Dear all -- despite RTFM-ing, it's still not absolutely clear to me -- is there _any_ way to restrict a shell action to run on a specific node?
It appears that JobTracker and NameNode are the only relevant config parameters available to a shell action -- so the play here would be to stand up a one-node cluster on that node if it is imperative to run jobs on that specific instance, right?.. However, if using ssh action it appears that it is possible to dispatch it to a specific host precisely using USER@HOST directive in the <host/> parameter of the ssh action… Does this about sum it up? Cheers, and thanks!
