Hi all,

On Tuesday, December 22, from 15-16 UTC (10-11am EST, 7-8am PST), superset.wikimedia.org will be offline to upgrade the hardware and add caching as part of https://phabricator.wikimedia.org/T268219.

When the upgrade is complete, by default, charts will be cached for 12 hours. As you can see in the following screenshot, you can view whether a chart is cached from the overflow menu, and you'll have the option to force refresh it.

Screen Shot 2020-12-16 at 11.40.51 AM.png

The time that any given chart will be cached is configurable via the "edit chart" menu item. For example, set the cache timeout to 3600 seconds for data to cache for an hour.


Reply to this email or reach out to razzi or the #wikimedia-analytics IRC channel if you have any questions or concerns about this migration. As always, the maintenance schedule can be viewed here.