elasticsearch部署到阿里云服务器问题

版权声明:fromZjy QQ1045152332 https://blog.csdn.net/qq_36762677/article/details/88706900

centos

1. 不能使用root启动es

需要创建用户
useradd es 创建用户es
passwd es 给已创建的用户es设置密码

删除 userdel es
改变文件所有者 -R递归
chown -R es:es /usr/local/elasticsearch

2.打开安全组策略后还是访问不到

您好,如果是elasticsearch,还需要在配置文件yml中修改监听地址为0.0.0.0

network.host: 0.0.0.0
http.port: 9200
http.cors.enabled: true
http.cors.allow-origin: "*"

3.启动报错65536

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: 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

4.启动报错2048

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

4.启动报错262144

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

5.启动报错:65536

max file descriptors [4096] for
elasticsearch process likely too low, increase to at least [65536]
解决:修改切换到root用户修改配置limits.conf 添加下面两行

命令:vi /etc/security/limits.conf

*        hard    nofile           65536
*        soft    nofile           65536

切换到es的用户。

然后,重新启动elasticsearch,即可启动成功。

6.后台运行

#1  进入bin目录
sh elasticsearch -d
#2  进入bin目录   回车两下
nohup ./elasticsearch &

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转载自blog.csdn.net/qq_36762677/article/details/88706900