参考:https://www.cnblogs.com/anech/p/15957607.html
1、安装elastic search7
#手动下载安装
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.1-amd64.deb
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wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.17.1-amd64.deb.sha512
shasum -a 512 -c elasticsearch-7.17.1-amd64.deb.sha512
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sudo dpkg -i elasticsearch-7.17.1-amd64.deb
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#删除下载文件
sudo rm -r elasticsearch-7.17.1-amd64.deb && sudo rm -r elasticsearch-7.17.1-amd64.deb.sha512
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#运行 Elasticsearch systemd
sudo /bin/systemctl daemon-reload
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2、启动Elasticsearch
sudo systemctl enable elasticsearch.service && sudo systemctl start elasticsearch.service
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3、验证Elasticsearch是否正常
curl -X GET "localhost:9200/"
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还是没安装好呢,怎么办呢