No, what I'm saying is that the Java threads increase for the workload. The threads are automanaged, however, if you run a template that goes out and does 10 million long-running tasks that cause and error and never return, those threads will stick around for a long time.
Jesse Noller [EMAIL PROTECTED] Macromedia Server Development Unix/Linux "special guy" > -----Original Message----- > From: Simon Harper [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, August 20, 2002 9:49 AM > To: CF-Linux > Subject: RE: Increasingly numerous processes / RE: DoS attack > circumvention > > Thanks for this - I'll look into it. Just to make sure I understand you > correctly, are you saying that CF will spawn another thread/process when > another has 'not returned', i.e. that in testing I'll see another > thread/process start every time I hit the 'bad' template ? > > Ta, > > Simon > > --- > [EMAIL PROTECTED] > Applications Development Manager > Warwick Business School > > >>> [EMAIL PROTECTED] 20/08/2002 14:34:43 >>> > I would say run the test template per template, Ie: general application > debugging, find out which template is the one causing the server to spin > up > > Jesse Noller > [EMAIL PROTECTED] > Macromedia Server Development > Unix/Linux "special guy" > > > -----Original Message----- > > From: Simon Harper [mailto:[EMAIL PROTECTED]] > > Sent: Tuesday, August 20, 2002 9:31 AM > > To: CF-Linux > > Subject: RE: Increasingly numerous processes / RE: DoS attack > > circumvention > > > > Sorry, didn't realise how similar my issue was. > > > > > I take it you are running under load Simon? > > > > Yes, this server is now in production. > > > > > If you are running our of memory, then something in your > application > > (got CFX?) is causing > > > the child threads to increase dramatically until such time as the > > server vomits and dies. > > > > We don't use CFX per se, but do spawn some external processes > > (including virus checking of uploaded files). > > > > Are you suggesting that these [threads ?] may not be returning which > > means that CF starts another in it's place ?. There's nothing in > the > > logs to investigate - is there somewhere else I should look ? > > > > Thanks, > > > > Simon. > > > > > > --- > > [EMAIL PROTECTED] > > Applications Development Manager > > Warwick Business School > > > > >>> [EMAIL PROTECTED] 20/08/2002 13:36:25 >>> > > On linux, right? > > > > Welcome to the wonderful world of Linux "threading" Linux does not > have > > threading itself, instead, it has threading "emulation". This means > that > > a parent and children threads display as single processes instead of > > thread -> child (as on solaris). > > > > What you are seeing is normal, it's Java starting the parent and > > forking the children. This is not a DoS attack. > > > > I take it you are running under load Simon? If you are running our > of > > memory, then something in your application (got CFX?) is causing the > > child threads to increase dramatically until such time as the server > > vomits and dies. > > > > Jesse Noller > > [EMAIL PROTECTED] > > Macromedia Server Development > > Unix/Linux "special guy" > > > > Jesse Noller > > [EMAIL PROTECTED] > > Macromedia Server Development > > Unix/Linux "special guy" > > > > > -----Original Message----- > > > From: Simon Harper [mailto:[EMAIL PROTECTED]] > > > Sent: Tuesday, August 20, 2002 8:25 AM > > > To: CF-Linux > > > Subject: Increasingly numerous processes > > > > > > CFMX > > > RedHat 7.2 > > > Apache 1.3.2.2 > > > > > > Further investigation has revealed that no processes are > > dissappearing, > > > but a new one pops up every 2 or 3 minutes. There are now 150 > > processes > > > after running for two hours and I assume that, as before, this > > number > > > will continue to grow until we run out of memory again. > > > > > > I'm sure I must have missed a setting in the Administrator but > can't > > > work out which one (perhaps the memory allowed for the JVM ?). > > > > > > If anyone's got any ideas I'd love to try them. > > > > > > Thanks, > > > > > > Simon. > > > > > > > > > > > > > > > ______________________________________________________________________ Signup for the Fusion Authority news alert and keep up with the latest news in ColdFusion and related topics. http://www.fusionauthority.com/signup.cfm ------------------------------------------------------------------------------ Archives: http://www.mail-archive.com/cf-linux%40houseoffusion.com/ To Unsubscribe visit http://www.houseoffusion.com/index.cfm?sidebar=lists&body=lists/cf_linux or send a message to [EMAIL PROTECTED] with 'unsubscribe' in the body.
