DHIS2-RTS (Real-Time Stock management) uses a native DHIS2 Tracker program for recording all stock transactions (distributions, discards and stock corrections). A healthcare facilities is expected to handle about 100-300 TEIs (healthcare products) and record about 10,000 to 100,000 events per OU per year.
We have have confirmed that natively DHIS2 allows to limit the number of downloaded events only for an Event program but not for a Tracker program. We are concerned that, eventually, the large number of event data stored in the local database on the mobile device will exceed the available storage, slow down and eventually stall the Capture app. We have seen the Capture Android app “stalling” and the mobile phone screen turning black for several minutes if the user has access to a large number OUs and synchronises data from an “aggregate” Data entry form.
DHIS2 recommends the following specifications for mobile devices:
RAM: recommended 4-8 Gb
Storage: recommended 32-128 Gb
Can somebody who actually implemented a Tracker program at scale please confirm how many events a mobile device can store and handle without impairing the use of the Capture Android app.
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