来源：https://mp.weixin.qq.com/s/pgYIzfEwGSLjTx7xOuAILg
es安装
es有两种安装方式，一种直接在linux系统安装，另一种基于容器安装。
1.在linux系统下安装es7需先安装好jdk11或以上版本，容器安装不需要考虑，下面以docker安装为例。
2.基于centos7以上的docker安装
1）docker方式拉去镜像
docker pull docker.elastic.co/elasticsearch/elasticsearch:7.12.0
2)单节点启动
docker run -p 9200:9200 -p 9300:9300 -e "discovery.type=single-node" docker.elastic.co/elasticsearch/elasticsearch:7.12.0
docker-compose方式
1）创建docker-compose.yml 单机的伪集群
version: '2.2'
services:
es01:
image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
container_name: es01
environment:
-node.name=es01
- cluster.name=es-docker-cluster
-discovery.seed_hosts=es02,es03
-cluster.initial_master_nodes=es01,es02,es03
-bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data01:/usr/share/elasticsearch/data
ports:
- 9200:9200
networks:
-elastic
es02:
image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
container_name: es02
environment:
-node.name=es02
- cluster.name=es-docker-cluster
-discovery.seed_hosts=es01,es03
-cluster.initial_master_nodes=es01,es02,es03
-bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data02:/usr/share/elasticsearch/data
networks:
-elastic
es03:
image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
container_name: es03
environment:
-node.name=es03
- cluster.name=es-docker-cluster
-discovery.seed_hosts=es01,es02
-cluster.initial_master_nodes=es01,es02,es03
-bootstrap.memory_lock=true
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"ulimits:
memlock:
soft: -1
hard: -1
volumes:
- data03:/usr/share/elasticsearch/data
networks:
-elastic
volumes:
data01:
driver: local
data02:
driver: local
data03:
driver: local
networks:
elastic:
driver: bridge
docker-compose单节点模式
version:'3'
services:
elasticsearch:
image: docker.elastic.co/elasticsearch/elasticsearch:7.12.0
restart: always
hostname: es1
container_name: es-single
volumes:
- /home/docker/elasticsearch/data:/home/docker/elasticsearch/data
- /home/docker/elasticsearch/plugins:/home/docker/elasticsearch/plugins
- /home/docker/elasticsearch/config/elasticsearch.yml:/home/docker/elasticsearch/config/elasticsearch.yml
environment:
- "ES_JAVA_OPTS=-Xms512m -Xmx512m"
- discovery.type=single-node
ports:
- '9200:9200'
- '9300:9300'
privileged: true
docker-compose up -d 后台运行，并且分别执行docker logs es01，docker logs es02，ocker logs es03 查看日志
最后注意在linux下设置：vm.max_map_count
grep vm.max_map_count /etc/sysctl.conf
vm
.max_map_count=262144
3）再次docker-compose ps -a 查看容器运行情况
Es中文分词离不开ik插件，下面介绍ik插件的安装
IK插件安装
1.下载idk插件 https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.12.0/elasticsearch-analysis-ik-7.12.0.zip
2.放入plugins的目录下解压
3.重新启动es即可
来源：https://mp.weixin.qq.com/s/pgYIzfEwGSLjTx7xOuAILg
