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Displaying posts with tag: cluster (reset)
Continuent Tungsten at The OpenStack Summit HK

Continuent is proud to sponsor The OpenStack Summit, November 5-8, at the AsiaWorld Expo in Hong Kong! Don't miss this presentation by Edward Archibald:

Deploying a Highly-Available Database-as-a-Service in OpenStack

In his talk, Edward Archibald, CTO at Continuent, will demonstrate the ease of deploying a multi-site, highly-available, scalable Database-as-a-Service across two OpenStack

MySQL Fabric with MariaDB Galera Cluster ?

MySQL Fabric is a very promising sharding framework. If I take Ulf Wendel definition of MySQL Fabric :

MySQL Fabric is an administration tool to build large “farms” of MySQL servers. In its most basic form, a farm is a collection of MySQL Replication clusters. In its most advanced form, a farm is a collection of [...]

Percona XtraDB Cluster – A Drop-in-place Clustering Solution for MySQL

Emphasis on clustering solutions comes up quite a lot when talking to customers about High Availability. The reason is because clustering is supposed to provide an easier solution for maintaining high availability and so that you do not have to rely on other tools and techniques outside of the database server. I thought it would be good to share the gist of many of my discussions around clustering, in the form of a blog post. So here I will be doing a high-level comparison between MySQL NDB Cluster and Percona XtraDB Cluster.

The post Percona XtraDB Cluster – A Drop-in-place Clustering Solution for MySQL appeared first on ovais.tariq.

Extreme Real-Time Performance With MySQL Cluster

For those looking for extreme real-time performance, high availability and speed, consider MySQL Cluster.

In the MySQL Cluster training, within 3 days, you learn to:

  • Describe the different nodes in MySQL Cluster
  • Install, start and stop nodes
  • Understand and work with configuration files
  • Upgrade a cluster
  • Explain node failure and understand how restart works
  • Configure the cluster for optimal performance

Here is a selection of the events currently scheduled for this live instructor-led course:



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How Marketo solved key data management challenges with Continuent Tungsten

Marketo provides the leading cloud-based marketing software platform for companies of all sizes to build and sustain engaging customer relationships. Marketo's SaaS platform runs on MySQL and has faced data management challenges common to all 24x7 SaaS businesses:

Keeping data available regardless of DBMS failures or planned maintenance Utilizing hardware optimized for multi-terabyte MySQL

Must-see webinars for SaaS and business-critical MySQL users

Join Continuent and our customers Modernizing Medicine and Marketo to learn how to run business-critical MySQL applications in the cloud or on-premises. Modernizing Medicine is a fast-growing SaaS company, offering electronic medical records management solution. Matthew Lang, Sr. Site Reliability Engineer at Modernizing Medicine, describes how Modernizing Medicine serves thousands of customers

Tap into the 5 Nines of MySQL Cluster with Oracle Training

With its distributed, shared-nothing architecture, MySQL Cluster has been designed to deliver 99.999% availability ensuring resilience to failures and the ability to perform scheduled maintenance without downtime.

With the MySQL Cluster training course, in 3 days, you learn important clustering concepts as well as how to install and configure MySQL Cluster and manage cluster nodes. 

Below is a selection of events already on the schedule.



 Delivery Language

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Connection Failures Between Nodes in MySQL Cluster

If you're setting up MySQL Cluster on Oracle Linux or another Linux such as Red Hat, CentOS or Fedora, you might have come across some problems getting the nodes to communicate. There are two ways you might bump into problems with network connectivity: The iptables firewall, and SELinux. These security mechanisms might prevent your various nodes—management, data, and API—from communicating with each other in various ways and with various symptoms.

Let's have a look at what you're likely to see. 

Data nodes stuck at "starting"

The first thing you might notice is that your data nodes get stuck in the "starting" state. Running show in the management client gives something like this:

[ndbd(NDB)]     2 node(s)
id=2    @  (mysql-5.6.11 ndb-7.3.2, Nodegroup: 0, Master)
id=3    @  (mysql-5.6.11 ndb-7.3.2, starting, Nodegroup: 0)

...and it never moves away from starting.

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Fun with Bugs #12 - MySQL Cluster 7.3 GA

I had always tried to avoid all kinds of clusters, from Oracle RAC to MySQL NDB Cluster and Percona XtraDB Cluster, as much as possible. But these days clusters become common and it seems new developments in this area can not be just ignored. So, I decided to devote this issue of "Fun with Bugs" to MySQL Cluster 7.3, that was released as GA this week and still is in the news.

The release was mostly about adding foreign keys support (one of the features that some users were missing for years comparing to InnoDB and other cluster database solutions). At the same time, MySQL Cluster is now based on MySQL Server 5.6 code. I've decided to quickly check how community adopted 7.3 and what it means in terms of bug reports.

If one would just search for active bugs in version "7.3" at the public bugs database using its own advanced search form, she would find only 8 bugs, of …

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How to Cluster Magento, nginx and MySQL on Multiple Servers for High Availability

June 17, 2013 By Severalnines

Magento is an open-source e-commerce platform built on Zend PHP and MySQL. It is widely adopted by online retailers with some 150,000 sites known to use it. Single server setups are easy to set up, but if your store is a huge success, then you probably need to think about clustering your environment with multiple servers. Clustering is done at the web, database and file-system level, as all web nodes need access to catalog images. 


This post is similar to our previous posts on scaling Drupal and WordPress performance, and focuses on how to scale Magento on multiple servers. The software used is Magento version , nginx, HAProxy, MySQL Galera …

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