boolean function ( ) { return false ; }
is task output recovery supported for restarting jobs ? if task output recovery is supported , job restart can be done more efficiently . concode_field_sep PlaceHolder placeHolder concode_field_sep void setupTask concode_elem_sep void abortTask concode_elem_sep void setupJob concode_elem_sep void abortJob concode_elem_sep void commitJob concode_elem_sep void recoverTask concode_elem_sep void cleanupJob concode_elem_sep void commitTask concode_elem_sep boolean needsTaskCommit