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 Performance
• Schema changes
• Security / Encryption
• Reporting
• Protecting from Disasters

Watch the replay 9 DevOps Tips for Going in …

September 3, 2014 By Severalnines

Running your database cluster on AWS is a great way to adapt to changing workloads by adding/removing instances, or by scaling up/down each instance. At Severalnines, we talk much more about scale-out than scale up, but there are cases where you might want to scale up an instance instead of scaling out. 

In this post, we’ll show you how to change instance sizes with respect to RAM, CPU and IOPS, and how to tune your Galera nodes accordingly. Moreover, this post assumes that instances are launched using Amazon VPC.

When do we need to upgrade an instance?

You typically need to upgrade an instance when you run out of server resources. This includes CPU, RAM, storage capacity, disk throughput and bandwidth. You must allow enough headroom for …

Join 27,000 others and follow Sean Hull on twitter @hullsean. I was shocked to find this article on ReadWrite: The Truth About DevOps: IT Isn’t Dead; It’s not even Dying. Wait a second, do people really think this? Truth is I have heard whispers of this before. I was at a meetup recently where the […]

August 15, 2014 By Severalnines

We're looking for an energetic and talented web developer to join our small but agile web team. This position is full-time and pay is negotiable. The hours are flexible and work can be done remotely.

Severalnines is a self-funded startup with a dozen employees; headquartered in Stockholm, Sweden and with a globally distributed, home-office based team. We provide automation and management software for database clusters. Our ClusterControl product is the leading management application for database clusters and is used by thousands of companies.

We were founded in 2010 and launched our product that same year, so you’ll be …

As businesses head into the cloud, it is tempting to reach for the first product that offers to make database operation as simple as punching a few buttons on a menu.  However, there’s a big difference between firing up cloud database services such as Amazon RDS for testing or development and finding a solution that can handle hundreds of millions of transactions daily. This webinar-on-demand

1. Backup script

#!/bin/sh
# Fri Jun 27 10:44:49 2014
# done by dragkh
# usage: 
# cat /etc/cron.d/backupmysql 
# 0  3  *  *  *       root    /root/bin/clean.backup.hyperion.mysql.mydumper.daily.sh >>  /var/log/clean.backup.${HOSTNAME}.mysql.mydumper.daily.log 2>&1
# 35  3  *  *  *       root    /root/bin/backup.hyperion.mysql.mydumper.daily.sh >> /var/log/backup.${HOSTNAME}.mysql.mydumper.daily.log 2>&1

ROOT_BACKUP_DIR="/home/mydumper"

seik_date () {
if [ -z $1 ]
then
# cdate=`date +%Y-%m-%d\ %H:%M:%S\ %Z`; export cdate; echo $cdate
cdate=`date -R`; export cdate; echo $cdate
else

if [ -z ${2} ]
then
cdate=`date +%Y-%m-%d.%H.%M.%S`; export cdate; echo $cdate
else
cdate=`date "+%Y-%m-%d %H:%M:%S"`; export cdate; echo $cdate
fi

fi
}


function check_dir {
 test ! -d "${1}" && mkdir -p "${1}"
}


function set_cpu_threads {
    # set the threads one less than the existing 
    threads=$(cat /proc/cpuinfo  |  grep processor | tail -1 | awk …

Running MySQL in the cloud offers many benefits, including extremely fast provisioning and deployment, managed security, and (mostly) easy operations. But nothing comes for free, and as with all things on this wonderful planet, those benefits come with certain limitations. Until recently, one of the significant drawbacks of MySQL on Amazon RDS was limitation of […]

May 19, 2014 By Severalnines

Thanks to everyone who attended and participated last week’s joint webinar on ClusterControl 1.2.6! We had great questions from participants (thank you), most of which are transcribed below with our answers to them.

If you missed the sessions or would like to watch the webinar again & browse through the slides, they are now available online.

Webinar topics discussed: 

• Database Infrastructure Lifecycle
• Deploy, Monitor, Manage, Scale
• MySQL, MariaDB & MongoDB Clusters
• ClusterControl Overview & Demo
• ClusterControl New Features in 1.2.6 & Demo
• Centralized Authentication using LDAP or Active Directory
• Role-Based Access …

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 Authentication using LDAP or Active Directory
• Role-Based Access Control
• OpenStack: Galera Deployment Automation
• Hybrid setups with Galera and Asynchronous MySQL Replication
• Manage single instance …

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