When the alert is executed, if the alarm group is not bound to the alert plug-in, the alert status is updated to fail.

dolphinscheduler-alert/src/main/java/org/apache/dolphinscheduler/alert/runner/AlertSender.java

@@ -75,13 +75,14 @@ public class AlertSender {
             List<AlertPluginInstance> alertInstanceList = alertDao.listInstanceByAlertGroupId(alertGroupId);
             if (CollectionUtils.isEmpty(alertInstanceList)) {
                 logger.error("send alert msg fail,no bind plugin instance.");
-                return;
+                alertDao.updateAlert(AlertStatus.EXECUTION_FAILURE, "no bind plugin instance", alert.getId());
+                continue;
             }
             AlertData alertData = new AlertData();
             alertData.setId(alert.getId())
-                .setContent(alert.getContent())
+                    .setContent(alert.getContent())
-                .setLog(alert.getLog())
+                    .setLog(alert.getLog())
-                .setTitle(alert.getTitle());
+                    .setTitle(alert.getTitle());
 
             for (AlertPluginInstance instance : alertInstanceList) {
 
@@ -107,7 +108,7 @@ public class AlertSender {
         List<AlertPluginInstance> alertInstanceList = alertDao.listInstanceByAlertGroupId(alertGroupId);
         AlertData alertData = new AlertData();
         alertData.setContent(title)
-            .setTitle(content);
+                .setTitle(content);
 
         boolean sendResponseStatus = true;
         List<AlertSendResponseResult> sendResponseResults = new ArrayList<>();
@@ -126,7 +127,7 @@ public class AlertSender {
         for (AlertPluginInstance instance : alertInstanceList) {
             AlertResult alertResult = this.alertResultHandler(instance, alertData);
             AlertSendResponseResult alertSendResponseResult = new AlertSendResponseResult(
-                Boolean.parseBoolean(String.valueOf(alertResult.getStatus())), alertResult.getMessage());
+                    Boolean.parseBoolean(String.valueOf(alertResult.getStatus())), alertResult.getMessage());
             sendResponseStatus = sendResponseStatus && alertSendResponseResult.getStatus();
             sendResponseResults.add(alertSendResponseResult);
         }

dolphinscheduler-api/src/main/java/org/apache/dolphinscheduler/api/service/impl/AlertPluginInstanceServiceImpl.java

@@ -223,7 +223,7 @@ public class AlertPluginInstanceServiceImpl extends BaseService implements Alert
         if (CollectionUtils.isEmpty(idsList)) {
             return false;
         }
-        Optional<String> first = idsList.stream().filter(k -> Arrays.asList(k.split(",")).contains(id)).findFirst();
+        Optional<String> first = idsList.stream().filter(k -> null != k && Arrays.asList(k.split(",")).contains(id)).findFirst();
         return first.isPresent();
     }