Hi all! In the last weeks I've often experienced this error
Our servers are currently under maintenance or experiencing a technical problem. Please try again in a few minutes.
See the error message at the bottom of this page for more information.
If you report this error to the Wikimedia System Administrators, please include the details below.
PHP fatal error:
entire web request took longer than 60 seconds and timed out//
when I tried to load a diff on pages bigger than 400000 bytes. Examples: https://www.wikidata.org/w/index.php?title=Wikidata:Database_reports/Constraint_violations/P301&diff=923287757&oldid=910429669, https://www.wikidata.org/w/index.php?title=Wikidata%3ADatabase_reports%2FConstraint_violations%2FP301&type=revision&diff=923287757&oldid=907115544. It's very annoying when trying to see diffs in big Constraint reports.
The same problem doesn't happen e.g. on Italian Wikipedia. Examples: https://it.wikipedia.org/w/index.php?title=Storia_dell%27antico_Egitto&diff=103720225&oldid=103073527, https://it.wikipedia.org/w/index.php?title=Storia_dell%27antico_Egitto&type=revision&diff=103720225&oldid=97606863.
Maybe this problem can be compared to that of https://phabricator.wikimedia.org/T221380.