Strategies for maintaining CI/CD pipelines

Pythian specializes in continuous integration and deployment (CI/CD) pipelines for enterprise applications. Our customers call us when they are ready to decompose their monolithic codebases and we help them implement containerized microservices and speed up deployment. When we take on…

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Using Kerberos Configuration Manager to resolve Microsoft SQL Server SPN issues

It’s not uncommon to have authentication issues with Microsoft SQL Server. Not only with users trying to access the server, but problems related to the connection between instances, like AlwaysOn Availability Groups. The traditional way to solve it is well…

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MySQL 5.7 Multi-threads replication operation tips

With support of multi-threads replication starting from MySQL 5.7, the operations on slave are slightly different from single-thread replication. Here is a list of some operation tips for the convenience of use as below: 1. Skip a statement for a…

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Log Buffer #539: A Carnival of the Vanities for DBAs

This Log Buffer covers Cloud, Oracle, and PostgreSQL.

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Increasing functional testing velocity with pt-query-digest

Whenever we do upgrades for our clients from one major version of MySQL to another we strongly recommend to test in two forms. First, it would be a performance test between the old version and the new version to make…

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Datascape Podcast Episode 22 – Moving 10,000 servers to the public cloud

Today’s guest is Pierig Le Saux, an expert in Service Reliability Engineering and Systems Administration, providing architectural guidance on complex issues and leading technical projects here at Pythian. Pierig joins us to talk to us about his experience in a…

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Systemd Timers as a Replacement for Cron

Cron is not standard! Most distributions treat cron as if it were a standard, but almost no two distributions actually use the same cron daemon. Debian uses Dillon’s Cron which places an emphasis on being lightweight. CentOS uses Vixie Cron…

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How to Enable Binary Logging on an Amazon RDS Read Replica

One of the more common struggles I’ve had to assist with in regard to Amazon RDS is enabling binary logging on read replicas, or forming multi-tier replication in instances using version 5.6 or later after seeing that multi-tier replication is…

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Cloudscape Podcast – Episode 1: Cloud Vendor News and Updates for January 2018

Welcome to the first episode of the Cloudscape Podcast. In this series we will be looking at the most current developments in the public cloud sphere and bringing you all the information from an array of industry experts. On today’s…

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Understanding the Java Virtual Machine (JVM) Architecture Part 1

What is garbage collection? Garbage collection (GC) is a form of automatic memory management. In essence what the garbage collection does is to attempt to reclaim garbage, ergo memory occupied by objects that are no longer relevant for the active…

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