Hi, > On 28 Feb 2017, at 22:18, ktc <[email protected]> wrote: > > Devs, > > In MediaWiki there are preprocessor limits > <https://en.wikipedia.org/wiki/Wikipedia:Template_limits> that track how > complex a page is so that rendering can gracefully bail out if any of these > limits are broken to keep the server stable. MediaWiki will include this > information in a comment in the rendered page like: > <!-- > NewPP limit report > Parsed by mw1270 > Cached time: 20170223033729 > Cache expiry: 2592000 > Dynamic content: false > CPU time usage: 0.124 seconds > Real time usage: 0.170 seconds > Preprocessor visited node count: 468/1000000 > Preprocessor generated node count: 0/1500000 > Post‐expand include size: 50512/2097152 bytes > Template argument size: 37/2097152 bytes > Highest expansion depth: 7/40 > Expensive parser function count: 0/500 > Lua time usage: 0.039/10.000 seconds > Lua memory usage: 1.66 MB/50 MB > --> > > We have cases where our users will want to include pages as templates into > other pages and these can get pretty deeply nested as well as contain some > complex content that is expensive and/or takes a long time to render. We > want to make sure that a user cannot bring our servers down accidentally or > intentionally due to using too many expensive/long running inclusions on > their pages. Testing this on our instance of XWiki is showing that XWiki > will run until a) the page is finally able to render which could be minutes > in some cases or b) the server runs out of memory and falls over. > > I have been looking but have been unable to find if XWiki has this sort of > feature to turn on and configure. I was also unable to find it in the XWiki > Jira or in this forum so I wanted to ask the Devs directly. Does this sort > of limiting exist on XWiki? And if so, how can I turn it on?
No there isn’t. The closest I can think of is http://extensions.xwiki.org/xwiki/bin/view/Extension/GroovyModuleCommons#HTimedInterruptCustomizer Do you know other java programs who do this? How would you implement this in java? AFAIK it’s not possible. IMO you’d need a custom JVM to guarantee this since aborting a thread is not something guaranteed in java. Thanks -Vincent > Thanks! > > View this message in context: > http://xwiki.475771.n2.nabble.com/Page-Complexity-limiter-tp7602880.html > Sent from the XWiki- Dev mailing list archive at Nabble.com.
