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Showing entries 1 to 10 of 87 10 Older Entries

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New Webinar: A DevOps Guide to Database Infrastructure Automation for eCommerce
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December 17, 2014 By Severalnines

For an online shop, the website is the cash register. It has to be open for business 24 hours a day.

As the ops person on duty, when you get a call at 3am after your website went down, your priority number one is to restore the service asap. But why can we not have our application stack automatically recover, and not have the pager wake us at all? Why do we still stick to tedious manual processes, which take up time and resources, and hinder future growth?

Infrastructure automation isn’t easy, but it’s not rocket science either, says Riaan Nolan. Riaan has been in …

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Galera Cluster for MySQL vs MySQL (NDB) Cluster: A High Level Comparison - Webinar Replay & Slides
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December 16, 2014 By Severalnines

 

Thanks to everyone who attended and participated in last week’s webinar on 'Galera Cluster for MySQL vs MySQL (NDB) Cluster: A High Level Comparison'. If you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

 

In this webinar, Severalnines VP of Products, Alex Yu, who was part of the team at Ericsson who originally developed the NDB storage engine in 2001, gave an overview of the two clustering architectures and discussed their respective strengths and …

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Simple Backup Management of Galera Cluster using s9s_backup
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December 8, 2014 By Severalnines

Percona XtraBackup is a great backup tool with lots of nice features to make online and consistent backups, although the variety of options can be a bit overwhelming. s9s_backup tries to make it simpler for users, it creates an easy to use interface for XtraBackup features such as full backups, incremental backups, streaming/non-streaming, and parallel compression.

Backups are organized into backup sets, consisting of a full backup and zero or more incremental backups. s9s_backup manages …

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Multi-source Replication with MariaDB Galera Cluster
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December 1, 2014 By Severalnines

MariaDB 10 supports multi-source replication, and each MariaDB Galera node can have up to 64 masters connected to it. So it is possible to use a MariaDB Cluster as an aggregator for many single-instance MariaDB master servers.

In this blog post, we are going to show you how to setup multi-source replication with MariaDB Galera Cluster, where one of the Galera nodes is acting as slave to 3 MariaDB masters (see diagram below). If you would like to set this up with Percona XtraDB Cluster or Galera Cluster (Codership), please read …

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Multi-source Replication with Galera Cluster for MySQL
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November 20, 2014 By Severalnines

Multi-source replication means that one server can have multiple masters from which it replicates. Why multi-source? One good reason is to consolidate databases (e.g. merge your shards) for analytical reporting or as a centralized backup server. MariaDB 10 already has this feature, and MySQL 5.7 will also support it. 

It is possible to set up your Galera Cluster as an aggregator of your masters in a multi-source replication setup, we’ll walk you through the steps in this blog. Note that the howto is for Galera Cluster for MySQL (Codership) and Percona XtraDB Cluster. In a separate post, …

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9 DevOps Tips for Going in Production with Galera Cluster for MySQL - Webinar Replay & Slides
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November 14, 2014 By Severalnines

Thanks to everyone who attended and participated in this week's webinar on '9 DevOps Tips for Going in Production with Galera Cluster for MySQL'. If you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

 

In this webinar, Severalnines CTO Johan Andersson discussed 9 key aspects to consider before taking Galera Cluster for MySQL into production:

  • 101 Sanity Check
  • Operating System
  • Backup Strategies
  • Galera Recovery
  • Query …
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How to setup High Availability PrestaShop on multiple servers with MariaDB Galera Cluster
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November 7, 2014 By Severalnines

PrestaShop is a popular open source e-commerce software powering over 200,000 online stores, according to the company. We’ve seen a bit of interest into high availability PrestaShop setups, so this post will show you how to achieve that on multiple servers. Note that this setup not only caters for failures, but by load balancing traffic across multiple servers, it also allows the system to scale and handle more users.

This post is similar to our previous posts on web application scalability and high availability:

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Benchmark of Load Balancers for MySQL/MariaDB Galera Cluster
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October 31, 2014 By Severalnines

When running a MariaDB Cluster or Percona XtraDB Cluster, it is common to use a load balancer to distribute client requests across multiple database nodes. Load balancing SQL requests aims to optimize the usage of the database nodes, maximize throughput, minimize response times and avoid overload of the Galera nodes. 

In this blog post, we’ll take a look at four different open source load balancers, and do a quick benchmark to compare performance:

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Data Warehouse in the Cloud - How to Upload MySQL data into Amazon Redshift for reporting and analytics
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October 27, 2014 By Severalnines

The term data warehousing often brings to mind things like large complex projects, big businesses, proprietary hardware and expensive software licenses. With Hadoop came open source data analysis software that ran on commodity hardware, this helped address at least some of the cost aspects. We had previously blogged about MongoDB and …

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Integrating ClusterControl with FreeIPA and Windows Active Directory for Authentication
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October 17, 2014 By Severalnines

Integrating ClusterControl with a corporate LDAP directory is a common task for many IT organizations. In an earlier blog, we showed you how to integrate ClusterControl with OpenLDAP. In this post, we will show you how to integrate with FreeIPA and Windows Active Directory. 

 

How ClusterControl Performs LDAP Authentication

 

ClusterControl supports up to LDAPv3 protocol based on …

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Showing entries 1 to 10 of 87 10 Older Entries

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