aws技术链接

S3:

https://docs.aws.amazon.com/s3/?id=docs_gateway

emrfs:

https://docs.aws.amazon.com/emr/latest/ManagementGuide/clone-console.html

缩小ebs容量：

https://cloudacademy.com/blog/amazon-ebs-shink-volume/

监控s3流量：

https://docs.aws.amazon.com/zh_cn/AmazonS3/latest/dev/cloudwatch-monitoring.html

https://docs.aws.amazon.com/zh_cn/AmazonS3/latest/user-guide/configure-metrics.html