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Posted to users@wicket.apache.org by oliverw <ol...@weichhold.com> on 2008/02/05 09:43:55 UTC
How many page versions will exist?
As far as I have understood the workings, Wicket maintains one PageMap per
Browser Windows in the Session Store and a number of Page Versions per
PageMap for every architectural change of said page. The current version of
the page resides in memory while oder versions will be serialized to disk
into a temp file.
If that's correct, I'm wondering how many versions of the page will Wicket
maintain? Is there a fixed amount? Will there be an unlimited amount of
versions until the server runs out of temp space? Could someone lighten me
up? :)
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Re: How many page versions will exist?
Posted by Johan Compagner <jc...@gmail.com>.
yes old pages will be overwritten by new onces
johan
On Feb 5, 2008 10:43 AM, oliverw <ol...@weichhold.com> wrote:
>
> Thanks Johan. So if the the maximum number of generations or storage space
> is
> exceeded - whichever comes first - older versions get discarded and the
> user
> will not be able to navigate to those versions using the back button.
>
>
> Johan Compagner wrote:
> >
> > see:
> >
> >
> > /**
> >
> > * Creates a new {@link DiskPageStore} instance.
> >
> > *
> >
> > * *@param* maxSizePerPagemap
> >
> > * the maximum size of pagemap file (in bytes)
> >
> > * *@param* maxSizePerSession
> >
> > * the maximum size of session (in bytes)
> >
> > * *@param* fileChannelPoolCapacity
> >
> > * the maximum number of concurrently opened files (higher number
> improves
> >
> > * performance under heavy load).
> >
> > *
> >
> > */
> >
> > *public* DiskPageStore(*int* maxSizePerPagemap, *int* maxSizePerSession,
> *
> > int* fileChannelPoolCapacity)
> >
> > {
> >
> > *this*(*getDefaultFileStoreFolder*(), maxSizePerPagemap,
> > maxSizePerSession,
> >
> > fileChannelPoolCapacity);
> >
> > }
> >
> >
> >
> > johan
> >
> >
> > On Feb 5, 2008 9:43 AM, oliverw <ol...@weichhold.com> wrote:
> >
> >>
> >> As far as I have understood the workings, Wicket maintains one PageMap
> >> per
> >> Browser Windows in the Session Store and a number of Page Versions per
> >> PageMap for every architectural change of said page. The current
> version
> >> of
> >> the page resides in memory while oder versions will be serialized to
> disk
> >> into a temp file.
> >>
> >> If that's correct, I'm wondering how many versions of the page will
> >> Wicket
> >> maintain? Is there a fixed amount? Will there be an unlimited amount of
> >> versions until the server runs out of temp space? Could someone lighten
> >> me
> >> up? :)
> >>
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
> >> Sent from the Wicket - User mailing list archive at
> >> Nabble.com <http://nabble.com/><http://nabble.com/>
> >> .
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>
> >>
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15286570.html
> Sent from the Wicket - User mailing list archive at Nabble.com<http://nabble.com/>
> .
>
>
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Re: How many page versions will exist?
Posted by oliverw <ol...@weichhold.com>.
Thanks Johan. So if the the maximum number of generations or storage space is
exceeded - whichever comes first - older versions get discarded and the user
will not be able to navigate to those versions using the back button.
Johan Compagner wrote:
>
> see:
>
>
> /**
>
> * Creates a new {@link DiskPageStore} instance.
>
> *
>
> * *@param* maxSizePerPagemap
>
> * the maximum size of pagemap file (in bytes)
>
> * *@param* maxSizePerSession
>
> * the maximum size of session (in bytes)
>
> * *@param* fileChannelPoolCapacity
>
> * the maximum number of concurrently opened files (higher number improves
>
> * performance under heavy load).
>
> *
>
> */
>
> *public* DiskPageStore(*int* maxSizePerPagemap, *int* maxSizePerSession, *
> int* fileChannelPoolCapacity)
>
> {
>
> *this*(*getDefaultFileStoreFolder*(), maxSizePerPagemap,
> maxSizePerSession,
>
> fileChannelPoolCapacity);
>
> }
>
>
>
> johan
>
>
> On Feb 5, 2008 9:43 AM, oliverw <ol...@weichhold.com> wrote:
>
>>
>> As far as I have understood the workings, Wicket maintains one PageMap
>> per
>> Browser Windows in the Session Store and a number of Page Versions per
>> PageMap for every architectural change of said page. The current version
>> of
>> the page resides in memory while oder versions will be serialized to disk
>> into a temp file.
>>
>> If that's correct, I'm wondering how many versions of the page will
>> Wicket
>> maintain? Is there a fixed amount? Will there be an unlimited amount of
>> versions until the server runs out of temp space? Could someone lighten
>> me
>> up? :)
>>
>> --
>> View this message in context:
>> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
>> Sent from the Wicket - User mailing list archive at
>> Nabble.com<http://nabble.com/>
>> .
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
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Re: How many page versions will exist?
Posted by Johan Compagner <jc...@gmail.com>.
see:
/**
* Creates a new {@link DiskPageStore} instance.
*
* *@param* maxSizePerPagemap
* the maximum size of pagemap file (in bytes)
* *@param* maxSizePerSession
* the maximum size of session (in bytes)
* *@param* fileChannelPoolCapacity
* the maximum number of concurrently opened files (higher number improves
* performance under heavy load).
*
*/
*public* DiskPageStore(*int* maxSizePerPagemap, *int* maxSizePerSession, *
int* fileChannelPoolCapacity)
{
*this*(*getDefaultFileStoreFolder*(), maxSizePerPagemap, maxSizePerSession,
fileChannelPoolCapacity);
}
johan
On Feb 5, 2008 9:43 AM, oliverw <ol...@weichhold.com> wrote:
>
> As far as I have understood the workings, Wicket maintains one PageMap per
> Browser Windows in the Session Store and a number of Page Versions per
> PageMap for every architectural change of said page. The current version
> of
> the page resides in memory while oder versions will be serialized to disk
> into a temp file.
>
> If that's correct, I'm wondering how many versions of the page will Wicket
> maintain? Is there a fixed amount? Will there be an unlimited amount of
> versions until the server runs out of temp space? Could someone lighten me
> up? :)
>
> --
> View this message in context:
> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
> Sent from the Wicket - User mailing list archive at Nabble.com<http://nabble.com/>
> .
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
Re: How many page versions will exist?
Posted by Martijn Dashorst <ma...@gmail.com>.
When you don't let your sessions expire or have a very long session time
out, you might run into disk space problems, though the moment you have 1TB
of disk space allocated for all your sessions, I suppose you can afford to
buy more disk space.
Martijn
On 2/5/08, oliverw <ol...@weichhold.com> wrote:
>
>
> As far as I have understood the workings, Wicket maintains one PageMap per
> Browser Windows in the Session Store and a number of Page Versions per
> PageMap for every architectural change of said page. The current version
> of
> the page resides in memory while oder versions will be serialized to disk
> into a temp file.
>
> If that's correct, I'm wondering how many versions of the page will Wicket
> maintain? Is there a fixed amount? Will there be an unlimited amount of
> versions until the server runs out of temp space? Could someone lighten me
> up? :)
>
> --
> View this message in context:
> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
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Re: How many page versions will exist?
Posted by oliverw <ol...@weichhold.com>.
Thanks Markus. Unfortunately this won't compile with 1.3. I've checked the
IPageSettings interface and there's no such methods. Its method
getVersionPagesByDefault() which returns a boolean is as close as it gets.
Other suggestions? :)
Markus Strickler wrote:
>
> Hi-
>
> you might want to have a look at
> Application.getPageSettings().getMaxPageVersions() and the corresponding
> API
> docs.
> This is also the place to change the number of versions.
>
> -markus
>
> Zitat von oliverw <ol...@weichhold.com>:
>
>>
>> As far as I have understood the workings, Wicket maintains one PageMap
>> per
>> Browser Windows in the Session Store and a number of Page Versions per
>> PageMap for every architectural change of said page. The current version
>> of
>> the page resides in memory while oder versions will be serialized to disk
>> into a temp file.
>>
>> If that's correct, I'm wondering how many versions of the page will
>> Wicket
>> maintain? Is there a fixed amount? Will there be an unlimited amount of
>> versions until the server runs out of temp space? Could someone lighten
>> me
>> up? :)
>>
>> --
>> View this message in context:
>> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
>> Sent from the Wicket - User mailing list archive at Nabble.com.
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
>
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>
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Re: How many page versions will exist?
Posted by Markus Strickler <ma...@braindump.ms>.
Hi-
you might want to have a look at
Application.getPageSettings().getMaxPageVersions() and the corresponding API
docs.
This is also the place to change the number of versions.
-markus
Zitat von oliverw <ol...@weichhold.com>:
>
> As far as I have understood the workings, Wicket maintains one PageMap per
> Browser Windows in the Session Store and a number of Page Versions per
> PageMap for every architectural change of said page. The current version of
> the page resides in memory while oder versions will be serialized to disk
> into a temp file.
>
> If that's correct, I'm wondering how many versions of the page will Wicket
> maintain? Is there a fixed amount? Will there be an unlimited amount of
> versions until the server runs out of temp space? Could someone lighten me
> up? :)
>
> --
> View this message in context:
> http://www.nabble.com/How-many-page-versions-will-exist--tp15285630p15285630.html
> Sent from the Wicket - User mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
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