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fix(outputs.event_hubs): Reconnect on link closed error #14050

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fix(outputs.event_hubs): Reconnect on link closed error #14050

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16 changes: 12 additions & 4 deletions plugins/outputs/event_hubs/event_hubs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ package event_hubs
import (
"context"
_ "embed"
"fmt"
"time"

eventhub "github.com/Azure/azure-event-hubs-go/v3"
Expand Down Expand Up @@ -75,7 +76,6 @@ func (*EventHubs) SampleConfig() string {

func (e *EventHubs) Init() error {
err := e.Hub.GetHub(e.ConnectionString)

if err != nil {
return err
}
Expand All @@ -96,7 +96,6 @@ func (e *EventHubs) Close() error {
defer cancel()

err := e.Hub.Close(ctx)

if err != nil {
return err
}
Expand All @@ -112,7 +111,6 @@ func (e *EventHubs) Write(metrics []telegraf.Metric) error {
events := make([]*eventhub.Event, 0, len(metrics))
for _, metric := range metrics {
payload, err := e.serializer.Serialize(metric)

if err != nil {
e.Log.Debugf("Could not serialize metric: %v", err)
continue
Expand All @@ -136,8 +134,18 @@ func (e *EventHubs) Write(metrics []telegraf.Metric) error {
defer cancel()

err := e.Hub.SendBatch(ctx, eventhub.NewEventBatchIterator(events...), e.batchOptions...)

if err != nil {
if err.Error() == "amqp: link closed" {
e.Log.Warn("Link is closed, reconnecting and retrying")
if err := e.Close(); err != nil {
return fmt.Errorf("could not close connection: %w", err)
}
err := e.Hub.GetHub(e.ConnectionString)
if err != nil {
return fmt.Errorf("could not reconnect: %w", err)
}
return e.Hub.SendBatch(ctx, eventhub.NewEventBatchIterator(events...), e.batchOptions...)
}
return err
}

Expand Down