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Home > Success Center > Network Performance Monitor (NPM) > Group looping causes nlssorting.dll to malfunction and stalls application pools

Group looping causes nlssorting.dll to malfunction and stalls application pools

Created by Interspire Import, last modified by Magdalena.Markova on Mar 08, 2017

Views: 279 Votes: 1 Revisions: 16

 

Overview

The application pool stops functioning with the following error message after clicking Edit Interface:

Error in Event logs:
Faulting application name: w3wp.exe, version: 7.5.7601.17514, time stamp: 0x4ce7a5f8 Faulting module name: nlssorting.dll, version: 4.0.30319.18408, time stamp: 0x5231099a Exception code: 0xc00000fd Fault offset: 0x00001cda Faulting process id: 0x4a4c Faulting application start time: 0x01cfe3b889461ece Faulting application path: C:\Windows\SysWOW64\inetsrv\w3wp.exe Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.30319\nlssorting.dll Report Id: 333d8aa7-4fb1-11e4-9387-0050569d5969

Environment

All NPM versions

Cause

If the node groups are referenced within itself, it loops continuously and causes application pool errors.

Resolution

Before performing the following steps, create a current backup, as this will make permanent changes to your database. See Backing Up, Restoring, and Migrating your Orion Database.

  1. Click Start > All Programs > Solarwinds Orion > Advanced Features > Database Manager.

  2. Click Add Default Server.

  3. Right-click on the database, and then select New Query.

  4. Paste the following query, and then click Execute Query:

    Delete from ContainerMemberDefinitions 
    where containerid=SUBSTRING(Expression,20, 3)
  5. Click Save.
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