1. 下載：
2. es無法root運行，需要創建一個非root用戶，例如我創建用戶及組es
groupadd es
useradd es -g es -p es
3. 將下載好的es解壓到es的home目錄，並改變所屬用戶和組為es
mv elasticsearch-7.14.0 /home/es/
chown -R es:es /home/es/elasticsearch-7.14.0
4. 切換到es用戶
su es
5. 啟動es
./elasticsearch，可能失敗，可以重啟一次，會占用終端，如果守護運行的話，如下執行
./elasticsearch -d -p pid
6. 測試
curl -X GET "localhost:9200/?pretty"
{
"name" : "localhost.localdomain",
"cluster_name" : "elasticsearch",
"cluster_uuid" : "FY5icTfwST2OI2tk2-5tFQ",
"version" : {
"number" : "7.14.0",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "dd5a0a2acaa2045ff9624f3729fc8a6f40835aa1",
"build_date" : "2021-07-29T20:49:32.864135063Z",
"build_snapshot" : false,
"lucene_version" : "8.9.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}