Sequence contains more than one matching element

[wilbecker]

Scratching my head on this one. There's 5 vCenters I access on a regular basis and on one of them I started getting this following.

get-cluster

get-cluster : 12/5/2019 3:00:59 PM      Get-Cluster             Sequence contains more than one matching element       

At line:1 char:1

+ get-cluster

+ ~~~~~~~~~~~

+ CategoryInfo          : NotSpecified: (:) [Get-Cluster], VimException

+ FullyQualifiedErrorId : Core_BaseCmdlet_UnknownError,VMware.VimAutomation.ViCore.Cmdlets.Commands.GetCluster

Same error for commands like get-vmhost and quite a few others. Commands like get-vm work fine but anything hosts,cluster,datastore fail.

Ideas?

[LucD]

Did you already try stop/start of your PS session?

[wilbecker]

Yes, sir. This isn't happening just for me either on this single vCenter. Based on other searches I looked for any duplicate entries or oddness. get-vm works but any commands against hosts and clusters appear to fail.

get-vmhost

get-vmhost : 12/5/2019 8:55:28 PM       Get-VMHost              Sequence contains more than one matching element      

At line:1 char:1

+ get-vmhost

+ ~~~~~~~~~~

+ CategoryInfo          : NotSpecified: (:) [Get-VMHost], VimException

+ FullyQualifiedErrorId : Core_BaseCmdlet_UnknownError,VMware.VimAutomation.ViCore.Cmdlets.Commands.GetVMHost

I did see some mentions you made in regards to a issue tag assignments a few years ago that was getting the same error and that ended up being a bug due to disconnected or "mangled" VM names.

A few months back we did perform a cluster rename but I'm pretty sure I've run successful vChecks since then. I was attempting to run your orphan file script on this vCenter when I started having these error returns. I'm not implying your script did anything, I use it all the time. It just brought these problems to my attention.

BTW you are awesome. Big fanboi

[LucD]

Thanks.

Which PowerCLI version and which vSphere version are you using?

Do you get correct results when using Get-View cmdlet and retrieve vSphere objects.

For example with

Get-View -ViewType HostSystem | Select Name

Get-View -ViewType VirtualMachine | Select Name

[wilbecker]

Get-View -ViewType HostSystem | Select Name

• Returns a list of all the hosts on the vCenter

Get-View -ViewType VirtualMachine | Select Name

• Returns a list of all the virtual machines on the vCenter

Versions:

• powercli version :  VMware PowerCLI 11.5.0 build 14912921
• powershell version: PSVersion 6.2.3

[LucD]

Ok, that seems to indicate it is a PowerCLI issue.
Do you bij any chance have a station (Windows OS) with PSv5.* somewhere to try the same?

[wilbecker]

Versions:

Powershell: 5.1.15063.1805

PowerCLI: 11.5.0 build 14912921

(side note: I upgrade the powercli version on this machine after I started running into this. I don't recall what version was previously installed)

Get-View -ViewType HostSystem | Select Name

• Returns a list of all the hosts on the vCenter

Get-View -ViewType VirtualMachine | Select Name

• Returns a list of all the virtual machines on the vCenter

get-vmhost and get-cluster returns the same sequence error.

When I run :

get-vmhost -name XXXXXXXX

The return is:

Get-VMHost Sequence contains more than one matching element

but also includes:

get-vmhost : 12/6/2019 12:51:16 PM Get-VMHost VMHost with name 'XXXXXXXXXXXXXX' was not found using the specified filter(s).

Also, both the machine with powershell 5 and powershell 6 only get this issues on one vCenter. With the other four vCenters there are no problems running these commands.

[LucD]

Is that a vCenter that you renamed or changed the IP?

In any case, I would suggest to open a SR