1 问题：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]
vi /etc/security/limits.conf
* soft nofile 65536
* hard nofile 131072
* soft nproc 2048
* hard nproc 4096
vi /etc/sysctl.conf
vm.max_map_count=655360
保存后执行：
sysctl -p
2 报错 the default discovery settings are unsuitable for production use
单机启动 设置单机master修改 elasticsearch.yml
cluster.initial_master_nodes: ["node-1"]
3.开通外网
修改elasticsearch.yml
network.host: 0.0.0.0