diff --git a/manager/src/main/java/com/usthe/manager/pojo/entity/Monitor.java b/manager/src/main/java/com/usthe/manager/pojo/entity/Monitor.java
index 6fa90e7..b496152 100644
--- a/manager/src/main/java/com/usthe/manager/pojo/entity/Monitor.java
+++ b/manager/src/main/java/com/usthe/manager/pojo/entity/Monitor.java
@@ -9,6 +9,7 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 import org.hibernate.validator.constraints.Length;
 
+import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.Id;
 import javax.persistence.Table;
@@ -103,12 +104,14 @@ public class Monitor {
      * 记录创建时间
      */
     @ApiModelProperty(value = "记录创建时间(毫秒时间戳)", example = "1612198922000", accessMode = READ_ONLY, position = 10)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtCreate;
 
     /**
      * 记录最新修改时间
      */
     @ApiModelProperty(value = "记录最新修改时间(毫秒时间戳)", example = "1612198444000", accessMode = READ_ONLY, position = 11)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtUpdate;
 
 }
diff --git a/manager/src/main/java/com/usthe/manager/pojo/entity/Param.java b/manager/src/main/java/com/usthe/manager/pojo/entity/Param.java
index 675884e..b7f0fd4 100644
--- a/manager/src/main/java/com/usthe/manager/pojo/entity/Param.java
+++ b/manager/src/main/java/com/usthe/manager/pojo/entity/Param.java
@@ -8,6 +8,7 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 import org.hibernate.validator.constraints.Length;
 
+import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
@@ -74,12 +75,14 @@ public class Param {
      * 记录创建时间
      */
     @ApiModelProperty(value = "记录创建时间(毫秒时间戳)", example = "1612198922000", accessMode = READ_ONLY, position = 5)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtCreate;
 
     /**
      * 记录最新修改时间
      */
     @ApiModelProperty(value = "记录最新修改时间(毫秒时间戳)", example = "1612198444000", accessMode = READ_ONLY, position = 6)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtUpdate;
 
 }
diff --git a/manager/src/main/java/com/usthe/manager/pojo/entity/ParamDefine.java b/manager/src/main/java/com/usthe/manager/pojo/entity/ParamDefine.java
index 5ec4368..10ddc9e 100644
--- a/manager/src/main/java/com/usthe/manager/pojo/entity/ParamDefine.java
+++ b/manager/src/main/java/com/usthe/manager/pojo/entity/ParamDefine.java
@@ -126,12 +126,14 @@ public class ParamDefine {
      * 记录创建时间
      */
     @ApiModelProperty(value = "记录创建时间(毫秒时间戳)", example = "1612198922000", accessMode = READ_ONLY, position = 11)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtCreate;
 
     /**
      * 记录最新修改时间
      */
     @ApiModelProperty(value = "记录最新修改时间(毫秒时间戳)", example = "1612198444000", accessMode = READ_ONLY, position = 12)
+    @Column(insertable = false, updatable = false)
     private LocalDateTime gmtUpdate;
 
     @Data
diff --git a/manager/src/main/java/com/usthe/manager/service/impl/MonitorServiceImpl.java b/manager/src/main/java/com/usthe/manager/service/impl/MonitorServiceImpl.java
index 44a2b0a..a10e8c8 100644
--- a/manager/src/main/java/com/usthe/manager/service/impl/MonitorServiceImpl.java
+++ b/manager/src/main/java/com/usthe/manager/service/impl/MonitorServiceImpl.java
@@ -96,8 +96,6 @@ public class MonitorServiceImpl implements MonitorService {
         appDefine.setTimestamp(System.currentTimeMillis());
         List<Configmap> configmaps = params.stream().map(param -> {
             param.setMonitorId(monitorId);
-            param.setGmtCreate(null);
-            param.setGmtUpdate(null);
             return new Configmap(param.getField(), param.getValue(), param.getType());
         }).collect(Collectors.toList());
         appDefine.setConfigmap(configmaps);
@@ -108,8 +106,6 @@ public class MonitorServiceImpl implements MonitorService {
             monitor.setId(monitorId);
             monitor.setJobId(jobId);
             monitor.setStatus(CommonConstants.AVAILABLE);
-            monitor.setGmtCreate(null);
-            monitor.setGmtUpdate(null);
             monitorDao.save(monitor);
             paramDao.saveAll(params);
         } catch (Exception e) {
@@ -224,12 +220,8 @@ public class MonitorServiceImpl implements MonitorService {
         appDefine.setInterval(monitor.getIntervals());
         appDefine.setCyclic(true);
         appDefine.setTimestamp(System.currentTimeMillis());
-        List<Configmap> configmaps = params.stream().map(param -> {
-            param.setMonitorId(monitorId);
-            param.setGmtCreate(null);
-            param.setGmtUpdate(null);
-            return new Configmap(param.getField(), param.getValue(), param.getType());
-        }).collect(Collectors.toList());
+        List<Configmap> configmaps = params.stream().map(param ->
+                new Configmap(param.getField(), param.getValue(), param.getType())).collect(Collectors.toList());
         appDefine.setConfigmap(configmaps);
         // 更新采集任务
         jobScheduling.updateAsyncCollectJob(appDefine);
@@ -237,8 +229,6 @@ public class MonitorServiceImpl implements MonitorService {
         try {
             monitor.setJobId(preMonitor.getJobId());
             monitor.setStatus(preMonitor.getStatus());
-            monitor.setGmtCreate(null);
-            monitor.setGmtUpdate(null);
             monitorDao.save(monitor);
             paramDao.saveAll(params);
         } catch (Exception e) {
diff --git a/web-app/src/app/routes/dashboard/dashboard.component.ts b/web-app/src/app/routes/dashboard/dashboard.component.ts
index 0b154dc..6db24b3 100644
--- a/web-app/src/app/routes/dashboard/dashboard.component.ts
+++ b/web-app/src/app/routes/dashboard/dashboard.component.ts
@@ -37,7 +37,7 @@ export class DashboardComponent implements OnInit, OnDestroy {
     this.refresh();
     this.appsCountLoading = false;
     // https://stackoverflow.com/questions/43908009/why-is-setinterval-in-an-angular-service-only-firing-one-time
-    this.interval$ = setInterval(this.refresh.bind(this), 10000);
+    this.interval$ = setInterval(this.refresh.bind(this), 30000);
   }
 
   ngOnDestroy(): void {