Re: Insite Help on CF Hanging?
Client purge means that you have client variables turned on in the CF admin. The purge routine attempts to clear out stored variables either in the registry or in a database. If you're not using client variables turn this off, if you are, make sure that you're not storing them in the registry On Wed, Jul 23, 2014 at 9:52 AM, Les Mizzell lesm...@bellsouth.net wrote: Had a site go down in the early morning hours the last two days - Coldfusion hangs - requiring a restart to get it back up again. Running CF 10 on Windows Server 2008 R2 1. No major errors in the log files. 2. Log files are set to relatively small size limits 3. Something seems to be eating a LOT of memory. Even at idle, CFServer is using almost half a gig memory 4. What's is Client Purge and why could this possibly hang CF ( this appears to have run approximately around the time of the outage) - and why now after over a year with zero outages? That's about all I've got so far. Still researching Any other things I should be looking at/for? TIA ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358987 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
RE: Insite Help on CF Hanging?
Client purge is removing client vars that are too old. If you have client variables set to default they will be stored in the registery (win) or a big XML file. The purge process removes them. To fix this: A) Verify that you need client vars. If you don't adjust your application settings accordingly. B) if you DO need them I recommend that you 1) store them in a DB 2) do not set global variables unless you are using them (hitcount and last access) because this results in additional DB connection updates. As for you memory - at Idle a well tuned CF Server might indeed use half a gig or more. On a 64 bit installation half a gig is pretty close to the minimum required. Moreover I recommend that you set your min/max heap sizes to the same value so what would see (even at idle) is a large and fairly static memory footbpring - particallary if you are looking at the commit size in task manager. -Mark Mark Kruger - CFG CF Webtools www.cfwebtools.com www.coldfusionmuse.com O: 402.932.3318 E: mkru...@cfwebtools.com Skype: markakruger -Original Message- From: Les Mizzell [mailto:lesm...@bellsouth.net] Sent: Wednesday, July 23, 2014 8:52 AM To: cf-talk Subject: Insite Help on CF Hanging? Had a site go down in the early morning hours the last two days - Coldfusion hangs - requiring a restart to get it back up again. Running CF 10 on Windows Server 2008 R2 1. No major errors in the log files. 2. Log files are set to relatively small size limits 3. Something seems to be eating a LOT of memory. Even at idle, CFServer is using almost half a gig memory 4. What's is Client Purge and why could this possibly hang CF ( this appears to have run approximately around the time of the outage) - and why now after over a year with zero outages? That's about all I've got so far. Still researching Any other things I should be looking at/for? TIA ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358989 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
RE: Insite Help on CF Hanging?
Tia, FYI - storing client vars in the registry and locking up during the purge is a fairly common trouble spot. I would not be surprised if that is your problem. It can show up after a while too - because the client vars persist for 30 days, so you can suddenly see problems 30 days after an increase in traffic as the system tries to remove a boatload of client vars. -Mark -Original Message- From: Les Mizzell [mailto:lesm...@bellsouth.net] Sent: Wednesday, July 23, 2014 8:52 AM To: cf-talk Subject: Insite Help on CF Hanging? Had a site go down in the early morning hours the last two days - Coldfusion hangs - requiring a restart to get it back up again. Running CF 10 on Windows Server 2008 R2 1. No major errors in the log files. 2. Log files are set to relatively small size limits 3. Something seems to be eating a LOT of memory. Even at idle, CFServer is using almost half a gig memory 4. What's is Client Purge and why could this possibly hang CF ( this appears to have run approximately around the time of the outage) - and why now after over a year with zero outages? That's about all I've got so far. Still researching Any other things I should be looking at/for? TIA ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358990 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: Insite Help on CF Hanging?
Just read that one again. 30 days? Approx 30 days ago the site was hit with a SQL Injection attack. Wasn't 2000+ attempts like some of the previous attacks, but still, a couple hundred hits in a 15 minute period or so. Don't know if that means anything. On 7/23/2014 10:03 AM, Mark A Kruger wrote: Tia, FYI - storing client vars in the registry and locking up during the purge is a fairly common trouble spot. I would not be surprised if that is your problem. It can show up after a while too - because the client vars persist for 30 days, so you can suddenly see problems 30 days after an increase in traffic as the system tries to remove a boatload of client vars. -Mark -Original Message- From: Les Mizzell [mailto:lesm...@bellsouth.net] Sent: Wednesday, July 23, 2014 8:52 AM To: cf-talk Subject: Insite Help on CF Hanging? Had a site go down in the early morning hours the last two days - Coldfusion hangs - requiring a restart to get it back up again. Running CF 10 on Windows Server 2008 R2 1. No major errors in the log files. 2. Log files are set to relatively small size limits 3. Something seems to be eating a LOT of memory. Even at idle, CFServer is using almost half a gig memory 4. What's is Client Purge and why could this possibly hang CF ( this appears to have run approximately around the time of the outage) - and why now after over a year with zero outages? That's about all I've got so far. Still researching Any other things I should be looking at/for? TIA ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358991 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
Re: Insite Help on CF Hanging?
Are the client variables in a database? If so, I would run a query on the CF tables to get a count of records. It could be your attack was worse than you think and have a boat load of records. An attack like that would likely result in a set of client variables for each request. The query to purge the database will lock the tables. Any application using client variables would basically have to wait until that is done and keep chewing up memory. I know this was an issue in CF8, not sure if it's still a linger issue in newer versions, as that is around the time we stopped using client variables. @Mark, I want to say both CF 9 10 install with Cookie as the default client storage. This could just be how we provision our servers however. I remember the days of CF taking an hour to start if your client var registry was out of control. We had the oops moment on our shared servers long ago. Regards, Byron Mann Lead Engineer Architect HostMySite ~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:358992 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
