Change Details

A recently deployed change to #recommendation-api had to be rolled back because list=mostviewed started returning zero results after midnight UTC today. This seems like a bug because the code takes steps to work around the expected AQS pageviews processing delay, and because there's no indication in the API docs that a zero-result response is to be expected. Steps to Reproduce: - Request https://en.wikipedia.org/w/api.php?action=query&list=mostviewed -- I'm assuming this will start providing results at some point today. It might depend on requesting at shortly after midnight UTC. Actual Results: zero-page result Expected Results: nonzero-page result

A recently deployed change to #recommendation-api had to be rolled back because list=mostviewed started returning zero results after midnight UTC today, causing an endpoint check to alert on an unexpected 404 response (T216750#5508340). A zero-result response from `list=mostviewed` seems like a bug because the PageViewInfo code takes steps to work around the normal AQS pageviews processing delay, and because there's no indication in the API docs that a zero-result response is to be expected. Steps to Reproduce: - Request https://en.wikipedia.org/w/api.php?action=query&list=mostviewed -- I'm assuming this will start providing results at some point today. It might depend on requesting at shortly after midnight UTC. Actual Results: zero-page result Expected Results: nonzero-page result

A recently deployed change to #recommendation-api had to be rolled back because list=mostviewed started returning zero results after midnight UTC today. This, causing an endpoint check to alert on an unexpected 404 response (T216750#5508340). A zero-result response from `list=mostviewed` seems like a bug because the PageViewInfo code takes steps to work around the expectednormal AQS pageviews processing delay, and because there's no indication in the API docs that a zero-result response is to be expected. Steps to Reproduce: - Request https://en.wikipedia.org/w/api.php?action=query&list=mostviewed -- I'm assuming this will start providing results at some point today. It might depend on requesting at shortly after midnight UTC. Actual Results: zero-page result Expected Results: nonzero-page result