This documentation is for the end of life version of Percona Server for MongoDB and is no longer supported. You may want to see the current documentation.

Percona Server for MongoDB 4.0.28-23

Date

February 23, 2022

Installation

Installing Percona Server for MongoDB

Percona Server for MongoDB 4.0.28 is an enhanced, source available, and highly-scalable database that is a fully-compatible, drop-in replacement for MongoDB 4.0.28 Community Edition. It supports MongoDB 4.0.28 protocols and drivers.

Reminder

MongoDB 4.0 is scheduled to go End of Life on April 30, 2022. Please plan your upgrades accordingly. To learn more about Percona’s software and services life cycle policies, see Percona Release Lifecycle Overview and Percona Services Lifecycle Policy.

Release Highlights

• SERVER-59929 - Fixed issue from versions 4.0.26 and below that caused slower update and insert times related to splitChunk and moveChunk operations.

• SERVER-55648 - Resolved issues related to failures in retryable writes in case of shutdowns.

• SERVER-62065 - Added the repairShardedCollectionChunksHistory command to restore history fields for some chunks. This aims to fix broken snapshot reads and distributed transactions.

• SERVER-54064 - Added periodic clean up of logical sessions cache on arbiters

• SERVER-45953 - Exempted internal replication oplog readers from acquiring read tickets in order to avoid deadlocks

Find the full list of changes in the MongoDB 4.0.28 Community Edition release notes.