Is there a limit to number of threads on Windows 2003?

This topic has 3 replies, 4 voices, and was last updated 17 years, 3 months ago by Dick Bly.

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May 30, 2007 at 8:40 pm #49315

Mark Brown
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Our production engine currently has 125 threads (16 processes + 77 connections). When I tried to add one more thread, the network monitor starts acting freaky when I try to stop the process so I can save the new thread.

Is 125 threads the max? If so, is that the max for the machine or for one site? Or do I have a different problem?

We’re running v5.3.1 of Cloverleaf.
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- May 30, 2007 at 11:12 pm #61479
  
  Russ Ross
  Participant
  
  If you are saying that you have 125 threads in one site, then yes it is way past time for you to break things up into multiple sites.
  
  Unfortunately, there is no majic formula but you will get much more mileage out of your machine with multiple sites.
  
  Russ Ross
  RussRoss318@gmail.com
- May 31, 2007 at 6:51 pm #61480
  
  Michael Hertel
  Participant
  
  Try adding two threads instead. (One dummy one)
  
  There was a majic number once.
  
  Although I believe is was 31 threads in one process.
  
  When you added thread #32 the NetMonitor would come up blank.
  
  That problem has been resolved but I’m not sure in which release.
- June 12, 2007 at 2:55 pm #61481
  
  Dick Bly
  Participant
  
  The problem is realy in the qdxservice – it has a built in limit.
  
  you can start a process using the -n option ( bypass the service) but doing so outside of the context of the service will cause the process to die when the user signs off.
  
  the work around that I have used is to create an alert that starts the process if dead, using the -n option. This starts the process in the context of the service but not running under the service. works, no limitations.
  
  this limitation is supposed to be removed sometime in the future.
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