在CloudWatch中为SNS保留了多长时间的指标？

Question

I can't seem to find this info anywhere.

Specifically, I'm looking at metrics like NumberOfMessagesPublished and NumberOfNotificationsDelivered . How far back does CloudWatch retain this data?

Answer 1

2 weeks according to Monitoring Your Instances Using CloudWatch

These statistics are recorded for a period of two weeks, so that you can access historical information and gain a better perspective on how your web application or service is performing.

If you want to archive metrics beyond 2 weeks

If you want to archive metrics beyond 2 weeks you can do so by calling mon-get-stats command from the command line and storing the results in Amazon S3 or Amazon SimpleDB.