Why does the civicrm upgrade stop after each step of the upgrade eg at 4.7.19 then again at 4.7.20
As per the code, retry and skip seems to be shown with the value set for debug. Note Enable Debugging if it is turned on/off on Administer-&gt; System Settings -&gt; Debugging and Error Handling.

Need to confirm this on another upgrade I do, but for now, it seems retry and skip would show up if debugging is enabled and the upgrade would progress only after Retry button is clicked. So for continuous upgrade, one should have debug set to No?