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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

christopher.t.jones123

@bharris1from what it looks like there are multiple entries in the DB for this particular node routing statistics and it's getting confused. I could be wrong though.

I would run this query in SWQL studio or /Orion/admin/swis.aspx and look to see if there are multiple pollers for topology assigned to the node, the topology pollers all have a PollerType that contains 'Topology'. If there's duplicates in there you may have to delete the duplicated pollers to get the widget to work.

SELECT TOP 1000 PollerID, PollerType, NetObject, NetObjectType, NetObjectID, Enabled, DisplayName, Description, InstanceType, Uri, InstanceSiteId
FROM Orion.Pollers
where Netobject = 'N:INSERT_NODEID'

bharris1

I'm not seeing entries with the same pollerID or PollerType. They are all different.

christopher.t.jones123

@bharris1 if you are not concerned about retaining historical data you could try to remove and add the node back in. If you need to retain the historical data then you should probably open a ticket with SW support, to have them take a look at that web log and figure out exactly what its barking about.

bharris1

The interesting thing is that I readded it under a different poller and it threw the same error on the resource. I would have thought that adding at as a new node would have got it to display correctly.

christopher.t.jones123

oh, I misunderstood, I thought you meant you just moved it to a different polling engine. If you've already removed it and added it again and it's still displaying that, I would definitely recommend you submit a support ticket for it.