Improve error reporting for the gossip protocol

node/status.go

@@ -3,6 +3,7 @@ package node
 import (
 	"context"
 	"errors"
+	"fmt"
 	"log"
 	"net"
 	"sync"
@@ -118,7 +119,7 @@ func (m *statusManager) propagateStatus(ctx context.Context) error {
 	target := endpoint.Addrs[0]
 	conn, err := m.conns.Get(ctx, target)
 	if err != nil {
-		return err
+		return fmt.Errorf("connect: %s: %v", target, err)
 	}
 	client := pb.NewGossipServiceClient(conn)
 	resp, err := client.Exchange(ctx, &pb.ExchangeRequest{
@@ -126,7 +127,7 @@ func (m *statusManager) propagateStatus(ctx context.Context) error {
 	})
 	if err != nil {
 		m.conns.Drop(target, conn)
-		return err
+		return fmt.Errorf("Exchange: %s: %v", target, err)
 	}
 
 	// Merge the node info provided in the response.