On Tuesday, November 26, 2002, at 07:31 PM, Sean A Corfield wrote: > On Tuesday, Nov 26, 2002, at 16:31 US/Pacific, Dick Applebaum wrote: >> You recompile a Java class file that is referenced by cfobject. >> >> I am told that you must recycle CFMX for the updated class file to be >> recognized. > > Not if it is in a 'hot deploy' directory is my understanding (this has > been discussed here before but I don't recall the exact details). > > They drop and restart each server in the cluster. Normally production > systems do not use 'hot deploy' because of the performance overhead > involved in 'watching' a hot deploy directory. >
OK, then it would seem to make sense to use "hot deploy"on a developer system where the performance overhead would not be an issue. Then, on a single-server production system, not use "hot deploy". >> What about CFMXj2ee running on JRun, webSphere, ant the like? > > See above for clusters - some of those systems support session > replication / failover. That means zero downtime for this sort of > upgrade. So, with session replication/failover, you: 1) recompile the necessary Java class files and deploy them on all the servers (they remain inactive). 2) recycle each server, one-at-a-time, activating the updated class files It could get messy if the old Java classes were causing failures and/or you had other failures when recycling the individual servers -- but this would be unlikely. At best, you wouldn't even notice. At worst, you could recycle the whole system, > >> What about Pure Java/JSP systems on these app servers? > > Same. > So, If I understand, because of the automatic "not compile and hot deploy" of CF templates under CFMX -- You can incorporate CF changes, without recycling the system. On a pure Java/JSP system, you would likely need to recycle the system. Appears to be an advantage for CFMX. Is there some endemic reason that Java programs can't be/aren't "hot deployed" similar to the way CFMX does it? This whole server side is a big unknown to me -- thanks for your answers, and your patience! This is good poop! Dick ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Archives: http://www.houseoffusion.com/cf_lists/index.cfm?forumid=4 Subscription: http://www.houseoffusion.com/cf_lists/index.cfm?method=subscribe&forumid=4 FAQ: http://www.thenetprofits.co.uk/coldfusion/faq This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting.
