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https://issues.apache.org/jira/browse/BEAM-7970?focusedWorklogId=308221&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-308221
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ASF GitHub Bot logged work on BEAM-7970:
----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Sep/19 23:31
Start Date: 06/Sep/19 23:31
Worklog Time Spent: 10m
Work Description: youngoli commented on pull request #9512: [BEAM-7970]
Adding correct version of Go protobuf compiler.
URL: https://github.com/apache/beam/pull/9512
From personal experience, using a version of the Go protobuf compiler that's
too new will cause errors when generating the protobuf code, since it'll be
incompatible with the version of the golang/protobuf library used in Beam. So I
added a note with that warning and the best version to use.
Only worry is that the note will become outdated if we ever update the
golock file or switch to modules, but I can't think of a more "evergreen" way
to leave a warning.
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Issue Time Tracking
-------------------
Worklog Id: (was: 308221)
Time Spent: 40m (was: 0.5h)
> Regenerate Go SDK proto files in correct version
> ------------------------------------------------
>
> Key: BEAM-7970
> URL: https://issues.apache.org/jira/browse/BEAM-7970
> Project: Beam
> Issue Type: Bug
> Components: sdk-go
> Reporter: Daniel Oliveira
> Assignee: Daniel Oliveira
> Priority: Major
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Generated proto files in the Go SDK currently include this bit:
> {{// This is a compile-time assertion to ensure that this generated file}}
> {{// is compatible with the proto package it is being compiled against.}}
> {{// A compilation error at this line likely means your copy of the}}
> {{// proto package needs to be updated.}}
> {{const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package}}
>
> This indicates that the protos are being generated as proto v2 for whatever
> reason. Most likely, as mentioned by this post with someone with a similar
> issue, because the proto generation binary needs to be rebuilt before
> generating the files again:
> [https://github.com/golang/protobuf/issues/449#issuecomment-340884839]
> This hasn't caused any errors so far, but might eventually cause errors if we
> hit version differences between the v2 and v3 protos.
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