Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows 2003 Server SP1

2009-04-27 Thread prasun

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.dasho...@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)
 prasan.ba...@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
 
 
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Re: Native memory leak using wicket-1.2.6 / IBM JDK 1.4 / Windows 2003 Server SP1

2009-04-27 Thread prasun

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)
 prasan.ba...@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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