From 10b48a5b1fe04c4022374abe2449f046bc245cbd Mon Sep 17 00:00:00 2001
From: xuxueli <931591021@qq.com>
Date: Mon, 27 May 2019 20:37:32 +0800
Subject: [PATCH] update document

---
 .../com/xxl/job/admin/core/thread/JobScheduleHelper.java    | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java b/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java
index 57c16e77..6310f491 100644
--- a/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java
+++ b/xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobScheduleHelper.java
@@ -38,7 +38,7 @@ public class JobScheduleHelper {
             public void run() {
 
                 try {
-                    TimeUnit.MILLISECONDS.sleep(5000 + System.currentTimeMillis()%1000 );
+                    TimeUnit.MILLISECONDS.sleep(5000 - System.currentTimeMillis()%1000 );
                 } catch (InterruptedException e) {
                     if (!toStop) {
                         logger.error(e.getMessage(), e);
@@ -148,7 +148,9 @@ public class JobScheduleHelper {
 
                     // next second, align second
                     try {
-                        TimeUnit.MILLISECONDS.sleep(cost<1000?(1000-cost):100);
+                        if (cost < 1000) {
+                            TimeUnit.MILLISECONDS.sleep(1000 - System.currentTimeMillis()%1000);
+                        }
                     } catch (InterruptedException e) {
                         if (!toStop) {
                             logger.error(e.getMessage(), e);