centos7 安装 elasticsearch 7.15

下载 elasticsearch

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.15.2-linux-x86_64.tar.gz

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.15.2-linux-x86_64.tar.gz.asc

wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.15.2-linux-x86_64.tar.gz.sha512

校验包完整性

shasum -a 512 -c elasticsearch-7.15.2-linux-x86_64.tar.gz.sha512

. 添加用户

useradd elk
报如下错误，是因为elasticsearch不能使用root用户运行

报错