In Visitor Log, Ecommerce log, Media log, etc. it is currently possible to select all in the Rows selector, meaning that all visits will be displayed in the log.

The idea was to allow users to export "All" the visitor log data for a day. But since Matomo 3.4.0, a new export feature in #11958 is available, which lets user select the number of rows to export.

Therefore, it is not needed anymore to offer "All" in the rows selector for the purpose of exporting all data.

The problem

For many websites, selecting "All" will actually cause Matomo to time out with the following error:

Error: {"type":1,"message":"Maximum execution time of 240 seconds Exceeded", 
"file":"core\/EventDispatcher.php","line":105}
at index.php?forceView=1&viewDataTable=VisitorLog&module=Live&action=getLastVisitsDetails&small=1&idSite=21&period=day&date=2018-04-24&showtitle=1&random=2790

Suggested steps

• Remove all from the rows selector from the Visitor Log, Ecommerce log, Media log, etc.
• In the update, also delete all users' viewdatatable visualisations settings for Visitor log(s) where the setting includes "showing all rows". This way, any user who has already selected "All" will be reset to showing 25 rows or so by default.

As a result, we would expect a lot less timeouts triggered in Matomo.