Stackdriver Monitoring imposes the following limits by default. Contact us if you require more capacity.
- Your custom metrics can have up to 100000 active time series per project.*
- You can have up to 250 custom metric descriptors per project.
*A time series is active if you have written data points to it within the last 24 hours. This limit is independent of the allotments for custom metric time series in the Stackdriver pricing tiers.
Stackdriver Monitoring API quotas and limits
See the API dashboard for your current API activity. Click on an API and select Quotas to see your quota.
Page tokens returned by the Stackdriver Monitoring API are valid for 24 hours.
Data retention policy
Time series data points are kept for 6 weeks and then deleted.