IO-Event 去除面板部分环境变量为空的值

Author: 1473371932

dashboards/DeepFlow-Templates/IO-Event.json

@@ -407,15 +407,15 @@
           "datasource": {
             "uid": "$datasource"
           },
-          "definition": "{\"database\":\"flow_metrics\",\"sql\":\"SELECT pod_cluster as `value`, pod_cluster as `display_name` FROM `network.1m` WHERE `display_name` != '' AND time >= ${__from:date:seconds} AND time <= ${__to:date:seconds} GROUP BY `value` LIMIT 999999999999\",\"useDisabled\":false,\"useAny\":true}",
+          "definition": "{\"database\":\"flow_metrics\",\"sql\":\"SELECT pod_cluster as `value`, pod_cluster as `display_name` FROM `network.1m` WHERE exist(pod_cluster) AND time >= ${__from:date:seconds} AND time <= ${__to:date:seconds} GROUP BY `value` LIMIT 999999999999\",\"useDisabled\":false,\"useAny\":true}",
           "hide": 0,
           "includeAll": false,
           "multi": true,
           "name": "cluster",
           "options": [],
           "query": {
             "database": "flow_metrics",
-            "sql": "SELECT pod_cluster as `value`, pod_cluster as `display_name` FROM `network.1m` WHERE `display_name` != '' AND time >= ${__from:date:seconds} AND time <= ${__to:date:seconds} GROUP BY `value` LIMIT 999999999999",
+            "sql": "SELECT pod_cluster as `value`, pod_cluster as `display_name` FROM `network.1m` WHERE exist(pod_cluster) AND time >= ${__from:date:seconds} AND time <= ${__to:date:seconds} GROUP BY `value` LIMIT 999999999999",
             "useAny": true,
             "useDisabled": false
           },
@@ -565,4 +565,4 @@
     "uid": "IO_Event",
     "version": 2,
     "weekStart": ""
-  }
+  }