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https://issues.apache.org/jira/browse/BEAM-9746?focusedWorklogId=422459&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-422459
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ASF GitHub Bot logged work on BEAM-9746:
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Author: ASF GitHub Bot
Created on: 15/Apr/20 00:33
Start Date: 15/Apr/20 00:33
Worklog Time Spent: 10m
Work Description: lostluck commented on pull request #11413: [BEAM-9746]
check for 0 length copies from state
URL: https://github.com/apache/beam/pull/11413
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Issue Time Tracking
-------------------
Worklog Id: (was: 422459)
Time Spent: 3h 10m (was: 3h)
> [Go SDK] Empty side inputs causing spurious zero elements
> ---------------------------------------------------------
>
> Key: BEAM-9746
> URL: https://issues.apache.org/jira/browse/BEAM-9746
> Project: Beam
> Issue Type: Improvement
> Components: sdk-go
> Reporter: Robert Burke
> Assignee: Robert Burke
> Priority: Major
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> A user discovered that empty side inputs would spuriously provide a single
> zero element.
> The error was narrowed down to the Go SDK's state manager code copying the
> stateGetResponse data wasn't checking that the original data source even had
> any bytes in it, leading it in particular to interpret length prefixed data
> as having 0 length, which would cause zero value elements to be generated.
> Notably, this caused empty strings.
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