我们正在使用kubernetes，它在Influxdb中收集数据 . 流入的值以grafana显示 .

对于我们正在创建的新仪表板，我们使用grafana的查询并在node.js中实现它们 . 然而，节点中的查询返回值为grafana中显示的值的2倍 .

我们用来测试的查询是：

q=SELECT SUM(\"value\") FROM \"cpu/usage_rate\" WHERE time > now() - 5m 
AND \"pod_namespace\" =~ /ournamespace/ 
AND \"pod_name\" =~ /ourSinglePod/   GROUP BY time(1m)

卷曲版本，便于复制：

curl -G http://10.144.1.5:8086/query?pretty=true --data-urlencode "db=k8s" --data-urlencode "q=SELECT SUM(\"value\") FROM \"cpu/usage_rate\" WHERE time > now() - 5m AND \"pod_namespace\" =~ /adserving/ AND \"pod_name\" =~ /ads-357196871-qek76/   GROUP BY time(1m)"

结果：

{
    "results": [
        {
            "series": [
                {
                    "name": "cpu/usage_rate",
                    "columns": [
                        "time",
                        "sum"
                    ],
                    "values": [
                        [
                            "2017-01-26T18:51:00Z",
                            null
                        ],
                        [
                            "2017-01-26T18:52:00Z",
                            156
                        ],
                        [
                            "2017-01-26T18:53:00Z",
                            162
                        ],
                        [
                            "2017-01-26T18:54:00Z",
                            148
                        ],
                        [
                            "2017-01-26T18:55:00Z",
                            156
                        ],
                        [
                            "2017-01-26T18:56:00Z",
                            154
                        ]
                    ]
                }
            ]
        }
    ]
}

grafana中图表中显示的值是这些值的一半 .

kubernetes influxdb grafana