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https://issues.apache.org/jira/browse/BEAM-7112?focusedWorklogId=233925&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-233925
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ASF GitHub Bot logged work on BEAM-7112:
----------------------------------------
Author: ASF GitHub Bot
Created on: 27/Apr/19 09:13
Start Date: 27/Apr/19 09:13
Worklog Time Spent: 10m
Work Description: mxm commented on issue #8399: [BEAM-7112] Timer race
with state cleanup - take two
URL: https://github.com/apache/beam/pull/8399#issuecomment-487269724
>The finish bundle callback starts a new bundle when the watermark advances,
which can lead to inconsistent state snapshot.
I think the solution could be to checkpoint cleanup timers and delay
execution of the timers for until after the checkpoint has completed. Otherwise
we have to checkpoint any possible emitted elements during completing the
bundle within `snapshotState`.
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Issue Time Tracking
-------------------
Worklog Id: (was: 233925)
Time Spent: 8h (was: 7h 50m)
> State cleanup interferes with user timer callback
> -------------------------------------------------
>
> Key: BEAM-7112
> URL: https://issues.apache.org/jira/browse/BEAM-7112
> Project: Beam
> Issue Type: Bug
> Components: runner-flink
> Affects Versions: 2.12.0
> Reporter: Thomas Weise
> Assignee: Thomas Weise
> Priority: Major
> Labels: portability-flink
> Fix For: 2.13.0
>
> Time Spent: 8h
> Remaining Estimate: 0h
>
> Cleanup timers and user timers are fired at the watermark. Processing of
> timers in the SDK worker is asynchronous, so it is possible that the state is
> already removed when the user timer callback executes.
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