1.

___________ is used to decommission more than one RegionServer at a time by creating sub-znodes.(a) /hbase/master(b) /hbase/draining(c) /hbase/passive(d) None of the mentionedThe question was asked by my college professor while I was bunking the class.My doubt is from The ZooKeeper Service topic in chapter ZooKeeper, Sqoop and Cassandra of Hadoop

Answer»

The CORRECT CHOICE is (b) /hbase/draining

The best I can explain: /hbase/draining lets you decommission multiple REGIONSERVERS without having the risk of regions temporarily moved to a RegionServer that will be decommissioned later.



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