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What is slowing down my Domino server?

Michael Lazar EXPERT RESPONSE FROM: Michael Lazar

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QUESTION POSED ON: 15 May 2008
Dear Mike: My Lotus Domino server has been suffering periodically from slow performance. During peak performance times, I notice that the process nserver.exe in the task manager sometimes reaches over 95% CPU usage. In most cases, it is over 90%. Is there a third-party tool to help me determine which Domino task is weighing down the CPU?

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EXPERT RESPONSE
It is actually the server task. If you look at your task manager, you will see namgr.exe, nreplica.exe, etc. If you have a support contract, I would open a call with IBM on this. The next time that it happens, they may have you put in some debug parameters to try and troubleshoot what is going on.

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Related information from SearchDomino.com:

  • Expert Advice: Slow Domino server performance and failure on agent managers
  • Troubleshooting Guide: Lotus Domino Server performance-tuning pointers
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