From 5e0adf7d535c6b74566ffdaf7a54ec4b2097c54d Mon Sep 17 00:00:00 2001
From: KomachiSion <263976490@qq.com>
Date: Thu, 7 Jan 2021 13:36:36 +0800
Subject: [PATCH] For #4291, support remove old raft metadata

---
 core/src/main/java/com/alibaba/nacos/core/cluster/Member.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/com/alibaba/nacos/core/cluster/Member.java b/core/src/main/java/com/alibaba/nacos/core/cluster/Member.java
index 78f1c9e9959..48687796aec 100644
--- a/core/src/main/java/com/alibaba/nacos/core/cluster/Member.java
+++ b/core/src/main/java/com/alibaba/nacos/core/cluster/Member.java
@@ -78,7 +78,9 @@ public Map<String, Object> getExtendInfo() {
     }
     
     public void setExtendInfo(Map<String, Object> extendInfo) {
-        this.extendInfo.putAll(extendInfo);
+        Map<String, Object> newExtendInfo = Collections.synchronizedMap(new TreeMap<>());
+        newExtendInfo.putAll(extendInfo);
+        this.extendInfo = newExtendInfo;
     }
     
     public String getIp() {