get-taskplus failed against standalone host?

[binoche]

Dear LucD,

thanks for your great get-taskplus, it works well against virtual center,

but failed repeatedly against standalone host vSphere 6.5,

PowerCLI C:\> $si = Get-View ServiceInstance

PowerCLI C:\> $tskMgr = Get-View $si.Content.TaskManager

PowerCLI C:\> $filter = New-Object VMware.Vim.TaskFilterSpec

PowerCLI C:\> $tCollector = Get-View ($tskMgr.CreateCollectorForTasks($filter))

Exception calling "CreateCollectorForTasks" with "1" argument(s): "The operation is not supported on the object."

At line:1 char:1

+ $tCollector = Get-View ($tskMgr.CreateCollectorForTasks($filter))

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

    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException

    + FullyQualifiedErrorId : VimException

PowerCLI C:\>

looks like $filter not correct? do you know how to fix it? thanks

[LucD]

Are you referring this Get-TaskPlus?

If yes, you have to read in the complete function first.

Easiest is to place it in a .ps1 file, then execute the .ps1.

Once you have the function "known" to the PS engine, you can call the function.

See the Sample Usage section in that same post.

[binoche]

yes , get-taskplus failed due to similar error, so I tried to custom $filter myself, sorry for any confusion

PowerCLI C:\> Get-TaskPlus

Exception calling "CreateCollectorForTasks" with "1" argument(s): "The operation is not supported on the object."

At line:155 char:7

+       $tCollector = Get-View ($tskMgr.CreateCollectorForTasks($filter ...

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

    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException

    + FullyQualifiedErrorId : VimException

You cannot call a method on a null-valued expression.

At line:158 char:9

+         $tCollector.ResetCollector()

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

    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException

    + FullyQualifiedErrorId : InvokeMethodOnNull

You cannot call a method on a null-valued expression.

At line:165 char:9

+         $tasks = $taskReadOp.Invoke($WindowSize)

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

    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException

    + FullyQualifiedErrorId : InvokeMethodOnNull

PowerCLI C:\>

[LucD]

I overlooked that you mentioned a standalone ESXi node.

Afaik the HistoryCollector is not supported on an ESXi node, only on a vCenter.

[binoche]

thanks LucD, when logged into the standalone host ui and I can see its history tasks, so I am wondering maybe I did not use the api correctly?

[LucD · Accepted solution]

What you are seeing there are the recent task.

$si = Get-View ServiceInstance

$taskMgr = Get-View -Id $si.Content.TaskManager

Get-View -Id $taskMgr.RecentTask

But those are limited in time.

What doesn't exist on a stand-alone ESXi node is a TaskHistoryCollector.

In the vCenter you can specify how long the system should keep Tasks and Events, and you can't do this on a standalone ESXi node.

The first one is accessible through the TaskHistoryCollector, the 2nd one is the RecentTask from above.

[binoche]

I see, thanks