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Posted to dev@zeppelin.apache.org by "rickcheng (Jira)" <ji...@apache.org> on 2021/07/21 10:00:00 UTC

[jira] [Created] (ZEPPELIN-5465) "SERVICE_DOMAIN" may be null while Zeppelin server is running outside k8s

rickcheng created ZEPPELIN-5465:
-----------------------------------

             Summary: "SERVICE_DOMAIN" may be null while Zeppelin server is running outside k8s
                 Key: ZEPPELIN-5465
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-5465
             Project: Zeppelin
          Issue Type: Improvement
          Components: Kubernetes
    Affects Versions: 0.9.0
            Reporter: rickcheng
            Assignee: rickcheng


The function `sparkUiWebUrlFromTemplate` needs to use the variable "SERVICE_DOMAIN", which is assigned to the default value of system environment variable "SERVICE_DOMAIN".

However, user may not set the environment variable when Zeppelin server is running outside of k8s, and it will get a *NullPointerExcepetion*:
{code:java}
NullPointerException: null value in entry: SERVICE_DOMAIN=null
{code}


Maybe it is better to set a non-null default value for it.



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