Absolutely. That's something we tested, and it did seem to make a slight difference. It did not stop things like cyclical calls to a page -- which, in reality, do happen and should be managed by the server... rather than simply being brought to it's knees.
| Piling up some assumptions: | | First of all, CF MX will wait indefinitely for database queries to | return if there is a problem in the JDBC driver or the database that | does not return an error condition. This will add to the | running request | number as well as eat 1 client access licence from the | dataabse server. This means that following request will have | less threads to work with, | and have to open a new databse connection. Eventually, this database | connection also breaks. Next client access license + thread eaten. | Process repeats itself until the maximum number of allowed | requests is | reached. | | Some way to test this scenario would be to disable connection | pooling. | Then you should be able to see on the database side how long | connections | stay open. If they stay open past the longest query, you found the | problem. | Another option would be to try and limit the amount of connections to | the database to something less as the restart threshold. Then | you would | start to see timeouts from queries not being able to get a database | connection before the server actually crashes. That's just the point, it doesn't work. And to my knowledge it has *never* worked in any version of CF. Certainly not that I could ever see. The server could be brought down thru DOS attacks. And essentially, this is what is happening -- albeit not "on purpose." | > At any rate.. The theory is that the latest SP will fix some of the | > issues. But in reality, this is truly a design issue -- | one that will | > require somewhat of a redesign on how CFMX services manage | themselves, | > report/handle errors and runaway conditions, etc. As we | all know, the | > "Restart Server on X Unresponsive Requests" simply has never worked. | | I think the current behaviour is OK, as long as the "Restart | Server on X | Unresponsive Requests" works. I never have that many hung | threads so I | can't confirm or deny. | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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.
