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Home > Success Center > Network Performance Monitor (NPM) > High CPU load in SolarWinds NPM service

High CPU load in SolarWinds NPM service

Created by Karen Valdellon, last modified by Aileen de Lara_ret on Oct 05, 2016

Views: 1,124 Votes: 0 Revisions: 3

Overview

This article provides brief information and steps to resolve the issue when NPM has high CPU load condition.

Environment

All NPM versions

 

Cause 

Many applications, including Access databases, like MIBs.cfg, may be configured to temporarily store files in the Windows temp directory. If these temporary files are not deleted when they are no longer needed and the number of these files in the Windows temp directory reaches 64k, the SolarWinds Network Performance Monitor Service can no longer write the temp files it requires. When this happens, the SolarWinds Network Performance Monitor Service will enter a loop where it tries to create a file that it cannot store anywhere, ultimately consuming up to 100% CPU load.

Resolution

Delete all files from the Windows temp directory on your Orion Server.

 

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