Make it possible to execute operation agains deployment targets in batches of different concurrency. For example, first batch would contain only a few targets and low concurrency, and if it succeeds, the remaining targets would be deployed with greater concurrency.
Make it possible to execute operation agains deployment targets in batches of different concurrency. For example, first batch would contain only a few targets and low concurrency, and if it succeeds, the remaining targets would be deployed with greater concurrency.