[
https://issues.apache.org/jira/browse/BEAM-8566?focusedWorklogId=339348&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-339348
]
ASF GitHub Bot logged work on BEAM-8566:
----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Nov/19 13:31
Start Date: 06/Nov/19 13:31
Worklog Time Spent: 10m
Work Description: mxm commented on pull request #10008: [BEAM-8566] Do
not swallow execution errors during checkpointing
URL: https://github.com/apache/beam/pull/10008
If a bundle fails to finalize before creating a checkpoint, it may be
swallowed
and just considered a checkpointing error. This breaks the execution flow and
exactly-once guarantees.
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Issue Time Tracking
-------------------
Worklog Id: (was: 339348)
Time Spent: 20m (was: 10m)
> Checkpoint buffer is flushed prematurely when another bundle is started
> during checkpointing
> --------------------------------------------------------------------------------------------
>
> Key: BEAM-8566
> URL: https://issues.apache.org/jira/browse/BEAM-8566
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Priority: Major
> Fix For: 2.18.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> As part of a checkpoint, the current bundle is finalized. When the bundle is
> finalized, the watermark, currently held back, may also be progressed which
> can cause the start of another bundle. When a new bundle is started, any
> to-be-buffered items from the previous bundle for the pending checkpoint may
> be emitted. This should not happen.
> This only effects portable pipelines where we have to hold back the watermark
> due to the asynchronous processing of elements.
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