Ken W. Alger blog post aiming at clearing up the conversations about MongoDB performance. Often information against MongoDB is based on outdated data and older versions of MongoDB. Clearly, in the past there were some issues with data scalability and data concurrency in those earlier versions. In fact, Jepsen has done extensive tests on MongoDB on lost updates and dirty and stale reads.
The new versions of MongoDB address the results of these tests.
MongoDB 3.4.1 (and the current development release, 3.5.1) currently pass all MongoDB Jepsen tests….These results hold during general network partitions, and the isolated & clock-skewed primary scenario.
Beyond data security, customers are finding huge benefits in performance in the more current releases of MongoDB. Improvements to, or the introduction of, technologies such as replication compression, the WiredTiger storage engine, in memory cache, and performance enhancements to sharding and replica sets have been a win for users.
You can read more about his conclusions in his published results. You will also find some charts and case studies accompanying this article.
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