What policies does YARN/Mesos use to distribute TaskManagers across physical machines?

[black chase]

Hi all,

I had a question when I was reading Flip-6.

When submitting a job, YARN/Mesos ResourceManager needs to spawn, let's say, 5 TaskManagers for the job. Suppose we have 4 physical machines, how would ResourceManager place the 5 TaskManagers across the 4 machines? Does it just follow a Round-Robin fashion?

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