ES一些可能的用途：
1、在線商店（ run an online web store）—— 搜索購買的產品（search for products that you sell），如此你可使用ES存儲你的整個產品的目錄和存貨清單，並提供搜索自動完成提示。（In this case, you can use Elasticsearch to store your entire product catalog and inventory and provide search and autocomplete suggestions for them.）
2、收集你想要分析的日誌或事務數據，挖掘此數據以便尋找趨勢、統計、摘要、異常（ collect log or transaction data and you want to analyze and mine this data to look for trends, statistics, summarizations, or anomalies. ）如此你可使用Logstash 收集、聚合、解析你的數據，然後讓Logstash把這數據餵給Elasticsearch。（In this case, you can use Logstash (part of the Elasticsearch/Logstash/Kibana stack) to collect, aggregate, and parse your data, and then have Logstash feed this data into Elasticsearch.）一旦數據進入Elasticsearch，你就可以運行搜索和聚合來挖掘任何你感興趣的信息。（Once the data is in Elasticsearch, you can run searches and aggregations to mine any information that is of interest to you.）
3、運行一個價格提醒平臺，這個平臺能夠運行價格瞭解型客戶指定一個規則像是“我對特定種類的電池感興趣，且我想要如果下個月任意供應商的電池價格下降X刀的話就通知我一下”。（run a price alerting platform which allows price-savvy customers to specify a rule like "I am interested in buying a specific electronic gadget and I want to be notified if the price of gadget falls below $X from any vendor within the next month". ）在此例中你可以抓取商家價格，把它們推到ES中且使用它的反向搜索（過濾器）能力將價格變動與用戶查詢相匹配最終一旦找到匹配項即推送通知給客戶。（In this case you can scrape vendor prices, push them into Elasticsearch and use its reverse-search (Percolator) capability to match price movements against customer queries and eventually push the alerts out to the customer once matches are found.）
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