gauge not worked?

[artb1sh]

panic: inconsistent label cardinality

goroutine 1 [running]:
github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*MetricVec).WithLabelValues(0xc420013080, 0xc4201ac2b0, 0x2, 0x2, 0x0, 0x0)
        /go/src/github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus/vec.go:135 +0x8e
github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*GaugeVec).WithLabelValues(0xc4201c81b0, 0xc4201ac2b0, 0x2, 0x2, 0x0, 0x0)
        /go/src/github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus/gauge.go:108 +0x4c
github.com/carlpett/stream_exporter/linemetrics.GaugeVecLineMetric.MatchLine(0xc420017c80, 0x8, 0xc4201082a0, 0x21, 0xc420108510, 0x0, 0xc420017e48, 0x5, 0xc420017f60, 0x5, ...)
        /go/src/github.com/carlpett/stream_exporter/linemetrics/gauge.go:26 +0x173
github.com/carlpett/stream_exporter/linemetrics.(*GaugeVecLineMetric).MatchLine(0xc4200f02a0, 0xc4201b8150, 0x63)
        <autogenerated>:11 +0x9d
main.main()
        /go/src/github.com/carlpett/stream_exporter/exporter.go:130 +0xbd9

[carlpett]

Hi @artb1sh,
Sorry about that! Could you provide the pattern you were using which caused this, and if possible also the line that triggers it?

[artb1sh]

Hi @carlpett, Label "test-mongo" not unique?
run option:
-input.type syslog -input.syslog.listenaddr 0.0.0.0:1555 -input.syslog.linetemplate '[tag] [content]' -input.syslog.listenfamily udp -config /app/stream_exporter.yaml -log.level debug

metrics:
  - name: commited
    kind: gauge
    pattern: '(?P<section>test\-mongo).*total (?P<value>\d+)'

input stream syslog line:

DEBU[0022] Got line "test-mongo 2018-09-12 07:28:00,655 [DEBUG] testCopier : [9de2afd4] Committed for 1 to total 29395445600"  source="exporter.go:127"

  DEBU[0000] Got line "test-mongo 2018-09-12 07:28:18,961 [DEBUG] testCopier : [9de2afd4] Committed for 2 to total 29395445639"  source="exporter.go:127"
panic: inconsistent label cardinality

goroutine 1 [running]:
github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*MetricVec).WithLabelValues(0xc42010e940, 0xc420182310, 0x2, 0x2, 0x0, 0x0)
        /go/src/github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus/vec.go:135 +0x8e
github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*GaugeVec).WithLabelValues(0xc42022a0d0, 0xc420182310, 0x2, 0x2, 0x0, 0x0)
        /go/src/github.com/carlpett/stream_exporter/vendor/github.com/prometheus/client_golang/prometheus/gauge.go:108 +0x4c
github.com/carlpett/stream_exporter/linemetrics.GaugeVecLineMetric.MatchLine(0xc4200fc580, 0x8, 0xc420110870, 0x2b, 0xc420110ae0, 0x0, 0xc4200fc860, 0x7, 0xc4200fc868, 0x7, ...)
        /go/src/github.com/carlpett/stream_exporter/linemetrics/gauge.go:26 +0x173
github.com/carlpett/stream_exporter/linemetrics.(*GaugeVecLineMetric).MatchLine(0xc4201362a0, 0xc420212100, 0x71)
        <autogenerated>:11 +0x9d
main.main()
        /go/src/github.com/carlpett/stream_exporter/exporter.go:130 +0xbd9

[carlpett]

Hey,
Turns out this is a bug. Fixing now.
Thanks for the help finding and replicating!

[carlpett]

New release out :)

[artb1sh]

@carlpett ,
Thx its work!