object SparkRackResolver extends Logging
Utility to resolve the rack for hosts in an efficient manner. It will cache the rack for individual hosts to avoid repeatedly performing the same expensive lookup.
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- def get(conf: Configuration): SparkRackResolver
It will return the static resolver instance.
It will return the static resolver instance. If there is already an instance, the passed conf is entirely ignored. If there is not a shared instance, it will create one with the given conf.
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