ES安装-单机版

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#新建es 用户 并分配文件权限，切换到es用户

useradd es
chown -R es /opt
su es

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cd /opt
tar -zxvf /opt/elasticsearch-7.6.2-linux-x86_64.tar.gz && mv elasticsearch-7.6.2 /opt/es

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##指定数据文件夹
path.logs: /opt/log/es
path.data: /opt/data/es

##端口号
http.port: 9201


## 配置外网访问
network.host: 0.0.0.0

##集群名
cluster.name: "yu-cluster"

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指定下jvm占用内存，注意要一样，否则启动要报错
-Xms512m
-Xmx512m

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/opt/es/bin/elasticsearch -d

#后台启动

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curl localhost:9200

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{
  "name" : "ODlUaXJ",
  "cluster_name" : "yu-cluster",
  "cluster_uuid" : "YffkRwifTQ-ZKzBpXA0_jA",
  "version" : {
    "number" : "5.6.16",
    "build_hash" : "3a740d1",
    "build_date" : "2019-03-13T15:33:36.565Z",
    "build_snapshot" : false,
    "lucene_version" : "6.6.1"
  },
  "tagline" : "You Know, for Search"
}

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vm.max_map_count=655360

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sysctl -p