Deena Venkatesan

Attaching controller logs [controller-logs.zip](https://github.com/pravega/pravega-operator/files/3003000/controller-logs.zip)

@adrianmo I was running pravega-longevity `medium-scale` workload on my cluster using ``` ./tools/longevity_tests.py --image-repository=devops-repo.isus.emc.com:8116/ pravega-longevity --image-tag=18.ed0bc5e-0.5.0-2151.2e8f0b7 --controller-uri tcp://10.100.200.126:9090 --test=medium-scale deploy ```

@adrianmo It seems `pravega-longevity` does not work with Controller service name as `--controller-uri`. It's throwing `Name resolver io.pravega.client.stream.impl.ControllerResolverFactory$ControllerNameResolver@3f5a124d returned an empty list` exception and not starting IO's. ``` Exception in...