1. 弹性搜索：
Elasticsearch 是一个分布式搜索和分析引擎。它是开源的，可用于所有类型的数据。它以Java编程语言实现，支持所有具有Java虚拟机 (JVM) 的操作系统。它是 Elastic Stack 的主要组件，Elastic Stack 是一个用于数据分析和可视化的开源应用程序。它具有很高的可扩展性，执行动作的速度也很高，这使其成为数据分析、处理和可视化的简单快捷的工具。
2. 亚马逊动态数据库：
Amazon DynamoDB 是一个具有高可扩展性的文档数据库。它是由亚马逊在 2012 年提供的。它有一个主数据库模型作为文档存储和键值存储。它有商业许可证。它使用事务并遵循 ACID 属性。有备份设施，安全性高。 Amazon DynamoDB 是一个持久且强大的数据库。它可以在一天内处理大量请求，并且得到全面管理。
Elasticsearch 和 Amazon DynamoDB 的区别：
| S.NO. | Elasticsearch | Amazon DynamoDB | |||
|---|---|---|---|---|---|
| 1. | Elasticsearch is a search and analytics engine based on Apache Lucene. | Amazon DynamoDB is a scalable database which has data stored on Amazon cloud. | |||
| 2. | The primary database model is a search engine. | Primary database model is document store and key value store in Amazon DynamoDB. | |||
| 3. | It has no concept of transactions. | It has concept of transactions satisfying ACID properties. | |||
| 4. | It was developed by ELASTIC in 2010. | It was developed by Amazon in 2012. | |||
| 5. | It supports all Operating systems with a Java virtual machine on them. | It supports hosted operating systems. | |||
| 6. | It is a open source software. | It is a commercial software. | |||
| 7. | It is implemented in java. | It does not have java as its implementation language. | |||
| 8. | It is not based on cloud. | It is based on cloud. | |||
| 9. | It is considered better than Amazon DynamoDB in terms of ranking. | It is considered less than Elasticsearch in terms of ranking. | 10. | It has Server-side scripts. | It doesn’t have Server-side scripts. |