Search Mailing List Archives

Limit search to: Subject & Body Subject Author
Sort by: Reverse Sort
Limit to: All This Week Last Week This Month Last Month
Select Date Range     through    

[protege-discussion] ChAO slows down Protege Server significantly

Restel, Hannes Hannes.Restel at
Tue Nov 15 02:34:36 PST 2011


I'm using Collaborative Protege in Client Server mode including a ChAO (Change Annotation Ontology).
The ontology itself has got something like 1.5MB, but the ChAO has got around 45MB of file size.
This results the Protégé Clients to freeze regularily, waiting for synchronizing data, I guess.
These freezes occur 2-3 times a minute, each taking around 10seconds..

What exactly happens that makes Protégé so slow?
Is there a workaround, i.e. in the Protégé Server settings? (except emptying the CHaO...)


M.Sc. Hannes Restel | Fraunhofer-Institut für Software- und Systemtechnik ISST
Sichere Business IT-Infrastrukturen, Wissenschaftl. Mitarbeiter
Steinplatz 2, 10623 Berlin, Germany
Telefon: +49 (0)30/24 306-324
mailto:hannes.restel at

-----Ursprüngliche Nachricht-----
Von: protege-discussion-bounces at [mailto:protege-discussion-bounces at] Im Auftrag von Csongor Nyulas
Gesendet: Dienstag, 15. November 2011 06:30
An: protege-discussion at
Betreff: [protege-discussion] [POSSIBLE VIRUS:###] Re: (no subject)

Hi Tanumeet,

You should be able to open .owl files the exact same way as Ana explained to you how to open the .pprj file.
(FYI: the .pprj file contains, besides the references to the content stored either in the .owl file or the .pins and .pont files, the Protege project configuration, i.e. which tabs are open, form configurations, etc)

I downloaded the amino-acid.owl file from the following URL:
(which I zipped up and attached to this email for you) and I could open it with Protege without any problem.
Can you? If not, please check the Protege console. Do you get any exceptions?


On 11/13/2011 9:37 AM, Tanumeet Kaur Juneja wrote:
> how will the file with the extension .owl open?
> i was trying to open amino-acid.owl. and wsant able to.
> Thank u

More information about the protege-discussion mailing list