*https://drill.apache.org/docs/configuring-resources-for-a-shared-drillbit/#configuring-query-queuing <https://drill.apache.org/docs/configuring-resources-for-a-shared-drillbit/#configuring-query-queuing>*
*On this page, on the setting planner.width.max_per_node it says the below. In the equation, of number of active drillbits * number of cores per node * 0.7, is the number of active drillbits the number of drill bits PER NODE (as this setting is per node) or is that the number of active drill bits per cluster? The example is unclear because it only shows an example on a single node cluster. (Typically 1 per node doesn't clarify whether that number should be per node or per drill bit)* *Thanks!* The maximum width per node defines the maximum degree of parallelism for any fragment of a query, but the setting applies at the level of a single node in the cluster. The *default* maximum degree of parallelism per node is calculated as follows, with the theoretical maximum automatically scaled back (and rounded down) so that only 70% of the actual available capacity is taken into account: number of active drillbits (typically one per node) * number of cores per node * 0.7 For example, on a single-node test system with 2 cores and hyper-threading enabled: 1 * 4 * 0.7 = 3
