JanusGraph and OpenSearch

docker-compose.yml

version: "3"

services:
  janusgraph:
    image: janusgraph/janusgraph:0.6.2
    container_name: jce-janusgraph
    env_file:
      - janusgraph.env
    ports:
      - "8182:8182"
    networks:
      - jce-network
    depends_on:
      - cassandra
      - opensearch

  cassandra:
    image: cassandra:3
    container_name: jce-cassandra
    ports:
      - "9042:9042"
      - "9160:9160"
    networks:
      - jce-network
    volumes:
      - janusgraph-data:/var/lib/cassandra

  opensearch:
    image: docker.io/opensearchproject/opensearch:2.4.0
    container_name: jce-elastic
    hostname: jce-elastic
    env_file:
      - opensearch.env
    ports:
      - 9200:9200 # REST API
      - 9600:9600 # Performance Analyzer
    networks:
      - jce-network
    volumes:
      - janusgraph-index:/usr/share/opensearch/data

  dashboard:
    image: opensearchproject/opensearch-dashboards:2.4.0
    container_name: opensearch-dashboards
    ports:
      - 5601:5601
    environment:
      OPENSEARCH_HOSTS: '["https://opensearch:9200"]'
    networks:
      - jce-network

networks:
  jce-network:


volumes:
  janusgraph-index:
  janusgraph-data:

janusgraph.env

JANUS_PROPS_TEMPLATE=cql-es

janusgraph.storage.hostname=jce-cassandra
janusgraph.graph.replace-instance-if-exists=true
janusgraph.query.batch=true

index.search.backend=elasticsearch
janusgraph.index.search.hostname=jce-elastic
janusgraph.index.search.elasticsearch.http.auth.type=BASIC
janusgraph.index.search.elasticsearch.http.auth.basic.username=admin
janusgraph.index.search.elasticsearch.http.auth.basic.password=admin
janusgraph.index.search.elasticsearch.ssl.enabled=true
janusgraph.index.search.elasticsearch.ssl.disable-hostname-verification=true
janusgraph.index.search.elasticsearch.ssl.allow-self-signed-certificates=true

janusgraph.metrics.enabled=true
janusgraph.metrics.csvReporter.enabled=false
janusgraph.metrics.slf4jReporter.enabled=false
janusgraph.metrics.jmx.enabled=false

gremlinserver.channelizer=org.apache.tinkerpop.gremlin.server.channel.WsAndHttpChannelizer
gremlinserver.metrics.csvReporter.enabled=false
gremlinserver.metrics.jmxReporter.enabled=false
gremlinserver.metrics.slf4jReporter.enabled=false

gremlinserver.threadPoolWorker=2

opensearch.env

http.host=0.0.0.0
network.host=0.0.0.0
transport.host=127.0.0.1
cluster.name=opensearch-cluster # Name the cluster
node.name=jce-elastic # Name the node that will run in this container
discovery.type=single-node
compatibility.override_main_response_version=true
bootstrap.memory_lock=true # Disable JVM heap memory swapping
OPENSEARCH_JAVA_OPTS=-Xms512m -Xmx512m # Set min and max JVM heap sizes to at least 50% of system RAM

Hi,

I got https://github.com/humemai/janusgraph/blob/opensearch/janusgraph-dist/docker/examples/docker-compose-cql-es.yml working.

Just doing docker compose -f docker-compose-cql-es.yml up works, without the env files. I also tried opensearch v3, but it doesn't work. I think it has some breaking changes.

Sorry, I haven’t used JanusGraph for a while so I’m not able to help. Have there been any changes in the recent versions?

Everything is fine, except that JanusGraph still has to pretend that it's using ElasticSearch, not OpenSearch.