Re: [xwiki-devs] Frrequently AJAX request caused PernGen Exception OutOfMemory

I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.* def data = [] // a list contain data def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close() // For GC dbConn = null gmongoObject = null // Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString() // For GC slurper = null builder = null {{/groovy}} 2013/9/26 Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt; > Well without changing your script all I can suggest is to allocate > more permgen to java using > > -XX:MaxPermSize=<enough memory>M > > > On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê &lt;lequan.moon(a)gmail.com&gt; wrote: > > Thank you > > It's true that the more script responing page processes, the more

> > are loaded. > > Is there anyway to prevent OutOfmemory Exception happened? > > > > > > 2013/9/26 Thomas Mortagne &lt;thomas.mortagne(a)xwiki.com&gt; > > > >> I doubt it has anything to do with the request itself, it's probably > >> more related to what your page is doing. From what I understand your > >> page create directly or indirectly new classes. Note that most script > >> languages compile the script into a new Java class before executing

> >> so if you execute a lot of very big scripts at the same time it can > >> probably be pretty costy for the permgen. Something else that could

> >> costy is if you load a jar in this page for example with the "jars" > >> property of script macros. > >> > >> On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon &lt;lequan.moon(a)gmail.com&gt; > >> wrote: > >> > Hi, > >> > I'm making an application that make an AJAX request frequently from > page > >> to > >> > page in xwiki. > >> > About 1 per 10s > >> > The request look like this: > >> > > >> > $.ajax({ > >> > type: "GET", > >> > crossDomain: true, > >> > url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", > >> > dataType: 'text', > >> > data: data2send, > >> > success: function(result) {...}, > >> > error: function(xhr, status, error) { > >> > console.log(error) > >> > console.log(status) > >> > console.log(xhr) > >> > } > >> > }); > >> > > >> > And respone is simple as a text or something like a JSON Map, List. > >> > I took a look at jconsole and here it is > >> > < > >> >

> >> > > >> > Please help! I don't understand how xwiki works on this. > >> > > >> > Thank in advanced. > >> > > >> > > >> > > >> > > >> > -- > >> > View this message in context: > >> >

-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs