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Home > Success Center > Network Performance Monitor (NPM) > CPU Threads rising on poller after upgrade of NPM 11.5.2

CPU Threads rising on poller after upgrade of NPM 11.5.2

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Created by Eric Bryant, last modified by MindTouch on Jun 23, 2016

Views: 19 Votes: 0 Revisions: 4


This article describes the issue when you see the CPU utilization and Threads increasing and never drop off.


NPM version 11.5.2


  1.  Open resource monitor on Orion server. Check the link below for reference:

  2.  Click svchost.exe (rpcss).

  3.  Click network tab > TCP connections.

  4.  Identify any IP address that is continuously repeated.

  5.  Go to the Web Console > Manage Nodes > Search for IP(s).

  6.  Edit Node and test connections.

Note: WMI connections often fail the test connection. 

  7.  Fix the nodes on WMI connection or switch to agent polling under polling method in Edit node.

For explanation of the thread exhaustion, click the link below:


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