Hi Tantely, Please have a look at our guidelines for reporting a problem. <http://dhis2.github.io/dhis2-docs/master/en/implementer/html/ch09s03.html>
Please include the logs of the server when it crashes as this will help to diagnose what the issue might be. Regards, Jason On Fri, Mar 18, 2016 at 12:43 PM, Raminosoa Rabemanantsoa, Tantely < tramino...@mikolo.org> wrote: > Hello everyone, > > > I am a new user of DHIS2. I am working with a DHIS2 application that has > already been installed last year inside an Amazon cloud web server. The > version that we have is DHIS2 2.19. The Tomcat version is 1.7. All the data > elements, organization unit and questionnaires have been integrated into > the system. > > > We are observing odd situation such as Tomcat is crashing each time a > couple of users (15+) are accessing DHIS2 simultaneously, especially when > they are using the DHIS2 Data Capture within tablets. DHIS2 is only back > after restarting Tomcat. > > > Do you know the Server and JVM memory specifications that are recommended > to expect about 300 concurrent DHIS2 users? > > > Here are some Java environment variables and server caracteristics that we > are using: > > > Java opts: -Xms1024m -Xmx2048m -XX:PermSize=256m > -XX:MaxPermSize=512m > > Java version: 1.7.0_91 > > OS name: Linux > > OS architecture: amd64 > > OS version: 4.1.10-17.31.amzn1.x86_64 > > Server memory: Mem Total in JVM: 1243 Free in JVM: 547 Max Limit: 1820 > > CPU cores: 2 > > Server RAM: 3.75 G > > > Thank you for your support! > > > Tantely. > > *This message and its attachments are confidential and solely for the > intended recipients. If received in error, please delete them and notify > the sender via reply e-mail immediately.* > _______________________________________________ > Mailing list: https://launchpad.net/~dhis2-users > Post to : dhis2-users@lists.launchpad.net > Unsubscribe : https://launchpad.net/~dhis2-users > More help : https://help.launchpad.net/ListHelp > > -- Jason P. Pickering email: jason.p.picker...@gmail.com tel:+46764147049
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