Thank you. I'll try it.


2013/9/26 Thomas Mortagne <[email protected]>

> You could install it as extension so that it's not loaded with each
> script. Go you admin, Add Extension and use advanced search with id
> com.gmongo:gmongo and version 1.0 (or any other version you want).
>
> Another possibility is to download gmongo and MongoDB Java Driver jars
> and put them into /WEB-INF/lib/.
>
> On Thu, Sep 26, 2013 at 10:17 AM, Quân Lê <[email protected]> wrote:
> > Thanks.
> > But now I don't know any other way to get and access MongoDB in xwiki.
> > Any links or documents?
> >
> >
> > 2013/9/26 Thomas Mortagne <[email protected]>
> >
> >> Your issue may be caused by @Grab, that download and load jars into the
> >> permgen.
> >>
> >> On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <[email protected]> wrote:
> >> > 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 <[email protected]>
> >> >
> >> >> 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 <[email protected]>
> wrote:
> >> >> > Thank you
> >> >> > It's true that the more script responing page processes, the more
> >> classes
> >> >> > are loaded.
> >> >> > Is there anyway to prevent OutOfmemory Exception happened?
> >> >> >
> >> >> >
> >> >> > 2013/9/26 Thomas Mortagne <[email protected]>
> >> >> >
> >> >> >> 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
> >> it
> >> >> >> 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
> >> be
> >> >> >> 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 <
> [email protected]>
> >> >> >> 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
> >> >> >> > <
> >> >> >>
> >> >>
> >>
> http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
> >> >> >> >
> >> >> >> > Please help! I don't understand how xwiki works on this.
> >> >> >> >
> >> >> >> > Thank in advanced.
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >> > --
> >> >> >> > View this message in context:
> >> >> >>
> >> >>
> >>
> http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Exception-OutOfMemory-tp7587262.html
> >> >> >> > Sent from the XWiki- Dev mailing list archive at Nabble.com.
> >> >> >> > _______________________________________________
> >> >> >> > devs mailing list
> >> >> >> > [email protected]
> >> >> >> > http://lists.xwiki.org/mailman/listinfo/devs
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> --
> >> >> >> Thomas Mortagne
> >> >> >> _______________________________________________
> >> >> >> devs mailing list
> >> >> >> [email protected]
> >> >> >> http://lists.xwiki.org/mailman/listinfo/devs
> >> >> >>
> >> >> >
> >> >> >
> >> >> >
> >> >> > --
> >> >> > ======Lê Minh Quân======
> >> >> > _______________________________________________
> >> >> > devs mailing list
> >> >> > [email protected]
> >> >> > http://lists.xwiki.org/mailman/listinfo/devs
> >> >>
> >> >>
> >> >>
> >> >> --
> >> >> Thomas Mortagne
> >> >> _______________________________________________
> >> >> devs mailing list
> >> >> [email protected]
> >> >> http://lists.xwiki.org/mailman/listinfo/devs
> >> >>
> >> >
> >> >
> >> >
> >> > --
> >> > ======Lê Minh Quân======
> >> > _______________________________________________
> >> > devs mailing list
> >> > [email protected]
> >> > http://lists.xwiki.org/mailman/listinfo/devs
> >>
> >>
> >>
> >> --
> >> Thomas Mortagne
> >> _______________________________________________
> >> devs mailing list
> >> [email protected]
> >> http://lists.xwiki.org/mailman/listinfo/devs
> >>
> >
> >
> >
> > --
> > ======Lê Minh Quân======
> > _______________________________________________
> > devs mailing list
> > [email protected]
> > http://lists.xwiki.org/mailman/listinfo/devs
>
>
>
> --
> Thomas Mortagne
> _______________________________________________
> devs mailing list
> [email protected]
> http://lists.xwiki.org/mailman/listinfo/devs
>



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