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BUILDING.md

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Building JanusGraph

Required:

  • Java 8
  • Maven 3

To build without executing tests:

mvn clean install -DskipTests=true

To build with default tests:

mvn clean install

To build with default plus TinkerPop tests*:

mvn clean install -Dtest.skip.tp=false

To build with only the TinkerPop tests*:

mvn clean install -Dtest.skip.tp=false -DskipTests=true

Building Docker Image for JanusGraph Gremlin Server

To build and run Docker images with JanusGraph and Gremlin Server, configured to run the BerkeleyJE backend and Elasticsearch (requires Docker Compose):

mvn clean install -Pjanusgraph-release -Dgpg.skip=true -DskipTests=true && mvn docker:build -Pjanusgraph-docker -pl janusgraph-dist
docker-compose -f janusgraph-dist/janusgraph-dist-hadoop-2/docker-compose.yml up

Note the above docker-compose call launches containers in the foreground and is convenient for monitoring logs but add "-d" to instead run in the background.

To connect to the server in the same container on the console:

docker exec -i -t janusgraph /var/janusgraph/bin/gremlin.sh

Then you can interact with the graph on the console through the :remote interface:

gremlin> :remote connect tinkerpop.server conf/remote.yaml
==>Configured localhost/127.0.0.1:8182
gremlin> :remote console
==>All scripts will now be sent to Gremlin Server - [localhost/127.0.0.1:8182] - type ':remote console' to return to local mode
gremlin> GraphOfTheGodsFactory.load(graph)
==>null
gremlin> g = graph.traversal()
==>graphtraversalsource[standardjanusgraph[berkeleyje:db/berkeley], standard]

Building on Eclipse IDE

Note that this has only been tested on Eclipse Neon.2 Release (4.6.2) with m2e (1.7.0.20160603-1933) and m2e-wtp (1.3.1.20160831-1005) plugin.

To build without executing tests:

  1. Right-click on your project -> "Run As..." -> "Run Configurations..."
  2. On "Goals", populate with install
  3. Select the options Update Snapshots and Skip Tests
  4. Before clicking "Run", make sure that Eclipse knows where JAVA_HOME is. On same window, go to "Environment" tab and click "New".
  5. Under "Name:", add JAVA_HOME
  6. Under "Value:", add the path where java is located
  7. Click "OK"
  8. Then click "Run"

To find the Java binary in your environment, run the appropriate command for your operating system:

  • Linux/macOS: which java
  • Windows: for %i in (java.exe) do @echo. %~$PATH:i