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Showing entries 1 to 30 of 70 Next 30 Older Entries

Displaying posts with tag: Other (reset)

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

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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

 

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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.

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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:

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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

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New Webinar: Performance Tuning of HAProxy for Database Load Balancing
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August 13, 2014 By Severalnines

 

New Webinar: Performance Tuning of HAProxy for Database Load Balancing

As a follow-up to our previous webinar on MySQL Load Balancing and HAProxy, we are glad to organize a new webinar on Performance Tuning of HAProxy. Tuning your HAProxy instances can significantly increase the performance of your application and decrease response times. Joint us for this special session to find out more!   [Read more...]
Clustering Moodle on Multiple Servers for High Availability and Scalability
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August 12, 2014 By Severalnines

Moodle is an open-source e-learning platform (aka Learning Management System) that is widely adopted by educational institutions to create and administer online courses. For larger student bodies and higher volumes of instruction, moodle must be robust enough to serve thousands of learners, administrators, content builders and instructors simultaneously. Availability and scalability are key requirements as moodle becomes a critical application for course providers. In this blog, we will show you how to deploy and cluster moodle/web, database and file-system components on multiple servers to achieve both high availability and scalability. 

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How-to and Performance Impact of SSL-Encrypted Replication Traffic in Galera Cluster for MySQL
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August 7, 2014 By Severalnines

 

Deploying Galera Clusters across WAN environments might lead to concerns around data privacy and security - especially as more organisations are having to comply with national and international regulations. You would not want hackers eavesdropping or intercepting replication traffic. Encrypted replication hides what is sent between the Galera nodes, and makes sure each node is only communicating to the ones it trusts. But how expensive is encryption?

 

In this blog, we will show you how to encrypt the replication traffic between your Galera nodes. We will also look into the performance impact of this

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We’d love to go to Paris for the OpenStack Summit - please vote for our talks!
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August 6, 2014 By Severalnines

 

Well over a thousand sessions have been submitted for the OpenStack Summit and two of them includes our good selves! We’ve submitted two talks with partners of ours: 

 

… and would love it if the talks were included in the final agenda. For that to happen, we need a few

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How to Configure ClusterControl to run on nginx
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July 10, 2014 By Severalnines

ClusterControl uses the Apache HTTP Server to serve its web interface, but it is also possible to use nginx. nginx + PHP fastcgi is well-known for its capabilities to run on a small memory footprint compared to standard Apache + PHP DSO.

 

In this post, we will show you how to run ClusterControl on nginx web server by swapping out the default Apache web server installed during the initial deployment. This blog post does not mean that we officially support nginx, it just an alternative way that a portion of our users have been interested in. For instance, Phil Bayfield

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ClusterControl Module for Puppet
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July 7, 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

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New Webinar on July 9th: How To Set Up SQL Load Balancing with HAProxy
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June 17, 2014 By Severalnines

 

We continuously see great interest in MySQL load balancing and HAProxy, so we thought it was about time we organised a live webinar on the topic!

 

As most of your will know, database clusters and load balancing go hand in hand. 

 

Once your data is distributed and replicated across multiple database nodes, a load balancing mechanism helps distribute database requests, and gives applications a single database endpoint to connect to. 

 

Instance failures or

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Big Data Integration & ETL - Moving Live Clickstream Data from MongoDB to Hadoop for Analytics
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June 16, 2014 By Severalnines

MongoDB is great at storing clickstream data, but using it to analyze millions of documents can be challenging. Hadoop provides a way of processing and analyzing data at large scale. Since it is a parallel system, workloads can be split on multiple nodes and computations on large datasets can be done in relatively short timeframes. MongoDB data can be moved into Hadoop using ETL tools like Talend or Pentaho Data Integration (Kettle).

 

In this blog, we’ll show you how to integrate your MongoDB and Hadoop datastores using Talend. We have a MongoDB database collecting clickstream data from several websites. We’ll create a job in Talend to extract the documents from MongoDB, transform and then

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Join Us at the European MariaDB Roadshow this Summer!
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June 12, 2014 By Severalnines

We’re delighted to be joining Team MariaDB at SkySQL with a talk on ‘Automation & Management of Database Clusters’ as they tour across several European regions in the coming weeks.

 

Whether you’re a MariaDB enthusiast or newbie, a MySQL veteran or newbie, or even a MongoDB user who also happens to run MySQL or MariaDB databases: this roadshow is a good place to find out about the latest developments on the MariaDB database as well as related tools and technologies. 

 

From our own perspective, we’ll be updating participants on how to

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How to Deploy Percona XtraDB Cluster without Internet Connection
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May 23, 2014 By Severalnines

If you need to deploy a database cluster behind your corporate firewall, on servers with no internet access, then this blog is for you. Most of the installation tutorials out there require servers to have an internet connection, and that would not work very well with companies under strict policies and compliance guidelines. 


Our online Galera Configurator supports deployment without Internet connection for Percona XtraDB Cluster. You would need to prepare a minimum of four hosts (three DB nodes and one management node), generate a Deployment

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Archival and Analytics - Importing MySQL data into Hadoop Cluster using Sqoop
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May 16, 2014 By Severalnines

We won’t bore you with buzzwords like volume, velocity and variety. This post is for MySQL users who want to get their hands dirty with Hadoop, so roll up your sleeves and prepare for work. Why would you ever want to move MySQL data into Hadoop? One good reason is archival and analytics. You might not want to delete old data, but rather move it into Hadoop and make it available for further analysis at a later stage. 

 

In this post, we are going to deploy a Hadoop Cluster and export data in bulk from a Galera Cluster using Apache Sqoop. Sqoop is a well-proven approach for bulk data loading from a relational

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New Release Webinar on May 13th: Introducing ClusterControl 1.2.6 - Live Demo
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May 7, 2014 By Severalnines

 

Following the release of ClusterControl 1.2.6 a couple of weeks ago, we are now looking forward to demonstrating this latest version of the product on Tuesday next week, May 13th.

 

This release contains key new features (along with performance improvements and bug fixes), which we will be demonstrating live during the webinar. 

 

Highlights include:

  • Centralized
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How to Setup Centralized Authentication of ClusterControl Users with LDAP
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April 24, 2014 By Severalnines

ClusterControl 1.2.6 introduces integration with Active Directory and LDAP authentication. This allows users to log into ClusterControl by using their corporate credentials instead of a separate password. LDAP groups can be mapped onto ClusterControl user groups to apply roles to the entire group, so it is very convenient for larger organizations who have a centralized LDAP-compliant authentication system. This blog shows you how to configure LDAP authentication in ClusterControl, and allow users to use their Active Directory or LDAP username and password to log in to ClusterControl. 

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Heartbleed OpenSSL Bug: Impact on ClusterControl Users & Recommendations on How to Protect your Systems
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April 10, 2014 By Severalnines

 

In the wake of recent concerns and debates raised around the Heartbleed bug, we wanted to update Severalnines ClusterControl users on any impact this bug might have on ClusterControl & associated databases and/or applications.

 

Background

 

If your ClusterControl's web application has been accessible on the internet, then most likely you have also been exposed to the Heartbleed OpenSSL security bug, see: http://heartbleed.com for more details. 

By default, our database deployment script enables SSL encryption for the

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9 Reasons For Attending The Percona Live MySQL Conference & Expo 2014
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March 28, 2014 By Severalnines

 

Percona Live MySQL Conference & Expo - March 31st to April 4th

The Severalnines Team Will Be Onsite at Booth 418 - Come Say Hello!

 

 

If you’re still thinking about whether or not you should be attending the Percona Live MySQL Conference & Expo that starts on Monday 31st of March, here are 9 reasons (we are Severalnines after all) on why we’ll be there. May these help you positively in

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How to Migrate Your Application to Amazon Virtual Private Cloud without Downtime
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March 27, 2014 By Severalnines

With datacenters being stretched by resource-intensive applications, more and more businesses are outgrowing their existing in-house capacity and having to reconfigure their IT operations. But how do you migrate a busy application to a totally new data center without downtime? How will the application scale in a virtualized cloud environment? And how do you guard against cloud server failures and keep a high level of uptime?

 

 

In this example, we will show you how to migrate a Web application (Wordpress) from a local data center to a AWS VPC. Without downtime even! 

 

Main steps:

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    Clustering SugarCRM with MySQL Galera for High Availability and Performance
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    March 20, 2014 By Severalnines

    SugarCRM is the leader in open source CRM systems, and has been adopted by some of the largest firms, including IBM. The CRM software includes all sales, marketing and support tools out of the box, and can also be extended to integrate social media sources. For those depending on SugarCRM, especially when deploying in cloud environments with lower SLAs, having a high availability architecture can make a lot of sense. 

    In this blog post, we will show you how to cluster SugarCRM Community Edition

      [Read more...]
    Webinar Replay & Slides: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster
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    March 13, 2014 By Severalnines

    Thanks to everyone who attended this week’s webinar; if you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

     

    Special thanks to Seppo Jaakola, CEO at Codership, the creators of Galera Cluster, and to Johan Andersson, CTO at Severalnines, for their presentations and the live demo.

     

    Webinar topics discussed: 

    • Application use cases for Galera
    • Schema design
    • Events and Triggers
    • Query design
    • Migrating the schema
    • Loading initial data into the
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    How to use the ClusterControl REST API to automate your Database Cluster
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    March 11, 2014 By Severalnines

    For ops folks with multiple environments and instances to manage, a fully programmable infrastructure is the basis for automation. ClusterControl exposes all functionality through a REST API. The web UI also interacts with the REST API to retrieve monitoring data (cluster load, alarms, backup status, etc.) or to send management commands (add/remove nodes, run backups, upgrade a cluster, add/remove load balancer, etc.). The API is written in PHP and runs under Apache. The diagram below illustrates the architecture of ClusterControl.

    Figure: ClusterControl

      [Read more...]
    Resources for HA Database Clusters: New ClusterControl Release, Galera Migration Webinar & Blog Resources
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    March 6, 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!

     

    ClusterControl 1.2.5 released

    We are pleased to announce the release of ClusterControl 1.2.5, which now supports MySQL 5.6 and Global Transaction IDs to enable cross-datacenter and cloud replication over high latency networks. Galera users are now able to assign nodes to their

      [Read more...]
    How to Set Up Asynchronous Replication from Galera Cluster to Standalone MySQL server with GTID
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    March 3, 2014 By Severalnines

    Hybrid replication, i.e. combining Galera and asynchronous MySQL replication in the same setup, became much easier with MySQL 5.6 and GTID. Although it was fairly straightforward to replicate from a standalone MySQL server to a Galera Cluster, doing it the other way round (Galera → standalone MySQL) was a bit more challenging. At least until MySQL 5.6 and GTID. 

    There are a few good reasons to attach an asynchronous slave to a Galera Cluster. For one, long-running reporting/OLAP type queries on a Galera node might slow down an entire cluster, if the reporting load is so intensive that the node has to

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    MongoDB and Hadoop - Stockholm MongoDB User Group Meetup - Monday, March 3, 2014
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    February 27, 2014 By Severalnines

     

    Stockholm MongoDB User Group Meetup: “MongoDB and Hadoop”

    Monday, March 3, 2014 starting @ 5:00 PM

     

    Join us next Monday as we host the Stockholm MongoDB User Group Meetup in Kista, or the Wireless Valley as it is also referred to. 

     

    Our very own Vinay Joosery will be speaking about how to best automate the management & deployment of database clusters, specifically MongoDB clusters though the same principles apply for MySQL, MariaDB and Percona XtraDB based clusters. Henrik Ingo of MongoDB will be talking about Analytics with MongoDB & Hadoop. And Jim Dowling, a Senior Researcher at the Swedish Institute of Computer Science, will talk

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    How to Deploy Galera Cluster for MySQL using Docker Containers
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    February 18, 2014 By Severalnines

    Virtual Machines are great, and very useful when trying out new software. However, they might be an unnecessarily heavyweight solution when testing clusters, especially if these consist of multiple nodes running exactly the same software. Each VM runs a full-blown OS image. On the other hand, Linux Containers (LXC) are an efficient alternative to OS-level virtualization and can run multiple isolated systems on a single host. Docker is a wrapper around LXC, it automates the deployment of applications inside containers. 

    A notable advantage if you run with Docker + LXC is you can run many containers on a single host.

      [Read more...]
    Webinar: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster
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    February 13, 2014 By Severalnines

     

    Galera is slowly but surely establishing itself as a credible replacement for traditional MySQL master-slave architectures. 

    The benefits are clear - a true multi-master InnoDB setup with built-in fail-over, potentially across data centers. 

    But how do you migrate? Does the schema or application change? What are the limitations? Can migration be done online, without service interruption? What are the potential risks, and how to address those?

     

    Webinar: Migrating to MySQL, MariaDB Galera and/or Percona XtraDB Cluster

     

    Tuesday, March

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    How to Cluster Liferay with MySQL Galera and Ceph for High Availability and Performance
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    February 3, 2014 By Severalnines

    Liferay is an open-source content management system written in Java. It is used by a number of high traffic sites, as this survey suggests. 

    Clustering Liferay and other components such as the database and the file system is a good way to handle the performance requirements of a high traffic site. The latest Liferay version has introduced features that simplify clustering, such as built-in support for Ehcache clustering, Lucene replication, read/write splitting capabilities for database (in case if you run on

      [Read more...]
    Showing entries 1 to 30 of 70 Next 30 Older Entries

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