概述
- 设置外网访问
- 问题1.max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
- 问题2.system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
- 问题3.Caused by: java.lang.RuntimeException: can not run elasticsearch as root
- 问题4.max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
- 问题5.max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]
- 问题6.max number of threads [1024] for user [lish] likely too low, increase to at least [2048]
设置外网访问
- 更改
elasticsearch.yml
文件
network.host: 0.0.0.0
http.port: 9200
重新启动结果报错:
ERROR: [2] bootstrap checks failed
[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[2]: system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
问题1.max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
解决方法:切换到root用户修改配置sysctl.conf
vi /etc/sysctl.conf
添加下面配置(如果没修改过会是一个空文件,直接添加就行):
vm.max_map_count=655360
并执行命令:
sysctl -p
问题2.system call filters failed to install; check the logs and fix your configuration or disable system call filters at your own risk
问题原因:因为Centos6不支持SecComp,而ES5.2.1默认bootstrap.system_call_filter为true进行检测,所以导致检测失败,失败后直接导致ES不能启动。详见 :https://github.com/elastic/elasticsearch/issues/22899
解决方法:在elasticsearch.yml
中配置bootstrap.system_call_filter为false,注意要在Memory下面:
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
除此之外其他问题也可能需要修改:
问题3.Caused by: java.lang.RuntimeException: can not run elasticsearch as root
问题原因:不能用root帐户登录ElasticSearch
解决方法:https://blog.csdn.net/qq_38486203/article/details/80049724
问题4.max file descriptors [4096] for elasticsearch process likely too low, increase to at least [65536]
问题5.max number of threads [1024] for user [lishang] likely too low, increase to at least [2048]
解决方法:切换到root用户,编辑limits.conf
添加类似如下内容
vi /etc/security/limits.conf
添加如下内容:
soft nofile 65536
hard nofile 131072
soft nproc 2048
hard nproc 4096
问题6.max number of threads [1024] for user [lish] likely too low, increase to at least [2048]
解决方法:切换到root用户,进入limits.d
目录下修改配置文件。
vi /etc/security/limits.d/90-nproc.conf
修改如下内容:
soft nproc 1024
修改为:
soft nproc 2048
最后
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