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