elasticsearch5.x安装配置

2019-01-20  本文已影响2人  CHIMPL

elasticsearch5.x下载与启动

  1. 下载

    wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.5.1.tar.gz

  2. 解压

    tar -xzvf elasticsearch-5.5.1.tar.gz

  3. 创建非ROOT用户,并授权

    chown -R yt elasticsearch-5.5.1

  4. 修改配置elasticsearch.yml

    network.host: 127.0.0.1,192.168.137.128 
    http.cors.enabled: true 
    http.cors.allow-origin: “*” 
    cluster.name: “yt-es”
    
  5. 启动es

    /bin/elasticsearch

    • 出现错误:

      ERROR:bootstrap checks failed 
      max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536] 
      max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144] 
      
    1. 错误1:linux默认es操作文件句柄数太小

      vi /etc/security/limits.conf 
      yt hard nofile 65536 
      yt soft nofile 65536
      

      yt是es启动用户名,并用以下命令查看是否修改成功

      ulimit -Hn

    2. 错误2:是操作系统的vm.max_map_count参数设置太小导致的,请使用root用户登录系统,执行以下命令:

      sysctl -w vm.max_map_count=655360

      并用以下命令查看是否修改成功

      sysctl -a | grep “vm.max_map_count”

    3. OpenJDK 64-Bit Server VM warning: INFO: os::commit_memory(0x0000000085330000, 2060255232, 0) failed; error=’Cannot allocate memory’ (errno=12)

      这个错误是虚拟机分配es内存不足,因为是在测试搭建es,需要把内存有2g改小到512m,正式环境还需调整为更大数值。

      vi es/config/jvm.options

    • /bin/elasticsearch
      再次启动,重启访问正常。
  6. 集群安装

    修改配置elasticsearch.yml

    network.host: 127.0.0.1,192.168.137.128 
    http.port: 9200 
    transport.tcp.port: 9300 
    http.cors.enabled: true 
    http.cors.allow-origin: “*” 
    cluster.name: “yt-es” 
    node.master: true 
    node.data: true 
    http.enabled: true 
    discovery.zen.ping.unicast.hosts:     [“192.168.137.128:9300”,”192.168.137.128:9301”,”192.168.137.128:9302”] 
    

    删除es下面因为启动生成的data文件,然后复制多份,修改为集群配置,启动集群。

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