Gracefully handle missing default values for num_failed
Gracefully handle missing default values for num_failed

dropbox/changes,wfxiang08/changes,wfxiang08/changes,wfxiang08/changes,dropbox/changes,bowlofstew/changes,dropbox/changes,dropbox/changes,bowlofstew/changes,wfxiang08/changes,bowlofstew/changes,bowlofstew/changes