i fixed something in the localizer that it doesnt add the page id to the
cachekey string
that was your problem
everypage that was created also creates an localizer entry that is just
plain wrong.
So the pageid is not in the path anymore.. i think this is what really
caused your constant growing cache
On Wed, May 14, 2008 at 5:04 PM, Quan Zhou <[EMAIL PROTECTED]> wrote:
> Yes , it would be a bit slower. I'm going to make more test to see what
> havn't store in cache.
> Maybe i can caculate how many percents it effect my application performance
> after i deploy it in a high load circumstance.
>
> I'm not sure about what you said about your fix for not including page.
> can you make it some clear? thanks very much.
>
>
> 2008/5/14 Johan Compagner <[EMAIL PROTECTED]>:
>
> > ok so you dont store the tested cacheKey 's that returned null..
> > so that could result in a bit slower access because it is tried to
> resolve
> > everytime
> >
> > I do think that my fix for not including the page is solving your real
> mem
> > leak problem
> >
> > johan
> >
> >
> > On Wed, May 14, 2008 at 2:03 PM, Quan Zhou <[EMAIL PROTECTED]> wrote:
> >
> > > getResourceSettings().setLocalizer(new Localizer() {
> > > @Override
> > > public void putIntoCache(final String cacheKey,final String
> > > string) {
> > > if (string != null && cacheKey!=null)
> > > super.putIntoCache(cacheKey, string);
> > > }
> > > });
> > >
> > >
> > >
> > > 2008/5/14 Johan Compagner <[EMAIL PROTECTED]>:
> > >
> > > > but what did you do there in that method?
> > > > nothing? you dont cache anything anymore?
> > > >
> > > > On Wed, May 14, 2008 at 10:29 AM, Quan Zhou <[EMAIL PROTECTED]>
> > > wrote:
> > > >
> > > > > Hello everyone.
> > > > >
> > > > > I override Localizer.putIntoCache method. and it really reduce the
> > > > > heapsize
> > > > > usage of Localizer.
> > > > >
> > > > > The application is more stable now although the key remains large.
> > > > >
> > > > > Hope we can find a way to shorter the key length.
> > > > >
> > > > > thanks everyone.
> > > > >
> > > > > 2008/5/13 Eirik Rude <[EMAIL PROTECTED]>:
> > > > >
> > > > > >
> > > > > > A soft reference is very common for this type of thing. I know
> > some
> > > of
> > > > > > ICU's
> > > > > > resources are stored this way.
> > > > > >
> > > > > >
> > > > > >
> > > > > > Jonathan Locke wrote:
> > > > > > >
> > > > > > >
> > > > > > > maybe localizer should limit its size or use a soft reference
> > > cache?
> > > > > > >
> > > > > > >
> > > > > > > Johan Compagner wrote:
> > > > > > >>
> > > > > > >> Can you really see what it holds?
> > > > > > >> Almost 2G in memory in localizer is extreme... Thats really a
> > lot
> > > of
> > > > > > >> strings..
> > > > > > >> You could try to read that dump with yourkit if your current
> one
> > > > > > >> doesnt show enough.
> > > > > > >>
> > > > > > >> On 5/9/08, Quan Zhou <[EMAIL PROTECTED]> wrote:
> > > > > > >>> Hello everyone.
> > > > > > >>>
> > > > > > >>> I recently develop my App use Wicket1.3.3. It's my first time
> > to
> > > > use
> > > > > > >>> this
> > > > > > >>> framework and I feel it's really really a perfect framework
> for
> > > me.
> > > > > > >>> My app support both Simplified Chinese , Traditional Chinese,
> I
> > > > > > >>> implement
> > > > > > >>> this with Wicket i18n feature.
> > > > > > >>> With the load increasing these days, I found my app would
> > become
> > > > > very
> > > > > > >>> lag
> > > > > > >>> abount every 24 hours ,so that i would only restart it
> > > > > > >>> without any choice.
> > > > > > >>> when I found the lag, My log records many Exceptions like :
> > > > > > >>> "after 1 minute the Pagemap null is still locked by:
> > > > > > >>> Thread[http-8080-321,5,main], giving
> > > > > > >>> up trying to get the page for path xxx"
> > > > > > >>>
> > > > > > >>> I check the JVM status with jstat -gc , It tells that the
> > > Heapsize
> > > > > is
> > > > > > >>> full
> > > > > > >>> even after full GC.
> > > > > > >>> My VM paraemter is "-Xms2000m -Xmx2000m -XX:MaxNewSize=250m
> > > > > > >>> -XX:MaxPermSize=250m"
> > > > > > >>> My deploy server has 2*CPU and 4G memory, Redhat AS4 OS +
> > tomcat
> > > > > 6.0.
> > > > > > >>> There're 2000 sessions on the day while the timeout threshold
> > is
> > > 15
> > > > > > >>> minutes.
> > > > > > >>> So i dump the whole heapsize with the command " jmap
> > > > > > >>> -dump:live,format=b,file=3.dump.hprof processid"
> > > > > > >>> and i truely get a 2G size dump files. I use SAP Memory
> Analyer
> > > to
> > > > > see
> > > > > > >>> what're stored in HeapMemory.
> > > > > > >>> and I found a strange number of Retained Heap usage:
> > > > > > >>> Classname
> > > > > > >>> ShallowHeap
> > > > > RetainHeap
> > > > > > >>> RetainedHeap%
> > > > > > >>> [EMAIL PROTECTED]
> > > > > > >>> 16
> > > > > > >>> 1,755,070,352 87.64%
> > > > > > >>> [EMAIL PROTECTED]
> ..
> > > > > > >>> 48 1,755,070,336
> > > > > 87.69%
> > > > > > >>>
> > > [EMAIL PROTECTED]
> > > > ...
> > > > > > >>> 33,554,448
> > > > > > >>> 1,755,069,632
> 87.69%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> -
> > > > [EMAIL PROTECTED]
> > > > > > ...
> > > > > > >>> 24 3928
> > > > > > >>> 0.00%
> > > > > > >>> + 2,863,659 more...
> > > > > > >>>
> > > > > > >>> Is that means that the Localizer Object used most of the heap
> > > size?
> > > > > > >>> or Is this number normal for Wicket App?
> > > > > > >>>
> > > > > > >>> I wonder whether I forget to release the memory by my
> mis-using
> > > of
> > > > > > i18n
> > > > > > >>> feature?
> > > > > > >>> Is there any attentions I must pay to when dealing with
> > > Localizer?
> > > > > > >>>
> > > > > > >>> This problem annoys me more the 2 weeks. I really need some
> > > help.
> > > > > > Thanks
> > > > > > >>> .
> > > > > > >>>
> > > > > > >>
> > > > > > >>
> > > > ---------------------------------------------------------------------
> > > > > > >> To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > > > > >> For additional commands, e-mail: [EMAIL PROTECTED]
> > > > > > >>
> > > > > > >>
> > > > > > >>
> > > > > > >
> > > > > > >
> > > > > >
> > > > > > --
> > > > > > View this message in context:
> > > > > >
> > > > >
> > > >
> > >
> >
> http://www.nabble.com/Why-Localizer-Retained-so-many-heapsize--tp17142582p17199950.html
> > > > > > Sent from the Wicket - User mailing list archive at Nabble.com.
> > > > > >
> > > > > >
> > > > > >
> > > ---------------------------------------------------------------------
> > > > > > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > > > > > For additional commands, e-mail: [EMAIL PROTECTED]
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
