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直接安装

系统: centos7

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.6.0-linux-x86_64.tar.gz

sha512sum elasticsearch-7.6.0-linux-x86_64.tar.gz
#378322ed2b6782f98e2e22c80e82b1f483bdeb3c28f3f52c897cbd0e8e78848460865c9adedf21e59922aa03ecb28ac44c1fb3dcab4f1904ba58497bc40e1278  elasticsearch-7.6.0-linux-x86_64.tar.gz
cat elasticsearch-7.6.0-linux-x86_64.tar.gz.sha512 
#378322ed2b6782f98e2e22c80e82b1f483bdeb3c28f3f52c897cbd0e8e78848460865c9adedf21e59922aa03ecb28ac44c1fb3dcab4f1904ba58497bc40e1278  elasticsearch-7.6.0-linux-x86_64.tar.gz

启动报错

java.lang.RuntimeException: can not run elasticsearch as root
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:105)
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:172)
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:349)
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:170)
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:161)
    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125)
    at org.elasticsearch.cli.Command.main(Command.java:90)
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:126)
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
For complete error details, refer to the log at /root/es/elasticsearch-7.6.0/logs/elasticsearch.log

创建用户

[root@VM_0_8_centos elasticsearch-7.6.0]# adduser es
[root@VM_0_8_centos elasticsearch-7.6.0]# passwd es
更改用户 es 的密码 。
新的 密码：
无效的密码： 密码少于 7 个字符
重新输入新的 密码：
passwd：所有的身份验证令牌已经成功更新。
[root@VM_0_8_centos elasticsearch-7.6.0]# passwd es
更改用户 es 的密码 。
新的 密码：
无效的密码： 密码未通过字典检查 - 过于简单化/系统化
重新输入新的 密码：
passwd：所有的身份验证令牌已经成功更新。
[root@VM_0_8_centos elasticsearch-7.6.0]# passwd es
更改用户 es 的密码 。
新的 密码：
无效的密码： 密码包含用户名在某些地方
重新输入新的 密码：
抱歉，密码不匹配。
新的 密码：
重新输入新的 密码：
passwd：所有的身份验证令牌已经成功更新。
# soCool!!

再启动又报错

ERROR: [2] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2]: the default discovery settings are unsuitable for production use; at least one of [discovery.seed_hosts, discovery.seed_providers, cluster.initial_master_nodes] must be configured

执行

sudo sysctl -w vm.max_map_count=262144

在配置一下这两个就可以正常启动了

discovery.seed_hosts: ["127.0.0.1"]
cluster.initial_master_nodes: ["node-1"]

测试

[es@VM_0_8_centos elasticsearch-7.6.0]$ curl localhost:53200
{
  "name" : "VM_0_8_centos",
  "cluster_name" : "elasticsearch",
  "cluster_uuid" : "sNQeHKoLQu6MB4olvQR2bw",
  "version" : {
    "number" : "7.6.0",
    "build_flavor" : "default",
    "build_type" : "tar",
    "build_hash" : "7f634e9f44834fbc12724506cc1da681b0c3b1e3",
    "build_date" : "2020-02-06T00:09:00.449973Z",
    "build_snapshot" : false,
    "lucene_version" : "8.4.0",
    "minimum_wire_compatibility_version" : "6.8.0",
    "minimum_index_compatibility_version" : "6.0.0-beta1"
  },
  "tagline" : "You Know, for Search"
}
[es@VM_0_8_centos elasticsearch-7.6.0]$ curl localhost:53200/_cat/nodes
10.1.30.0 15 97 8 0.35 0.62 0.54 dilm * VM_0_8_centos

docker 部署

这个就简单了，下面是我本机测试可以跑的配置

version: '2.2'
services:
  es01:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.6.0
    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:7.6.0
    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:7.6.0
    container_name: es03
    links:
      - es01
      - es02
    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
  kibana:
    image: kibana:7.6.0
    container_name: kibana
    depends_on:
      - es01
    links:
      - es01:elasticsearch
    ports:
      - 5601:5601
    networks:
      - elastic
  cerebro:
    image: lmenezes/cerebro:0.8.5
    container_name: cerebro
    depends_on:
      - es01
    ports:
      - "9000:9000"
    command:
      -Dhosts.0.host=http://es01:9200
    networks:
      - elastic
volumes:
  data01:
    driver: local
  data02:
    driver: local
  data03:
    driver: local

networks:
  elastic:
    driver: bridge

这个适合用于本地学习测试, 访问 http://localhost:9000/

es状态.png

这个就友好多了