Optimizing Apache HBase I/O
You can optimize HBase I/O using several ways. Two HBase key concepts that helps you in the process are BlockCache and MemStore tuning.
The information in this section is oriented toward basic BlockCache and MemStore tuning. As such, it describes only a subset of cache configuration options. HDP supports additional BlockCache and MemStore properties, as well as other configurable performance optimizations such as remote procedure calls (RPCs), HFile block size settings, and HFile compaction. For a complete list of configurable properties, see the hbase-default.xml source file in GitHub.