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Displaying posts with tag: mysql (reset)

How to stop offending queries with ProxySQL
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This blog discusses how to find and address badly written queries using ProxySQL.

All of us are very good in writing good queries. We know this to always be true!

But sometimes a bad query escapes our control and hits our database. There is the new guy, the probie, who just joined the company and is writing all his code using SELECT * instead of WHERE. We’ve told him “STOP” millions of times, but he refuses to listen. Or a there is a new code injection, and it will take developers some time to fix and isolate the part of the code that is sending killing queries to our database.

The above are true stories; …

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Percona Server 5.7.14-7 is now available
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Percona announces the GA release of Percona Server 5.7.14-7 on August 23, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on MySQL 5.7.14, including all the …

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ConFoo Montreal 2017 Calling for Papers
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ConFoo Montreal: March 8th-10th 2016

Want to get your web development ideas in front of a live audience? The call for papers for the ConFoo Montreal 2017 web developer conference is open! If you have a burning desire to hold forth about PHP, Java, Ruby, Python, or any other web development topics, we want to see your proposals. The window is open only from August 21 to September 20, 2016, so hurry. An added benefit: If your proposal is selected and you live outside of the Montreal area, …

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Web-scale MySQL back in the day
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I spent a few years at Facebook where I was extremely busy helping to make MySQL better at web-scale. I worked a lot with Domas. He found so many problems and I helped fix them along with a few others (the MySQL db-eng team was small). Domas made it easy to understand what was broken and there was a lot of low-hanging fruit. This slide deck is one perspective on what we did. I doubt I have the energy to go through another few years like that, but it was a great time. The timing was also right as there were many people at Oracle/MySQL pushing to make MySQL scale on modern hardware.

Percona Server 5.6.32-78.0 is now available
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Percona announces the release of Percona Server 5.6.32-78.0 on August 22nd, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on …

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Query rewrite plugin: scalability fix in MySQL 5.7.14
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In this post, we’ll look at a scalability fix for issues the query rewrite plugin had on performance.

Several months ago, Vadim blogged about the impact of a query rewrite plugin on performance. We decided to re-evaluate the latest release of 5.7(5.7.14), which includes fixes for this issue.

I reran tests for MySQL 5.7.13 and 5.7.14 using the same setup and the same test: sysbench OLTP_RO without and with the query rewrite plugin …

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MySQL Connector/NET 7.0.4 m3 has been released
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Dear MySQL users,

MySQL Connector/Net 7.0.4 is the first development release that expands cross-platform support to Linux and OS X when using Microsoft’s .NET Core framework. Now, .NET developers can use the X DevAPI with .NET Core and Entity Framework Core (EF Core) 1.0 to create server applications that run on Windows, Linux and OS X. We are very excited about this change and really look forward to your feedback on it!

MySQL Connector/Net 7.0.4 is also the third development release of MySQL Connector/Net to add support for the new X DevAPI. The X DevAPI enables application developers to write code that …

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MySQL Group Replication as HA solution
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MySQL Group Replication is just one component of the upcoming MySQL HA Solution as Matt Lord explained it in his GR quick start guide. So while mysql-router is back to school to become smarter and learn how to take the right decision we can already use existing 3rd party solutions. To be honest, if people are already using a load balancer/proxy with MySQL asynchronous, semi-sync or other virtual synchronous solution and want to evaluate and migrate to MySQL’s native Group Replication, they might not migrate load balancer at the same time as they move to GR. …

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A discussion about sync-master-info and other replication parameters
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Some time ago, feedback was requested on new replication default after MySQL 5.7.  Some of the suggested default are:

relay-log-info-repository = TABLE (previous default FILE) relay-log-recovery = ON (previous default OFF) master-info-repository = TABLE (previous default FILE) sync-master-info = 1,000 (previous default 10,000) sync-relay-log = 1,000 (previous default 10,000)

I agree on the

Network Traffic Analyzer with RaspberryPI
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Motivation Melbourne just won the “most liveable city 2016”, the 5th time in a row. That’s awesome, but it comes with a price, and the one you’d think of: internet here sucks! Sounds weird, isn’t it? Well, one of the reasons Melbourne is such a great city, is it’s size, the amount of people in [...]

Showing entries 1 to 10 of 18015 10 Older Entries

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