Item13190: SiteChanges cause a high load on the server

I just checked System.SiteChanges and nearly DoS'ed foswiki.org. We probably should plain remove it from the standard distro. See also Item2235. I make this an urgent task to discuss this on the next release meeting.

A sensible way to render SiteChanges would be to make use of SolrPlugin which comes with a dedicated view template for it as an overlay to the non-performing standard implementation (demo).

I've disabled it using NoContentViewTemplate here on foswiki.org for now ...

-- MichaelDaum - 08 Jan 2015

I wonder if instead of SEARCH we implemented a macro based on Store's eachChangeSince it might be faster. Why do any searching if we have a ready list of changes. That would speed up WebChanges as well.

-- GeorgeClark - 08 Jan 2015

A better implementation based on .changes or event.log information is out of scope for now.

-- MichaelDaum - 13 Jan 2015

I've applied NoContentViewTemplate to FoswikiSiteChanges as well since I just tried it and it time out. Also removed (hid) links to in WebLeftBarFoswikiWebsList and other places where where I found links to it (About.WebHome, Community.HowYouCanHelp).

-- LynnwoodBrown - 13 Jan 2015

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