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[protege-discussion] Minimum Memory Required for a PJVM WebProtege Installation

Tania Tudorache tudorache at
Thu Jun 2 13:43:22 PDT 2011

Hi Scott,

We have documented the troubleshooting steps on the Protege wiki:

Please follow them, and let us know if you still have problems. If you 
still do, please send the logs as described in the wiki, and tell us if 
you are using the local mode or the external server mode.

The memory requirement depends on whether you are running the local or 
external server mode, on the size of your ontology and whether you are 
using a file or database backend. If you did not get an out of memory 
exception, then this is not the cause of your problem.


On 06/02/2011 01:19 PM, Scott Arenson wrote:
> I am getting a Java heap error with a new installation of WebProtege 
> and the error message "Message: 500 The call failed on the server" 
> when trying to load an ontology. The application is on a shared PJVM. 
> Is there a recommended amount of memory for WebProtege?
> Thanks for any help,
> Scott
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