Currently, if you run bootstrapStandby while the first NN is in standby mode, it will spit out an ugly StandbyException with a trace. Instead, it should print an explanation that you should transition the first NN to active before bootstrapping.
|Status||Patch Available [ 10002 ]||Resolved [ 5 ]|
|Hadoop Flags||Reviewed [ 10343 ]|
|Fix Version/s||2.0.0 [ 12320353 ]|
|Resolution||Fixed [ 1 ]|
|Status||Open [ 1 ]||Patch Available [ 10002 ]|