From daf4767a519451571524c91274eb1fa08fc14f14 Mon Sep 17 00:00:00 2001
From: Dennis Won <jhwon0820@gmail.com>
Date: Sat, 31 Aug 2019 17:12:08 -0700
Subject: [PATCH] close peer sync config connections to prevent duplicate peer
 sync config creation

---
 api/service/syncing/syncing.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/api/service/syncing/syncing.go b/api/service/syncing/syncing.go
index 0f87c8a6a..a1c1e7b04 100644
--- a/api/service/syncing/syncing.go
+++ b/api/service/syncing/syncing.go
@@ -217,6 +217,9 @@ func (ss *StateSync) CreateSyncConfig(peers []p2p.Peer, isBeacon bool) error {
 	if len(peers) == 0 {
 		return ctxerror.New("[SYNC] no peers to connect to")
 	}
+	if ss.syncConfig != nil {
+		ss.syncConfig.CloseConnections()
+	}
 	ss.syncConfig = &SyncConfig{}
 	var wg sync.WaitGroup
 	for _, peer := range peers {