From 67597cf1f3e9e35de829e97104e668acf618920a Mon Sep 17 00:00:00 2001
From: zhangxiang05 <zhangxiang05@ppdai.com>
Date: Wed, 5 Dec 2018 11:22:07 +0800
Subject: [PATCH] RandomRule policy modification

---
 .../src/main/java/com/netflix/loadbalancer/RandomRule.java | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/RandomRule.java b/ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/RandomRule.java
index debe21b6..d2235511 100644
--- a/ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/RandomRule.java
+++ b/ribbon-loadbalancer/src/main/java/com/netflix/loadbalancer/RandomRule.java
@@ -48,17 +48,18 @@ public Server choose(ILoadBalancer lb, Object key) {
             List<Server> upList = lb.getReachableServers();
             List<Server> allList = lb.getAllServers();
 
+            int upCount = upList.size();
             int serverCount = allList.size();
-            if (serverCount == 0) {
+            if (serverCount == 0 || upCount == 0) {
                 /*
-                 * No servers. End regardless of pass, because subsequent passes
+                 * No servers or No servers available. End regardless of pass, because subsequent passes
                  * only get more restrictive.
                  */
                 return null;
             }
 
             int index = chooseRandomInt(serverCount);
-            server = upList.get(index);
+            server = allList.get(index);
 
             if (server == null) {
                 /*