フリー問題

問題文

A new version must reach a small share of real traffic first so that failures can be compared before a wide release. Which strategy is that, and what decides the next step?

選択肢

1. The strategy is a blue green swap, and the decision to widen comes from the planned start time of the small share.
2. The strategy is a blue green swap, and the decision to widen comes from the measured error rate of the small share.
3. The strategy is a gradual canary release, and the decision to widen comes from the planned start time of the small share.
4. The strategy is a gradual canary release, and the decision to widen comes from the measured error rate of the small share.