|Date:||April 24, 2018|
|Installation:||Installing Percona Server for MongoDB|
Percona Server for MongoDB is an enhanced, open source, and highly-scalable database that is a fully-compatible, drop-in replacement for MongoDB 3.6 Community Edition. It supports MongoDB 3.6 protocols and drivers.
Percona Server for MongoDB extends Community Edition functionality by including the Percona Memory Engine storage engine, as well as several enterprise-grade features. Percona Server for MongoDB requires no changes to MongoDB applications or code.
This release is based on MongoDB 3.6.3 and provides the following additional changes:
MongoRocks is deprecated in Percona Server for MongoDB 3.6 and it will be fully removed in the next major version of Percona Server for MongoDB. Feature compatibility version is set to 3.4 when using Percona Server for MongoDB 3.6 with MongoRocks, so 3.6 features, such as retryable writes and causal consistency, cannot be used. Additionally, read concern majority may produce unreliable results.
#PSMDB-191: Fixed a bug in MongoRocks engine initialization
code which caused wrong initialization of
_maxPrefix value. This could
lead to reuse of dropped prefix and to accidental removal of data from the
collection using reused prefix.
In some specific conditions data records could disappear at arbitrary moment of time from the collections or indexes created after server restart.
#PSMDB-178: RocksSnapshotManager was reworked to match the new model of interaction between MongoDB and storage engine’s snapshot manager.
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