Cloudera Enterprise 5.15.x | Other versions

NUM_SCANNER_THREADS Query Option

Maximum number of scanner threads (on each node) used for each query. By default, Impala uses as many cores as are available (one thread per core). You might lower this value if queries are using excessive resources on a busy cluster. Impala imposes a maximum value automatically, so a high value has no practical effect.

Type: numeric

Default: 0

Page generated May 18, 2018.