Handling 10,000 concurrent users

[eluser]Relexx[/eluser]
I don't know what database you are using, or if you are using one, but with 10,000 concurrent users data concurrency could be an issue.

[eluser]ravi kiran[/eluser]
Hi Relexx,
I am planning to use mysql.

[eluser]Relexx[/eluser]
Then you need to understand how mysql handles concurrent updates, deletes. 10,000 users, I assume, will significantly increase the chance of the same records being updated. You definitly want to be looking an InnoDB or Falcon (if using Mysql6).

InnoDB
InnoDB storage Engine
in particular
- Transaction model
- Multi-versioning

Falcon
Falcon Storage Engine

If you are storing credit card details you need to consider standards such as PCIDSS

[eluser]ravi kiran[/eluser]
I am guessing..problem wouldnt be with updates..this site we are planning is mainly about retrieving data..so majority u can say 80% of the users use it to retrieve data

[eluser]ravi kiran[/eluser]
To be exact this will be a business listing directory