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Routing Neighbors Resource Error

I noticed the following errors in the routing neighbors resources on one of our devices.

I checked another device and the resource loads the information just fine. Any ideas on why this node seems to be having the issue?

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bharris1

Is there a way to see any logging behind this message?

superfly

Do a List Resources on this device to see if all the right boxes are still ticked.

bharris1

They are still ticked. I added the node again on a different poller to get fresh polls and the same error appeared. Any ideas?

christopher.t.jones123

@bharris1Look in the OrionWeb immediately after refreshing the page, it might provide insight as to why the resource isn't loading, another log that might worth having a look at is the InformationService Logs

bharris1

Found something... Any ideas?

2021-03-09 10:07:16,526 [223] (2001) ERROR SolarWinds.NPM.Web.UI.TabularResource.TabularResourceServiceBase - (null) Exception while doing webservice callback
System.ArgumentException: An item with the same key has already been added.
at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Linq.Enumerable.ToDictionary[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, IEqualityComparer`1 comparer)
at Routing.ConvertDataToDictionary(DataTable sourceDataTable) in E:\InetPub\SolarWinds\Orion\NPM\Services\Routing.asmx:line 215
at Routing.GetNodeData(InformationServiceProxy swis, DataTable filterData, String filterColumn) in E:\InetPub\SolarWinds\Orion\NPM\Services\Routing.asmx:line 210
at Routing.TopFlappingRoutes(RoutingPagingStatus pagingStatus, RoutingFlappingRoutesConfiguration configParameters) in E:\InetPub\SolarWinds\Orion\NPM\Services\Routing.asmx:line 602