[Fix-603] [admin] Task information will be cleared when refreshing tasks that have lost connection

dlink-admin/src/main/java/com/dlink/service/impl/JobHistoryServiceImpl.java

 package com.dlink.service.impl;
 
+import com.dlink.constant.FlinkRestResultConstant;
 import org.springframework.stereotype.Service;
 
 import com.dlink.api.FlinkAPI;
@@ -70,6 +71,9 @@ public class JobHistoryServiceImpl extends SuperServiceImpl<JobHistoryMapper, Jo
         jobHistory.setId(id);
         try {
             JsonNode jobInfo = FlinkAPI.build(jobManagerHost).getJobInfo(jobId);
+            if(jobInfo.has(FlinkRestResultConstant.ERRORS)){
+                return jobHistory;
+            }
             JsonNode exception = FlinkAPI.build(jobManagerHost).getException(jobId);
             JsonNode checkPoints = FlinkAPI.build(jobManagerHost).getCheckPoints(jobId);
             JsonNode checkPointsConfig = FlinkAPI.build(jobManagerHost).getCheckPointsConfig(jobId);
@@ -87,6 +91,7 @@ public class JobHistoryServiceImpl extends SuperServiceImpl<JobHistoryMapper, Jo
                 }
             }
         } catch (Exception e) {
+            e.printStackTrace();
         } finally {
             return jobHistory;
         }

dlink-admin/src/main/java/com/dlink/service/impl/TaskServiceImpl.java

@@ -604,6 +604,7 @@ public class TaskServiceImpl extends SuperServiceImpl<TaskMapper, Task> implemen
                 jobInfoDetail.setClusterConfiguration(clusterConfigurationService.getClusterConfigById(history.getClusterConfigurationId()));
             }
             jobInfoDetail.setHistory(history);
+            jobInfoDetail.setJobHistory(jobHistoryService.getJobHistory(id));
             pool.push(key, jobInfoDetail);
         }
         if (!isCoercive && !inRefreshPlan(jobInfoDetail.getInstance())) {
@@ -611,10 +612,13 @@ public class TaskServiceImpl extends SuperServiceImpl<TaskMapper, Task> implemen
         }
         JobHistory jobHistoryJson = jobHistoryService.refreshJobHistory(id, jobInfoDetail.getCluster().getJobManagerHost(), jobInfoDetail.getInstance().getJid(), jobInfoDetail.isNeedSave());
         JobHistory jobHistory = jobHistoryService.getJobHistoryInfo(jobHistoryJson);
+        if (JobStatus.isDone(jobInfoDetail.getInstance().getStatus()) && Asserts.isNull(jobHistory.getJob())) {
+            return jobInfoDetail.getInstance();
+        }
         jobInfoDetail.setJobHistory(jobHistory);
         String status = jobInfoDetail.getInstance().getStatus();
         boolean jobStatusChanged = false;
-        if (Asserts.isNull(jobInfoDetail.getJobHistory().getJob()) || jobInfoDetail.getJobHistory().getJob().has(FlinkRestResultConstant.ERRORS)) {
+        if (Asserts.isNull(jobInfoDetail.getJobHistory().getJob()) || Asserts.isNull(jobInfoDetail.getJobHistory().getJob())) {
             jobInfoDetail.getInstance().setStatus(JobStatus.UNKNOWN.getValue());
         } else {
             jobInfoDetail.getInstance().setDuration(jobInfoDetail.getJobHistory().getJob().get(FlinkRestResultConstant.JOB_DURATION).asLong() / 1000);