告警概览:告警Top指标 ", "dimensionDesc": "云主机" }, { "service": "ecs", "dimension": "ecs", "metric": "cpu_util", "count": 25, "metricDesc": "CPU使用率", "serviceDesc": "云主机", "dimensionDesc": "云主机" }, { "service": "elb", "dimension": "elb", "metric": "lb_newcreate", "count":