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Posted to users@wicket.apache.org by "Basak, Prasan (TCS)" <Pr...@landg.com> on 2009/04/23 13:37:27 UTC
Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows 2003
Server SP1
Hi,
Our web application use following configuration for development, and it
frequently gives Java core dump without enough load.
We contacted IBM support, who, after analysing dump file, has found that
some of the html files of our app have been stored in the native memory
space ( not heap memory) , presumably by wicket.
Did any other user of wicket 1.2.x experience similar issues?
Env:
JDK = IBM JDK 1.4
OS = Windows 2003 Server SP1
Application Server = Websphere Process Server 6.0.2x
Web application = Is a pure java app
Wicket Version = 1.2.6
Thanks
prasun
**********************************************************************
This email (and any attachments) may contain privileged and/or confidential information. If you are not the intended recipient please do not disclose, copy, distribute, disseminate or take any action in reliance on it. If you have received this message in error please reply and tell us and then delete it. Should you wish to communicate with us by email we cannot guarantee the security of any data outside our own computer systems. For the protection of Legal & General's systems and staff, incoming emails will be automatically scanned. Any information contained in this message may be subject to applicable terms and conditions and must not be construed as giving investment advice within or outside the United Kingdom.
Legal & General Group plc is registered in England under company number 1417162 and is a holding company.
The registered office for all companies in the Legal & General group is One Coleman Street London EC2R 5AA.
The following subsidiary companies of Legal & General Group Plc are authorised and regulated by the Financial Services Authority: Legal & General Partnership Services Limited, Legal & General Insurance Limited, Legal & General Assurance Society Limited, Legal & General (Unit Trust Managers) Limited and Legal & General (Portfolio Management Services) Limited.
Legal & General International (Ireland) is incorporated in Ireland under company number 440141 with its registered office at Beaux Lane House, Lower Mercer Street, Dublin 2, Ireland and is authorised by the Financial Regulator in Ireland and by the Financial Services Authority for the conduct of insurance business in the UK.
Full details can be found at http://www.legalandgeneralgroup.com
**********************************************************************
Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by Jeremy Thomerson <je...@wickettraining.com>.
I can't really remember - I just had to say that I think you win the
award for longest signature yet to this list.
--
Jeremy Thomerson
http://www.wickettraining.com
On Thu, Apr 23, 2009 at 6:37 AM, Basak, Prasan (TCS)
<Pr...@landg.com> wrote:
> Hi,
>
> Our web application use following configuration for development, and it
> frequently gives Java core dump without enough load.
> We contacted IBM support, who, after analysing dump file, has found that
> some of the html files of our app have been stored in the native memory
> space ( not heap memory) , presumably by wicket.
>
> Did any other user of wicket 1.2.x experience similar issues?
>
> Env:
> JDK = IBM JDK 1.4
> OS = Windows 2003 Server SP1
> Application Server = Websphere Process Server 6.0.2x
> Web application = Is a pure java app
> Wicket Version = 1.2.6
>
> Thanks
> prasun
>
>
> **********************************************************************
> This email (and any attachments) may contain privileged and/or confidential information. If you are not the intended recipient please do not disclose, copy, distribute, disseminate or take any action in reliance on it. If you have received this message in error please reply and tell us and then delete it. Should you wish to communicate with us by email we cannot guarantee the security of any data outside our own computer systems. For the protection of Legal & General's systems and staff, incoming emails will be automatically scanned. Any information contained in this message may be subject to applicable terms and conditions and must not be construed as giving investment advice within or outside the United Kingdom.
>
> Legal & General Group plc is registered in England under company number 1417162 and is a holding company.
>
> The registered office for all companies in the Legal & General group is One Coleman Street London EC2R 5AA.
>
> The following subsidiary companies of Legal & General Group Plc are authorised and regulated by the Financial Services Authority: Legal & General Partnership Services Limited, Legal & General Insurance Limited, Legal & General Assurance Society Limited, Legal & General (Unit Trust Managers) Limited and Legal & General (Portfolio Management Services) Limited.
>
> Legal & General International (Ireland) is incorporated in Ireland under company number 440141 with its registered office at Beaux Lane House, Lower Mercer Street, Dublin 2, Ireland and is authorised by the Financial Regulator in Ireland and by the Financial Services Authority for the conduct of insurance business in the UK.
>
> Full details can be found at http://www.legalandgeneralgroup.com
>
> **********************************************************************
>
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Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by prasun <pr...@landg.com>.
It is 'deployment' mode, good advise though.
By any chance, any recommendation on JVM -ms / -mx parameters for wicket
application?
What we have found that
we needed to set the
1/ low -ms value.
2/ comparatively high -mx value , but had to make sure that it does not
exceed half of the available memory of the box
Carlo Camerino wrote:
>
> did yous witch your aplication to deployment mode.
> Using development mode in websphere using wicket will cause it to have
> memory leaks.
> Even in 1.3.5 we experience it.
> Try switching to deployment mode and see if helps
>
> On Thu, Apr 23, 2009 at 10:20 PM, Martijn Dashorst <
> martijn.dashorst@gmail.com> wrote:
>
>> Wicket doesn't do anything with native stuff—we're doing pure Java.
>> Either you did something strange, or there's a bug in WebSphere or the
>> IBM JDK you're running into.
>>
>> Martijn
>>
>> On Thu, Apr 23, 2009 at 1:37 PM, Basak, Prasan (TCS)
>> <Pr...@landg.com> wrote:
>> > Hi,
>> >
>> > Our web application use following configuration for development, and it
>> > frequently gives Java core dump without enough load.
>> > We contacted IBM support, who, after analysing dump file, has found
>> that
>> > some of the html files of our app have been stored in the native memory
>> > space ( not heap memory) , presumably by wicket.
>> >
>> > Did any other user of wicket 1.2.x experience similar issues?
>> >
>> > Env:
>> > JDK = IBM JDK 1.4
>> > OS = Windows 2003 Server SP1
>> > Application Server = Websphere Process Server 6.0.2x
>> > Web application = Is a pure java app
>> > Wicket Version = 1.2.6
>> >
>> > Thanks
>> > prasun
>> >
>> >
>> > **********************************************************************
>> > This email (and any attachments) may contain privileged and/or
>> confidential information. If you are not the intended recipient please do
>> not disclose, copy, distribute, disseminate or take any action in
>> reliance
>> on it. If you have received this message in error please reply and tell
>> us
>> and then delete it. Should you wish to communicate with us by email we
>> cannot guarantee the security of any data outside our own computer
>> systems.
>> For the protection of Legal & General's systems and staff, incoming
>> emails
>> will be automatically scanned. Any information contained in this message
>> may
>> be subject to applicable terms and conditions and must not be construed
>> as
>> giving investment advice within or outside the United Kingdom.
>> >
>> > Legal & General Group plc is registered in England under company number
>> 1417162 and is a holding company.
>> >
>> > The registered office for all companies in the Legal & General group is
>> One Coleman Street London EC2R 5AA.
>> >
>> > The following subsidiary companies of Legal & General Group Plc are
>> authorised and regulated by the Financial Services Authority: Legal &
>> General Partnership Services Limited, Legal & General Insurance Limited,
>> Legal & General Assurance Society Limited, Legal & General (Unit Trust
>> Managers) Limited and Legal & General (Portfolio Management Services)
>> Limited.
>> >
>> > Legal & General International (Ireland) is incorporated in Ireland
>> under
>> company number 440141 with its registered office at Beaux Lane House,
>> Lower
>> Mercer Street, Dublin 2, Ireland and is authorised by the Financial
>> Regulator in Ireland and by the Financial Services Authority for the
>> conduct
>> of insurance business in the UK.
>> >
>> > Full details can be found at http://www.legalandgeneralgroup.com
>> >
>> > **********************************************************************
>> >
>>
>>
>>
>> --
>> Become a Wicket expert, learn from the best: http://wicketinaction.com
>> Apache Wicket 1.3.5 is released
>> Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
--
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Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by Carlo Camerino <cm...@gmail.com>.
did yous witch your aplication to deployment mode.
Using development mode in websphere using wicket will cause it to have
memory leaks.
Even in 1.3.5 we experience it.
Try switching to deployment mode and see if helps
On Thu, Apr 23, 2009 at 10:20 PM, Martijn Dashorst <
martijn.dashorst@gmail.com> wrote:
> Wicket doesn't do anything with native stuff—we're doing pure Java.
> Either you did something strange, or there's a bug in WebSphere or the
> IBM JDK you're running into.
>
> Martijn
>
> On Thu, Apr 23, 2009 at 1:37 PM, Basak, Prasan (TCS)
> <Pr...@landg.com> wrote:
> > Hi,
> >
> > Our web application use following configuration for development, and it
> > frequently gives Java core dump without enough load.
> > We contacted IBM support, who, after analysing dump file, has found that
> > some of the html files of our app have been stored in the native memory
> > space ( not heap memory) , presumably by wicket.
> >
> > Did any other user of wicket 1.2.x experience similar issues?
> >
> > Env:
> > JDK = IBM JDK 1.4
> > OS = Windows 2003 Server SP1
> > Application Server = Websphere Process Server 6.0.2x
> > Web application = Is a pure java app
> > Wicket Version = 1.2.6
> >
> > Thanks
> > prasun
> >
> >
> > **********************************************************************
> > This email (and any attachments) may contain privileged and/or
> confidential information. If you are not the intended recipient please do
> not disclose, copy, distribute, disseminate or take any action in reliance
> on it. If you have received this message in error please reply and tell us
> and then delete it. Should you wish to communicate with us by email we
> cannot guarantee the security of any data outside our own computer systems.
> For the protection of Legal & General's systems and staff, incoming emails
> will be automatically scanned. Any information contained in this message may
> be subject to applicable terms and conditions and must not be construed as
> giving investment advice within or outside the United Kingdom.
> >
> > Legal & General Group plc is registered in England under company number
> 1417162 and is a holding company.
> >
> > The registered office for all companies in the Legal & General group is
> One Coleman Street London EC2R 5AA.
> >
> > The following subsidiary companies of Legal & General Group Plc are
> authorised and regulated by the Financial Services Authority: Legal &
> General Partnership Services Limited, Legal & General Insurance Limited,
> Legal & General Assurance Society Limited, Legal & General (Unit Trust
> Managers) Limited and Legal & General (Portfolio Management Services)
> Limited.
> >
> > Legal & General International (Ireland) is incorporated in Ireland under
> company number 440141 with its registered office at Beaux Lane House, Lower
> Mercer Street, Dublin 2, Ireland and is authorised by the Financial
> Regulator in Ireland and by the Financial Services Authority for the conduct
> of insurance business in the UK.
> >
> > Full details can be found at http://www.legalandgeneralgroup.com
> >
> > **********************************************************************
> >
>
>
>
> --
> Become a Wicket expert, learn from the best: http://wicketinaction.com
> Apache Wicket 1.3.5 is released
> Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by Carlo Camerino <cm...@gmail.com>.
yes you need to set the max heap and min heap. It depends on a 32-bit 4 gig
machine usually it's nice to set it to
256 and 1524 to be safe.
There have been problems when you set it too high on our previous
implementations.
i'm not really sure as it's hard to size an application properly.
One thing I'm sure of though is to make sure you install websphere fix packs
or you'll have classloader problems.
Also upgrade jdk version..
Yes 1.3 stores it into disk. It stores that most recently visited page into
the session which makes memory consumption a lot less
On Mon, Apr 27, 2009 at 7:03 PM, prasun <pr...@landg.com> wrote:
>
> thanks for replying.
> I was not looking for only native code usage, which I am sure wicket does
> not use.
>
> I have found out that in 1.3.x wicket uses 'DiskPageStore' to store some
> data to disk, whereas in 1.2.x all the data are in memory, is it correct?
>
> Would help if someone explains if wicket 1.2.x does any file I/O for
> storing
> PageMap data?
>
> thanks
> prasun
>
>
> Martijn Dashorst wrote:
> >
> > Wicket doesn't do anything with native stuff—we're doing pure Java.
> > Either you did something strange, or there's a bug in WebSphere or the
> > IBM JDK you're running into.
> >
> > Martijn
> >
> > On Thu, Apr 23, 2009 at 1:37 PM, Basak, Prasan (TCS)
> > <Pr...@landg.com> wrote:
> >> Hi,
> >>
> >> Our web application use following configuration for development, and it
> >> frequently gives Java core dump without enough load.
> >> We contacted IBM support, who, after analysing dump file, has found that
> >> some of the html files of our app have been stored in the native memory
> >> space ( not heap memory) , presumably by wicket.
> >>
> >> Did any other user of wicket 1.2.x experience similar issues?
> >>
> >> Env:
> >> JDK = IBM JDK 1.4
> >> OS = Windows 2003 Server SP1
> >> Application Server = Websphere Process Server 6.0.2x
> >> Web application = Is a pure java app
> >> Wicket Version = 1.2.6
> >>
> >> Thanks
> >> prasun
> >>
> >>
> >> **********************************************************************
> >> This email (and any attachments) may contain privileged and/or
> >> confidential information. If you are not the intended recipient please
> do
> >> not disclose, copy, distribute, disseminate or take any action in
> >> reliance on it. If you have received this message in error please reply
> >> and tell us and then delete it. Should you wish to communicate with us
> by
> >> email we cannot guarantee the security of any data outside our own
> >> computer systems. For the protection of Legal & General's systems and
> >> staff, incoming emails will be automatically scanned. Any information
> >> contained in this message may be subject to applicable terms and
> >> conditions and must not be construed as giving investment advice within
> >> or outside the United Kingdom.
> >>
> >> Legal & General Group plc is registered in England under company number
> >> 1417162 and is a holding company.
> >>
> >> The registered office for all companies in the Legal & General group is
> >> One Coleman Street London EC2R 5AA.
> >>
> >> The following subsidiary companies of Legal & General Group Plc are
> >> authorised and regulated by the Financial Services Authority: Legal &
> >> General Partnership Services Limited, Legal & General Insurance Limited,
> >> Legal & General Assurance Society Limited, Legal & General (Unit Trust
> >> Managers) Limited and Legal & General (Portfolio Management Services)
> >> Limited.
> >>
> >> Legal & General International (Ireland) is incorporated in Ireland under
> >> company number 440141 with its registered office at Beaux Lane House,
> >> Lower Mercer Street, Dublin 2, Ireland and is authorised by the
> Financial
> >> Regulator in Ireland and by the Financial Services Authority for the
> >> conduct of insurance business in the UK.
> >>
> >> Full details can be found at http://www.legalandgeneralgroup.com
> >>
> >> **********************************************************************
> >>
> >
> >
> >
> > --
> > Become a Wicket expert, learn from the best: http://wicketinaction.com
> > Apache Wicket 1.3.5 is released
> > Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
> >
> > ---------------------------------------------------------------------
> > 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/Native-memory-leak-using-wicket-1.2.6---IBM-JDK-1.4---Windows-2003-Server-SP1-tp23195156p23253981.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
>
>
Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by prasun <pr...@landg.com>.
thanks for replying.
I was not looking for only native code usage, which I am sure wicket does
not use.
I have found out that in 1.3.x wicket uses 'DiskPageStore' to store some
data to disk, whereas in 1.2.x all the data are in memory, is it correct?
Would help if someone explains if wicket 1.2.x does any file I/O for storing
PageMap data?
thanks
prasun
Martijn Dashorst wrote:
>
> Wicket doesn't do anything with native stuff—we're doing pure Java.
> Either you did something strange, or there's a bug in WebSphere or the
> IBM JDK you're running into.
>
> Martijn
>
> On Thu, Apr 23, 2009 at 1:37 PM, Basak, Prasan (TCS)
> <Pr...@landg.com> wrote:
>> Hi,
>>
>> Our web application use following configuration for development, and it
>> frequently gives Java core dump without enough load.
>> We contacted IBM support, who, after analysing dump file, has found that
>> some of the html files of our app have been stored in the native memory
>> space ( not heap memory) , presumably by wicket.
>>
>> Did any other user of wicket 1.2.x experience similar issues?
>>
>> Env:
>> JDK = IBM JDK 1.4
>> OS = Windows 2003 Server SP1
>> Application Server = Websphere Process Server 6.0.2x
>> Web application = Is a pure java app
>> Wicket Version = 1.2.6
>>
>> Thanks
>> prasun
>>
>>
>> **********************************************************************
>> This email (and any attachments) may contain privileged and/or
>> confidential information. If you are not the intended recipient please do
>> not disclose, copy, distribute, disseminate or take any action in
>> reliance on it. If you have received this message in error please reply
>> and tell us and then delete it. Should you wish to communicate with us by
>> email we cannot guarantee the security of any data outside our own
>> computer systems. For the protection of Legal & General's systems and
>> staff, incoming emails will be automatically scanned. Any information
>> contained in this message may be subject to applicable terms and
>> conditions and must not be construed as giving investment advice within
>> or outside the United Kingdom.
>>
>> Legal & General Group plc is registered in England under company number
>> 1417162 and is a holding company.
>>
>> The registered office for all companies in the Legal & General group is
>> One Coleman Street London EC2R 5AA.
>>
>> The following subsidiary companies of Legal & General Group Plc are
>> authorised and regulated by the Financial Services Authority: Legal &
>> General Partnership Services Limited, Legal & General Insurance Limited,
>> Legal & General Assurance Society Limited, Legal & General (Unit Trust
>> Managers) Limited and Legal & General (Portfolio Management Services)
>> Limited.
>>
>> Legal & General International (Ireland) is incorporated in Ireland under
>> company number 440141 with its registered office at Beaux Lane House,
>> Lower Mercer Street, Dublin 2, Ireland and is authorised by the Financial
>> Regulator in Ireland and by the Financial Services Authority for the
>> conduct of insurance business in the UK.
>>
>> Full details can be found at http://www.legalandgeneralgroup.com
>>
>> **********************************************************************
>>
>
>
>
> --
> Become a Wicket expert, learn from the best: http://wicketinaction.com
> Apache Wicket 1.3.5 is released
> Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
>
> ---------------------------------------------------------------------
> 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/Native-memory-leak-using-wicket-1.2.6---IBM-JDK-1.4---Windows-2003-Server-SP1-tp23195156p23253981.html
Sent from the Wicket - User mailing list archive at Nabble.com.
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Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows
2003 Server SP1
Posted by Martijn Dashorst <ma...@gmail.com>.
Wicket doesn't do anything with native stuff—we're doing pure Java.
Either you did something strange, or there's a bug in WebSphere or the
IBM JDK you're running into.
Martijn
On Thu, Apr 23, 2009 at 1:37 PM, Basak, Prasan (TCS)
<Pr...@landg.com> wrote:
> Hi,
>
> Our web application use following configuration for development, and it
> frequently gives Java core dump without enough load.
> We contacted IBM support, who, after analysing dump file, has found that
> some of the html files of our app have been stored in the native memory
> space ( not heap memory) , presumably by wicket.
>
> Did any other user of wicket 1.2.x experience similar issues?
>
> Env:
> JDK = IBM JDK 1.4
> OS = Windows 2003 Server SP1
> Application Server = Websphere Process Server 6.0.2x
> Web application = Is a pure java app
> Wicket Version = 1.2.6
>
> Thanks
> prasun
>
>
> **********************************************************************
> This email (and any attachments) may contain privileged and/or confidential information. If you are not the intended recipient please do not disclose, copy, distribute, disseminate or take any action in reliance on it. If you have received this message in error please reply and tell us and then delete it. Should you wish to communicate with us by email we cannot guarantee the security of any data outside our own computer systems. For the protection of Legal & General's systems and staff, incoming emails will be automatically scanned. Any information contained in this message may be subject to applicable terms and conditions and must not be construed as giving investment advice within or outside the United Kingdom.
>
> Legal & General Group plc is registered in England under company number 1417162 and is a holding company.
>
> The registered office for all companies in the Legal & General group is One Coleman Street London EC2R 5AA.
>
> The following subsidiary companies of Legal & General Group Plc are authorised and regulated by the Financial Services Authority: Legal & General Partnership Services Limited, Legal & General Insurance Limited, Legal & General Assurance Society Limited, Legal & General (Unit Trust Managers) Limited and Legal & General (Portfolio Management Services) Limited.
>
> Legal & General International (Ireland) is incorporated in Ireland under company number 440141 with its registered office at Beaux Lane House, Lower Mercer Street, Dublin 2, Ireland and is authorised by the Financial Regulator in Ireland and by the Financial Services Authority for the conduct of insurance business in the UK.
>
> Full details can be found at http://www.legalandgeneralgroup.com
>
> **********************************************************************
>
--
Become a Wicket expert, learn from the best: http://wicketinaction.com
Apache Wicket 1.3.5 is released
Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3.
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