Pros:
- No CFLOCK, ever, ever again
- No CFAPPLICATION necessary
- 100% scaleable across servers with no server-specific code required
- No server-specific cookies or sticky sessions; user cannot be stranded
- More granular access to statistical data
- System is agnostic to hardware, software, application, etc.
- Can hold any data - simple or complex using WDDX
- 2 DB hits are fairly minor
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Cons:
- 2 DB hits + 2 WDDX actions per page MINIMUM
- Potential slowdowns with very large WDDX packets
- Maybe you really like CFLOCK?
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