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Posted to dev@struts.apache.org by "Hortigüela Saguar, Juan Antonio" <jh...@mapfre.com> on 2006/01/05 09:01:35 UTC
Struts 1.1 and DynaActionFormProblem
Hi,
I'm using struts 1.1 and i have found a problem using DynaActionForms and
the memory consumption it causes. Looking for a solution, I have seen a
similar case in the users lists, but it happened in 2003 and it doesn't seem
solved. I am talking about the following text:
>>-----Original Message-----
>>From: Ted Husted [mailto:husted@apache.org]
>>Sent: den 29 juli 2003 13:41
>>To: Struts Developers List
>>Cc: Maya.Retzlaff@mediacatalyst.com
>>Subject: Re: FW: Memory consumption 1.1 b3 vs. 1.1 final
>>
>>
>>Except for some of the Sun libraries, there is absolutely no closed
>>source in the Struts distribution. So, everything should be
>>traceable if
>>you have all the Common source packages on board. In this
>>case, you may
>>need the Commons BeanUtils source.
>>
>>The <action scope="session" ... /> property is meant to refer to the
>>ActionForm for that mapping and should not affect any object
>>represented
>>in the struts-config. To have the ActionForms default to
>>request scope,
>>you can specify another classname in the action-mappings element. The
>>RequestActionMapping class is provided for that purpose.
>>
>>AFAIK, the only objects Struts would ever store in the session are a
>>session-scoped ActionForm, a Locale object, and a session-scoped
>>exception error. The other objects specified by the
>>struts-config should
>>be stored in application scope and shared by all clients.
>>
>>I believe what you are looking at is a pointer from the
>>DynaActionForm
>>to the shared configuration in application scope. If we are somehow
>>copying the Struts Configuration into the session scope, then, yes, I
>>believe that would be a bug ... or at least a feature that
>>needs to be
>>reconsidered =:0)
>>
>>-Ted.
>>
>>Maya Retzlaff wrote:
>>
>>>Dear Developers,
>>>
>>>I've been lurking on the developers list for a while and
>>
>>submitted the
>>
>>>questions/problems below to the struts-user list.
>>
>>Unfortunately I haven't
>>
>>>gotten a reply, and I was recommended to try the developers
>>
>>list. I hope,
>>
>>>that posting this list to the developer list, is not to big
>>
>>a breech of
>>
>>>protocol.
>>>
>>>Best regards
>>>
>>>/Maya Retzlaff
>>>
>>>ps. Due to time differences I might be a bit slow in replying ds.
>>>
>>>
>>>
>>>>-----Original Message-----
>>>>From: Maya Retzlaff [mailto:Maya.Retzlaff@mediacatalyst.com]
>>>>Sent: den 28 juli 2003 21:19
>>>>To: 'Struts Users Mailing List'
>>>>Subject: RE: Memory consumption 1.1 b3 vs. 1.1 final
>>>>
>>>>
>>>>Hi,
>>>>
>>>>Unfortunate no one replied. But I'll try again with more
>>
>>information.
>>
>>>>After a bit more debugging, when using the debugger see
>>
>>screen shot.
>>
>>>>http://maya.retzlaff.se/debugScreenShot.png, sorry couldn't
>>>>export to text.
>>>>Its a bit censored.
>>>>
>>>>This means that the whole struts-config.xml (a HashMap with
>>>>127 elements) is
>>>>saved in the session for every user when <action
>>>>scope="session"> is set in
>>>>struts-config.xml. For us with the memory restrictions we
>>>>face, the 50k that
>>>>the strutsconfig takes in memory is very severe.
>>>>If this is a conscious design description, it would be very
>>>>good to hear the
>>>>reasons.
>>>>If not could we in anyway work with someone to help debug it
>>>>so we could
>>>>submit a patch?
>>>>
>>>>Now when comparing the source files for the different
>>>>releases we can't find
>>>>anything significantly different in any of these classes. And
>>>>finding where
>>>>moduleconfig gets set into the FormBeanConfig is untraceable.
>>>>Is it done in
>>>>apache.commons?
>>>>
>>>>A search in bugzilla either hasn't yielded anything either,
>>>>regrettably
>>>>
>>>>We are on a schedule and need to have this solved on Weds,
>>>>otherwise we need
>>>>to go back to the 1.1 b3 release. Obviously we would prefer
>>
>>to use the
>>
>>>>stable 1.1 release.
>>>>
>>>>Help would be very much appreciated.
>>>>
>>>>
>>>>/Maya
I would like to know if someone had the same problem and how it cna be
solved; with the following versions, with a patch, etc...
Thank you in advance
Juan Antonio
Re: Struts 1.1 and DynaActionFormProblem
Posted by Niall Pemberton <ni...@blueyonder.co.uk>.
This was fixed in April 2004 in Struts 1.2.x in the following revision
http://svn.apache.org/viewcvs.cgi?rev=51535&view=rev
To resolve this you either need to patch Struts 1.1 yourself or upgrade to
Struts 1.2.
Niall
----- Original Message -----
From: "Hortigüela Saguar, Juan Antonio" <jh...@mapfre.com>
To: <de...@struts.apache.org>
Sent: Thursday, January 05, 2006 8:01 AM
Subject: Struts 1.1 and DynaActionFormProblem
> Hi,
>
>
>
> I'm using struts 1.1 and i have found a problem using DynaActionForms and
> the memory consumption it causes. Looking for a solution, I have seen a
> similar case in the users lists, but it happened in 2003 and it doesn't
seem
> solved. I am talking about the following text:
>
>
>
> >>-----Original Message-----
> >>From: Ted Husted [mailto:husted@apache.org]
> >>Sent: den 29 juli 2003 13:41
> >>To: Struts Developers List
> >>Cc: Maya.Retzlaff@mediacatalyst.com
> >>Subject: Re: FW: Memory consumption 1.1 b3 vs. 1.1 final
> >>
> >>
> >>Except for some of the Sun libraries, there is absolutely no closed
> >>source in the Struts distribution. So, everything should be
> >>traceable if
> >>you have all the Common source packages on board. In this
> >>case, you may
> >>need the Commons BeanUtils source.
> >>
> >>The <action scope="session" ... /> property is meant to refer to the
> >>ActionForm for that mapping and should not affect any object
> >>represented
> >>in the struts-config. To have the ActionForms default to
> >>request scope,
> >>you can specify another classname in the action-mappings element. The
> >>RequestActionMapping class is provided for that purpose.
> >>
> >>AFAIK, the only objects Struts would ever store in the session are a
> >>session-scoped ActionForm, a Locale object, and a session-scoped
> >>exception error. The other objects specified by the
> >>struts-config should
> >>be stored in application scope and shared by all clients.
> >>
> >>I believe what you are looking at is a pointer from the
> >>DynaActionForm
> >>to the shared configuration in application scope. If we are somehow
> >>copying the Struts Configuration into the session scope, then, yes, I
> >>believe that would be a bug ... or at least a feature that
> >>needs to be
> >>reconsidered =:0)
> >>
> >>-Ted.
> >>
> >>Maya Retzlaff wrote:
> >>
> >>>Dear Developers,
> >>>
> >>>I've been lurking on the developers list for a while and
> >>
> >>submitted the
> >>
> >>>questions/problems below to the struts-user list.
> >>
> >>Unfortunately I haven't
> >>
> >>>gotten a reply, and I was recommended to try the developers
> >>
> >>list. I hope,
> >>
> >>>that posting this list to the developer list, is not to big
> >>
> >>a breech of
> >>
> >>>protocol.
> >>>
> >>>Best regards
> >>>
> >>>/Maya Retzlaff
> >>>
> >>>ps. Due to time differences I might be a bit slow in replying ds.
> >>>
> >>>
> >>>
> >>>>-----Original Message-----
> >>>>From: Maya Retzlaff [mailto:Maya.Retzlaff@mediacatalyst.com]
> >>>>Sent: den 28 juli 2003 21:19
> >>>>To: 'Struts Users Mailing List'
> >>>>Subject: RE: Memory consumption 1.1 b3 vs. 1.1 final
> >>>>
> >>>>
> >>>>Hi,
> >>>>
> >>>>Unfortunate no one replied. But I'll try again with more
> >>
> >>information.
> >>
> >>>>After a bit more debugging, when using the debugger see
> >>
> >>screen shot.
> >>
> >>>>http://maya.retzlaff.se/debugScreenShot.png, sorry couldn't
> >>>>export to text.
> >>>>Its a bit censored.
> >>>>
> >>>>This means that the whole struts-config.xml (a HashMap with
> >>>>127 elements) is
> >>>>saved in the session for every user when <action
> >>>>scope="session"> is set in
> >>>>struts-config.xml. For us with the memory restrictions we
> >>>>face, the 50k that
> >>>>the strutsconfig takes in memory is very severe.
> >>>>If this is a conscious design description, it would be very
> >>>>good to hear the
> >>>>reasons.
> >>>>If not could we in anyway work with someone to help debug it
> >>>>so we could
> >>>>submit a patch?
> >>>>
> >>>>Now when comparing the source files for the different
> >>>>releases we can't find
> >>>>anything significantly different in any of these classes. And
> >>>>finding where
> >>>>moduleconfig gets set into the FormBeanConfig is untraceable.
> >>>>Is it done in
> >>>>apache.commons?
> >>>>
> >>>>A search in bugzilla either hasn't yielded anything either,
> >>>>regrettably
> >>>>
> >>>>We are on a schedule and need to have this solved on Weds,
> >>>>otherwise we need
> >>>>to go back to the 1.1 b3 release. Obviously we would prefer
> >>
> >>to use the
> >>
> >>>>stable 1.1 release.
> >>>>
> >>>>Help would be very much appreciated.
> >>>>
> >>>>
> >>>>/Maya
>
>
>
> I would like to know if someone had the same problem and how it cna be
> solved; with the following versions, with a patch, etc...
>
>
>
> Thank you in advance
>
>
>
>
>
> Juan Antonio
>
>
>
>
>
>
>
>
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