From b879b0eed088b3cc42d7346f06f85f048442eb2c Mon Sep 17 00:00:00 2001
From: "yihua.huang" <code4crafter@gmail.com>
Date: Thu, 1 Jun 2017 22:25:01 +0800
Subject: [PATCH] fix redisscheduler #583

---
 .../java/us/codecraft/webmagic/scheduler/RedisScheduler.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
index 59f4b3f..ce1111f 100644
--- a/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java
@@ -48,7 +48,7 @@ public class RedisScheduler extends DuplicateRemovedScheduler implements Monitor
     public boolean isDuplicate(Request request, Task task) {
         Jedis jedis = pool.getResource();
         try {
-            return jedis.sadd(getSetKey(task), request.getUrl()) > 0;
+            return jedis.sadd(getSetKey(task), request.getUrl()) == 0;
         } finally {
             pool.returnResource(jedis);
         }