update documents.

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)

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;
         }

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);

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

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(),