ES集群搭建

• sysctl -w vm.max_map_count=262144
• docker network ls 查看docker网络
• docker network create --driver bridge --subnet=172.18.0.0/16 --gateway=172.18.1.1 mynet
• 查看网络信息
  docker network inspect mynet
• docker pull crpi-t67h6arnld1idgs2.cn-beijing.personal.cr.aliyuncs.com/gulimall-images/elasticsearch:7.4.2

http://192.168.56.10:9201/_nodes/process?pretty 查看节点状况
http://192.168.56.10:9201/_cluster/stats?pretty 查看集群状态
http://192.168.56.10:9201/_cluster/health?pretty 查看集群健康状况
http://192.168.56.10:9202/_cat/nodes 查看各个节点信息
$ curl localhost:9200/_cat
/_cat/allocation
/_cat/shards
/_cat/shards/{index}
/_cat/master
/_cat/nodes
/_cat/indices
/_cat/indices/{index}
/_cat/segments
/_cat/segments/{index}
/_cat/count
/_cat/count/{index}
/_cat/recovery
/_cat/recovery/{index}
/_cat/health
/_cat/pending_tasks
/_cat/aliases
/_cat/aliases/{alias}
/_cat/thread_pool
/_cat/plugins
/_cat/fielddata
/_cat/fielddata/{fields}
/_cat/nodeattrs
/_cat/repositories
/_cat/snapshots/{repository}

主节点

for port in $(seq 1 3); \
do \
mkdir -p /mydata/elasticsearch/master-${port}/config
mkdir -p /mydata/elasticsearch/master-${port}/data
chmod -R 777 /mydata/elasticsearch/master-${port}
cat << EOF >/mydata/elasticsearch/master-${port}/config/elasticsearch.yml
cluster.name: my-es #集群的名称，同一个集群该值必须设置成相同的
node.name: es-master-${port} #该节点的名字
node.master: true #该节点有机会成为master 节点
node.data: false #该节点可以存储数据
network.host: 0.0.0.0
http.host: 0.0.0.0 #所有http 均可访问
http.port: 920${port}
transport.tcp.port: 930${port}
#discovery.zen.minimum_master_nodes: 2 #设置这个参数来保证集群中的节点可以知道其它N 个有master 资格的节点。官方推荐（N/2）+1
discovery.zen.ping_timeout: 10s #设置集群中自动发现其他节点时ping 连接的超时时间
discovery.seed_hosts: ["172.18.0.21:9301", "172.18.0.22:9302", "172.18.0.23:9303"] #设置集群中的Master 节点的初始列表，可以通过这些节点来自动发现其他新加入集群的节点，es7的新增配置
cluster.initial_master_nodes: ["172.18.0.21"] #新集群初始时的候选主节点，es7 的新增配置
EOF
docker run --name elasticsearch-node-${port} \
-p 920${port}:920${port} -p 930${port}:930${port} \
--network=mynet --ip 172.18.0.2${port} \
-e ES_JAVA_OPTS="-Xms300m -Xmx300m" \
-v /mydata/elasticsearch/master-${port}/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /mydata/elasticsearch/master-${port}/data:/usr/share/elasticsearch/data \
-v /mydata/elasticsearch/master-${port}/plugins:/usr/share/elasticsearch/plugins \
-d crpi-t67h6arnld1idgs2.cn-beijing.personal.cr.aliyuncs.com/gulimall-images/elasticsearch:7.4.2
done

子节点

for port in $(seq 4 6); \
do \
mkdir -p /mydata/elasticsearch/node-${port}/config
mkdir -p /mydata/elasticsearch/node-${port}/data
chmod -R 777 /mydata/elasticsearch/node-${port}
cat << EOF >/mydata/elasticsearch/node-${port}/config/elasticsearch.yml
cluster.name: my-es #集群的名称，同一个集群该值必须设置成相同的
node.name: es-node-${port} #该节点的名字
node.master: false #该节点有机会成为master 节点
node.data: true #该节点可以存储数据
network.host: 0.0.0.0
#network.publish_host: 192.168.56.157 #互相通信ip，要设置为本机可被外界访问的ip，否则无法通信
http.host: 0.0.0.0 #所有http 均可访问
http.port: 920${port}
transport.tcp.port: 930${port}
#discovery.zen.minimum_master_nodes: 2 #设置这个参数来保证集群中的节点可以知道其它N 个有master 资格的节点。官方推荐（N/2）+1
discovery.zen.ping_timeout: 10s #设置集群中自动发现其他节点时ping 连接的超时时间
discovery.seed_hosts: ["172.18.0.21:9301", "172.18.0.22:9302", "172.18.0.23:9303"] #设置集群中的Master 节点的初始列表，可以通过这些节点来自动发现其他新加入集群的节点，es7的新增配置
cluster.initial_master_nodes: ["172.18.0.21"] #新集群初始时的候选主节点，es7 的新增配置
EOF
docker run --name elasticsearch-node-${port} \
-p 920${port}:920${port} -p 930${port}:930${port} \
--network=mynet --ip 172.18.0.2${port} \
-e ES_JAVA_OPTS="-Xms300m -Xmx300m" \
-v /mydata/elasticsearch/node-${port}/config/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /mydata/elasticsearch/node-${port}/data:/usr/share/elasticsearch/data \
-v /mydata/elasticsearch/node-${port}/plugins:/usr/share/elasticsearch/plugins \
-d crpi-t67h6arnld1idgs2.cn-beijing.personal.cr.aliyuncs.com/gulimall-images/elasticsearch:7.4.2
done