diff --git a/libbeat/monitoring/report/elasticsearch/client.go b/libbeat/monitoring/report/elasticsearch/client.go
index a14f5b7d1e2..199c2aea927 100644
--- a/libbeat/monitoring/report/elasticsearch/client.go
+++ b/libbeat/monitoring/report/elasticsearch/client.go
@@ -118,3 +118,7 @@ func (c *publishClient) Publish(batch publisher.Batch) error {
 func (c *publishClient) Test(d testing.Driver) {
 	c.es.Test(d)
 }
+
+func (c *publishClient) String() string {
+	return "publish(" + c.es.String() + ")"
+}
diff --git a/libbeat/outputs/backoff.go b/libbeat/outputs/backoff.go
index 085b1b6c842..1484bc42c00 100644
--- a/libbeat/outputs/backoff.go
+++ b/libbeat/outputs/backoff.go
@@ -77,3 +77,7 @@ func (b *backoffClient) Test(d testing.Driver) {
 
 	c.Test(d)
 }
+
+func (b *backoffClient) String() string {
+	return "backoff(" + b.client.String() + ")"
+}
diff --git a/libbeat/outputs/console/console.go b/libbeat/outputs/console/console.go
index e5e7ba632ed..67aab4bf569 100644
--- a/libbeat/outputs/console/console.go
+++ b/libbeat/outputs/console/console.go
@@ -160,3 +160,7 @@ func (c *console) writeBuffer(buf []byte) error {
 	}
 	return nil
 }
+
+func (c *console) String() string {
+	return "console"
+}
diff --git a/libbeat/outputs/elasticsearch/client.go b/libbeat/outputs/elasticsearch/client.go
index 37091683f58..dae9d279ec3 100644
--- a/libbeat/outputs/elasticsearch/client.go
+++ b/libbeat/outputs/elasticsearch/client.go
@@ -663,6 +663,10 @@ func (client *Client) Test(d testing.Driver) {
 	})
 }
 
+func (client *Client) String() string {
+	return "elasticsearch(" + client.Connection.URL + ")"
+}
+
 // Connect connects the client.
 func (conn *Connection) Connect() error {
 	var err error
diff --git a/libbeat/outputs/failover.go b/libbeat/outputs/failover.go
index 6f24e3a2eb3..99d379a3943 100644
--- a/libbeat/outputs/failover.go
+++ b/libbeat/outputs/failover.go
@@ -21,6 +21,7 @@ import (
 	"errors"
 	"fmt"
 	"math/rand"
+	"strings"
 
 	"github.com/elastic/beats/libbeat/publisher"
 	"github.com/elastic/beats/libbeat/testing"
@@ -109,3 +110,13 @@ func (f *failoverClient) Test(d testing.Driver) {
 		})
 	}
 }
+
+func (f *failoverClient) String() string {
+	names := make([]string, len(f.clients))
+
+	for i, client := range f.clients {
+		names[i] = client.String()
+	}
+
+	return "failover(" + strings.Join(names, ",") + ")"
+}
diff --git a/libbeat/outputs/fileout/file.go b/libbeat/outputs/fileout/file.go
index b30a28733d7..9cdb21452a0 100644
--- a/libbeat/outputs/fileout/file.go
+++ b/libbeat/outputs/fileout/file.go
@@ -35,6 +35,7 @@ func init() {
 }
 
 type fileOutput struct {
+	filePath string
 	beat     beat.Info
 	observer outputs.Observer
 	rotator  *file.Rotator
@@ -74,6 +75,8 @@ func (out *fileOutput) init(beat beat.Info, c config) error {
 		path = filepath.Join(c.Path, out.beat.Beat)
 	}
 
+	out.filePath = path
+
 	var err error
 	out.rotator, err = file.NewFileRotator(
 		path,
@@ -148,3 +151,7 @@ func (out *fileOutput) Publish(
 
 	return nil
 }
+
+func (out *fileOutput) String() string {
+	return "file(" + out.filePath + ")"
+}
diff --git a/libbeat/outputs/kafka/client.go b/libbeat/outputs/kafka/client.go
index c20b4bd3f86..cae9c262eb5 100644
--- a/libbeat/outputs/kafka/client.go
+++ b/libbeat/outputs/kafka/client.go
@@ -20,6 +20,7 @@ package kafka
 import (
 	"errors"
 	"fmt"
+	"strings"
 	"sync"
 	"sync/atomic"
 
@@ -141,6 +142,10 @@ func (c *client) Publish(batch publisher.Batch) error {
 	return nil
 }
 
+func (c *client) String() string {
+	return "kafka(" + strings.Join(c.hosts, ",") + ")"
+}
+
 func (c *client) getEventMessage(data *publisher.Event) (*message, error) {
 	event := &data.Content
 	msg := &message{partition: -1, data: *data}
diff --git a/libbeat/outputs/logstash/async.go b/libbeat/outputs/logstash/async.go
index 1e2ad5ba1a1..fa9a6e94825 100644
--- a/libbeat/outputs/logstash/async.go
+++ b/libbeat/outputs/logstash/async.go
@@ -169,6 +169,10 @@ func (c *asyncClient) Publish(batch publisher.Batch) error {
 	return nil
 }
 
+func (c *asyncClient) String() string {
+	return "async(" + c.Client.String() + ")"
+}
+
 func (c *asyncClient) publishWindowed(
 	ref *msgRef,
 	events []publisher.Event,
diff --git a/libbeat/outputs/outputs.go b/libbeat/outputs/outputs.go
index 2f771049537..aff2bf14574 100644
--- a/libbeat/outputs/outputs.go
+++ b/libbeat/outputs/outputs.go
@@ -35,6 +35,8 @@ type Client interface {
 	// the publisher pipeline. The publisher pipeline (if configured by the output
 	// factory) will take care of retrying/dropping events.
 	Publish(publisher.Batch) error
+
+	String() string
 }
 
 // NetworkClient defines the required client capabilities for network based
diff --git a/libbeat/outputs/redis/client.go b/libbeat/outputs/redis/client.go
index 9b84b6e0fb5..72c6279a4f8 100644
--- a/libbeat/outputs/redis/client.go
+++ b/libbeat/outputs/redis/client.go
@@ -152,6 +152,10 @@ func (c *client) Publish(batch publisher.Batch) error {
 	return err
 }
 
+func (c *client) String() string {
+	return "redis(" + c.Client.String() + ")"
+}
+
 func (c *client) makePublish(
 	conn redis.Conn,
 ) (publishFn, error) {
diff --git a/libbeat/outputs/transport/client.go b/libbeat/outputs/transport/client.go
index d337d5f4d82..8313b592e10 100644
--- a/libbeat/outputs/transport/client.go
+++ b/libbeat/outputs/transport/client.go
@@ -247,3 +247,7 @@ func (c *Client) Test(d testing.Driver) {
 		d.Fatal("talk to server", err)
 	})
 }
+
+func (c *Client) String() string {
+	return c.network + "://" + c.host
+}
diff --git a/libbeat/publisher/pipeline/output.go b/libbeat/publisher/pipeline/output.go
index 497f04d4af0..60ed3519ae0 100644
--- a/libbeat/publisher/pipeline/output.go
+++ b/libbeat/publisher/pipeline/output.go
@@ -85,21 +85,24 @@ func (w *netClientWorker) run() {
 			batch.Cancelled()
 
 			if w.closed.Load() {
-				logp.Info("Closed connection")
+				logp.Info("Closed connection to %v", w.client)
 				return
 			}
 
 			if reconnectAttempts > 0 {
-				logp.Info("Attempting to reconnect with %d reconnect attempt(s)", reconnectAttempts)
+				logp.Info("Attempting to reconnect to %v with %d reconnect attempt(s)", w.client, reconnectAttempts)
+			} else {
+				logp.Info("Connecting to %v", w.client)
 			}
 
 			err := w.client.Connect()
 			if err != nil {
-				logp.Err("Failed to connect: %v", err)
+				logp.Err("Failed to connect to %v: %v", w.client, err)
 				reconnectAttempts++
 				continue
 			}
 
+			logp.Info("Connection to %v established", w.client)
 			reconnectAttempts = 0
 			break
 		}
diff --git a/libbeat/publisher/pipeline/stress/out.go b/libbeat/publisher/pipeline/stress/out.go
index 6ca2b09fdd6..5bc72ed33cd 100644
--- a/libbeat/publisher/pipeline/stress/out.go
+++ b/libbeat/publisher/pipeline/stress/out.go
@@ -106,3 +106,7 @@ func (t *testOutput) Publish(batch publisher.Batch) error {
 
 	return nil
 }
+
+func (t *testOutput) String() string {
+	return "test"
+}