Re: [enhydra] Hung during simultaneous download of large file

[Slobodan Vujasinovic <slobodan@xxxxxxxxxxxxx>]

Hi,

we had problem with concurrent reading of cached PO resources but that 
problem is resolved in new EAF (TAF) 7.0-beta1 release!

You can disable PO file caching by setting PresentationManager's 
"CacheFiles" property value to "false" or update EAF (TAF) binaries to 
new version.

NOTE: Runtime binaries are placed in 
"<enhydra_root>/multiserver/shared/lib" directory!

<app_name>.conf
---------------------------------------
PresentationManager.CacheFiles = false


web.xml
---------------------------------------
<env-entry>
 <env-entry-name>PresentationManager/CacheFiles</env-entry-name>
 <env-entry-value>false</env-entry-value>
 <env-entry-type>java.lang.String</env-entry-type>
</env-entry>


Regards,
 Slobodan Vujasinovic
Enhydra Development Team



K C Lau wrote:

> Hi,
>
> After upgrading from Enhydra 3.1.1 to Enhydra Server 6.5.1, we 
> encountered this problem:
>
> When more than one client is downloading a large file at the same time 
> from our Enhydra application, only one can complete while the others 
> will hang forever waiting for the request to complete. We first found 
> this problem with Flash swf files of around 1 MB in size but confirmed 
> that it also happens to other files such as large jpg files.
>
> It is ok when downloading different files at the same time.
>
> We tried downloading the same file using FileServlet and it was ok.
>
> We also tried with Enhydra 3.1.1 and it was ok too.
>
> Our platform is Windows 2000 Server running Jdk 1.4.2.
>
> Has anybody had the same problem?
>
> We noticed that there were some changes in HttpPresentationManager and 
> CachedFilePresentation from 3.1.1 and we would like to try change the 
> source in EAF 6.5.1 and troubleshoot the problem. Is there some simple 
> instruction to set up the environment and compile EAF on Windows from 
> command console or from Enhydra Eclipse 3.0 IDE?
>
> Thanks in advance for your help.
>
> Best regards,
> KC Lau.
>
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