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

HBASE_CACHE_BLOCKS

Setting this option is equivalent to calling the setCacheBlocks 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_CACHING query option. See HBASE_CACHING for details.

Type: BOOLEAN

Default: false (shown as 0 in output of SET statement)