.org/jira/browse/FLINK-20488
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Checkpointing, Runtime / Configuration,
> Runtime / Web Frontend
> Affects Versions: 1.12.0
> Reporter: Roman Khachatryan
> Priority: Major
>
> A follow-up ticket after FLINK-19681 to address issues not directly related
> to checkpointing (see
> [discussion|https://github.com/apache/flink/pull/13827#discussion_r527794600]).
>
> In the UI, show checkpoint type for each subtask; on a checkpoint level
> display unaligned if at least one subtask did UC.
> That should ease debugging of the checkpointing issues.
>
> Disabling propagation moved to FLINK-20548.
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