Hello everybody, I am trying to get a node's resource list using the REST api with http calls. I can launch the job and check its status. But when making the request Invoke/Orion.Nodes/ImportListResourcesResult I'm always getting the error: One of the known types provided to the serializer via 'knownTypes' argument was invalid because it was null. All known types specified must be non-null values. Probably because I am a bit new to Solarwinds I have no clue what the error is referring to. What I do: Post a request to .../Invoke/Orion.Nodes/ScheduleListResources with body { "nodeId": 6 } . A job id is returned. For example "05fd1a93-e069-4a96-a3ad-d82e6affc4a4". Post requests to .../Invoke/Orion.Nodes/GetScheduledListResourcesStatus with body { "nodeId": 6 , jobId: "05fd1a93-e069-4a96-a3ad-d82e6affc4a4" } until the result is "ReadyForImport". Post a request to .../Invoke/Orion.Nodes/ImportListResourcesResult with body { "nodeId": 6 , jobId: "05fd1a93-e069-4a96-a3ad-d82e6affc4a4" } . This always returns the aforementioned error. There seems to be a timeout for importing the resource list, but I am pretty certain I'm doing the import request within seconds once the status became ReadyForImport. Am I missing something in the import request ? Or maybe Solarwinds is incorrectly configured ? Many thanks for helping a struggling SW newbee ! :-)

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Error .../Invoke/Orion.Nodes/ImportListResourcesResult

FormerMember over 4 years ago

Hello everybody,

I am trying to get a node's resource list using the REST api with http calls. I can launch the job and check its status. But when making the request Invoke/Orion.Nodes/ImportListResourcesResult I'm always getting the error:

One of the known types provided to the serializer via 'knownTypes' argument was invalid because it was null. All known types specified must be non-null values.

Probably because I am a bit new to Solarwinds I have no clue what the error is referring to.

What I do:

1. Post a request to .../Invoke/Orion.Nodes/ScheduleListResources with body { "nodeId": 6 }. A job id is returned. For example "05fd1a93-e069-4a96-a3ad-d82e6affc4a4".
2. Post requests to .../Invoke/Orion.Nodes/GetScheduledListResourcesStatus with body { "nodeId": 6 , jobId: "05fd1a93-e069-4a96-a3ad-d82e6affc4a4" } until the result is "ReadyForImport".
3. Post a request to .../Invoke/Orion.Nodes/ImportListResourcesResult with body { "nodeId": 6 , jobId: "05fd1a93-e069-4a96-a3ad-d82e6affc4a4" }. This always returns the aforementioned error.

There seems to be a timeout for importing the resource list, but I am pretty certain I'm doing the import request within seconds once the status became ReadyForImport.

Am I missing something in the import request ? Or maybe Solarwinds is incorrectly configured ?

Many thanks for helping a struggling SW newbee ! :-)

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0 dan_jagnow over 3 years ago

This is a confirmed bug. It is tracked internally as issue DC-3254. It has been fixed in the candidate builds for the next release of Orion.
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0 dan_jagnow over 3 years ago in reply to dan_jagnow

This issue with the ImportListResourcesResult verb has been fixed in the 2020.2 release of the Orion platform.
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0 Martin_Crothers over 3 years ago in reply to dan_jagnow

Hidan_jagnow,
I'm still experiencing this issue. I upgraded from 2019.4 to 2020.2 last week, but all jobs go into 'Unknown' state.
I tried via script using this: https://github.com/solarwinds/OrionSDK/blob/master/Samples/PowerShell/ImportListResources.ps1. But to eliminate potential script errors also tried directly through SWQL Studio.
I've restarted services and even rebooted the servers, no joy.
Any suggestions?
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0 Martin_Crothers over 3 years ago in reply to dan_jagnow

dan_jagnow: Can you direct me to anything to remediate this issue, please?
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0 mmozaydin over 2 years ago in reply to dan_jagnow

We upgraded system to 2020.2.6 but nothing changed. We got following errors..
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0 mmozaydin over 2 years ago in reply to dan_jagnow

We upgraded system to 2020.2.6 but nothing changed. We got following errors..
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0 dan_jagnow over 2 years ago in reply to mmozaydin

Hmm... I tested this out on a local Orion VM, and after kicking off ImportListResources on node via SWQL Studio, I was able to invoke GetScheduledListResources with a ReadyForImport response:

... and I was able to ImportListResourcesResults with a true response instead of an error.

Does this behavior occur regardless of which node ID you use? Do you see any errors in the log files near the timestamp of when you perform the ImportListResources?
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0 HerrDoktor over 2 years ago in reply to dan_jagnow

to revive this thread, we are also seeing this issue where a started "list Ressources" job keeps staying in the "unknown" status indefinitely. We are checking multiple NodeIDs, also different Polling methods (SNMP / WMI / Agent). Currently I see this only with one client.
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0 jastake over 2 years ago in reply to HerrDoktor

any progress on this issue? We are seeing the same issue with the "ScheduleListResources" remaining in the "unknown" state and we are running 2020.2.6.
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