A command line tool to generate large amount of data for performance test of the DHIS2 application. This application generates a file containing INSERT statements that can be imported into the database.
Java 8
Postgres
mvn clean install
Datagen uses the same configuration file used by DHIS2 for connecting to the database. Upon starting, the application builds a cache of common entities (such as Programs). The cache is populated by accessing the database configured in the standard dhis2 configuration file.
java -jar target/datagen-0.0.1-SNAPSHOT.jar
helpshows a contextual helpgengenerates the INSERT file
-S--sizenumber of entities to generate-T--typetype of entities to generate (currently only the optionTEIis supported)-F--filelocation of the target file
--eventsrange of events to generate for each TEI (format XX-XX, e.g. 1-10)--attributesrange of attributes values to generate for each TEI (format XX-XX, e.g. 1-10)--dataValuesrange of data values to generate for each TEI (format XX-XX, e.g. 1-10)
Example:
gen -S 100000 -T TEI -F /home/dhis2/10K.sql --events 1-5 --attributes 10-20 --dataValues 1-10
The above command will generate a file containing the INSERT statements for ten thousands TEI. Each TEI
will have a random number of events between 1 and 5, a random number of attribute values between 10 and 20 and
a random number of Data Values between 1 and 10.
When starting a generation process, the application gets the first available primary key from all the tables that are involved in the generation and increment each id for each generated row. After the file is generated and imported into the database, the application sequences are out of sync.