linux上安装elasticsearch时遇到的问题及解决办法

1、启动 elasticsearch 如出现异常  can not run elasticsearch as root  

解决方法:创建ES 账户,修改文件夹 文件 所属用户 组

2、启动异常:ERROR: bootstrap checks failed
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

3、启动后,如果只有本地可以访问,尝试修改配置文件 elasticsearch.yml
中network.host(注意配置文件格式不是以 # 开头的要空一格, : 后要空一格)
为 network.host: 0.0.0.0

默认端口是 9200

注意:关闭防火墙 或者开放9200端口

4、ERROR: bootstrap checks failed


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

5、max number of threads [1024] for user [lish] likely too low, increase to at least [2048]


解决: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




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


解决:切换到root用户修改配置sysctl.conf


vi /etc/sysctl.conf 


添加下面配置:


vm.max_map_count=655360


并执行命令:


sysctl -p

然后,重新启动elasticsearch,即可启动成功。

文章转载自:https://blog.csdn.net/liangzhao_jay/article/details/56840941

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