cassandra——分布式扩展好,写性能强,以及可以预料的查询 Cassandra does not support Range based row-scans which may be limiting in certain use-cases. Cassandra is well suited for supporting single-row queries, or selecting mult
cassandra——分布式扩展好,写性能强,以及可以预料的查询 Cassandra does not support Range based row-scans which may be limiting in certain use-cases. Cassandra is well suited for supporting single-row queries, or selecting multiple rows based on a Column-Value index.Cassandra supports secondary indexes...
MongoDB vs. Cassandra WhileCassandraand MongoDB are both considered NoSQL databases, they have different strengths. Cassandra uses a traditional table structure with rows and columns, which enables users to maintain uniformity and durability when formatting data before it’s compiled. ...
Best used:If you want something Cassandra-like (Dynamo-like), but no way you're gonna deal with the bloat and complexity. If you need very good single-site scalability, availability and fault-tolerance, but you're ready to pay for multi-site replication. For example:Point-of-sales data c...
In this light, here is a comparison ofCassandra,Mongodb,CouchDB,Redis,Riak,Membase,Neo4jandHBase: CouchDB Written in:Erlang Main point:DB consistency, ease of use License:Apache Protocol:HTTP/REST Bi-directional (!) replication, continuous or ad-hoc, ...
In other cases, this error can be worked-around by splitting a large request into smaller ones. Retrying a write operation that has received this error may result in a duplicate write. If you're trying to delete large amounts of data without impacting RUs: - Consider using TTL (Based on...
Examples are Memcache, MongoDB, and Cassandra, respectively. Looking at DB-Engines Ranking, we will see that the popularity of open-source databases has been growing over the years, while commercial databases have been gradually declining. What’s even more interesting, the same trend has been ...
NoSQL Databases: MongoDB vs Cassandra. In Proceedings of the International Conference on Computer Science & Software Engineering, Porto, Portugal, 10–12 July 2013. [Google Scholar] Matallah, H.; Belalem, G.; Bouamrane, K. Experimental comparative study of NoSQL databases: HBASE versus Mongo...
Wide column stores such asCassandraused to quickly aggregate large datasets, and for which columns can vary from one row to another Graph databases, like Neo4j or Titan, which use graph structures to store networks of data Document-oriented databases which store data as documents thus offering a...
MongoDB is a nice general purpose database. For building activity feeds it's not a great fit though. Cassandra and Redis will in most scenarios outperform a MongoDB based solution. Dedicated activity feed databases likeStreamare typically 10x more performant and easier to use. ...