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 RegionServer, in conjunction with the HBASE_CACHE_BLOCKS query option.

Type: BOOLEAN

Default: 0

Related information:

Using Impala to Query HBase Tables, HBASE_CACHE_BLOCKS Query Option