BUG-14461: Knox has Kerberos config at the global level rather than cluster topology level.
Problem: The gateway.hadoop.kerberos.secured=false Boolean flag indicates whether the Hadoop cluster protected by Gateway is secured with Kerberos in gateway-site.xml.
BUG-16592: Oozie only supported on HDP for Linux multi-node clusters
Problem: When accessing a Hadoop cluster through an Apache Knox Gateway, Oozie is not supported for HDP for Windows or HDP for Linux single-node clusters.
Workaround: Only use Oozie when access a multinode HDP for Linux cluster.
