ElasticSearch安装中遇到的各种问题记录

拼搏现实的明天。 2021-11-10 06:02 404阅读 0赞

一、注意事项

1.在elasticsearch的bin目录下运行./elasticsearch -d的时候必须使用非root账户，-d代表在后台运行，日志文件在log文件夹下面

2.关于配置文件，最重要的一点是在配置文件最后需要开启，能够解决：

\[4\]: 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

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70][]

二、启动时各种异常总结

\[1\]: max file descriptors \[4096\] for elasticsearch process is too low, increase to at least \[65535\]  
\[2\]: max number of threads \[3756\] for user \[flowyj\] is too low, increase to at least \[4096\]  
\[3\]: max virtual memory areas vm.max\_map\_count \[65530\] is too low, increase to at least \[262144\]

解决：

A.编辑/etc/security/limit.conf ,修改后文件如图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70 1][]

B.编辑 /etc/sysctl.conf,修改后文件如图：

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70 2][]

提示： 修改上述配置后需要重新登录才能生效

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70]: /images/20211109/0e5042e91fb94aa5b13dc7e7c3d19324.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70 1]: /images/20211109/1c793fcee00845ba89c0b94a64dfe0ca.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzIyMDA4NzM5_size_16_color_FFFFFF_t_70 2]: /images/20211109/3dc3fb81002d499e90f15edef3312f55.png