zjffdu opened a new pull request #3333: [ZEPPELIN-4053]. Implement impersonation via c native api URL: https://github.com/apache/zeppelin/pull/3333 ### What is this PR for? This PR use a native c code to implement impersonation. The previous approach use ssh which require user to enable password-less for each user. While this approach is much easier for user. zeppelin admin only needs to compile this c code it to enable impersonation. ### What type of PR is it? [Improvement | Feature | Documentation ] ### Todos * [ ] - Task ### What is the Jira issue? * Open an issue on Jira https://issues.apache.org/jira/browse/ZEPPELIN/ * Put link here, and add [ZEPPELIN-*Jira number*] in PR title, eg. [ZEPPELIN-533] ### How should this be tested? * Tested manually on shell, spark and python interpreter ### Screenshots (if appropriate)  ### Questions: * Does the licenses files need update? No * Is there breaking changes for older versions? No * Does this needs documentation? No
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