Reduce logging in dqlite

pkg/dqlite/log.go

 package dqlite
 
 import (
+	"strings"
+
 	"github.com/canonical/go-dqlite/client"
 	"github.com/sirupsen/logrus"
 )
@@ -13,7 +15,11 @@ func log() client.LogFunc {
 		case client.LogError:
 			logrus.Errorf(s, i...)
 		case client.LogInfo:
-			logrus.Infof(s, i...)
+			if strings.HasPrefix(s, "connected") {
+				logrus.Debugf(s, i...)
+			} else {
+				logrus.Infof(s, i...)
+			}
 		case client.LogWarn:
 			logrus.Warnf(s, i...)
 		}

pkg/dqlite/pipe/pipe.go

@@ -29,7 +29,7 @@ func Connect(src net.Conn, dst net.Conn) {
 	go func() {
 		_, err := io.Copy(eagain.Writer{Writer: dst}, eagain.Reader{Reader: src})
 		if err != nil && err != io.EOF {
-			logrus.Warnf("copy pipe src->dst closed: %v", err)
+			logrus.Debugf("copy pipe src->dst closed: %v", err)
 		}
 		src.Close()
 		dst.Close()
@@ -38,7 +38,7 @@ func Connect(src net.Conn, dst net.Conn) {
 	go func() {
 		_, err := io.Copy(eagain.Writer{Writer: src}, eagain.Reader{Reader: dst})
 		if err != nil {
-			logrus.Warnf("copy pipe dst->src closed: %v", err)
+			logrus.Debugf("copy pipe dst->src closed: %v", err)
 		}
 		src.Close()
 		dst.Close()