Add note on how to set up blockcache so we cache META blocks only and pull in DATA blocks on each access
Add note on where to find direct memory usage in jmx
HBASE-11527 Cluster free memory limit check should consider L2 block cache size also when L2 cache is onheap. (Anoop)
HBASE-11658 Piped commands to hbase shell should return non-zero if shell command failed (Sean Busbey)