[Give 2.0] Upgrade routine stuck at 0%

[DevinWalker]

Issue Overview

@Benunc has provided us with a database he was unable to upgrade. I was able to reproduce as well:

Expected Behavior

Upgrade routines don't get stuck, ever.

Current Behavior

This upgrade routine is stuck.

Possible Solution

We should provide a way that admins can escape getting stuck like this if it happens. @ravinderk I'd like to discuss with you.

Steps to Reproduce (for bugs)

• I will provide you the duplicator package

[ravinderk]

@DevinWalker
Ajax secure does not work on local by flywheel. Please read this thread http://local.getflywheel.com/community/t/make-https-work-from-locals-localhost/327/3

I am getting this response when doing db upgrade ajax post request.

WP_Error Object
(
    [errors] => Array
        (
            [http_request_failed] => Array
                (
                    [0] => cURL error 7: Failed to connect to collegiateabbey.test port 443: Connection refused
                )

        )

    [error_data] => Array
        (
        )

)

But I added a fix to prevent DB upgrade from running by cron.

@Benunc Can you reproduce this on live staging site with or without SSL.

@DevinWalker @Benunc Cron will work fine now but make sure ajax mus work fine too.

[Benunc]

On a live staging site the update runs as expected.

[DevinWalker]

@ravinderk I think to close this one out then we have to check that Admin AJAX is accessible before allowing to run the upgrade:

Otherwise the site gets stuck updating at 0% and we don't want that to happen.