Using LVM + DRBD + NFS + Heartbeat + VTun To Gain Data Persistence, Redundancy, Automatic Fail-Over, and Read/Write Disk Access Across Multiple EC2 Nodes

(tags: amazon article aws availability ec2 failover hosting gridcomputing storage s3 howto linux paper)

MySQL has simple but quite handy feature – slow query log, which allows you to log all queries which took over define number of seconds to execute.

(tags: analysis article database log monitoring mysql performance tuning query slow tool)

This perl script parses a MySQL slow_queries log file ignoring all queries less than $min_time and prints out how many times a query was greater than $min_time with the seconds it took each time to run. The queries are sorted by number of times it ran, wi

(tags: analysis database log logging mysql parser performance sysadmin tools perl query)

The Ruby MySQL slow query log parser converts your slow query logs in to a more usable format.
It also adds some interesting information like median and average times.

(tags: mysql slow query log analysis tool ruby)

(tags: lightorm propel doctrine orm php comparison)

LightOrm is a small, fast and powerful ORM library for PHP 5. It has all main ORM features and even more, such as object cache control, memory usage control and some others. Benchmarks show that it is one of the fastest ORM library for PHP.

(tags: database db library mapping object orm php5 php)