For a new measurement, the following bucket criteria must be met to consider inserting the measurement into it:

• The new measurement's metadata matches the bucket metadata.
• The new measurement's timestamp is the same or later than the last measurement's timestamp in the bucket.

This can return multiple eligible buckets. We pick the bucket where the time difference is the smallest between the new measurement's timestamp and the last measurement's timestamp in each eligible bucket. This approach will minimize the number of open buckets per metadata.