In Cloudera v4.6.2, I noticed these two are checked by default.
Standby NameNode Health Check
Backup Masters Health Check
Does this mandates to have a standby namenode and standby hbase master ?
Would it also changes the basic topology from 1(nn)+3(dn) to
1(nn)+3(dn)+1(standby nn+hbase master) ?!
Thanking you, in advance.