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Well, as i had no time to investigate further, i downgraded to the previous mysql version and all work fine now.<br />
I will consider your recommendation for the next time the same issue will ahppen (hope not) 
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Well, as i had no time to investigate further, i downgraded to the previous mysql version and all work fine now.
I will consider your recommendation for the next time the same issue will ahppen (hope not)

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Hello experts,<br />
<br />
i am on a DDS windows 2003 enterprise server (IIS6) , SP2, with my PHP e-commerce apps running on MySQL 5 &amp;&nbsp;PHP 4.3.11<br />
Alle of the sudden, MySQL uses 100% of my CPU and the server stopped responding, so I had to disable MySQL service until i find the cause.<br />
Any idea what i should looking for?<br />
Database tables are optimized and queries running now hold to a minimum
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Hello experts,

i am on a DDS windows 2003 enterprise server (IIS6) , SP2, with my PHP e-commerce apps running on MySQL 5 & PHP 4.3.11
Alle of the sudden, MySQL uses 100% of my CPU and the server stopped responding, so I had to disable MySQL service until i find the cause.
Any idea what i should looking for?
Database tables are optimized and queries running now hold to a minimum

MySQL 5 CPU very high Usage

PHP is a widely-used server-side scripting language especially suited for web development, powering tens of millions of sites from Facebook to personal WordPress blogs. PHP is often paired with the MySQL relational database, but includes support for most other mainstream databases. By utilizing different Server APIs, PHP can work on many different web servers as a server-side scripting language.

MySQL is an open source, relational database management system that runs as a server providing multi-user access to a number of databases. Acquired by Oracle in 2009, it is frequently used in combination with PHP installations, powering most of the WordPress installations.