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https://issues.apache.org/jira/browse/BEAM-10395?focusedWorklogId=453190&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-453190
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ASF GitHub Bot logged work on BEAM-10395:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 01/Jul/20 01:48
Start Date: 01/Jul/20 01:48
Worklog Time Spent: 10m
Work Description: steveniemitz opened a new pull request #12144:
URL: https://github.com/apache/beam/pull/12144
If a job is configured to upload multiple files to the same destination,
they'll end up attempting to overwrite each other in parallel, causing the
runner to need to retry multiple times until one wins the race. This change
deduplicates them by destination.
------------------------
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Issue Time Tracking
-------------------
Worklog Id: (was: 453190)
Remaining Estimate: 0h
Time Spent: 10m
> Dataflow runner should deduplicate files to stage by destination
> -----------------------------------------------------------------
>
> Key: BEAM-10395
> URL: https://issues.apache.org/jira/browse/BEAM-10395
> Project: Beam
> Issue Type: Improvement
> Components: runner-dataflow
> Reporter: Steve Niemitz
> Assignee: Steve Niemitz
> Priority: P2
> Time Spent: 10m
> Remaining Estimate: 0h
>
> If a pipeline contains multiple files with the same destination path, the
> dataflow runner will try to stage them both in parallel, resulting in the
> upload usually failing (due to conflicting uploads).
> The runner should only upload one file per destination, and ideally check
> that the sources are the same as well.
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