On 7/5/05, Connie DeCinko <[EMAIL PROTECTED]> wrote: > Also check for a hung outgoing email message. This was a big problem in > CF5. Or a zero length email. >
ColdFusion 4.5.1 SP2, specifically, had the problem where memory corruption (usually traced back to no locking or improper locking of shared scope variables) led to leaked file handles from CFMAIL. The mail/spool directory would have one or more 0 byte email messages there and other good mail queued up behind it chronologically. The CPU would flat line at 100% indefinitely. CF5 *fixed* that problem, but another similar one was introduced where the mail files were partially written (usually 1k byte) and would cause the CPU to race at 80-90% instead of flat line at 100%. So while zero byte mail files would just be deleted, this new 1k mail file problem would produce the same end result (a failing CF server) but with slightly different symptoms. The original cause in both of these was attributed to sources of memory corruption (i.e. unlocked shared scope vars), and the leaked/invalid mail file was considered a secondary effect. For the "Request canceled or ignored by server Server busy or unable to fulfill request" error I would look for bottlenecks in the application by turning on "Log Slow Pages" and then watch the server.log for entries, and enable "Restart after X Unresponsive Requests" and enable a low timeout (15,30,or 60 seconds). Watch the server.log for this type of entry too (any page exceeding the timeout will be logged as such in server.log, i.e. 'the unresponsive request count is up to 1'). Bumping up Sim Reqs haphazardly is not a solution. Identify and fix bottlenecks instead. -- Steven Erat http://www.talkingtree.com/blog/ -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:211171 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
