Topology Calculator Failed

Question

Hii

Topology Calculator is not working properly. In the log we can see this error:

2019-09-18 15:19:36,958 [1] ERROR SolarWinds.Topology.Calculator.Calculator - Failed, exception: System.OutOfMemoryException: Exception of type 'System.OutOfMemoryException' was thrown.

at System.Collections.Generic.Dictionary`2.Initialize(Int32 capacity)

at System.Collections.Generic.Dictionary`2..ctor(Int32 capacity, IEqualityComparer`1 comparer)

at System.Collections.Generic.Dictionary`2..ctor(Int32 capacity)

at SolarWinds.Orion.Topology.Framework.Common.Internals.TransitiveLinkManagerFloyd`1..ctor(INodeRepository nodes)

at SolarWinds.Orion.Topology.Framework.Actions.LinkFilters.Layer2CamBasedLinksFilter.CreateDirectLinkManager(INodeRepository nodes, IDataContainer container)

at SolarWinds.Orion.Topology.Framework.Actions.LinkFilters.Layer2CamBasedLinksFilter.BySharedPortWithDirectLink.Filter(INodeRepository nodeRepository, NewNodeLinksManager newLinksManager, IDataContainer container)

at SolarWinds.Orion.Topology.Framework.Engine.TopologyEngine.SolveDirectLinks(TopologyConfiguration config, InternalTopologyPhase currentPhase, IEnumerable`1 inputNodes, GlobalContext context)

at SolarWinds.Orion.Topology.Framework.Engine.TopologyEngine.ProcessPhase(TopologyConfiguration configuration, GlobalContext context, InternalTopologyPhase currentPhase, IEnumerable`1 inputNodes)

at SolarWinds.Orion.Topology.Framework.Engine.TopologyEngine.CalculateTopology(TopologyConfiguration configuration)

at SolarWinds.Orion.Core.Topology.Calculation.TopologyCalculationEngine.Calculate()

at SolarWinds.Topology.Calculator.Calculator.Execute(String[] args)

karem · Answer

then how can I resolve that:

neomatrix1217 · Answer

Any of the following can cause the issue:

* A large environment
* Duplicate IP addresses in use in the same environment
* Topology Calculator is still in 32-bit for older NPM versions

Check for duplicate nodes, sysnames, and IP addresses.

* Run the Active Diagnostics tool in C:\Program Files (x86)\SolarWinds\Orion\ActiveDiagnostics\SolarWinds.Orion.ActiveDiagnostics.exe.
* Click Run individual tests.
* Expand the Topology section.
* Click Run tests.
* When the test completes, a list of duplicate nodes, sysnames, or  IP addresses will be displayed.

geo1 · Answer

Hii

NPM 12.5

On Wednesday, September 18, 2019, neomatrix1217 <