HBASE_CACHE_BLOCKS Query Option
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 RegionServer, in conjunction with the HBASE_CACHING
query option.
Type: Boolean; recognized values are 1 and 0, or true
and false
; any other value interpreted as false
Default: false
(shown as 0 in output of SET
statement)
Related information:
Using Impala to Query HBase Tables, HBASE_CACHING Query Option
Parent topic: Query Options for the SET Statement