EmergencyEMERGENCY? Get 24/7 Help Now!

This Week in Data with Colin Charles #7: Percona Live Europe and Open Source Summit North America

 | September 22, 2017 |  Posted In: Business Continuity, Events and Announcements, Insight for DBAs, Insight for Developers, MongoDB, MySQL, Percona Live

Colin Charles

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. Percona Live Europe Dublin Are you affected by the Ryanair flight cancellations? Have you made alternative arrangements? Have you registered for the community dinner? Even speakers have to register, so this is a separate ticket cost! […]

Read More

sysbench Histograms: A Helpful Feature Often Overlooked

 | September 20, 2017 |  Posted In: Database Monitoring, Insight for DBAs, MySQL

Sysbench Histograms

In this blog post, I will demonstrate how to run and use sysbench histograms. One of the features of sysbench that I often I see overlooked (and rarely used) is its ability to produce detailed query response time histograms in addition to computing percentile numbers. Looking at histograms together with throughput or latency over time […]

Read More

Percona Live Europe Featured Talks: Automatic Database Management System Tuning Through Large-Scale Machine Learning with Dana Van Aken

 | September 19, 2017 |  Posted In: Database Monitoring, Insight for DBAs, MongoDB, MySQL, Percona Live

Percona Live Europe 2017

Welcome to another post in our series of interview blogs for the upcoming Percona Live Europe 2017 in Dublin. This series highlights a number of talks that will be at the conference and gives a short preview of what attendees can expect to learn from the presenter. This blog post is with Dana Van Aken, […]

Read More

Percona Live Europe Featured Talks: Debugging with Logs (and Other Events) Featuring Charity Majors

 | September 18, 2017 |  Posted In: Database Monitoring, Insight for DBAs, MongoDB, MySQL, Percona Live

Percona Live Europe 2017

Welcome to another post in our series of interview blogs for the upcoming Percona Live Europe 2017 in Dublin. This series highlights a number of talks that will be at the conference and gives a short preview of what attendees can expect to learn from the presenter. This blog post is with Charity Majors, CEO/Cofounder […]

Read More

This Week in Data with Colin Charles #6: Open Source Summit and Percona Live Europe

 | September 15, 2017 |  Posted In: Events and Announcements, Insight for DBAs, Insight for Developers, Percona Live, Percona Server for MongoDB, Percona Server for MySQL

Colin Charles

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. What a long, packed week! Spent most of it at Open Source Summit North America, while still enjoying the myriad phone calls and meetings you have as a Perconian. In addition to two talks, I […]

Read More

Massive Parallel Log Processing with ClickHouse

 | September 13, 2017 |  Posted In: Database Monitoring, Insight for DBAs, MySQL, Yandex ClickHouse

ClickHouse

In this blog, I’ll look at how to use ClickHouse for parallel log processing. Percona is seen primarily for our expertise in MySQL and MongoDB (at this time), but neither is quite suitable to perform heavy analytical workloads. There is a need to analyze data sets, and a very popular task is crunching log files. Below […]

Read More

cscope: Searching Code Efficiently

 | September 12, 2017 |  Posted In: Insight for DBAs, MariaDB, MySQL

cscope

In this post, we will discuss how to search code with the help of cscope. Let’s begin by checking its description and capabilities (quoting directly from http://cscope.sourceforge.net/): Cscope is a developer’s tool for browsing source code. Allows searching code for: all references to a symbol global definitions functions called by a function functions calling a […]

Read More

Upcoming Webinar September 14, 2017: Supercharge Your Analytics with ClickHouse

 | September 12, 2017 |  Posted In: Database Monitoring, Insight for DBAs, Insight for Developers, MySQL, Technical Webinars, Yandex ClickHouse

ClickHouse

Join Percona’s CTO Vadim Tkachenko @VadimTk and Altinity’s Co-Founder, Alexander Zaitsev as they present Supercharge Your Analytics with ClickHouse on Thursday, September 14, 2017, at 10:00 am PDT / 1:00 pm EDT (UTC-7). Reserve Your Spot   ClickHouse is a real-time analytical database system. Even though they’re only celebrating one year as open source software, it has […]

Read More

Updating InnoDB Table Statistics Manually

 | September 11, 2017 |  Posted In: Database Monitoring, InnoDB, Insight for DBAs, Insight for Developers, MySQL

InnoDB Tables

In this post, we will discuss how to fix cardinality for InnoDB tables manually. As a support engineer, I often see situations when the cardinality of a table is not correct. When InnoDB calculates the cardinality of an index, it does not scan the full table by default. Instead it looks at random pages, as determined […]

Read More

This Week in Data with Colin Charles #5: db tech showcase and Percona Live Europe

 | September 8, 2017 |  Posted In: Insight for DBAs, Insight for Developers, MongoDB, MyRocks, MySQL, Percona Live

Colin Charles

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community. Percona Live Europe 2017 in Dublin Have you registered for Percona Live Europe Dublin? We have announced some awesome keynotes, and our sponsor list is growing (and we’re always looking for more!). There will also be […]

Read More