From 2e8425117c483160acdf6728fb72db1be58aa644 Mon Sep 17 00:00:00 2001
From: ascrutae <ascrutae@gmail.com>
Date: Wed, 24 Feb 2016 19:35:03 +0800
Subject: [PATCH] =?UTF-8?q?1.=20=E4=BF=AE=E5=A4=8DunusedServerAddresses?=
 =?UTF-8?q?=E7=9A=84=E6=95=B0=E9=87=8F=E5=B0=8F=E4=BA=8E=E7=AD=89=E4=BA=8E?=
 =?UTF-8?q?1=E7=9A=84=E6=83=85=E5=86=B5=EF=BC=8C=E4=BD=BF=E7=94=A8ThreadLo?=
 =?UTF-8?q?calRandom=E4=BC=9A=E6=8A=9B=E5=87=BA=E5=BC=82=E5=B8=B8?=
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Content-Type: text/plain; charset=UTF-8
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---
 .../sender/DataSenderFactoryWithBalance.java           | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/sender/DataSenderFactoryWithBalance.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/sender/DataSenderFactoryWithBalance.java
index d37ffe440..5a2662c2c 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/sender/DataSenderFactoryWithBalance.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/sender/DataSenderFactoryWithBalance.java
@@ -197,8 +197,14 @@ public class DataSenderFactoryWithBalance {
     private static DataSender findReadySender() {
 
         DataSender result = null;
-        int index = ThreadLocalRandom.current().nextInt(0,
-                unusedServerAddresses.size());
+
+        int index = 0;
+
+        if (unusedServerAddresses.size() > 1){
+            index = ThreadLocalRandom.current().nextInt(0,
+                    unusedServerAddresses.size());
+        }
+
         for (int i = 0; i < unusedServerAddresses.size(); i++, index++) {
 
             if (index == unusedServerAddresses.size()) {