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Dynamo is a set of techniques that together can form a highly available key-value structured storage system [1] or a distributed data store. [1] It has properties of both databases and distributed hash tables (DHTs).
Amazon DynamoDB is a managed NoSQL database service provided by Amazon Web Services (AWS). It supports key-value and document data structures and is designed to handle a wide range of applications requiring scalability and performance.
Name Developer Availability Client Interface License Description/Notes Aerospike DBS: Aerospike Company: 2012 Java, C#, C, Python, Go, Node.js, Perl, libevent, PHP ...
SELECT * FROM database1. foo vs. SELECT * FROM database2. foo (no explicit schema between database and table) SELECT * FROM [database1.] default. foo vs. SELECT * FROM [database1.] alternate. foo (no explicit database prefix) The problem that arises is that former MySQL users will create multiple databases for one project. In this context ...
Different NoSQL databases, such as DynamoDB, MongoDB, Cassandra, Couchbase, HBase, and Redis, exhibit varying behaviors when querying non-indexed fields. Many perform full-table or collection scans for such queries, applying filtering operations after retrieving data.
SAP HANA: This is a column-orientated in-memory database that stores data in its memory instead of keeping it on a disk.It claims to store data in columnar fashion in main memory and supports both online analytical processing (OLAP) and online transactional processing (OLTP) in the same system.
AWS DynamoDB: A stateless NoSQL database, eliminates traditional connection pooling, making it inherently scalable and serverless-friendly. This ecosystem of tools and services empowers architects to design highly scalable and efficient applications while minimizing connection management overhead.
Some researchers have made a functional and experimental analysis of several distributed file systems including HDFS, Ceph, Gluster, Lustre and old (1.6.x) version of MooseFS, although this document is from 2013 and a lot of information are outdated (e.g. MooseFS had no HA for Metadata Server at that time).