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10 Newer Entries Showing entries 31 to 40 of 843 10 Older Entries

Displaying posts with tag: mariadb (reset)

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...]
    Resources for Database Clusters: Performance Tuning for HAProxy, Support for MariaDB 10, Technical Blogs & More
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    August 28, 2014 By Severalnines

    Check Out Our Latest Resources for MySQL, MariaDB & MongoDB Clusters

     

    Here is a summary of resources & tools that we’ve made available to you in the past weeks. If you have any questions on these, feel free to contact us!

     

    New Technical Webinars

     

      [Read more...]
    9 Tips for Going in Production with Galera Cluster for MySQL
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    August 25, 2014 By Severalnines

    Are you going in production with Galera Cluster for MySQL? Here are 9 tips to consider before going live. These are applicable to all 3 Galera versions (Codership, Percona XtraDB Cluster and MariaDB Galera Cluster). 

     

    1. Galera strengths and weaknesses

     

    There are multiple types of replication and cluster technologies for MySQL, make sure you understand how Galera works so you set the right expectations.

      [Read more...]
    MariaDB Galera Cluster 5.5.39 now available
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    Download MariaDB Galera Cluster 5.5.39

    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 5.5.39. This is a Stable (GA) release.

    See the

      [Read more...]
    Automation & Management of MariaDB Galera Clusters: New European Webinars with SkySQL - The MariaDB Company
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    August 21, 2014 By Severalnines

    MariaDB Galera Cluster involves more effort and resource to administer than standalone MariaDB systems. If you would like to learn how to better manage your MariaDB cluster, then this webinar series is for you. 

     

    We will give you practical advice on how to introduce clusters into your MariaDB / MySQL  environment, automate deployment and make it easier for operational staff to manage and monitor the cluster using ClusterControl.

     

    Language, Date & Time: 

     

    English - Tuesday, September 30th @ 11am CEST:

      [Read more...]
    How to Install ClusterControl on Servers without Internet Access
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    August 18, 2014 By Severalnines

    There are several ways to get ClusterControl installed on your database infrastructure, as described in the ClusterControl Quick Start Guide. One simple way is to use an installation script, install-cc.sh. This script automates the whole process, and is executed on the host where you want to install ClusterControl. By default, it assumes the host has internet connectivity during the installation process.

     

    For users who are not able to have their

      [Read more...]
    10 Newer Entries Showing entries 31 to 40 of 843 10 Older Entries

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