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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