Session Object Storage Capacity.

[Balwinder <ba...@saigun.com>]

Hi Everyone!!!

While working with struts application, i cmae across a very weird but 
important question.
I just wanted to know how much data we can store in our Page, 
PageContext, Request, Session, and Application objects?

Thanks.

Thanks and regards,
Balwinder Kumar

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org

Re: Session Object Storage Capacity.

[Leon Rosenberg <ro...@googlemail.com>]

On 1/8/07, Antonio Petrelli <ap...@apache.org> wrote:
> Leon Rosenberg ha scritto:
> > it solely depends on how much heap you give your webcontainer divided
> > by the number of users you have/expect minus the memory the remaining
> > application requires.
>
> size = (HEAP - APP_MEMORY)/users. Is it really so simple? :-)

No. its more along:
mem = HEAP+PERM_SPACE;

NEEDED_HEEP = NUMBER_OF_CONCURRENT_REQUEST*REQ_SCOPE_SIZE+
NUMBER_OF_CONCURRENT_PAGES*PAGE_SCOPE_SIZE+
NUMBER_OF_CONCURRENT_REQUEST*PER_REQUEST_APP_MEM+
NUMBER_OF_CONCURRENT_USERS*SESSION_SCOPE_SIZE+
APP_SCOPE_SIZE + CACHE_SIZE+APP_MEMORY;

NEEDED_PERM = CLASSCOUNT * CLASSSIZE;

and so on.

but I think the first estimation was the more useful :-)

> Anyway beware of the size of session-scoped objects, in a clustered
> environment they need to be shared, serialized and deserialized and they
> could need a large bandwidth.

If you/OP are/is in clustered environment. But its good to declare
only those things serializable you really intend to serialize either
way.

>
> Antonio
>
>

Leon

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org

Re: Session Object Storage Capacity.

[Antonio Petrelli <ap...@apache.org>]

Leon Rosenberg ha scritto:
> it solely depends on how much heap you give your webcontainer divided
> by the number of users you have/expect minus the memory the remaining
> application requires.

size = (HEAP - APP_MEMORY)/users. Is it really so simple? :-)
Anyway beware of the size of session-scoped objects, in a clustered 
environment they need to be shared, serialized and deserialized and they 
could need a large bandwidth.

Antonio


---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org

Re: Session Object Storage Capacity.

[Leon Rosenberg <ro...@googlemail.com>]

it solely depends on how much heap you give your webcontainer divided
by the number of users you have/expect minus the memory the remaining
application requires.

regards
Leon

On 1/8/07, Balwinder <ba...@saigun.com> wrote:
> Hi Everyone!!!
>
> While working with struts application, i cmae across a very weird but
> important question.
> I just wanted to know how much data we can store in our Page,
> PageContext, Request, Session, and Application objects?
>
> Thanks.
>
> Thanks and regards,
> Balwinder Kumar
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org