Cannot create an Issue in GitHub to report bug for xk6-tcp

Grafana k6 Extensions
1

I have found a bug in xk6-tcp.

I cannot create a new issue in GitHub Grafana xk6-tcp.

GitHub replies

"Error

Unable to create issue."

Here is the bug report

xk6-tcp related panic due to nil passed as tagSet to handleError

k6 with xk6-tcp crash

panic: runtime error: invalid memory address or nil pointer dereference
atlas.(*Node).ValueByKey          atlas.go:45
metrics.(*TagSet).Get             tags.go:56
summary.(*Output).storeSample     summary.go:177   <- sample.Tags.Get(TagCheck)
summary.(*Output).flushSample     summary.go:86
summary.(*Output).flushMetrics    summary.go:79
output.(*PeriodicFlusher).run     helpers.go:69     <- runs every 200ms in its own goroutine

Suggested Patch to tcp/socket_read.go

-	e := s.handleError(err, "read", nil)
+	// currentTags() must be used here (not nil) - handleError ultimately pushes
+	// a metrics.Sample with these tags, and a nil *metrics.TagSet crashes the
+	// summary/dashboard output's periodic flusher...
+	e := s.handleError(err, "read", s.currentTags())
2

Hi @bernda01,

Welcome to our community forums! :tada:

Thanks for reporting this and apologies for the confusion this might have created.

A colleague has created Panic in periodic metric flusher: `nil` `TagSet` pushed on socket read error · Issue #67 · grafana/xk6-tcp · GitHub, and some folks are reviewing the repo’s configuration for issue creation.

Thanks! :person_bowing: