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https://issues.apache.org/jira/browse/BEAM-9640?focusedWorklogId=542460&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-542460
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ASF GitHub Bot logged work on BEAM-9640:
----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Jan/21 22:11
Start Date: 26/Jan/21 22:11
Worklog Time Spent: 10m
Work Description: pabloem opened a new pull request #11296:
URL: https://github.com/apache/beam/pull/11296
r: @robertwb
This change adds an initial 'sketch' of watermark tracking to the batch
runner. Watermark tracking is done like so:
1. If a PCollection has a delayed application, its watermark will be held at
`MIN_WATERMARK`.
2. If a PTransform has a channel split, its input PCollection's watermark
will be held at `MIN_WATERMARK`
3. For timers, an 'input pcollection' node is created for each timer family
to be consumed by a transform. If a bundle execution returns a timer set at
time X, the input PCollection for that timer family will be held at X. This
will hold back the downstream watermarks from the stage.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 542460)
Time Spent: 2h 10m (was: 2h)
> Track PCollection watermark across bundle executions
> ----------------------------------------------------
>
> Key: BEAM-9640
> URL: https://issues.apache.org/jira/browse/BEAM-9640
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-py-core
> Reporter: Pablo Estrada
> Priority: P3
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> This can be done without relying on the watermark manager for execution.
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