运维系列&数据库系列：Elasticsearch 安装遇到的问题总结

Elasticsearch 安装遇到的问题总结

• Elasticsearch 安装遇到的问题总结
• • max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
  • • 解决办法：
  • max number of threads [3753] for user [XX] is too low, increase to at least [4096]…
  • • 解决办法
    • max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
    • 解决办法：

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Elasticsearch 安装遇到的问题总结

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

解决办法：

将当前用户的软硬限制调大。
找到文件 /etc/security/limits.conf，编辑，在文件的最后追加如下配置：

es soft nofile 65535
es hard nofile 65537

soft nofile表示软限制，hard nofile表示硬限制，
上面两行语句表示，es用户的软限制为65535，硬限制为65537，

max number of threads [3753] for user [XX] is too low, increase to at least [4096]…

解决办法

设置/etc/security/limits.conf

root soft nproc 5000
root hard nproc 5000

max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]

解决办法：

在 /etc/sysctl.conf文件最后添加一行

vm.max_map_count=262144

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阿年110

Elasticsearch 安装遇到的问题总结