docker compose部署cassandra集群的操作代码

version: '3'
services:
  cassandra:
    restart: always
    image: cassandra:3.11.10
    hostname: cassandra1
    container_name: cassandra-node-1
    environment:
      - CASSANDRA_BROADCAST_ADDRESS=cassandra1
      - CASSANDRA_SEEDS=cassandra1,cassandra3
    extra_hosts:
      - "cassandra1:192.168.1.100"
      - "cassandra3:192.168.1.103"
    ports:
      - "9042:9042"
      - "7000:7000"
    volumes:
      - cassandra_data:/var/lib/cassandra
volumes:
  cassandra_data:

version: '3'
services:
  cassandra:
    restart: always
    image: cassandra:3.11.10
    hostname: cassandra3
    container_name: cassandra-node-3
    environment:
      - CASSANDRA_BROADCAST_ADDRESS=cassandra3
      - CASSANDRA_SEEDS=cassandra1,cassandra3
    extra_hosts:
      - "cassandra1:192.168.1.100"
      - "cassandra3:192.168.1.103"
    ports:
      - "9042:9042"
      - "7000:7000"
    volumes:
      - cassandra_data:/var/lib/cassandra
volumes:
  cassandra_data:

sysctl -w vm.max_map_count=262144

sudo swapoff -a

# Edit the sysctl config file
sudo vi /etc/sysctl.conf
# Add a line to define the desired value
# or change the value if the key exists,
# and then save your changes.
vm.max_map_count=262144
# Reload the kernel parameters using sysctl
sudo sysctl -p
# Verify that the change was applied by checking the value
cat /proc/sys/vm/max_map_count

docker compose up -d

#在A机器pingB机器
docker exec -ti cassandra-node-1 cqlsh -u cassandra -pcassandra cassandra3 -e "DESCRIBE CLUSTER"

Cluster: Test Cluster
Partitioner: Murmur3Partitioner