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Showing entries 1 to 10 of 818 10 Older Entries

Displaying posts with tag: mariadb (reset)

ClusterControl 1.2.8 Released
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September 17, 2014 By Severalnines

The Severalnines team is pleased to announce the release of ClusterControl 1.2.8. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key new features below. 

 

Highlights of ClusterControl 1.2.8 include:

  • YUM/APT repositories for ClusterControl
  • Deployment and scaling of single-node MySQL, MariaDB and MongoDB
  • Alerts and incident tracking with PagerDuty 
  • Unified Event Viewer
  [Read more...]
Making MySQL Better More Quickly
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With the upcoming release of MySQL 5.7 I begin to see a problem which I think needs attention at least for 5.8 or whatever comes next.

  • The GA release cycle is too long, being about 2 years and that means 3 years between upgrades in a production environment
  • More people use MySQL and the data it holds becomes more important. So playing with development versions while possible becomes harder.  This is bad for Oracle as they do not get the feedback they need to adjust the development of new features and have to best guess the right choices.
  • Production DBAs do want new features and crave them if it makes our life easier, if performance improves, but we also have to live in an environment which is sufficiently stable.  This is a hard mixture of requirements to work with.
  • In larger environments the transition from one major version to another, even when
  [Read more...]
Webinar Replay & Slides: Performance Tuning of HAProxy for Database Load Balancing
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September 11, 2014 By Severalnines

 

Thanks to everyone who attended and participated in this week’s webinar on ‘Performance Tuning of HAProxy for Database Load Balancing’. And special thanks to our guest speaker, Baptiste Assmann of HAProxy Technologies. 

 

If you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

 

Watch the replay of this webinar to learn about what HAProxy can tell you about your application and database instances. And understand the difference between short-lived connections and

  [Read more...]
Puppet Module for ClusterControl - Adding Management and Monitoring to your Existing Database Clusters
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September 10, 2014 By Severalnines

If you are automating your infrastructure using Puppet, then this blog is for you. We are glad to announce the availability of a Puppet module for ClusterControl. For those using Chef, we already published Chef cookbooks for Galera Cluster and ClusterControl some time back.  

 

 

ClusterControl on Puppet Forge

 

The ClusterControl module initial release is available on Puppet Forge, installing the

  [Read more...]
Announcing Severalnines Package Repository
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September 9, 2014 By Severalnines

We are excited to announce the availability of YUM/APT repositories for ClusterControl, making new releases of ClusterControl  easily accessible using YUM or APT package managers. The repo is found at http://repo.severalnines.com, with instructions provided on the landing page. Our Cluster Configurators will be using these repositories. As a result, users upgrading from s9s_upgrade_cmon starting from version v.1.2.8 will be configured with the package repository.

  [Read more...]
Tracing down a problem, finding sloppy code
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Daniel was tracking down what appeared to be a networking problem….

  • server reported 113 (No route to host)
  • However, an strace did not reveal the networking stack ever returning that.
  • On the other side, IP packets were actually received.
  • When confronted with mysteries like this, I get suspicious – mainly of (fellow) programmers.
  • I suggested a grep through the source code, which revealed  return -EHOSTUNREACH;
  • Mystery solved, which allowed us to find what was actually going on.

Lessons:

  • Don’t just believe or presume the supposed origin of an error.
  • Programmers often take shortcuts that cause grief later. I fully appreciate how the above code came about, but I still think it was wrong. Mapping a
  •   [Read more...]
    MariaDB Galera Cluster 10.0.13 now available
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    Download MariaDB Galera Cluster 10.0.13

    Release Notes Changelog What is MariaDB Galera Cluster?

    MariaDB APT and YUM Repository Configuration Generator

    The MariaDB project is pleased to announce the immediate availability of MariaDB Galera Cluster 10.0.13. This is a Stable (GA) release.

    See the

      [Read more...]
    How to change AWS instance sizes for your Galera Cluster and optimize performance
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    September 3, 2014 By Severalnines

    Running your database cluster on AWS is a great way to adapt to changing workloads by adding/removing instances, or by scaling up/down each instance. At Severalnines, we talk much more about scale-out than scale up, but there are cases where you might want to scale up an instance instead of scaling out. 

    In this post, we’ll show you how to change instance sizes with respect to RAM, CPU and IOPS, and how to tune your Galera nodes accordingly. Moreover, this post assumes that instances are launched using Amazon VPC.

     

    When  [Read more...]

    Moving On
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    I have a difficult task of making this post interesting, helpful and personal at the same time. I think the main goal is to balance these aspects, and I really appreciate your comments and suggestions that I will add here.For the busy readers who may be put off by the length of this post, here is a very short summary: I spent 4 wonderful years, first as the head of Field Services, then as a CTO, I believe it is now time for a change, so I am leaving SkySQL. I am leaving behind a great company and very good friends, but I am not disappearing completely, and I will continue supporting the work I started and the projects I created with the help of such great people.For many, leaving a company is not easy, and it is extremely difficult if you have contributed to its creation and development since the beginning. Even more difficult is to depart  [Read more...]
    How to Manage All Your MySQL or MariaDB Databases
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    September 1, 2014 By Severalnines

    According to Forrester, a DBA in a large enterprise manages between 8 and 275 databases, with the industry average being 40 databases to a DBA. Larger databases usually require extra effort around tuning, backup, recovery and upgrade. Cloud, as well as automation and management tools can help improve the number of databases managed by one DBA.  

     

    With that background, we were pretty excited to introduce support for management of single-instance MySQL and MariaDB databases in

      [Read more...]
    Showing entries 1 to 10 of 818 10 Older Entries

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