Zabbix is an enterprise-class open source software for monitoring of networks and applications. It is designed to monitor and track the status of various network services, servers and applications. It offers advanced monitoring, alerting, and visualization features.

This is a step by step guide on "Installing Zabbix on CentOS" for MySQL monitoring. Monitoring mysql will be posted in seperate article.

Install Apache httpd

[root@localhost ~]# yum -y install httpd

Start httpd service

[root@localhost ~]# /etc/init.d/httpd start           [  OK  ]
[root@localhost ~]# ps -ef | grep http
root      2011     1  0 11:46 …

A fascinating post-mortem on high profile network failures:

This post is meant as a reference point–to illustrate that, according to a wide range of accounts, partitions occur in many real-world environments. Processes, servers, NICs, switches, local and wide area networks can all fail, and the resulting economic consequences are real. Network outages can suddenly arise in systems that are stable for months at a time, during routine upgrades, or as a result of emergency maintenance. The consequences of these outages range from increased latency and temporary unavailability to inconsistency, corruption, and data loss. Split-brain is not an academic concern: it happens to all kinds of systems–sometimes for days on end. Partitions deserve serious consideration.

Today social media applications plays an important role in our day-to-day activities as a result of the Web 2.0 revolution that took place in the Internet. It has revolutionized the lifestyle of almost all the individuals and business entities, for the majority of them spending at least few minutes with it has become an integral […]

In the tutorial, I will discuss the setup and configuration for remote and local Git repositories using SSH to transfer files between server and client. I used a Linux based server and a Mac OS X client for development but steps should work on similar environments supporting SSH.

One of the best new ideas in my eyes came from quelbs. Using an integer column for storing UNIX timestamp values is a wide spread approach in the world of web development. For example in a Typo3 database, all date/time handling is done with UNIX timestamps. Unfortunately, for MySQL this is of course a normal integer value, with no meaning of being a date/time value.

Now, HeidiSQL allows the user to explicitly set a column to "This is a UNIX timestamp" via right click menu. Once activated, integers are internally converted to and displayed as human readable date/time values. Editing such values also uses the inplace editor for date values.

One of the best new ideas in my eyes came from quelbs. Using an integer column for storing UNIX timestamp values is a wide spread approach in the world of web development. For example in a Typo3 database, all date/time handling is done with UNIX timestamps. Unfortunately, for MySQL this is of course a normal integer value, with no meaning of being a date/time value.

Now, HeidiSQL allows the user to explicitly set a column to "This is a UNIX timestamp" via right click menu. Once activated, integers are internally converted to and displayed as human readable date/time values. Editing such values also uses the inplace editor for date values.

One of the best new ideas in my eyes came from quelbs. Using an integer column for storing UNIX timestamp values is a wide spread approach in the world of web development. For example in a Typo3 database, all date/time handling is done with UNIX timestamps. Unfortunately, for MySQL this is of course a normal integer value, with no meaning of being a date/time value.

Now, HeidiSQL allows the user to explicitly set a column to "This is a UNIX timestamp" via right click menu. Once activated, integers are internally converted to and displayed as human readable date/time values. Editing such values also uses the inplace editor for date values.

One of the best new ideas in my eyes came from quelbs. Using an integer column for storing UNIX timestamp values is a wide spread approach in the world of web development. For example in a Typo3 database, all date/time handling is done with UNIX timestamps. Unfortunately, for MySQL this is of course a normal integer value, with no meaning of being a date/time value.

Now, HeidiSQL allows the user to explicitly set a column to "This is a UNIX timestamp" via right click menu. Once activated, integers are internally converted to and displayed as human readable date/time values. Editing such values also uses the inplace editor for date values.

The new release of the MySQL Performance Monitor (mpm) is out!

New additions and improvements

• Easy to use templates
• Improved Security
• New Trigger Checks
• New Warnings Enabled
• Time Zone Shift Added
• New screens added
• Data transfer enabled

and much more (see below).

The MySQL Performance Monitor (mpm) for MySQL, Galera Cluster, Percona Server and MariaDB is a Monitoring Solution based on the Enterprise open source Monitor Zabbix.

It provides all the necessary modules to monitor MySQL performance metrics in detail and …

I am writting my first ever blog post after four and a half years since I started my career as a MySQL DBA. I used to read lots of blog posts  especially from mysqlperformceblog , but  never really had the interest of writting one.  But this interesting question from a client made me write this blog post.

“Why is my MySQL consuming only “core 0”, while I have 8 cores and there is hardly any usage in the other cores?”

This is a question put forward by one of our clients. Started my investigation by looking into the cpu usage stats. It was true that only “core 0” was getting used and the other cores were rarely getting …