power_grid

Multi-Thread a Traversal to find the energization status of a power grid

Instructions

1. Build it:

    mvn clean package
   

2. Copy target/power-grid-1.0-SNAPSHOT.jar to the plugins/ directory of your Neo4j server.

3. Download additional jars to the plugins/ directory of your Neo4j server.

    http://central.maven.org/maven2/org/roaringbitmap/RoaringBitmap/0.6.27/RoaringBitmap-0.6.27.jar
   

4. Configure Neo4j by adding a line to conf/neo4j.conf on version >= 3.0:

    dbms.unmanaged_extension_classes=net.geirina=/v1
   

5. Start Neo4j server.

6. Check that the extension is installed correctly over HTTP:

    :GET /v1/service/helloworld
   

7. Warm up the database:

    :GET /v1/service/warmup
   

8. Run this command to add an index on Equipment(equipment_id):

    :POST /v1/schema/create
   

9. Run the command:

    :POST /v1/energization/ {"ids":["1"]}
   

10. Clear the results:

    :POST /v1/energization/clear
    

11. Try the SPI version:

     :POST /v1/energization/spi {"ids":["1"]}
    

12. Clear the results:

    :POST /v1/energization/clear
    

13. Try the streaming version:

    :POST /v1/energization/streaming {"ids":["1"]}           
    

14. Clear it again and try the multi-threaded version:

    :POST /v1/energization/clear
    :POST /v1/energization/multi {"ids":["1"]}
    

15. Performance Testing:

    curl -u neo4j:swordfish -w "@format.txt" -o /dev/null -s -H "Content-Type: application/json" -X POST -d '{ "ids" : ["1"]}' http://localhost:7474/v1/energization
    curl -u neo4j:swordfish -H "Content-Type: application/json" -X POST http://localhost:7474/v1/energization/clear
    curl -u neo4j:swordfish -w "@format.txt" -o /dev/null -s -H "Content-Type: application/json" -X POST -d '{ "ids" : ["1"]}' http://localhost:7474/v1/energization/spi
    curl -u neo4j:swordfish -H "Content-Type: application/json" -X POST http://localhost:7474/v1/energization/clear
    curl -u neo4j:swordfish -w "@format.txt" -o /dev/null -s -H "Content-Type: application/json" -X POST -d '{ "ids" : ["1"]}' http://localhost:7474/v1/energization/streaming
    curl -u neo4j:swordfish -H "Content-Type: application/json" -X POST http://localhost:7474/v1/energization/clear
    curl -u neo4j:swordfish -w "@format.txt" -o /dev/null -s -H "Content-Type: application/json" -X POST -d '{ "ids" : ["1"]}' http://localhost:7474/v1/energization/multi