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System AWS DynamoDB ElasticSearch
 Name Amazon DynamoDB ElasticSearch
 Version released Jan 2012 Version 6.4.1 (released in September 2018)
 Drawbacks Very few features when compared to other key-value stores Elasticsearch AMI not available
 Advantages Managed Database Service provided by a leading cloud provider Large number of drivers present for integration
 Languages Supported Java, Node.js, Go, C# .NET, Perl, PHP, Python, Ruby, Haskell and Erlang. .Net Groovy Java JavaScript Perl PHP Python Ruby
 Website aws.amazon.com/­dynamodb www.elastic.co/­products/­elasticsearch
 XML Support no no
 JSON Support yes yes
 Brief description Amazon DynamoDB is a fully managed proprietary NoSQL database service that supports key-value and document data structures[2] and is offered by Amazon.com as part of the Amazon Web Services portfolio Elasticsearch is a search engine based on Lucene. It provides a distributed, multitenant-capable full-text search engine with an HTTP web interface and schema-free JSON documents.
 Database Model Key Value Model Key Value NoSQL Model
 Technical Documentation aws.amazon.com/­documentation/­dynamodb www.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.html
 License commercial on aws cloud. Open Source. Commercial version with HA available with redislabs.com
 Cloud-based / SaaS Yes but you can download dynamod db locally as well. Local installation does not have vendor support ElasticSearch Cloud Cluster available from ElasticSearch
 Implementation Language C++ C,C++
 Operating System Supported Linux , OS X, Windows Linux OS X Solaris Windows
 Options for Integration / Access API Rest API Proprietary protocol using JSON
 Consistency Immediate consistency Highly Consistent
 Foreign Keys No No
 Streaming Support No Yes
 Analytics Support NA NA
 Data Storage Schema Key Value Model Inverted Index
 Notable Users As per Amazon the solution has been deployed by around 100,000 customers --
 Key Differentiator Amazon allows developers to purchase a service based on throughput, rather than storage. No known Enterprise Competitor apart from Amazaon Cloud Search
 Concurrency Yes Yes
 Partitioning Sharding Yes
 Replication Multi Data Center Replication supported Yes
 Secondary Indexes Yes Yes
 SchemaLess Yes Yes
 SQL Query No No