nicknezis opened a new issue #3610:
URL: https://github.com/apache/incubator-heron/issues/3610


   **Describe the bug**
   If the Helm chart is used to install Heron with Zookeeper running in a 
clustered quorum, the Bookkeeper cluster does not initialize properly. This 
seems to be due to the Zookeeper pods each coming up in Standalone mode. I 
believe the Kubernetes yamls and config generation script needs to be updated 
to leverage the k8s DNS information for the headless service.
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. `helm install` using `zkReplicas=3`
   2. Bookkeeper pods will not all initialize properly
   3. Attempt to submit a Heron topology. This usually fails to upload to 
Bookkeeper
   
   **Expected behavior**
   Zookeeper should launch and reach quorum
   
   **Additional context**
   The Minikube and static Kubernetes YAMLs seem to set the ZOOKEEPER_SERVERS 
environment variable, but this is not set in the Helm chart yamls.
   The Zookeeper version was also recently updated to 3.5.8. We need to verify 
that the generated config file still looks as it did in 3.4.X.
   


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