In a large scale cluster, we may rolling upgrade BEs, this patch add a column named 'Version' for command 'show backends;', as well as website '/system?path=//backends', to provide a method to check whether there is any BE missing upgraded.
In a large scale cluster, we may rolling upgrade BEs, this patch add a column named 'Version' for command 'show backends;', as well as website '/system?path=//backends', to provide a method to check whether there is any BE missing upgraded.