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Displaying posts with tag: Galera cluster (reset)
Setup three nodes MariaDB Galera Cluster on Single server with MySQL sandbox

For the production environment, it’s recommended that we should use separate server for each Galera Cluster node but sometimes, for the testing purpose we have to setup it on one server with different ports. Here are the steps for how to do that with CentOS 6.8, MariaDB Galera Cluster 10.1.21 and MySQL Sandbox

  • Download MariaDB 10.1.21 from this location

https://downloads.mariadb.org/mariadb/10.1.21/

  • If you want to use sst method = xtrabackup then install it with yum repo    

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Codership is hiring! We are looking for Quality Assurance Engineer

Codership QA Engineer

 

The QA Engineer/release manager will be responsible for working with the development team at Codership and create and execute tests, make builds of Galera Cluster and develop and extend test automation frameworks.

You will be also working closely with MariaDB development and quality assurance teams to prioritize software bug fixes.

 

Tasks

  • Continuously refine the QA process to improve product qualitY
  • Troubleshoot and work with the development team to isolate issues
  • Create and maintain automated tests
  • Make Galera software builds (our build pipeline uses python, Jenkins, Docker and Qemu)
  • Assist customers with their questions and support tickets

 

Desired Skills and Experience

  • 3 years of experience in QA on Linux
  • Proven record of implementing test …
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Meet Galera Cluster developers and experts at MariaDB MI17 Conference in New York April 11-12

Find Galera Cluster developers and experts in our booth.  We would be happy to hear your Galera Cluster story.

 

Galera presentations in MI17:

 

Deep Dive: Adding Replication and Scaling with Galera

Wednesday, April 12 1:10 pm – 2:00 pm.

Seppo  Jaakola, Codership CEO

Data inconsistency is the worst problem that can happen for a synchronous database cluster. At some point it will appear during replication processing, simply because the application of replication events is not possible in some cluster nodes due to missing rows, excessive rows or wrong values in the row columns. As a result, this usually stops the replication process ...READ MORE

 

Step-by-step: Clustering with Galera and Docker Swarm

Wednesday, April 12 2:10 pm – 3:00 pm

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USA Webinar-Galera Cluster® Best Practices for DBAs and DevOps Part 3: DDLs and Schema Upgrades Feb 21st

Description

 

In this part of the webinar series on best practices for Galera Cluster, we will discuss schema changes and DDL.

We will show how Galera Cluster executes DDLs in a safe, consistent manner across all the nodes in the cluster, and the differences with stand-alone MySQL. We will discuss how to prepare for and successfully carry out a schema upgrade and the considerations that need to be taken into account during the process.

The webinar will conclude with a Q&A session where you can ask any questions you may have about Galera Cluster.

Time: 9-10 AM PST (Pacific time zone), 21st of  February

Speakers: Philip Stoev, Quality and Release Manager, Codership                Sakari Keskitalo, COO, Codership

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Taking Full Advantage of Galera Multi-Master Replication-Galera Cluster Resources Updated

Last year Codership produced a lot of valuable content to help Galera users to get started with Galera and manage Galera. We have gathered  the resources to our website.

Taking Full Advantage of Galera Multi-Master replication video can be watched here.

We have now uploaded Slideshare with many new presentations. Check them out!

The best source of multi-master Galera Cluster help,  Galera Cluster documentation, is being updated constantly.

Galera Cluster: adding a primary key to a MySQL table which lacks it... without downtime

OK, let me start with saying that a table without a primary key shouldn't be something that a DBA should ever stumble into.  Sure, InnoDB will secretly add one for us without telling - but that's not something we can use at application or administration level, it's just to make the engine happy.

So let's suppose you find some tables that lack a primary key, of course you need to do something about it, right?  Now, put Galera Cluster in the mix - Galera does not support tables without a primary key and will, secretly again, make that table inconsistent at cluster level.

You need to fix the damn table(s)!! And this is where the fun begins...  as you can't afford downtime for the operation so you need to resort to an online schema change of some type.

Galera cluster is …

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In 2016 Galera Cluster surged past one million downloads – setting up for a great year in 2017

Helsinki, Finland & London, UK  – January 9th 2017 – Codership, whose Galera Cluster technology brings high availability (HA) and scalability to open source databases worldwide, has seen its technology break the one million download barrier. Codership’s customer roster has grown over 100 percent thanks to the adoption of OpenStack by enterprises and the recent strategic partnership with MariaDB.

 

Galera has been recognised as the most widely used OpenStack High Availability technology for the second year in a row. According to the OpenStack Survey 2016, one-third of users rely on Galera Clusters running on MariaDB and MySQL.

 

To cope with an increase of customer demand coming from various industries such as financial services, retail and telecoms, Codership has grown its engineering hires by 50 percent. The new team members will ensure Galera continues to deliver on its mission to …

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Taking Full Advantage of Galera Multi-Master Webinar – Dec 13th

Description

 

This webinar will be the second in our series on best practices to follow when using Galera Cluster.

In this part, we will discuss important topics related to multi-master setups:
* Practical considerations when using Galera in a multi-master setup
* Evaluating the characteristics of your database workload
* Preparing your application for multi-master
* Detecting and dealing with transaction conflicts

This is a webinar presented by Codership, the developers and experts of Galera Cluster.

DATE AND TIME FOR USA:  Tuesday, 9-10 AM PST (Pacific ), 13th of December

REGISTER TO USA WEBINAR WITH THIS LINK 

 

DATE AND TIME FOR …

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Codership is hiring Software Packaging Engineer!

Software Packaging EngineerJob Description & Main Responsibilities

 

Codership is looking for a part-time Build and Packaging Engineer. We use Jenkins to build various packages for multiple distros and the engineer will take ownership of the build pipeline and extend it to cover additional platforms and testing scenarios.

There are plenty of interesting problems to tackle on the job, from crafting .spec files with complex dependencies to automatically testing no-downtime rolling upgrades of a distributed system.

Main Responsibilities

  •  take the ownership of and maintain Galera Cluster packages on Linux (.RPM and .DEB) and BSD
  • maintain the automatic package building pipeline and extend it to cover additional platforms and testing scenarios

 

Desired Skills & Requirements

 

  • knowledge of …
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DDL Failures in MariaDB Galera Cluster

A MariaDB support customer recently asked me what would happen if a Data Definition Language (DDL) statement failed to complete on one or more nodes in MariaDB Galera Cluster. In this blog post, I will demonstrate what would happen. The demonstration below was performed on a 2-node cluster running MariaDB 10.1, but other Galera Cluster distributions should work similarly. Schema ... Read More

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