dhis2-devs team mailing list archive

[Jose Garcia Muñoz <josemp10@xxxxxxxxx>]

Hi Morten, all,

so, yes, in PSI we have several programs which metatadata needs to be
downloaded using long API calls (throuth the DHIS2-SDK) resulting in really
long json objects. But, as Ignacio said, we are getting an OutOfMemory
exception in one of our servers. To give you an idea, that call generates a
json object which size is about 3 MB -> it downloads the metadata of a
program that contains around 100 D.Elements, each dataelement has around 10
dataelement attriibutes and the program is activated in hundreds of org.
units.

The server shows the following information:


   - memoryInfo: "Mem Total in JVM: 1552 Free in JVM: 874 Max Limit: 1552",
   - javaOpts: "-Djava.security.egd=file:/dev/./urandom -Xmx1700m -Xms1250m"


Finally, the server is running a 2.22 DHIS2 version (revision 21773)...

However, we are not getting that error if we run the same API call in other
server with the same memory configuration BUT running a 2.20 version
(instead of 2.22).

So, do you have an idea of what is it happening here? Maybe are we close to
the limit of memory of some object that for some reason is not being
throwed in 2.20 but in 2.22?. Could it be a problem related just with the
2.22 version?

Also, we are going to work with programs of above 800 Data Elements (weird,
we know) so I can easly think in objetcs of above 10 MB... Could it be a
problem? What is the memory configuration that we need?

Copying here again the API call:
https://hnqis-staging.psi-mis.org/api/programs/wK0958s1bdj?fields=*%2CtrackedEntity%5B*%5D%2CprogramIndicators%5B*%5D%2CprogramStages%5B*%2C%21dataEntryForm%2Cprogram%5Bid%5D%2CprogramIndicators%5B*%5D%2CprogramStageSections%5B*%2CprogramStageDataElements%5B*%2CprogramStage%5Bid%5D%2CdataElement%5B*%2Cid%2CattributeValues%5B*%2Cattribute%5B*%5D%5D%2CoptionSet%5Bid%5D%5D%5D%2CprogramIndicators%5B*%5D%5D%2CprogramStageDataElements%5B*%2CprogramStage%5Bid%5D%2CdataElement%5B*%2CoptionSet%5Bid%5D%5D%5D%5D%2CprogramTrackedEntityAttributes%5B*%2CtrackedEntityAttribute%5B*%5D%5D%2C%21organisationUnits%29

Thanks guys!

Regards
Jose

On Thu, Jan 21, 2016 at 4:42 PM, Ignacio Foche <nacho.foche@xxxxxxxxx>
wrote:

> Hello everyone,
>
> while using the SDK in its 2.22-legacy branch in our app, when we pull
> data and metadata from a 2.22 DHIS2 server, we're getting an OutOfMemory
> exception, that seems to come from the following api call
>
> https://hnqis-staging.psi-mis.org/api/programs/wK0958s1bdj?fields=*%2CtrackedEntity%5B*%5D%2CprogramIndicators%5B*%5D%2CprogramStages%5B*%2C%21dataEntryForm%2Cprogram%5Bid%5D%2CprogramIndicators%5B*%5D%2CprogramStageSections%5B*%2CprogramStageDataElements%5B*%2CprogramStage%5Bid%5D%2CdataElement%5B*%2Cid%2CattributeValues%5B*%2Cattribute%5B*%5D%5D%2CoptionSet%5Bid%5D%5D%5D%2CprogramIndicators%5B*%5D%5D%2CprogramStageDataElements%5B*%2CprogramStage%5Bid%5D%2CdataElement%5B*%2CoptionSet%5Bid%5D%5D%5D%5D%2CprogramTrackedEntityAttributes%5B*%2CtrackedEntityAttribute%5B*%5D%5D%2C%21organisationUnits%29
>
> I attach the complete Tomcat response.
>
> Do you have any idea about why are we getting this problem in a 2.22
> server while in an equivalent 2.20 server everything's working fine (with
> the same amount of memory available for Tomcat)? Is this an api bug?
>
> Thank you in advance
>
>
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