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08-23-2015
10:11 AM
These two default parametes doesnt make sense for me. yarn.nodemanager.resource.cpu-vcores: the total available cores for all containers. "Number of CPU cores that can be allocated for containers." yarn.scheduler.maximum-allocation-vcores: the maximum number of cores that a container can request. "The maximum allocation for every container request at the RM, in terms of virtual CPU cores. Requests higher than this won't take effect, and will get capped to this value." So if I have only 8 cores available for all containers how can the AM request a 32 core container? These two default parameters must bem at least the same, or the yarn.scheduler.maximum-allocation-vcores less than yarn.nodemanager.resource.cpu-vcores. Am i rigth?
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Apache YARN