Pretty frustrating, yet hopefully small problem I'm running into.
I've just downloaded and installed NetLogo 5.0.5 for my windows 8 machine, standard install in to Program Files (x86). When I try to run the .exe I get this error message
The JVM could not be started. The maximum heap size (-Xmx) me be too large or an antivirus or firewall tool could block the execution.
I've been through the NetLogo User guide recommended protocols of accessing the .vmoptions file and changing
-Xmx1024m
to
-Xmx512m
in order to solve the max heap size issue, but I'm still receiving the same error message. I'm assuming therefore that it has something to do with my antivirus or firewall. I've recently switched my antivirus from Norton Internet Security to Bitdefender, and this is when the problem started to appear.
Any suggestions?
Much thanks!
Googling "BitDefender Java" gives a bunch of results indicating that BitDefender is aggressive about blocking Java-based software (such as NetLogo). The most useful-seeming link I see is:
http://forum.bitdefender.com/index.php?showtopic=28551
but you might try the search yourself and see what you turn up.
So it seems this primarily a question about BitDefender, rather than primarily a question about NetLogo. If you need help configuring BitDefender, perhaps someone here can help you. Or, you might have better luck at http://forum.bitdefender.com or http://superuser.com than here; Stack Overflow is primarily for programming questions.
Related
so my general problem right now is that I'm SSHing into another computer and would like to download Java, however a lot of what I would need to get things set up can only be accessed, from what I can tell so far, from a download off the web browser. Of course there are likely several solutions to this, such as ways to download the environment and language outside of a web browser, but at the same time I'd like to know the general strategies one would take in downloading new languages and environments on a computer they are SSHed into, or don't have as much utility in its use. Thank you!
I'm having a massive problem trying to write a file into the c:\windows\system32 directory. The code works fine on 32 bit machines, however does not work on 64 bit machines.
My user account is an administrator on the machine, and even right clicking and choosing to run the app as administrator does not solve the issue.
When writing the file, no exception is thrown, but the file is not written.
I have read various posts regarding adding an app.manifest file containing the requestedExecutionLevel node to my solution, but as yet am unable to get this to work. I have a feeling this may be because I'm using vb.net rather than c#.net
Has anybody encountered this issue before? I'd be delighted if somebody could provide an example VS2010 VB.Net project with a correctly configured app.manifest file as I'm a little unsure whether my attempts at setting this up are correct.
(also, this is not a malicious app I am writing, I'm working on a version control app for our team and need to be able to interface with IIS files held in c:\windows\system32\inetsrv\config).
Thanks
David
Maybe the file is written under UAC Virtualization and located under C:\Users\Username\AppData\Local\VirtualStore\Windows\System32
Windows Blog - Tips on what is going on behind the scenes.
TechNet - Look under Data Redirection
Under Local Sercurity Policies there is the following option which controls UAC Virtualization.
This may be a too broad question but how would you develop a simple web-based IDE/editor? For a lecture I was thinking of a simple editor where you could enter some sort of code, press compile and then display the results, error messages etc. in some way.
Does anyone knows some examples (with source code maybe), or any suggestions on how to do this conceptually?
Or you could try http://codepad.org/
You might also be interested in taking a look at the very new Eclipse Orion project, in particular the architecture overview: http://wiki.eclipse.org/Orion/Architecture
Koding provides a framework for you to develop html5 applications with access to a real Ubuntu VM with Root. The idea for this post, being that you can develop an IDE that works with Client and Server languages, without having to deal with security of giving people access to machines that you are hosting. Security is hard with machines and avoiding exploits
I've read several stablity issues with modmono under high load. The root of the problem is GC and the solution is restarting modmono every n hours, and n should be decreased based on error frequency.
I'm planning to develop a heavy load site with mono (I've .net experience and a little java), and I've fears based on this issues like session interruption, http errors ...
At this starting stage of the project, should I switch to Java/tomcat or trust to mod_mono ?
Regards
Depending on how long developing your site (http://www.mono-project.com/Compacting_GC) might be ready for production. While, googleing found some complaints about stability, many were from 2006. Push comes to shove, if mono/mod_mono fail to live up to stability, you could always deploy from windows/iss.
It's a bit of a calculated risk at this point, but if you run into any issues, I'm sure the mod_mono mailing list would help sort out any issues.
I'm investigating the use of mono in real world high traffic web applications. There are some references on the mono site (companies using mono), but I couldn't find a high traffic website sample other than Deki powered ones. And I've read some mailings about mod_mono stability problems because of inexistence of compacting GC.
Please reference your app and give some info, if is there anyone using mono in production.
...or do I have to look at Java ?
Regards,
sirmak
Wikipedia is using Mono for search (also listed on the companies using Mono page)
A ton of people use Mono in production and development. I'm sure this page will change dramatically over the next year or so, but look at http://www.mono-project.com/Companies_Using_Mono. This is a good reference, but projects using Mono are popping up every day, so we'll see more soon.
Lunchwalla.com uses Mono for its website. It receives fairly high traffic. There is also a little blog item regarding the set up - http://blog.lunchwalla.com/2010/04/23/the-tech-behind-lunchwalla/
Go for it. Beyond the initial setup work and tuning you can have a very stable and fast server with all the advantages of low-resource required do the the job, at least with nginx/lighttpd. mod_mono (Apache) resources will go way faster according to a lot of feedback I've been reading on the all the major places this topic is discussed
From #mono (IRC)
<ruionwriting> ahall: in apache what is your feel about the performance compared with nginx?
<ahall> the fastcgi implementation is just a bit buggy and buy sending few concurrent requests to it it hogged 99% cpu and didn't get out of it. I will switch to nginx + fastcgi as soon as its suitable for me in production
<ahall> buy = by
<ahall> but yeah i always use nginx instead of apache whenever possible, but with mono i dont recommend it
This last part I don't have to agree based on the setup I have.
This question on stack overflow must me included here.