Hi Michele It sounds like YARN is running under the linux container executor which is used to provide secure containers or resource isolation (using cgroups). If you don't need these features or if this was enabled accidentally then you can probably fix the problem by unchecking "Always Use Linux Container Executor" in YARN configuration under Cloudera Manager. Or if you do need LCE, then one thing to check is that your local users (e.g. m.giusto) exist on all nodes . Dave
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