Here's another of the old notes that didn't make it...
From: Charlie Arehart [mailto:careh...@carehart.org] Sent: Tuesday, February 24, 2009 11:29 PM To: 'discussion@acfug.org' Subject: RE: [ACFUG Discuss] CF Applications hosted on third party webserver/hosting services Ajas, you shouldn't notice any overhead from this slow page logging, no. Of course, you could if your server activity caused it to log huge amounts quickly, but it's not typical (and not likely, because if you have a LOT of slow requests-enough to log so many as to wonder whether to worry-you'd in fact then not likely get many running at a high rate of requests/sec.) You ask for any suggestions on using this feature. One thing I'll point out is that Ray Camden has a tool to help find within the server.log file the entries that are generated by this feature. They can be easy to miss, otherwise. Learn more in my category on CF Log Analysis Tools at http://www.carehart.org/cf411/#cflog, where I point to a couple of blog entries he's done on the tool (different for 7 and 8). I'll also say this: be aware that this tracks requests only once they complete, not as soon as they cross the threshold you set. This confuses many, both because they look at the log at a point in time during the day and conclude, "we don't see any entries in the log right now, so we must not have any long running at the moment." Au contraire, mon fraire. ;-} They could be running and will not log until they complete. Similarly, if your server crashes, you won't have any record of these long-running requests (by way of this log, at least) if they are still running at the time of the crash. Just something to keep in mind. They're certainly better than nothing. Better still is a tool like the CF8 Server Monitor (free if you have CF8 Enterprise) or FusionReactor or SeeFusion (commercial for CF 6, 7, and 8, standard or enterprise). All 3 will provide an interface to show you what requests are running at any time, and FusionReactor goes farther than the other two to also log the requests-all of them, not just slow ones, which can be really valuable, especially for post mortem analysis after a crash, to see what led up to it, what was running at the time of the crash, and even for evaluating how requests ran long before the time of a crash, which can be very enlightening. I recommend for that a free tool to analyze any kind of log, called Microsoft Log Parser. You can learn more about it, and specifically using it with FusionReactor logs, at: http://groups.google.com/group/fusionreactor/web/log-parser-commands-for-fr- 3 Hope that's helpful, both for you and your question about the slow request log and for other aspects of doing similar analysis. /charlie From: ad...@acfug.org [mailto:ad...@acfug.org] On Behalf Of Ajas Mohammed Sent: Sunday, February 22, 2009 1:39 PM To: discussion@acfug.org Subject: Re: [ACFUG Discuss] CF Applications hosted on third party webserver/hosting services Hi, Teddy, I found the setting you mentioned to track slow running pages. If you go to Administrator, Debugging & Logging, the third option is Logging Settings. The first checkbox option provides the option to record slow running pages, which gets logged in server.log file. The initial setting is 30 seconds. I am thinking of making this 10. Any suggestions? Also, lets say I enable this logging on production server for 5-15 minutes during work hours, is it going to be an issue or CF is smart enough to write log file and people wouldn't notice the slowness? Let me know. Thanks, <Ajas Mohammed /> ------------------------------------------------------------- To unsubscribe from this list, manage your profile @ http://www.acfug.org?fa=login.edituserform For more info, see http://www.acfug.org/mailinglists Archive @ http://www.mail-archive.com/discussion%40acfug.org/ List hosted by http://www.fusionlink.com -------------------------------------------------------------
