Can I send measurements from the past (or future) to Librato?

The answer is it depends. Currently, our API will reject measurements that are more than 120 minutes in the past, or 30 minutes into the future. If you see a message like measure_time is too far in the past or measure_time is too far in the future , you’re hitting this limit. The reason for this is to prevent issues with data integrity, such as overwriting past values, sending in bad timestamps, clock drift, etc.

We do have a beta feature called historical import available that will allow you to load historical data. Please drop us a line at support@librato.com if you’re interested.