From 77fe88c4540b398f8f980e1fadc4bf0bfdb7d2ba Mon Sep 17 00:00:00 2001
From: mzp0514 <mzp0514@gmail.com>
Date: Wed, 28 Apr 2021 16:29:26 +0800
Subject: [PATCH] update

---
 .../iotdb/db/sink/alertmanager/AlertManagerHandler.java   | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/server/src/main/java/org/apache/iotdb/db/sink/alertmanager/AlertManagerHandler.java b/server/src/main/java/org/apache/iotdb/db/sink/alertmanager/AlertManagerHandler.java
index fd6076ff15210..600bb72db015f 100644
--- a/server/src/main/java/org/apache/iotdb/db/sink/alertmanager/AlertManagerHandler.java
+++ b/server/src/main/java/org/apache/iotdb/db/sink/alertmanager/AlertManagerHandler.java
@@ -61,9 +61,11 @@ public void close() throws IOException {
 
   @Override
   public void open(org.apache.iotdb.db.sink.alertmanager.AlertManagerConfiguration configuration) {
-    this.request = new HttpPost(configuration.getEndpoint());
-    request.setHeader("Accept", "application/json");
-    request.setHeader("Content-type", "application/json");
+    if (this.request == null) {
+      this.request = new HttpPost(configuration.getEndpoint());
+      request.setHeader("Accept", "application/json");
+      request.setHeader("Content-type", "application/json");
+    }
 
     openClient();
   }