Github user Leemoonsoo commented on the pull request: https://github.com/apache/zeppelin/commit/300f7532342d1ea47b85d3b777a8797a3e2248d4#commitcomment-21096395 In zeppelin-zengine/src/main/java/org/apache/zeppelin/helium/HeliumVisualizationFactory.java: In zeppelin-zengine/src/main/java/org/apache/zeppelin/helium/HeliumVisualizationFactory.java on line 94: Two related issues i'm aware of. If you think you need, please feel free to create. https://issues.apache.org/jira/browse/ZEPPELIN-2152 https://issues.apache.org/jira/browse/ZEPPELIN-2094 If `$http_proxy` and `$https_proxy` very common, i think it make sense use them instead of make one like `$ZEPPELIN_HTTP_PROXY`. And there's one more feature that needs proxy support. Which is dependency loader. https://issues.apache.org/jira/browse/ZEPPELIN-169 Once we decide the variable name, then dependency loader can use the same variable to configure proxy.
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