running output: Drop nil metrics

fixes #2317
This commit is contained in:
Cameron Sparr 2017-02-01 08:55:22 +00:00
parent 738cbbdbb6
commit e87ce22af9
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2 changed files with 20 additions and 0 deletions

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@ -90,6 +90,9 @@ func NewRunningOutput(
// AddMetric adds a metric to the output. This function can also write cached
// points if FlushBufferWhenFull is true.
func (ro *RunningOutput) AddMetric(m telegraf.Metric) {
if m == nil {
return
}
// Filter any tagexclude/taginclude parameters before adding metric
if ro.Config.Filter.IsActive() {
// In order to filter out tags, we need to create a new metric, since

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@ -75,6 +75,23 @@ func BenchmarkRunningOutputAddFailWrites(b *testing.B) {
}
}
func TestAddingNilMetric(t *testing.T) {
conf := &OutputConfig{
Filter: Filter{},
}
m := &mockOutput{}
ro := NewRunningOutput("test", m, conf, 1000, 10000)
ro.AddMetric(nil)
ro.AddMetric(nil)
ro.AddMetric(nil)
err := ro.Write()
assert.NoError(t, err)
assert.Len(t, m.Metrics(), 0)
}
// Test that NameDrop filters ger properly applied.
func TestRunningOutput_DropFilter(t *testing.T) {
conf := &OutputConfig{