Web Cmdlets test intermittently fail with WebListener timeout

I've seen this a few times.

Steps to reproduce

Run Windows CI Tests

Expected behavior

No failures

Actual behavior

https://ci.appveyor.com/project/PowerShell/powershell/build/6.0.0-7706#L2212

Describing Web cmdlets tests using the cmdlet's aliases
 [-] Error occurred in Describe block 15.39s
   WebListener did not start before the timeout was reached.
   At C:\projects\powershell\test\tools\Modules\WebListener\WebListener.psm1:91 char:13
Describing Write-Debug tests
+

Environment data

> $PSVersionTable
in 6.0.1 branch

Mark Kraus (@markekraus)

/cc Mark Kraus (@markekraus)

I have seen this before a few times, but I can never reproduce it when I try. The only way I see we can get to the bottom if it is to add super verbose failure messages and then reviewing the output when it does fail.

Maybe CI very slow and we should wait more? What is timeout for the start?

15 seconds

PowerShell/test/tools/Modules/WebListener/WebListener.psm1

Line 58 in 44793e3

$initTimeoutSeconds = 15

We could increase the timeout and get anything useful to $initStatus.

Also we check a real time with Get-Date. But if VM sleeps long time the real time loses a value. I think it is more reliably count 100ms intervals in the cycle.

But if VM sleeps long time the real time loses a value.

what?

as for $initstatus.. $Job | Stop-Job -PassThru | Receive-Job should b dumping anything that would be in it in the catch block.

But if VM sleeps long time the real time loses a value.
what?

We get $timeOut = (get-date).AddSeconds($initTimeoutSeconds). Then VM sleeps 30 seconds. Then it run and we check (get-date) -lt $timeOut) - we already expire although we worked only 100 ms!

Then VM sleep 30 seconds.

what?

I mean, CI farm can be very busy and VM can be put in a pause.

so something like

$sleepMilliseconds = 100
$sleepCount = $initTimeoutSeconds * 1000 / $sleepMilliseconds
do {
    Start-Sleep -Milliseconds $sleepMilliseconds
    $initStatus = $Job.ChildJobs[0].Output | Out-String
    $isRunning = $initStatus -match $initCompleteMessage
    $sleepCount--
}
while (-not $isRunning -and $sleepCount -gt 0)

Yes. If CI VM really slow-slow this help.

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Web Cmdlets test intermittently fail with WebListener timeout #6001

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Web Cmdlets test intermittently fail with WebListener timeout #6001

Description

Steps to reproduce

Expected behavior

Actual behavior

Environment data

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iSazonov commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

markekraus commented on Jan 24, 2018

iSazonov commented on Jan 24, 2018

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