The Dreaded "GRAM Job submission failed: The job manager failed to open stderr" Error

The COG will produce the following infamous error

GRAM Job submission failed: The job manager failed to open stderr

if you don't have values in $HOME/.globus/cog.properties set correctly. The "ip" parameter must be set to the real hostname or static IP address of your portal server. That is, it should be something like

ip=123.456.789

You can edit this file by hand, but note it will be overwritten if your rebuild the portal. You should make sure that the <portal.server.ip> value in ogce-portal-only/pom.xml is set correctly.