| Editorial information provided by DB-Tools |
| System |
| Name |
Amazon DynamoDB |
Riak |
| Version |
released Jan 2012 |
2.2.0 (released Nov 17) |
| Drawbacks |
Very few features when compared to other key-value stores |
basho.com had funding problems and the company was sold to bet365.com in aug 2017. There is little clarity on product vision after the sale |
| Advantages |
Managed Database Service provided by a leading cloud provider |
1.http calls for crud operations(unlike sql queries)
2.multi-datacenter replication |
| Languages Supported |
Java, Node.js, Go, C# .NET, Perl, PHP, Python, Ruby, Haskell and Erlang. |
Ruby, Java, Erlang and Python |
| Website |
aws.amazon.com/dynamodb |
www.basho.com |
| XML Support |
no |
NA |
| 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 |
Distributed NoSQL key-value data store that offers high availability, fault tolerance, operational simplicity, and scalability. There are three variants riakkv (keyvalue), riakts(time series) and riakcs (distributed storage) |
| Database Model |
Key Value Model |
Key Value Store |
| Technical Documentation |
aws.amazon.com/documentation/dynamodb |
https://docs.basho.com/ |
| License |
commercial on aws cloud. |
Open Source. Multi Data Centre Replication needs an enterprise license |
| Cloud-based / SaaS |
Yes but you can download dynamod db locally as well. Local installation does not have vendor support |
SaaS options
AWS-https://aws.amazon.com/marketplace/pp/B00AMRXCQA/ref=mkt_m3_riak,
On-Prem available as well |
| Implementation Language |
C++ |
Erlang |
| Operating System Supported |
Linux , OS X, Windows |
Linux , OS X, Windows |
| Options for Integration / Access API |
Rest API |
Rest API, ProtocolBuffers, Native Erlang Interface |
| Consistency |
Immediate consistency |
Eventual consistency |
| Foreign Keys |
No |
No |
| Streaming Support |
No |
No |
| Analytics Support |
NA |
No |
| Data Storage Schema |
Key Value Model |
Key Value Store with separate instances for timeseries,key-value and storage |
| Notable Users |
As per Amazon the solution has been deployed by around 100,000 customers |
weather.com,bestbuy.com,nhs.co.uk,github.com |
| Key Differentiator |
Amazon allows developers to purchase a service based on throughput, rather than storage. |
Multi DataCenter Replication. This feature is not offered by any other nosql vendor |
| Concurrency |
Yes |
Yes |
| Partitioning |
Sharding |
Sharding |
| Replication |
Multi Data Center Replication supported |
Multi Data Center Replication supported |
| Secondary Indexes |
Yes |
-- |
| SchemaLess |
Yes |
-- |
| SQL Query |
No |
-- |
