Question

我想获取EC2实例的Cloudmetrics数据，以便我可以使用这些数据绘制图形并将其显示在我的Android设备上。我怎么做？是否有相同的示例程序或教程？

提前致谢。

这就是我在做的事情：

private static void findCloudWatchData()  {

    AmazonCloudWatchClient cloudWatch = new AmazonCloudWatchClient(new BasicAWSCredentials(AccessKey, SecretKey));
    cloudWatch.setEndpoint("monitoring.us-east-1.amazonaws.com");
    long offsetInMilliseconds = 1000 * 60 * 60 * 24;
    Dimension instanceDimension = new Dimension();
    instanceDimension.setName("instanceid");
    instanceDimension.setValue(instanceid);

    GetMetricStatisticsRequest request = new GetMetricStatisticsRequest()
            .withStartTime(new Date(new Date().getTime() - offsetInMilliseconds))
            .withNamespace("AWS/EC2")
            .withPeriod(60 * 60)
            .withMetricName("CPUUtilization")
            .withStatistics("Average")
            .withDimensions(Arrays.asList(instanceDimension))
            .withEndTime(new Date());

    GetMetricStatisticsResult getMetricStatisticsResult = cloudWatch.getMetricStatistics(request);
    }

Answer 1

正如您使用 android 标记了您的问题，我假设您要在 Android-App 中为您的EC2实例获取CloudWatch-Metrics。所以这对你来说可能是一个很好的起点：

Getting Started with the AWS SDK for Android。

你需要：

下载AWS SDK for Android
为AWS创建访问密钥（通过IAM）
阅读aws-android-sdk-VERSION-cloudwatch.jar
开始使用CloudWatch中提取的数据

此致

汤姆

Answer 2

我想你只是阅读数据和绘制图表而感到震惊。

private static void findCloudWatchData()  {

LinkedHashMap<Date,Double> map=new HashMap<Date,Double>();
AmazonCloudWatchClient cloudWatch = new AmazonCloudWatchClient(new BasicAWSCredentials(AccessKey,     SecretKey));
cloudWatch.setEndpoint("monitoring.us-east-1.amazonaws.com");
long offsetInMilliseconds = 1000 * 60 * 60 * 24;
Dimension instanceDimension = new Dimension();
instanceDimension.setName("instanceid");
instanceDimension.setValue(instanceid);

GetMetricStatisticsRequest request = new GetMetricStatisticsRequest()
        .withStartTime(new Date(new Date().getTime() - offsetInMilliseconds))
        .withNamespace("AWS/EC2")
        .withPeriod(60 * 60)
        .withMetricName("CPUUtilization")
        .withStatistics("Average")
        .withDimensions(Arrays.asList(instanceDimension))
        .withEndTime(new Date());

GetMetricStatisticsResult getMetricStatisticsResult = cloudWatch.getMetricStatistics(request);
}

//To read the Data
for (Datapoint dp : result.getDatapoints()) {
    map.put(dp.getTimeStamp(), dp.getAverage());   //or getMaximum() or whatever Statistics you are interested in. You can also maintain a list of the statistics you are interested in. Ex: request.setStatistics(list) 
}

请注意，数据点不是有序的。对HashMap进行排序并绘制图形。

Answer 3

我发现AWS/Billing指标仅在一个地区“生活” - us-east-1 。

此外，如果您尝试从CloudWatch获取超过1440个数据点，AWS CLI（aws cloudwatch get-metric-statistics）将会出错。如果遇到它，请设置较大的--period。

与您在Android上使用Java实现的类似，我使用Python / matplotlib为OS Windows编写了EC2_Metrics_Plotter。

如何获取EC2实例的CloudWatch指标数据

3 个答案: