linux 安装 elasticsearch

1. 下载

# 注意下载版本
cd /usr/local/src
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.4.0.tar.gz

2、安装

cd /usr/local/src
tar -xvf elasticsearch-5.4.0.tar.gz

• 添加es用户

useradd es

添加es用户密码

passwd es

将文件夹elasticsearch-5.4.2赋予es权限

chown -R es:es /usr/local/src/elasticsearch-5.4.0

切换为es用户

su es

3、设置elasticsearch.yml

vi config/elasticsearch.yml

加入内容：

cluster.name: elasticsearch
node.name: node-1
network.host: 0.0.0.0 
http.port: 9200
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
cluster.initial_master_nodes: ["node-1"]

​

4、启动

bin/elasticsearch -d

• 异常1

[1]: max virtual memory areas vm.max_map_count [65530] is too low, increase to at least [262144]
ERROR: Elasticsearch did not exit normally - check the logs at /usr/local/src/elasticsearch-7.8.1/logs/elasticsearch.log

解决：

sudo vim /etc/sysctl.conf

#添加参数
...
vm.max_map_count = 262144

重新加载/etc/sysctl.conf配置

sysctl -p