Prior to MySQL 5.7, the CREATE USER command had a number of limitations:

• No way to set both authentication plugin and password
• No way to disable a user
• No way to define user resource limitations
• No way to set a non-default password expiration policy
• No way to require SSL/x509

All of these things could be done through other means, but typically involved other statements, such as GRANT commands. Starting with MySQL 5.7.6, these can all be done through a new and improved CREATE USER …

Compiling MySQL Workbench yourself is quite a common task for Linux users, even though the application is available precompiled for certain platforms ready from our download page and available in our yum and apt repositories. In this blog post we show you how to compile it on Windows.

Introduction

Doing a build on Windows is a totally different matter and most users never need to do that. It’s mostly intersting for those wanting own functionality or just being curious. But you should be an experienced Visual Studio user. It’s a complicated task and not a good start for a beginner. The key problem when building on Windows is that we cannot ship any 3rd party library we used. Instead you have to collect them all yourself. In order to ease that task we created the list below. Each library comes with a version number which usually specifies the minimum version to be used. Most of the time it’s not mandatory to use the exact …

UMASK and UMASK_DIR are amongst few MySQL Environment variables which defines directory and file creation modes (file permissions). In this post we will understand using UMASK & UMASK_DIR for changing the database directory and file permissions from it's default to what we need.

The post UMASK & UMASK_DIR – changing default MySQL file dir permissions first appeared on Change Is Inevitable.

#DBHangOps 06/25/15 -- Even More Automation!

Hello everybody!

Join in #DBHangOps this Thursday, June, 25, 2015 at 11:00am pacific (19:00 GMT), to participate in the discussion about:

• What's the last script you wrote? Why?
• What's the last tool you wrote? Why?
• What's your most valuable or most used tool/script that you've developed?
• What's the first script/tool you get or build at a new job?

You can check out the event page at https://plus.google.com/events/c47c6h7c1jgl3ifptev1pnmrf5s on Thursday to participate.

As always, you can still watch the #DBHangOps twitter search, the @DBHangOps twitter feed, or this …

A question I often hear when customers want to set up a production PXC cluster is: “How many nodes should we use?”

Three nodes is the most common deployment, but when are more nodes needed? They also ask: “Do we always need to use an even number of nodes?”

This is what we’ll clarify in this post.

This is all about quorum

I explained in a previous post that a quorum vote is held each time one node becomes unreachable. With this vote, the remaining nodes will estimate whether it is safe to keep on serving queries. If quorum is not reached, all remaining nodes will set themselves in a state where they cannot process any query (even reads).

To get the right size for you cluster, the only question you should answer is: how many nodes can simultaneously fail while leaving the …

The consumerization of IT and the integration of BYOD throughout the enterprise in recent years has made the customer king. And this means the end-user experience has become critical. The latest figures show that if your site doesn’t do a full page load in 3 seconds or less, then your customers will leave and abandon you and head over to your competitors site to spend their money there. Customers simply have no patience for slow, erratic, or downed websites. And this is why keeping your business-critical applications running optimally and efficiently is crucial for the success of your organization. Without this you might as well close up shop.

Application performance monitoring is the key to ensuring that the …

VividCortex is sponsoring and exhibiting at O’Reilly’s OSCON in Portland, Oregon this year. We will be at booth 429, serving up hats and database monitoring demos.

Click here for more details and registration.

The Log Buffer Edition once again is sparkling with some gems, hand-picked from Oracle, SQL Server and MySQL.

Oracle:

• Oracle GoldenGate 12.1.2.1.1  is now certified with Unity 14.10.  With this certification, customers can use Oracle GoldenGate to deliver data to Teradata Unity which can then automate the distribution of data to multiple Teradata databases.
• How do I change DNS servers on Exadata storage servers.
• Flushing Shared Pool Does Not Slow Its Growth.
• …

Taxonomy upgrade extras: jobDBAsupportWer sind wir?

FromDual ist das führende unabhängige Beratungs- und Dienstleistungsunternehmen für MySQL, Galera Cluster, MariaDB und Percona Server in Europa mit Hauptsitz in der Schweiz.

Unsere Kunden stammen hauptsächlich aus Europa und reichen vom kleinen Start-Up bis zur europäischen Top-500 Firma. Sie erhalten von uns Support bei Datenbank-Problemen, direkte Eingriffe als remote-DBA, Schulung für ihre DBAs und Entwickler sowie Beratung bei Architektur- und Design-Entscheidungen. Ausserdem entwickeln wir Tools rund um MySQL, schreiben Blog-Artikel und halten Vorträge bei Konferenzen.

Da unsere …

Recently want to install Percona XtraDB Cluster + HAProxy + KeepAlived on CentOS 7, but could not find any all-in-one guide. So decided to write down all steps necessary for getting started and running HA solution using Open Source projects. Nowadays high availability is one of the main concerns faced by big and small companies.Minimum wasting of time (downtime per year), sustainably working of infrastructure and etc. is the main mission for all companies that they are trying to achieve.There are different approaches to this mission. One of them as large companies did, to buy expensive software and support from vendors. But small companies could not go through these steps. The true power of Open Source comes up at these moments.You can build your own High Availability solution using free but yet powerful Open Source projects. In this article we will show you how to achieve Database Clustering and Load Balancing. We will use:

1. …