Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/processors/batch/batch.go

@@ -0,0 +1,49 @@
+package batch
+
+import (
+	_ "embed"
+	"strconv"
+	"sync/atomic"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/plugins/processors"
+)
+
+//go:embed sample.conf
+var sampleConfig string
+
+type Batch struct {
+	BatchTag     string `toml:"batch_tag"`
+	NumBatches   uint64 `toml:"batches"`
+	SkipExisting bool   `toml:"skip_existing"`
+
+	// the number of metrics that have been processed so far
+	count atomic.Uint64
+}
+
+func (*Batch) SampleConfig() string {
+	return sampleConfig
+}
+
+func (b *Batch) Apply(in ...telegraf.Metric) []telegraf.Metric {
+	out := make([]telegraf.Metric, 0, len(in))
+	for _, m := range in {
+		if b.SkipExisting && m.HasTag(b.BatchTag) {
+			out = append(out, m)
+			continue
+		}
+
+		oldCount := b.count.Add(1) - 1
+		batchID := oldCount % b.NumBatches
+		m.AddTag(b.BatchTag, strconv.FormatUint(batchID, 10))
+		out = append(out, m)
+	}
+
+	return out
+}
+
+func init() {
+	processors.Add("batch", func() telegraf.Processor {
+		return &Batch{}
+	})
+}