Aws cloudwatch get.metrics 具有多个维度

Question

我正在尝试使用命令 aws cloudwatch get-metrics 来获取“DiskSpaceUtilization”，但结果为空..

"Datapoints": [],
"Label": "DiskSpaceUtilization"

我注意到如果我使用

aws cloudwatch list-metrics --namespace mymetric

度量有多个维度！

        "Namespace": "mymetric",
        "Dimensions": [
            {
                "Name": "MountPath",
                "Value": "/"
            },
            {
                "Name": "InstanceId",
                "Value": "i-aaaaaaa"
            },
            {
                "Name": "Filesystem",
                "Value": "/dev/xvda1"
            }
        ],
        "MetricName": "DiskSpaceUtilization"

有人知道我怎样才能检索这个指标？我必须在命令中输入多少维？

谢谢！

Answer 1

最后我找到了解决方案..

aws cloudwatch get-metric-statistics --namespace MyCustomMetric --metric-name DiskSpaceUtilization --dimensions Name="MountPath",Value="/dev" Name="InstanceId",Value="i-XXXXX" Name="Filesystem",Value="devtmpfs" --start-time 2016-12-23T7:10 --end-time 2016-12-23T7:20 --period 600 --statistic Average