On 2/15/06, John C. Bland II <[EMAIL PROTECTED]> wrote: > Good answer. So essentially Nagios will calmly stop the processing of your > cf app? By stop I mean it will set a flag somwehere (app scope, etc) which > tells your site to degrade?
You could if you want to, but I actually don't do that. Before you gasp in horror, I want to reiterate that sometimes you just have larger problems than anything ColdFusion can solve for you. In my case, I'll get alerted every 15 seconds by 3 different geographic locations that are pinging our site that something's up with the database or with ColdFusion. I don't use the Probes feature built in to ColdFusion (Enterprise, anyway...never used Standard) because it's a purely CF solution. Well if CF is messed up somehow, then having that probe does me no good. I would submit that you should have at least one non-CF way of checking your site for a problem. > > Sounds interesting but not sure if I would nix my cftry/catches. Let's look > at another scenario. Definitely not advocating the abandonment of try/catches in the slightest. I use them a lot around snippets of logic. I never use it around checking for the existence of a variable though. > > You have a cfquery that executes a sproc (stored procedure) on your db. A > change is made to the sproc that unknowingly affects this lonely cfquery > tucked in a corner somewhere. How do you manage this potential error from > happening? Sometimes things happen and people forget to make certain updates > to necessary templates. It just happens. How does your app degrade here? You might hate this answer, but that's precisely what a staging environment and utilities like rsync and/or ANT are for. You're right, there's a human element to issues that might arise. But no amount of try/catch blocks or structKeyExists() checks can account for that. I go back to a comment I made above. ColdFusion can't solve every single issue that might arise with a web site. It would be convenient, and it would make my life a lot easier sometimes, but it can't...and it shouldn't. If you had to put in conditional checks to gracefully handle every potential change in your application, then you're fighting a losing battle, plain and simple. If you don't use utilities like rsync or ANT, then definitely do some research into them. I can't tell you how many times they've save my butt from this very problem you outlined. > > BTW, I guess I meant Dave but said Brad in my other post. No worries. Regards, Dave. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:232375 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
