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10 Newer Entries Showing entries 31 to 40 of 910 10 Older Entries

Displaying posts with tag: mariadb (reset)

Using YUM to install specific MySQL/Percona Server versions
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Sometimes it is desired to use particular software versions in production, and not necessary the latest ones. There may be several reasons for that, where I think the most common is when a new version should spend some time in testing or a staging environment before getting to production. In theory each new version is supposed to be better as usually it contains a handful of bug fixes and even new or improved functionality. However there is also a risk of some regression or a new bug introduction as a side effect of code changes.

Quite often DBAs want the same MySQL version to be installed on all database instances, …

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High Availability File Sync and Share - Deploying ownCloud with Galera Cluster for MySQL and GlusterFS
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January 5, 2015 By Severalnines

Cloud storage is hot. Dropbox, Apple iCloud, Google Drive, Microsoft SkyDrive and Amazon Cloud Drive all offer cloud sharing platforms where you can store documents in the cloud and access them from all your devices. For enterprises who require full control, ownCloud is an open source solution that allows files to be stored on-premises and/or a backend cloud. 

 

In this blog post, we’ll show you how to deploy a high availability setup using ownCloud Community Edition. We will need to set up redundancy in each of the following layers:

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MariaDB slave restore using GTID & xtrabackup bug
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Restoring MariaDB (MySQL) slave using Xtrabackup & GTID.

Resources for Database Clusters: New Chef Cookbook, New Devops Webinar for eCommerce and More
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Check Out Our Latest Technical Resources for MySQL, MariaDB & MongoDB Clusters

Like every month this year, we have created new content and tools for you; here is a summary of what we’ve published this December. Please do check it out and let us know if you have any comments or feedback.

And thank you for following us in the past 12 months and for your fidelity; we look forward to “seeing” you next year as well and wish you a great start to 2015!

 

New Live Technical Webinars

  …

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Chef Cookbooks for ClusterControl - Management and Monitoring for your Database Clusters
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If you are automating your infrastructure deployments with Chef, then read on. We are glad to announce the availability of a Chef cookbook for ClusterControl. This cookbook replaces previous cookbooks we released for ClusterControl and Galera Cluster. For those using Puppet, please have a look at our Puppet module for ClusterControl.

 

ClusterControl Cookbook on Chef Supermarket

The ClusterControl cookbook is available on …

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New Webinar: A DevOps Guide to Database Infrastructure Automation for eCommerce
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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 operations for the past decade, and has …

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Galera Cluster for MySQL vs MySQL (NDB) Cluster: A High Level Comparison - Webinar Replay & Slides
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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 weaknesses: 

  1. MySQL …
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How much memory should we assign to MariaDB?
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How much memory should we assign to MariaDB?

Before answering, I’ll show you a procedure I use to get the amount of memory I’m using. See the comments to make it work on Oracle MySQL.

CREATE PROCEDURE _.show_buffers()
        CONTAINS SQL
        COMMENT 'Show information about buffers size'
BEGIN
        SET @memory_per_thread := (
                          @@global.read_buffer_size
                        + @@global.read_rnd_buffer_size
                        + @@global.sort_buffer_size
                        + @@global.thread_stack
                        + @@global.join_buffer_size
                        + …

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General Purpose Storage Engines in MariaDB
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MariaDB tries to encourage use of many storage engines, which Oracle doesn't bother with. The ones that could be considered -- occasionally! -- as InnoDB replacements are: Mroonga, TokuDB, and Aria.

Mroonga

I predicted that Mroonga would be in MariaDB 10.0.8, and behold, here it is in MariaDB 10.0.15. Truly I am the Nostradamus of the database world.

It's a general-purpose storage engine, in that it doesn't have serious limitations regarding what can be stored or indexed. I think its "column-store" feature has limited appeal, but as I saw …

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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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10 Newer Entries Showing entries 31 to 40 of 910 10 Older Entries

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