While performing upgrade, sometime SharePoint got stuck and continously log message “Sleeping for 10 seconds…” in Upgrade.Log . To solve this issue, just perform following two steps
- End the task psconfig.exe,if it is running, from task manager.
- From command prompt, execute the following command psconfig -cmd upgrade -inplace b2b -wait -force
- Wait to complete the upgrade. Once done, just browse your SharePoint site as usual, it will be back again:)