Note: This blog post is from 2010. Some content may be outdated--though not necessarily. Same with links and subsequent comments from myself or others. Corrections are welcome, in the comments. And I may revise the content as necessary.This is a very interesting change in CF9 (and 9.0.1), which has slipped under the radar for the most part it seems.
Did you know there is now a setting in the DSN page of the CF Admin (for most of the Adobe-provided DB drivers) which allows you to set a maximum timeout for queries against that DSN?
It's a new feature enabled for the DataDirect drivers, as updated in CF 9. (You will not see it if you use an "other" datasource type, such as when using a downloaded JDBC driver that you implement on CF.)
The caveat? This timeout is ONLY settable there in the DSN definition, not in CFQUERY (or CFSTOREDPROC) itself, which is a shame. The existing TIMEOUT attribute for those (CF10 added it for CFSTOREDPROC) is not the same and generally does not work. Still, the value of this even at the DSN level is too important to ignore for some challenges. More on that (and some other thoughts) in a moment.