Percona Server for MySQL 5.7.25-28 Is Now Available

Percona Server for MySQL 8.0

Percona is glad to announce the release of Percona Server 5.7.25-28 on February 18, 2019. Downloads are available here and from the Percona Software Repositories.
This release is based on MySQL 5.7.25 and includes all the bug fixes in it. Percona Server 5.7.25-28 is now the current GA (Generally Available) release in the 5.7 series.
All software developed by Percona is open-source and free.
In this […]

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Percona Server for MongoDB 4.0.5-2 Is Now Available

Percona Server for MongoDB

Percona announces the release of Percona Server for MongoDB 4.0.5-2 on February 18, 2019. Download the latest version from the Percona website or the Percona Software Repositories.
Percona Server for MongoDB is an enhanced, open source, and highly-scalable database that is a fully-compatible, drop-in replacement for MongoDB 4.0 Community Edition. It supports MongoDB 4.0 protocols and drivers.
Percona Server for MongoDB extends Community Edition […]

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Deprecation of TLSv1.0 2019-02-28

end of Percona support for TLS1.0

Ahead of the PCI move to deprecate the use of ‘early TLS’, we’ve previously taken steps to disable TLSv1.0.
Unfortunately at that time we encountered some issues which led us to rollback these changes. This was to allow users of operating systems that did not – yet – support TLSv1.1 or higher to download Percona packages over […]

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ClickHouse Performance Uint32 vs Uint64 vs Float32 vs Float64

Q1 least compression

While implementing ClickHouse for query executions statistics storage in Percona Monitoring and Management (PMM),  we were faced with a question of choosing the data type for metrics we store. It came down to this question: what is the difference in performance and space usage between Uint32, Uint64, Float32, and Float64 column types?
To test this, […]

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FOSDEM 2019 – Percona Presentations

FOSDEM Paintings

For those not familiar with it, FOSDEM is an amazing, free entry, full on celebration of open source that takes place in Brussels, Belgium every year. This year the event was held over the first weekend of February. Fringe events, such as the Pre-FOSDEM MySQL day hosted by Oracle MySQL, and the community dinner that […]

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plprofiler – Getting a Handy Tool for Profiling Your PL/pgSQL Code

plprofiler postgres performance tool

PostgreSQL is emerging as the standard destination for database migrations from proprietary databases. As a consequence, there is an increase in demand for database side code migration and associated performance troubleshooting. One might be able to trace the latency to a plsql function, but explaining what happens within a function could be a difficult […]

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Debugging MariaDB Galera Cluster SST Problems – A Tale of a Funny Experience

MariaDB galera cluster starting time

Recently, I had to work on an emergency for a customer who was having a problem restarting a MariaDB Galera Cluster. After a failure in the cluster they decided to restart the cluster entirely following the right path: bootstrapping the first node, and then adding the rest of the members, one by one. Everything […]

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Compression Options in MySQL (Part 2)

Swiss cheese File system

In one of my previous posts, I started a series on data compression options with MySQL. The first post focused on the more traditional compression options like InnoDB Barracuda page compression and MyISAM packing. With this second part, I’ll discuss a newer compression option, InnoDB transparent page compression with punch holes available since 5.7. […]

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ProxySQL 1.4.14 and Updated proxysql-admin Tool

ProxySQL 1.4.14

ProxySQL 1.4.14, released by ProxySQL, is now available for download in the Percona Repository along with an updated version of Percona’s proxysql-admin tool.
ProxySQL is a high-performance proxy, currently for MySQL,  and database servers in the MySQL ecosystem (like Percona Server for MySQL and MariaDB). It acts as an intermediary for client requests seeking resources from the […]

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