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From MongoDB to Cassandra: Why Atlas Platform Is Migrating

Sergio Bossa tells the story of migrating the Atlas platform from using MongoDB to Cassandra emphasizing the reasons behind their decision:

  • It works on the JVM, and we have lots of in-house experience on it.
  • It scales in terms of processing and storage capacity.
  • Its column-based data model gives us some advanced capabilities we will talk about in a few minutes.
  • Its tunable consistency levels provide greater control over high availability and consistency requirements.

As regards what made them look into a different solution:

  • We need higher resiliency to faults: MongoDB provides replica sets, but we’re experiencing lots of problems with replication lags and during replica synchronization.
  • We need higher scalability: MongoDB global lock and huge memory requirements aren’t already going to cope well with our growing data set.

Original title and link: From MongoDB to Cassandra: Why Atlas Platform Is Migrating (NoSQL database©myNoSQL)

via: http://metabroadcast.com/blog/looking-with-cassandra-into-the-future-of-atlas