In order to clean redis database, I used following commnad
redis-cli -p 1216
redis-cli> flushall
redis-cli -p 1216
redis-cli> flushall
ASP.NET, C#.NET, CruiseControl.NET, Microsoft SQL Server, MS-DOS Batch, MySQL, nAnt, NodeJs, PowerShell, Python, Selenium RC, Redis, WebAii, Ubuntu