.net core 与ELK（1）安装Elasticsearch

1.安装java jdk

[elsearch@localhost bin]$ java -version
openjdk version "1.8.0_181"
OpenJDK Runtime Environment (build 1.8.0_181-b13)
OpenJDK -Bit Server VM (build 25.181-b13, mixed mode)

2.去官网下载https://www.elastic.co/cn/downloads/elasticsearch

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.7.1.tar.gz

3.解压

tar -zvxf elasticsearch-6.7.1.tar.gz -C /usr/local

4.设置创建用户

[root@localhost ~]# groupadd elsearch
[root@localhost ~]# useradd elsearch -g elsearch -p elasticsearch
[root@localhost ~]# passwd elsearch  # 设置密码

5.更改解压的文件的owner

[root@localhost ~]# cd /usr/local/
[root@localhost /usr/local]# chown -R elsearch:elsearch elasticsearch-6.7.1/

6.尝试启动bin目录下的elasticsearch

[elsearch@localhost bin]$ ./elasticsearch

7.报错解决

错误：max virtual mefnory areas vm.max_ map_count [ 65530 ] 15 too low, increase toa t least [ 262144 ]

在配置文件最后一行加上：
vm.max_map_count=655360

执行

[root@localhost bin]#  vi /etc/sysctl.con

错误：max file descriptors [ 4096 ] for elasticsearch process 15 too low, increase to at least [ 65536 ]

etc目录下

用 vi ./limits.conf 进入limits.conf进行编辑，修改如下：

elsearch soft nofile
elsearch hard nofile
elsearch soft nproc
elsearch hard nproc 

报错：跟Access相关的

用ll查下相关文件的owner，然后改为用户elsearch

8.编辑elasticsearch.yml配置文件，使本地主机可以访问els所在虚拟机

[elsearch@localhost config]$ vi elasticsearch.yml

9.test

./elasticsearch -d   #启动

本地浏览器访问http://10.2.2.139:9200/