We have some scripts that create scheduled jobs using PowerShell as part of our application. When testing them recently, I noticed that some of them always failed immediately, and no output is ever produced (they don't even appear in the Get-Job list).
After many days of tweaking, we've managed to isolate it to any jobs that are set to run weekly. Below is a script that creates two jobs that do exactly the same thing. When we run this on our domain, and provide credentials of a domain user, then force both jobs to run in the Task Scheduler GUI (right-click - Run), the daily one runs fine (0x0 result) and the weekly one fails (0x41306).
Note: If I don't provide the -Credential param, both jobs work fine. The jobs only fail if the task is both weekly, and running as this domain user.
I can't find information on why this is happening, nor think of any reason it would behave differently for weekly jobs. The "History£ tab in the Task Scheduler has almost no useful information, just "Task stopping due to user request" and "Task terminated", both of which have no useful info:
Task Scheduler terminated "{eabba479-f8fc-4f0e-bf5e-053dfbfe9f62}"
instance of the "\Microsoft\Windows\PowerShell\ScheduledJobs\Test1"
task. Task Scheduler stopped instance
"{eabba479-f8fc-4f0e-bf5e-053dfbfe9f62}" of task
"\Microsoft\Windows\PowerShell\ScheduledJobs\Test1" as request by
user "MyDomain\SomeUser" .
What's up with this? Why do weekly tasks run differently, and how can I diganose this issue?
This is PowerShell v3 on Windows Server 2008 R2. I've been unable to reproduce this locally, but I don't have a user set up in the same way as the one in our production domain (I'm working on this, but I wanted to post this ASAP in the hope someone knows what's happening!).
Import-Module PSScheduledJob
$Action =
{
"Executing job!"
}
$cred = Get-Credential "MyDomain\SomeUser"
# Remove previous versions (to allow re-running this script)
Get-ScheduledJob Test1 | Unregister-ScheduledJob
Get-ScheduledJob Test2 | Unregister-ScheduledJob
# Create two identical jobs, with different triggers
Register-ScheduledJob "Test1" -ScriptBlock $Action -Credential $cred -Trigger (New-JobTrigger -Weekly -At 1:25am -DaysOfWeek Sunday)
Register-ScheduledJob "Test2" -ScriptBlock $Action -Credential $cred -Trigger (New-JobTrigger -Daily -At 1:25am)
