Re: [Winstone-devel] JSP scratch path

[Premek B. <br...@ki...>]

Hi Rick,

good tip, works without problems.  Thanks a lot!

Premek

On 8.12.2007 7:50, Rick Knowles wrote:
> Premek,
> 
> Glad it's working out well for you - nice to know it's helping do a
> little good.
> 
> Regarding the scratch path: I'm not sure exactly how jasper does it, but
> I was under the impression it uses the webapps temp dir setting, which
> is drawn (by winstone) from the command line java.io.tmpdir property, so
> if you start winstone with
> 
> java -Djava.io.tmpdir=<scratchpath> -jar winstone.jar --webroot= ...
> 
> it should allow you to define a separate scratchpath per container
> instance. As Jasper is essentially a webapp-scoped feature (i.e. nothing
> JSP related is shared by the container across webapps), it ends up using
> the tomcat "work" directory for scratch when deployed in tomcat.
> Winstone uses the java.io.tmpdir property to draw the location of the
> place it uses instead of the "work" directory.
> 
> Good luck - hope this helps,
> 
> Rick
> 
> Premek Brada wrote:
>> Hello,
>>
>> first of all, thanks Rick for Winstone - we use this marvellous little
>> thing in a university course where 80+ students learn their first
>> servlets and JSPs, and it's working really well (one winstone per
>> student, zero server load, easy restarts - situation incomparable to
>> that when we used tomcat for the same job ;-).
>>
>> We have however run into one issue: when multiple winstones are running
>> on a single server, the JSP compilation scratch directory is the same
>> for all of them.  In turn, when two students have a JSP with the same
>> name (which they are bound to have) their changes get mutually
>> overwritten.
>>
>> Is there any way how to solve this, ie. how to give each winstone a
>> different scratch directory?  At least a quick hack for now, and in the
>> longer term something like --jspScratchDir option, ideally?
>>
>> Thanks,
>> Premek
>>
>>   
> 


-- 
Premek Brada (Ing et MSc, PhD)
  Lecturer, Department of Computer Science and Engineering
  University of West Bohemia in Pilsen, CZ
  << brada at kiv.zcu.cz | www.kiv.zcu.cz/~brada/ | +420-377-63-2435 >>

  "Major success exists in embryonic form 15 years
   before it becomes a major success." (B.Stroustroup)