When Region Servers are co-located with Datanodes, you can utilize short circuit read feature. See 12.11.2 of http://hbase.apache.org/book.html#perf.hdfs
Factors to consider co-location include the allocation of memory of server - so that region server and Data node can have ample memory to fulfill their tasks. Cheers On Mon, Apr 14, 2014 at 8:59 PM, Shashidhar Rao <[email protected]>wrote: > Hi, > > Please somebody clarify how hadoop and hbase are both used in real > production environment. > > Do the Region Servers of Hbase can be installed in Hadoop Datanodes or > Region servers are separated from Hadoop data nodes in multiple clusters. > > I know it's Hbase centric but still if someone has experienced in real > production environment please share your experiences. > > Regards > Shashidhar >
