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For the sake of simplicity and narrowing down the scope, the declarative scheduler will ignore any resource specifications. In the future when having different resource profiles to fulfil, it will be the task of the ResourceManager to make sure that different resource requirements are fulfilled equally well.
Non-zero downtime rescaling
Rescaling happens through restarting the job, thus jobs with large state might need a lot of resources and time to rescale. Rescaling a job causes downtime of your job, but no data loss.
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