Percona Server for MongoDB is based on MongoDB 3.0, and it is the successor to Percona TokuMX, which is based on MongoDB 2.4. The tables in this section will help you evaluate the differences.
One of the biggest features introduced by MongoDB 3.0 and available in Percona Server for MongoDB is the pluggable storage engine API. This enables you to select from a variety of storage engines depending on your needs. Previous MongoDB versions (before 3.0) and Percona TokuMX can run with only one default storage engine.
The following table shows which storage engines are available.
|PSMDB||MongoDB 3.0||TokuMX ||MongoDB 2.4|
|||TokuMX uses a proprietary storage engine similar to PerconaFT|
|||MongoRocks engine is currently considered experimental|
The table below provides a comparison of important features to help you evaluate the differences.
It is assumed that you run Percona Server for MongoDB with the PerconaFT storage engine, and it is compared against MongoDB community edition running with MMAPv1. There are footnotes for cases when a feature depends on the storage engine or it is available only in the commercial enterprise edition of MongoDB.
|PSMDB||MongoDB 3.0||TokuMX||MongoDB 2.4|
|Hot Backup||YES ||NO||YES||NO|
|Audit Logging||YES||NO ||YES||NO|
|External SASL Authentication||YES||NO ||NO||NO|
|ACID and MVCC compliant||NO||NO||YES||NO|
|Clustering Key Support||NO||NO||YES||NO|
|Sharding with Clustering Keys||NO||NO||YES||NO|
|Point-in-time Recovery||NO||NO ||YES||NO |
|||You can use TokuBackup when running under PerconaFT or use hot backup functionality available in the MongoRocks storage engine|
|||(1, 2, 3, 4) Available in MongoDB Enterprise Edition|
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