1.下载Elasticsearch7

   直接去官网下载.可慢了.下载了一个小时才下完.

  2.下载完了解压压缩包

tar -zxvf xxxx

  3.移动目录

mv elasticsearch-7.2.0   /usr/local/

  3.新建一个用户,es不让你用root.

useradd  es

passwd es

chown -R  es elasticsearch-7.2.0

4.修改配置文件

vim config/elasticsearch.yml
#修改为自己的ip
network.host: x.x.x.x
#把这个注释先放开
cluster.initial_master_nodes: ["node-1", "node-2"]

　5.启动

./elasticsearch

6.错误解决,如果出现以下错误.

[1]: max file descriptors [4096] for elasticsearch process is too low, increase to at least [65535]
[2]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
[3]: 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

vim /etc/security/limits.conf

*               soft    nofile          65536
*               hard    nofile          65536

*               soft    nproc           4096
*               hard    nproc           4096

vi /etc/sysctl.conf

vm.max_map_count=262144

sysctl -p

至此可以启动了.