Ambari installer not setting ZK environment variables

Tried it again. I was able to build Trafodion but not installed it through Ambari installer.
Trafodion was unable to start:

2017-04-04 23:33:42,919, FATAL, MON, Node Number: 0,, PIN: 29309 , Process Name: $MONITOR,,, TID: 29309, Message ID: 101022301, [CMonitor::CreateZookeeperClient], Zookeeper quorum port is not defined!

As part of installation, two envvars need to be setup:

export ZOOKEEPER_NODES
export ZOOKEEPER_PORT

It looks like these envvars are not being setup correctly.