We are using the graph "Number of events by action type, for all languages" of the Toledo notebook to track the number of events by action for external guidance extension. We noticed that the event counts for action init (Access the translated page) and mtinfo (View information about automatic translation) drop drastically since June 17 2019, while the event counts for other actions remain relatively stable.
Count the daily number of init event:
select CONCAT(year, '-', LPAD(month, 2, '0'), '-', LPAD(day, 2, '0')) AS date, count(1) as n_events from event.externalguidance where year=2019 and month=6 and not useragent.is_bot and event.action = 'init' group by year, month, day order by date limit 1000000 ============================= date n_events 2019-06-01 195966 2019-06-02 209519 2019-06-03 227952 2019-06-04 215546 2019-06-05 208091 2019-06-06 99218 2019-06-07 11 2019-06-08 165272 2019-06-09 210345 2019-06-10 233290 2019-06-11 239054 2019-06-12 236156 2019-06-13 235328 2019-06-14 218917 2019-06-15 200240 2019-06-16 219316 2019-06-17 51638 2019-06-18 16 2019-06-19 16 2019-06-20 8 2019-06-21 22 2019-06-22 20 2019-06-23 26 2019-06-24 18 2019-06-25 47 2019-06-26 23 2019-06-27 28 2019-06-28 27 2019-06-29 13 2019-06-30 26
We don't see any errors get logged in the eventerror table. And grafana of the ExternalGuidance schema didn't show big drop of event counts in June, so this issue doesn't seem to be the result of a front-end bug.
A-team, do you know where else we can look into to find out the source of the issue?