Import Database issues with HA

[sashman-jaspin]

It takes well over 10 minutes to import the 10k whisky database with HA. Without HA it takes 2 seconds. I've got to be doing something horribly wrong. I have this config on three 5ghz servers which should be chewing this workload up :

services:
  arcadedb:
    image: arcadedata/arcadedb:26.3.2
    container_name: arcadedb
    hostname: ${SERVER_HOSTNAME}
    restart: unless-stopped
    ports:
      - "2480:2480"   # Studio / HTTP
      - "2424:2424"   # HA replication
    volumes:
      - ./databases:/home/arcadedb/databases
    environment:
      JAVA_OPTS: "${JAVA_OPTS}"
    extra_hosts:
      - "arcade-db-1:172.17.1.230"
      - "arcade-db-2:172.17.1.231"
      - "arcade-db-3:172.17.1.232"
    logging:
      driver: local
      options:
        max-size: "10m"
        max-file: "5"

SERVER_HOSTNAME=arcade-db-1
JAVA_OPTS=-Darcadedb.ha.quorumTimeout=120000 
-Darcadedb.ha.quorum=majority 
-Darcadedb.server.rootPassword=xxxxxxxxxxx 
-Darcadedb.server.mode=production 
-Darcadedb.server.name=arcadedb-230 
-Darcadedb.ha.enabled=true 
-Darcadedb.ha.clusterName=xxxxxxxxxxx 
-Darcadedb.ha.serverList=172.17.1.230:2424,172.17.1.231:2424,172.17.1.232:2424 
-Darcadedb.ha.replicationIncomingHost=0.0.0.0 
-Darcadedb.ha.serverRole=any

---

In production mode studio does not work, it 404s. So ran the import command line :

time curl -u root:xxxxxxxxxxx -X POST http://172.17.1.230:2480/api/v1/command/Whisky \
  -H "Content-Type: application/json" \
  -d '{"language":"sql","command":"IMPORT DATABASE https://github.com/ArcadeData/arcadedb-datasets/raw/main/orientdb/Whisky.gz"}'

{"error":"Error on transaction commit","detail":"Error on importing database -> Error on parsing source 'https://github.com/ArcadeData/arcadedb-datasets/raw/main/orientdb/Whisky.gz (compressed=true size=9594)' -> Error on importing OrientDB database -> Timeout waiting for quorum (2) to be reached for request 30","exception":"com.arcadedb.exception.CommandExecutionException"}

[lvca]

We just merged the new HA module and I'm going to test this use case. One thing we noticed, synchronous operations, by default, waits for the majority quorum. With 3 nodes it's 2 nodes. So each transactions pays the latency of waiting for confirmation. This is the worst scenario for massive insertion in cluster.

Much better using the async api that should allow thousands ops/sec.

I'll run some test

[lvca]

Just tested a similar database in the same format (OrientDB) and with 3 nodes takes a few seconds.

Pull the latest version, main branch and try running RaftImportOrientDB3NodesIT.java.

So the new HA architecture is much faster.