diff --git a/README.md b/README.md
index a6b2879783..b36606966c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Easy Scheduler
 
 > Easy Scheduler for Big Data
 
-[English](https://github.com/analysys/EasyScheduler/blob/dev/README.md) | [Chinese](https://github.com/analysys/EasyScheduler/blob/dev/README_zh_CN.md)
+[English](README.md) | [Chinese](README_zh_CN.md)
 
 ### Design features: 
 
diff --git a/README_zh_CN.md b/README_zh_CN.md
index 0ff1568fee..fa94152f4b 100644
--- a/README_zh_CN.md
+++ b/README_zh_CN.md
@@ -4,7 +4,7 @@ Easy Scheduler
 
 > Easy Scheduler for Big Data
 
-[中文](https://github.com/analysys/EasyScheduler/blob/dev/README_zh_CN.md) | [英文](https://github.com/analysys/EasyScheduler/blob/dev/README.md)
+[中文](README_zh_CN.md) | [英文](README.md)
 
 **设计特点：** 一个分布式易扩展的可视化DAG工作流任务调度系统。致力于解决数据处理流程中错综复杂的依赖关系，使调度系统在数据处理流程中`开箱即用`。
 其主要目标如下：
diff --git a/docs/zh_CN/后端部署文档.md b/docs/zh_CN/后端部署文档.md
index 4d94279b1a..7cb90857cc 100644
--- a/docs/zh_CN/后端部署文档.md
+++ b/docs/zh_CN/后端部署文档.md
@@ -159,8 +159,18 @@ install.sh : 一键部署脚本
 
 * 查看目录
 
-正常编译完后，会在当前目录生成 target/escheduler-{version}/ ， 然后参考
-
+正常编译完后，会在当前目录生成 `target/escheduler-{version}/`
+
+```查看目录
+ ../
+    ├── bin
+    ├── conf
+    |—— install.sh
+    |—— lib
+    |—— logs
+    |—— script
+    |—— sql
+```
 
 
 ### 2.3 系统常用启停服务(服务用途请具体参见《系统架构设计》小节)
diff --git a/escheduler-server/src/main/java/cn/escheduler/server/master/runner/MasterExecThread.java b/escheduler-server/src/main/java/cn/escheduler/server/master/runner/MasterExecThread.java
index 9ce08d691a..4591ab1c15 100644
--- a/escheduler-server/src/main/java/cn/escheduler/server/master/runner/MasterExecThread.java
+++ b/escheduler-server/src/main/java/cn/escheduler/server/master/runner/MasterExecThread.java
@@ -277,6 +277,7 @@ public class MasterExecThread implements Runnable {
         ProcessDag processDag = generateFlowDag(processInstance.getProcessInstanceJson(),
                 startNodeNameList, recoveryNameList, processInstance.getTaskDependType());
         if(processDag == null){
+            //TODO...
             logger.error("processDag is null");
             return;
         }
diff --git a/escheduler-server/src/main/java/cn/escheduler/server/quartz/ProcessScheduleJob.java b/escheduler-server/src/main/java/cn/escheduler/server/quartz/ProcessScheduleJob.java
index 3e546bea7c..8d9abecfc8 100644
--- a/escheduler-server/src/main/java/cn/escheduler/server/quartz/ProcessScheduleJob.java
+++ b/escheduler-server/src/main/java/cn/escheduler/server/quartz/ProcessScheduleJob.java
@@ -78,6 +78,7 @@ public class ProcessScheduleJob implements Job {
     @Override
     public void execute(JobExecutionContext context) throws JobExecutionException {
 
+        //TODO...
         Assert.notNull(processDao, "please call init() method first");
 
         JobDataMap dataMap = context.getJobDetail().getJobDataMap();
@@ -85,24 +86,10 @@ public class ProcessScheduleJob implements Job {
         int projectId = dataMap.getInt(Constants.PROJECT_ID);
         int scheduleId = dataMap.getInt(Constants.SCHEDULE_ID);
 
-        /**
-         * The scheduled time the trigger fired for. For instance the scheduled
-         * time may have been 10:00:00 but the actual fire time may have been
-         * 10:00:03 if the scheduler was too busy.
-         *
-         * @return Returns the scheduledFireTime.
-         * @see #getFireTime()
-         */
+
         Date scheduledFireTime = context.getScheduledFireTime();
 
-        /**
-         * The actual time the trigger fired. For instance the scheduled time may
-         * have been 10:00:00 but the actual fire time may have been 10:00:03 if
-         * the scheduler was too busy.
-         *
-         * @return Returns the fireTime.
-         * @see #getScheduledFireTime()
-         */
+
         Date fireTime = context.getFireTime();
 
         logger.info("scheduled fire time :{}, fire time :{}, process id :{}", scheduledFireTime, fireTime, scheduleId);
diff --git a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
index de4666d102..5495096161 100644
--- a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
+++ b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/FetchTaskThread.java
@@ -128,7 +128,6 @@ public class FetchTaskThread implements Runnable{
         while (Stopper.isRunning()){
             InterProcessMutex mutex = null;
             try {
-
                 ThreadPoolExecutor poolExecutor = (ThreadPoolExecutor) workerExecService;
 
                 //check memory and cpu usage and threads
diff --git a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/TaskScheduleThread.java b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/TaskScheduleThread.java
index 89226bf8b5..f1b4265e30 100644
--- a/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/TaskScheduleThread.java
+++ b/escheduler-server/src/main/java/cn/escheduler/server/worker/runner/TaskScheduleThread.java
@@ -252,7 +252,7 @@ public class TaskScheduleThread implements Callable<Boolean> {
                 }
             }
         }catch (Exception e){
-            logger.error("task escheduler failure : " + e.getMessage(),e);
+            logger.error("task escheduler failure : ", e);
             status = ExecutionStatus.FAILURE ;
             logger.error(String.format("task process exception, process id : %s , task : %s",
                     taskInstance.getProcessInstanceId(),