The only issue I can see is the way you are writing request_pool, it should be all Caps else it will not set to the specific pool.   Kinldy use impala-shell -k -i hostname:portnum -B -q 'set REQUEST_POOL=pool_name;'   Hope this will resolve the issue.   NOTE: I am considering that the Impala Admission Control is applied and the poolname is the one that is created using Cloudera Manager.  ... View more