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https://issues.apache.org/jira/browse/BEAM-5421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17123143#comment-17123143
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Beam JIRA Bot commented on BEAM-5421:
-------------------------------------
This issue is P2 but has been unassigned without any comment for 60 days so it
has been labeled "stale-P2". If this issue is still affecting you, we care!
Please comment and remove the label. Otherwise, in 14 days the issue will be
moved to P3.
Please see https://beam.apache.org/contribute/jira-priorities/ for a detailed
explanation of what these priorities mean.
> filter.Exclude is panicking
> ---------------------------
>
> Key: BEAM-5421
> URL: https://issues.apache.org/jira/browse/BEAM-5421
> Project: Beam
> Issue Type: Bug
> Components: sdk-go
> Affects Versions: 2.6.0
> Environment: Mac, Linux
> Reporter: Vadym
> Priority: P2
> Labels: stale-P2
>
> {code:java}
> package main
> import (
> "context"
> "github.com/apache/beam/sdks/go/pkg/beam"
> "github.com/apache/beam/sdks/go/pkg/beam/io/textio"
> "github.com/apache/beam/sdks/go/pkg/beam/log"
> "github.com/apache/beam/sdks/go/pkg/beam/transforms/filter"
> "github.com/apache/beam/sdks/go/pkg/beam/x/beamx"
> )
> func islongWord(s string) bool {
> return len(s) < 3
> }
> func main() {
> beam.Init()
> ctx := context.Background()
> p, s := beam.NewPipelineWithRoot()
> words := beam.Create(s, "a", "b", "long", "alsolong")
> long := filter.Exclude(s, words, islongWord)
> textio.Write(s, "long.txt", long)
> if err := beamx.Run(ctx, p); err != nil {
> log.Exitf(ctx, "Failed to execute job: %v", err)
> }
> }
> {code}
> The code above fails with the error message:
> {{2018/09/18 15:47:23 Failed to execute job: panic: reflect: Call using
> []uint8 as type string goroutine 1 [running]:}}
>
> The code was taken from Exclude example in the documentation:
> https://godoc.org/github.com/apache/beam/sdks/go/pkg/beam/transforms/filter#Exclude
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