This is the documentation for Cloudera Impala 2.0.x.
Documentation for other versions is available at Cloudera.com.

HBASE_CACHING

Setting this option is equivalent to calling the setCaching method of the class org.apache.hadoop.hbase.client.Scan, in an HBase Java application. Helps to control the memory pressure on the HBase region server, in conjunction with the HBASE_CACHE_BLOCKS query option. See HBASE_CACHE_BLOCKS for details.

Type: BOOLEAN

Default: 0