From ce14fcb995fa29071f84ae549c051dced65a3699 Mon Sep 17 00:00:00 2001
From: hengyunabc <hengyunabc@gmail.com>
Date: Sat, 20 Feb 2021 16:39:32 +0800
Subject: [PATCH] fix dashboard command may block when try to read tomcat info.
 #1700

---
 core/src/main/java/com/taobao/arthas/core/util/NetUtils.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/src/main/java/com/taobao/arthas/core/util/NetUtils.java b/core/src/main/java/com/taobao/arthas/core/util/NetUtils.java
index a3e9a63d1..f7be4f7ce 100644
--- a/core/src/main/java/com/taobao/arthas/core/util/NetUtils.java
+++ b/core/src/main/java/com/taobao/arthas/core/util/NetUtils.java
@@ -22,6 +22,8 @@ public class NetUtils {
     private static final int QOS_PORT = 12201;
     private static final String QOS_RESPONSE_START_LINE = "pandora>[QOS Response]";
     private static final int INTERNAL_SERVER_ERROR = 500;
+    private static final int CONNECT_TIMEOUT = 1000;
+    private static final int READ_TIMEOUT = 3000;
 
     /**
      * This implementation is based on Apache HttpClient.
@@ -34,6 +36,8 @@ public class NetUtils {
         try {
             URL url = new URL(urlString);
             urlConnection = (HttpURLConnection)url.openConnection();
+            urlConnection.setConnectTimeout(CONNECT_TIMEOUT);
+            urlConnection.setReadTimeout(READ_TIMEOUT);;
             // prefer json to text
             urlConnection.setRequestProperty("Accept", "application/json,text/plain;q=0.2");
             in = urlConnection.getInputStream();