[j2ee] High CPU usage

[Daniel Sheppard-4]

I have filed issue http://www.netbeans.org/issues/show_bug.cgi?id=123441 at priority 1 as I seem to see periodic high CPU giving an unresponsive IDE.

Daniel Sheppard

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[文生 郭]

Some parts of this message have been removed. Learn more about Nabble's security policy.

Hello,

I have to admit my deception after trying to model my components using the UML module of Netbeans.
I feeled like the authors didn't do any intense debugging and counted too much on the 60cat program to find the bugs for them.

... and I feel that not a lot of people in the 60cat program really tested the UML part.

1) After 10 min of creating "components" and name them on a component diagram, I save it. Then, I realize that the node of the diagram lost its name and can't be opened. No choice, I had to delete it.

2) Thankfully, the components that I created are still in the model section, and I just needed to create a new empty diagram and drag them there. But  I ran into other kind of problems:
- I can't drag and drop more than 1 component at the same time and had to do the gesture 12 times to put them all on my new diagram.
- Some of the dependencies that I made between the components doesn't show up on the diagram.
- The arcs that represent the dependencies are represented as set of segments and when I move the component within the diagram, the joins between the segments don't move at all, leaving me in front of a big graphical mess.
- There is no way to know the direction of the dependency from the project view when we see the dependencies of a component (they use the same icon for both directions).

Sorry guys, but I think I lost my illusion of "the only IDE I need" for tonight and I am gonna use my whiteboard and a pen.

Vincent Cantin

---

Besoin d'un e-mail ? Créez gratuitement un compte Windows Live Hotmail, la boîte e-mail entièrement personnalisable ! Windows Live Hotmail

[stroudcuster]

I've also seen the same thing on a Window 2000 system w/ McAffee virus scan, which I think may be the culprit.  It's particularly bad with large/complex JSPs.

 

Stroud Custer

 

-------------- Original message --------------
From: Daniel Sheppard <choc_dan@...>

> I'm seeing high CPU when I edit JSPs. The CPU stays high for some minutes. A
> thread dump shows that a jar or zip file is being scanned somewhere. I don't
> remember this from earlier release candidates.....
>
> Daniel Sheppard
>
> -----------------------------------------
> Email sent from www.virginmedia.com/email
> Virus-checked using McAfee(R) Software and scanned for spam

[Daniel Sheppard-4]

Ah, that sounds a reasonable suggestion.  I'll keep my eye open!

Daniel Sheppard

>
> From: stroudcuster@...
> Date: 2007/12/05 Wed PM 04:06:54 GMT
> To: netcat@...
> Subject: Re: [60cat][j2ee] High CPU usage
>
> I've also seen the same thing on a Window 2000 system w/ McAffee virus scan, which I think may be the culprit.  It's particularly bad with large/complex JSPs.
>
> Stroud Custer
>
> -------------- Original message --------------
> From: Daniel Sheppard <choc_dan@...>
>
> > I'm seeing high CPU when I edit JSPs. The CPU stays high for some minutes. A
> > thread dump shows that a jar or zip file is being scanned somewhere. I don't
> > remember this from earlier release candidates.....
> >
> > Daniel Sheppard
> >
> > -----------------------------------------
> > Email sent from www.virginmedia.com/email
> > Virus-checked using McAfee(R) Software and scanned for spam
>

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[wmac]

Hello

Look here http://wiki.netbeans.org/dashboard/

There are almost 500 open bugs remaining in UML category. In my opinion
generally Netbeans team has a low standard for covering bugs before
release.

JBoss in comparison covers almost every (even small bugs) before any
release.

You can look at their Jira http://jira.jboss.com/jira/browse/JBAS

Unfortunately when NB6 was released we had more than 5000 open bugs. I
criticized at that time that the quality criteria is too loose.

http://wiki.netbeans.org/wiki/view/NB6QualityCriteria

I wish Netbeans (and SUN) seriously take a look at quality criteria
standards. 5000 open bugs means that every netbeans user encounters a
few bugs every day. If I personally deliver software with this quality I
will loose every single customer.

Mac




文生 郭 wrote:

> Hello,
>
> I have to admit my deception after trying to model my components using
> the UML module of Netbeans.
> I feeled like the authors didn't do any intense debugging and counted
> too much on the 60cat program to find the bugs for them.
>
> ... and I feel that not a lot of people in the 60cat program really
> tested the UML part.
>
> 1) After 10 min of creating "components" and name them on a component
> diagram, I save it. Then, I realize that the node of the diagram lost
> its name and can't be opened. No choice, I had to delete it.
>
> 2) Thankfully, the components that I created are still in the model
> section, and I just needed to create a new empty diagram and drag them
> there. But  I ran into other kind of problems:
> - I can't drag and drop more than 1 component at the same time and had
> to do the gesture 12 times to put them all on my new diagram.
> - Some of the dependencies that I made between the components doesn't
> show up on the diagram.
> - The arcs that represent the dependencies are represented as set of
> segments and when I move the component within the diagram, the joins
> between the segments don't move at all, leaving me in front of a big
> graphical mess.
> - There is no way to know the direction of the dependency from the
> project view when we see the dependencies of a component (they use the
> same icon for both directions).
>
> Sorry guys, but I think I lost my illusion of "the only IDE I need" for
> tonight and I am gonna use my whiteboard and a pen.
>
> Vincent Cantin
>
>
> ------------------------------------------------------------------------
> Besoin d'un e-mail ? Créez gratuitement un compte Windows Live Hotmail,
> la boîte e-mail entièrement personnalisable ! Windows Live Hotmail
> <http://www.windowslive.fr/hotmail/default.asp>

[Gunnar Grim-4]

IMO, 630 major bugs in the JBAS project alone is not a small number, and that
does not even include the 230 major bugs in EJBTHREE. I sincerely hope that
the NetBeans team (and Sun) do not adopt the quality criteria standards of
JBoss!

Also, I hope this does not turn into a flame war, but I just had to react to
this comparision.

This said, I do agree that the UML module is not quite ready yet and maybe
should still be a beta plugin.

Best regards,
Gunnar

On Thursday 06 December 2007 12:06:17 Siamak Sarmady wrote:

> Hello
>
> Look here http://wiki.netbeans.org/dashboard/
>
> There are almost 500 open bugs remaining in UML category. In my opinion
> generally Netbeans team has a low standard for covering bugs before
> release.
>
> JBoss in comparison covers almost every (even small bugs) before any
> release.
>
> You can look at their Jira http://jira.jboss.com/jira/browse/JBAS
>
> Unfortunately when NB6 was released we had more than 5000 open bugs. I
> criticized at that time that the quality criteria is too loose.
>
> http://wiki.netbeans.org/wiki/view/NB6QualityCriteria
>
> I wish Netbeans (and SUN) seriously take a look at quality criteria
> standards. 5000 open bugs means that every netbeans user encounters a
> few bugs every day. If I personally deliver software with this quality I
> will loose every single customer.
>
> Mac
>

[msteffens]

I've seen the same problem on two machines with McAffee installed. The netbeans java.exe and McAffee process both use up a lot of CPU.

stroudcuster wrote:

I've also seen the same thing on a Window 2000 system w/ McAffee virus scan, which I think may be the culprit.  It's particularly bad with large/complex JSPs.

Stroud Custer

-------------- Original message --------------
From: Daniel Sheppard <[e-mail]>

> I'm seeing high CPU when I edit JSPs. The CPU stays high for some minutes. A
> thread dump shows that a jar or zip file is being scanned somewhere. I don't
> remember this from earlier release candidates.....
>
> Daniel Sheppard
>
> -----------------------------------------
> Email sent from www.virginmedia.com/email
> Virus-checked using McAfee(R) Software and scanned for spam

[Daniel Sheppard-4]

Indeed, if I exclude the .netbeans user directory from scanning then everything seems okay.  I set this issue to WORKSFORME, but it was subsequently assessed as P4 and re-opened.

Daniel Sheppard

>
> From: msteffens <msteffens@...>
> Date: 2007/12/06 Thu PM 11:27:36 GMT
> To: netcat@...
> Subject: Re: [60cat] [j2ee] High CPU usage
>
>
> I've seen the same problem on two machines with McAffee installed. The
> netbeans java.exe and McAffee process both use up a lot of CPU.
>
>
> stroudcuster wrote:
> >
> > I've also seen the same thing on a Window 2000 system w/ McAffee virus
> > scan, which I think may be the culprit.  It's particularly bad with
> > large/complex JSPs.
> >
> > Stroud Custer
> >
> > -------------- Original message --------------
> > From: Daniel Sheppard <choc_dan@...>
> >
> >> I'm seeing high CPU when I edit JSPs. The CPU stays high for some
> >> minutes. A
> >> thread dump shows that a jar or zip file is being scanned somewhere. I
> >> don't
> >> remember this from earlier release candidates.....
> >>
> >> Daniel Sheppard
> >>
> >> -----------------------------------------
> >> Email sent from www.virginmedia.com/email
> >> Virus-checked using McAfee(R) Software and scanned for spam
> >
>
> --
> View this message in context: http://www.nabble.com/-j2ee--High-CPU-usage-tf4949285.html#a14203515
> Sent from the NetBeans - NetCAT mailing list archive at Nabble.com.
>

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[Petr Nejedly]

Daniel Sheppard napsal(a):
> Indeed, if I exclude the .netbeans user directory from scanning then everything seems okay.  I set this issue to WORKSFORME, but it was subsequently assessed as P4 and re-opened.

So this should be at least RELNOTEd and mentioned in wiki/faq?

> Daniel Sheppard
>> From: msteffens <msteffens@...>
>> Date: 2007/12/06 Thu PM 11:27:36 GMT
>> To: netcat@...
>> Subject: Re: [60cat] [j2ee] High CPU usage
>>
>>
>> I've seen the same problem on two machines with McAffee installed. The
>> netbeans java.exe and McAffee process both use up a lot of CPU.
>>
>>
>> stroudcuster wrote:
>>> I've also seen the same thing on a Window 2000 system w/ McAffee virus
>>> scan, which I think may be the culprit.  It's particularly bad with
>>> large/complex JSPs.
>>>
>>> Stroud Custer
>>>
>>> -------------- Original message --------------
>>> From: Daniel Sheppard <choc_dan@...>
>>>
>>>> I'm seeing high CPU when I edit JSPs. The CPU stays high for some
>>>> minutes. A
>>>> thread dump shows that a jar or zip file is being scanned somewhere. I
>>>> don't
>>>> remember this from earlier release candidates.....
>>>>
>>>> Daniel Sheppard
>>>>
>>>> -----------------------------------------
>>>> Email sent from www.virginmedia.com/email
>>>> Virus-checked using McAfee(R) Software and scanned for spam
>> --
>> View this message in context: http://www.nabble.com/-j2ee--High-CPU-usage-tf4949285.html#a14203515
>> Sent from the NetBeans - NetCAT mailing list archive at Nabble.com.
>>
>
> -----------------------------------------
> Email sent from www.virginmedia.com/email
> Virus-checked using McAfee(R) Software and scanned for spam

--
Petr "Nenik" Nejedly, NetBeans/Sun Microsystems, http://www.netbeans.org
355/113 -- Not the famous irrational number PI, but an incredible simulation!

[Daniel Sheppard-4]

Petr,

It sounds reasonable to put it into the RELNOTES + wiki.  It is fairly straightforward to overcome, but has the potential to shake the confidence of anyone casually trying NB.  Can you put this in, or is there something that I can do?

Daniel Sheppard

>
> From: Petr Nejedly <Petr.Nejedly@...>
> Date: 2007/12/07 Fri PM 02:03:39 GMT
> To: netcat@...
> Subject: Re: [60cat] [j2ee] High CPU usage
>
> Daniel Sheppard napsal(a):
> > Indeed, if I exclude the .netbeans user directory from scanning then everything seems okay.  I set this issue to WORKSFORME, but it was subsequently assessed as P4 and re-opened.
>
> So this should be at least RELNOTEd and mentioned in wiki/faq?
>
> > Daniel Sheppard
> >> From: msteffens <msteffens@...>
> >> Date: 2007/12/06 Thu PM 11:27:36 GMT
> >> To: netcat@...
> >> Subject: Re: [60cat] [j2ee] High CPU usage
> >>
> >>
> >> I've seen the same problem on two machines with McAffee installed. The
> >> netbeans java.exe and McAffee process both use up a lot of CPU.
> >>
> >>
> >> stroudcuster wrote:
> >>> I've also seen the same thing on a Window 2000 system w/ McAffee virus
> >>> scan, which I think may be the culprit.  It's particularly bad with
> >>> large/complex JSPs.
> >>>
> >>> Stroud Custer
> >>>
> >>> -------------- Original message --------------
> >>> From: Daniel Sheppard <choc_dan@...>
> >>>
> >>>> I'm seeing high CPU when I edit JSPs. The CPU stays high for some
> >>>> minutes. A
> >>>> thread dump shows that a jar or zip file is being scanned somewhere. I
> >>>> don't
> >>>> remember this from earlier release candidates.....
> >>>>
> >>>> Daniel Sheppard
> >>>>
> >>>> -----------------------------------------
> >>>> Email sent from www.virginmedia.com/email
> >>>> Virus-checked using McAfee(R) Software and scanned for spam
> >> --
> >> View this message in context: http://www.nabble.com/-j2ee--High-CPU-usage-tf4949285.html#a14203515
> >> Sent from the NetBeans - NetCAT mailing list archive at Nabble.com.
> >>
> >
> > -----------------------------------------
> > Email sent from www.virginmedia.com/email
> > Virus-checked using McAfee(R) Software and scanned for spam
>
>
> --
> Petr "Nenik" Nejedly, NetBeans/Sun Microsystems, http://www.netbeans.org
> 355/113 -- Not the famous irrational number PI, but an incredible simulation!
>

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[Peter Lam]

Some parts of this message have been removed. Learn more about Nabble's security policy.

文生 郭 wrote:

Hello,

I have to admit my deception after trying to model my components using the UML module of Netbeans.
I feeled like the authors didn't do any intense debugging and counted too much on the 60cat program to find the bugs for them.

... and I feel that not a lot of people in the 60cat program really tested the UML part.

Actually there's a QE team there to test the UML plugin. The purpose of the 60NetCAT program is not for the program participant to help find bugs in the product but to try out the product and provide feedback before final release. Of course bugs might be encountered during the try-out since it's not the final release.

1) After 10 min of creating "components" and name them on a component diagram, I save it. Then, I realize that the node of the diagram lost its name and can't be opened. No choice, I had to delete it.

Sorry to see that you encountered this problem. Sounds like the issue might be the same as issue 122924, but I am unable to reproduce it with component diagram. Are you using the final version of NetBeans 6.0? Could you please provide the steps to reproduce the issue or you can file a bug in the UML as well if you think this is a different problem.

2) Thankfully, the components that I created are still in the model section, and I just needed to create a new empty diagram and drag them there. But  I ran into other kind of problems:
- I can't drag and drop more than 1 component at the same time and had to do the gesture 12 times to put them all on my new diagram.

A better way to recreate your diagram is to select all the components or elements that you want to include in the diagram, right click on the selection and select "Create Diagram From Selected Elements" menu item, and then select the diagram type you want from the diagram dialog.

- Some of the dependencies that I made between the components doesn't show up on the diagram.

Sounds like a refresh issue. You can click on the diagram window's toolbar button "Relationship Discovery" to automatically display your existing links.

- The arcs that represent the dependencies are represented as set of segments and when I move the component within the diagram, the joins between the segments don't move at all, leaving me in front of a big graphical mess.

Please file a bug on this. In the meantime, there are a few pre-defined diagram layouts that may satisfy your preference. These are the few toolbar buttons on the right of the diagram window.

- There is no way to know the direction of the dependency from the project view when we see the dependencies of a component (they use the same icon for both directions).

The properties window can be used to see the detail of this. Once the link is selected, the properties window will display the client and supplier components.

Sorry guys, but I think I lost my illusion of "the only IDE I need" for tonight and I am gonna use my whiteboard and a pen.

Vincent Cantin

---

Besoin d'un e-mail ? Créez gratuitement un compte Windows Live Hotmail, la boîte e-mail entièrement personnalisable ! Windows Live Hotmail

Thanks,
--Peter

[文生 郭]

>> 1) After 10 min of creating "components" and name them on a component diagram, I save it. Then, I realize that the node of the diagram lost its name and can't be opened. No choice, I had to delete it.
> Sorry to see that you encountered this problem. Sounds like the issue might be the same as issue 122924, but I am unable to reproduce it with component diagram. Are you using the final version of NetBeans 6.0? Could you please provide the steps to reproduce the issue or you can file a bug in the UML as well if you think this is a different problem.

I used the final version of nb6.0. I took a look at the bug description, and it seems that I faces the same one. However, the kind of diagram that I was using was a component diagram. I will try to see how to reproduce the bug, if possible.

>> - I can't drag and drop more than 1 component at the same time and had to do the gesture 12 times to put them all on my new diagram.
> A better way to recreate your diagram is to select all the components or elements that you want to include in the diagram, right click on the selection and select "Create Diagram From Selected Elements" menu item, and then select the diagram type you want from the diagram dialog.

Ok, thank you for the info. However, it would be useful and more intuitive if the drag and drop could still work with many nodes selected at the same time.

Thank you for your answer.
_________________________________________________________________
Vous êtes plutôt Desperate ou LOST ? Personnalisez votre PC avec votre série TV préférée !
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[Peter Lam]

文生 郭 wrote:

1) After 10 min of creating "components" and name them on a component diagram, I save it. Then, I realize that the node of the diagram lost its name and can't be opened. No choice, I had to delete it.
      

Sorry to see that you encountered this problem. Sounds like the issue might be the same as issue 122924, but I am unable to reproduce it with component diagram. Are you using the final version of NetBeans 6.0? Could you please provide the steps to reproduce the issue or you can file a bug in the UML as well if you think this is a different problem.
    

I used the final version of nb6.0. I took a look at the bug description, and it seems that I faces the same one. However, the kind of diagram that I was using was a component diagram. I will try to see how to reproduce the bug, if possible.
  

Yes, it might be the same one. I upgraded the priority on issue 122924 to a P2 with component diagram added to the comment. It's be nice if you can reproduce the bug again and update it in the issue so the development team will be able to debug it.

- I can't drag and drop more than 1 component at the same time and had to do the gesture 12 times to put them all on my new diagram.
      

A better way to recreate your diagram is to select all the components or elements that you want to include in the diagram, right click on the selection and select "Create Diagram From Selected Elements" menu item, and then select the diagram type you want from the diagram dialog.
    

Ok, thank you for the info. However, it would be useful and more intuitive if the drag and drop could still work with many nodes selected at the same time.

Thank you for your answer.
  

You're very welcome. I agree with you that it's more useful and intuitive for multiple selected nodes be drag-n-dropable. I think there's already a bug there for this issue but I couldn't find it now. You or I can file a new one for this issue. If I don't see you filing one, I'll file one tomorrow.

Thanks,
--Peter

_________________________________________________________________
Vous êtes plutôt Desperate ou LOST ? Personnalisez votre PC avec votre série TV préférée !
http://specials.divertissements.fr.msn.com/SeriesTV.aspx
  

[George Vasick]

I encountered the missing diagram bug with using a class diagram while
testing something else yesterday afternoon.  I was able to reproduce it
multiple times, so I filed a P1 for it:

http://www.netbeans.org/issues/show_bug.cgi?id=123909


Thanks,
George


Peter Lam wrote:

>
>
> 文生 郭 wrote:
>>>> 1) After 10 min of creating "components" and name them on a component diagram, I save it. Then, I realize that the node of the diagram lost its name and can't be opened. No choice, I had to delete it.
>>>>      
>>> Sorry to see that you encountered this problem. Sounds like the issue might be the same as issue 122924, but I am unable to reproduce it with component diagram. Are you using the final version of NetBeans 6.0? Could you please provide the steps to reproduce the issue or you can file a bug in the UML as well if you think this is a different problem.
>>>    
>>
>> I used the final version of nb6.0. I took a look at the bug description, and it seems that I faces the same one. However, the kind of diagram that I was using was a component diagram. I will try to see how to reproduce the bug, if possible.
>>  
> Yes, it might be the same one. I upgraded the priority on issue 122924
> to a P2 with component diagram added to the comment. It's be nice if you
> can reproduce the bug again and update it in the issue so the
> development team will be able to debug it.
>
>>  
>>>> - I can't drag and drop more than 1 component at the same time and had to do the gesture 12 times to put them all on my new diagram.
>>>>      
>>> A better way to recreate your diagram is to select all the components or elements that you want to include in the diagram, right click on the selection and select "Create Diagram From Selected Elements" menu item, and then select the diagram type you want from the diagram dialog.
>>>    
>>
>> Ok, thank you for the info. However, it would be useful and more intuitive if the drag and drop could still work with many nodes selected at the same time.
>>
>> Thank you for your answer.
>>  
> You're very welcome. I agree with you that it's more useful and
> intuitive for multiple selected nodes be drag-n-dropable. I think
> there's already a bug there for this issue but I couldn't find it now.
> You or I can file a new one for this issue. If I don't see you filing
> one, I'll file one tomorrow.
>
> Thanks,
> --Peter
>
>
>> _________________________________________________________________
>> Vous êtes plutôt Desperate ou LOST ? Personnalisez votre PC avec votre série TV préférée !
>> http://specials.divertissements.fr.msn.com/SeriesTV.aspx
>>  

[_alexz09]

I have the same problem. I haven't any antivirus active on any of the netbeans folder, but the problem persists. Another possible problem is to have a really low processor, but is not my case: Athlon64 3400+.
I had set netbeans with Xmx1024m for not complaining about not enouf memory.
Please help.

P.S. Sorry for my bad English.

Daniel Sheppard-4 wrote:

Indeed, if I exclude the .netbeans user directory from scanning then everything seems okay.  I set this issue to WORKSFORME, but it was subsequently assessed as P4 and re-opened.

Daniel Sheppard
>
> From: msteffens <[e-mail]>
> Date: 2007/12/06 Thu PM 11:27:36 GMT
> To: [e-mail]
> Subject: Re: [60cat] [j2ee] High CPU usage
>
>
> I've seen the same problem on two machines with McAffee installed. The
> netbeans java.exe and McAffee process both use up a lot of CPU.
>
>
> stroudcuster wrote:
> >
> > I've also seen the same thing on a Window 2000 system w/ McAffee virus
> > scan, which I think may be the culprit.  It's particularly bad with
> > large/complex JSPs.
> >
> > Stroud Custer
> >
> > -------------- Original message --------------
> > From: Daniel Sheppard <[e-mail]>
> >
> >> I'm seeing high CPU when I edit JSPs. The CPU stays high for some
> >> minutes. A
> >> thread dump shows that a jar or zip file is being scanned somewhere. I
> >> don't
> >> remember this from earlier release candidates.....
> >>
> >> Daniel Sheppard
> >>
> >> -----------------------------------------
> >> Email sent from www.virginmedia.com/email
> >> Virus-checked using McAfee(R) Software and scanned for spam
> >
>
> --
> View this message in context: http://www.nabble.com/-j2ee--High-CPU-usage-tf4949285.html#a14203515
> Sent from the NetBeans - NetCAT mailing list archive at Nabble.com.
>

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