Elasticsearch 安装

1、本地安装

1.1、环境准备

Elasticsearch 压缩包

# 这里使用的 7.8.0 版本
wget https://repo.huaweicloud.com/elasticsearch/7.8.0/elasticsearch-7.8.0-linux-x86_64.tar.gz

# 解压到 /usr/local/bin/
tar -zxvf elasticsearch-7.8.0-linux-x86_64.tar.gz -C /usr/local/bin/

JDK

1、# JDK（Elasticsearch 版本 7 之后，就自带 JDK）

创建用户

# 添加用户（es 不允许 root 用户启动）
adduser es
# 设置密码
passwd es
# 赋予 es 用户执行的权限
chown -R es /usr/local/bin/elasticsearch-7.8.0/

其他

如果遇到

问题：[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]

问题：[2]: max number of threads [3795] for user [es] is too low, increase to at least [4096]

解决：使用 root 用户，vim /etc/security/limits.conf

添加以下两条配置，表示允许所有用户打开的文件数为 65536

• soft nofile 65536

• hard nofile 65536

重新打开会话才生效

1.2、配置

vim config/elasticsearch.yml

node.name: node-1
network.host: 0.0.0.0
http.port: 9200
discovery.seed_hosts: ["127.0.0.1"]
cluster.initial_master_nodes: ["node-1"]

配置密码

# 添加以下配置
xpack.security.enabled: true
xpack.license.self_generated.type: basic
xpack.security.transport.ssl.enabled: true

# 添加配置之后，重启 es，然后进入 es 的 bin 目录
./elasticsearch-setup-passwords interactive

1.3、启动

# 切换 es 用户
su - es
# 启动
 /usr/local/bin/elasticsearch-7.8.0/bin/elasticsearch -d

2、Docker

services:
  elasticsearch:
    image: elasticsearch:7.7.0
    volumes:
      - /etc/localtime:/etc/localtime
      - ./es/plugins:/usr/share/elasticsearch/plugins
      - ./es/data:/usr/share/elasticsearch/data
    ports:
      - '9200:9200'
      - '9300:9300'
    container_name: elasticsearch
    restart: always
    environment:
      - 'cluster.name=elasticsearch'
      - 'discovery.type=single-node'
      - 'ES_JAVA_OPTS=-Xms1024m -Xmx1024m'
  kibana:
    image: kibana:7.7.0
    container_name: kibana
    restart: always
    volumes:
      - /etc/localtime:/etc/localtime
      - ./kibana/config/kibana.yml:/usr/share/kibana/config/kibana.yml
    ports:
      - '5601:5601'
    links:
      - elasticsearch:es
    environment:
      - ELASTICSEARCH_URL=http://10.1.1.1:9200
      - I18N_LOCALE=zh-CN
    depends_on:
      - elasticsearch

kibana 配置

server.host: '0.0.0.0'
# Elasticsearch 地址
elasticsearch.hosts: ['http://127.0.0.1:9200']
monitoring.ui.container.elasticsearch.enabled: true