Confluence 6.6.2 to 6.9.0 fails with unable to shutdown error

[msimonelli]

When running the Confluence 6.9.0 installer to upgrade from 6.6.2 the upgrade fails with a message that Confluence failed to shutdown, and that I need to shut it down manually.  I followed the instructions to shut it down manually but I still get the same error. 

netstat -ona | findstr ":8090" 
netstat -ona | findstr ":8091"

both show no processes after manual shutdown, and services.msc shows Confluence as being stopped, yet the installer insists Confluence is still running.

I am trying to perform this upgrade prior to migrating from the embedded database to a MySQL server.

[Vickey Palzor Lepcha]

Try checking for java processes running just to be sure;

ps -ef | grep java

See if that shows any confluence pid.