REQUEST_POOL Query Option
The pool or queue name that queries should be submitted to. Only applies when you enable the Impala admission control feature (CDH 4 or CDH 5; see Admission Control and Query Queuing), or the YARN resource management feature (CDH 5 only; see Integrated Resource Management with YARN). Specifies the name of the pool used by requests from Impala to the resource manager.
Formerly known as YARN_POOL during the CDH 5 beta period. Renamed to reflect that it can be used both with YARN and with the lightweight admission control feature introduced in Impala 1.3.
Default: empty (use the user-to-pool mapping defined by an impalad startup option in the Impala configuration file)
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