retry and better logs

synced-pool.go

@@ -363,17 +363,23 @@ func (p *SyncedPool) removeLocalGrain(id CartId) {
 func (p *SyncedPool) AddRemote(host string) {
 
 	_, hasHost := p.remotes[host]
-	if host == "" || hasHost {
+	if host == "" || hasHost || host == p.Hostname {
 		return
 	}
-	// if host == "" || hasHost || host == p.Hostname {
-	// 	return
-	// }
+
 	client := NewConnection(fmt.Sprintf("%s:1338", host))
-	r, err := client.Call(Ping, nil)
+	var r *FrameWithPayload
+	var err error
+	pings := 3
+	for pings >= 0 {
+		r, err = client.Call(Ping, nil)
 		if err != nil {
-		log.Printf("Error connecting to remote %s: %s\n", host, err)
-		return
+			log.Printf("Ping failed when adding %s, trying %d more times\n", host, pings)
+			pings--
+			time.Sleep(time.Millisecond * 300)
+			continue
+		}
+		break
 	}
 	log.Printf("Connected to remote %s: %v\n", host, r)