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Percona Software for MongoDB Documentation

Percona Distribution for MongoDB 5.0.15 (2023-03-16)

Release date: March 16, 2023
Installation: Installing Percona Distribution for MongoDB

Percona Distribution for MongoDB is a freely available MongoDB database alternative, giving you a single solution that combines enterprise components from the open source community, designed and tested to work together. The aim of Percona Distribution for MongoDB is to enable you to run and operate your MongoDB efficiently with the data being consistently backed up.

Percona Distribution for MongoDB includes the following components:

  • Percona Server for MongoDB is a fully compatible source-available, drop-in replacement for MongoDB.

  • Percona Backup for MongoDB is a distributed, low-impact solution for achieving consistent backups of MongoDB sharded clusters and replica sets.

This release of Percona Distribution for MongoDB is based on Percona Server for MongoDB 5.0.15-13 and Percona Backup for MongoDB 2.0.4.

Release Highlights

Warning

Due to critical issues identified in previous releases that may affect data integrity and performance, we recommend upgrading all production environments to the latest version - currently Percona Distribution for MongoDB 5.0.15. Find details about those issues in MongoDB 5.0 Community Edition release notes.

  • The support for authentication using AWS IAM enables you to natively integrate Percona Server for MongoDB with AWS services, increase security of your infrastructure by setting up password-less authentication and offload your DBAs from managing different sets of secrets. This is the technical preview feature
  • Improved master key rotation for data at rest encrypted with HashiCorp Vault enables you to use the same secret key path on every server in your entire deployment thus significantly simplifying the secrets management and key rotation process.

The bug fixes and improvements provided by MongoDB and included in Percona Server for MongoDB 5.0.15-13 are the following:

  • Fixed the issue with blocked networking calls preventing the oplog fetching process to re-establish the connection to an unresponsive sync-source node
  • Fixed the issue with incorrect projection parsing when a collection level collation is specified
  • Changed the yielding policy of dataSize command to YIELD_AUTO for both when the command is called with estimate:true or false
  • Disallowed creating the ‘admin’, ‘local’, and ‘config’ databases with alternative cases in names on sharded clusters
  • Fixed the incorrect behavior of the mapReduce command with single reduce optimization in sharded clusters
  • Fixed a crash during startup from backup can lose metadata by not deleting checkpoints during recovery from backup
  • Fixed a memory leak in reconciliation after aborted eviction
  • Fixed mapReduce with single reduce optimization from failing in sharded clusters
  • Fixed the issue with not removing the jumbo flag upon successful split of the chunk
  • Fixed the deadlock between index build setup, prepared transaction and stepdown by unlocking and relocking Replication State Transition Lock (RSTL) during index build setup

Percona Backup for MongoDB 2.0.4 provides the ability to specify the custom path to mongod binaries to simplify the physical restore process.

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Last update: March 20, 2023
Created: March 16, 2023