[GitHub] [zeppelin] redsk opened a new pull request #3431: [ZEPPELIN-2680] Allow opening notebook as a reader

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redsk opened a new pull request #3431: [ZEPPELIN-2680] Allow opening notebook as a reader
URL: https://github.com/apache/zeppelin/pull/3431
 
 
   What is this PR for?
   --------------------
   
   When users only have reader permissions over a notebook AND the notebook
   contains a chart, the app sends a COMMIT_PARAGRAPH for each paragraph,
   which causes a write permission popup to show
   ("Insufficient privileges to write note").
   
   Ths issue is with function commitParagraphResult in `result.controller.js`.
   
   The original [fix](https://github.com/apache/zeppelin/pull/2439)
   introduced a nasty bug that dramatically increased CPU usage and was never
   merged.
   
   This PR fixes the bug. It also automatically switches to `report` mode
   as it is pointless to show UI features that the user is not allowed
   to control.
   
   What type of PR is it?
   ----------------------
   Bug Fix
   
   What is the Jira issue?
   -----------------------
   [ZEPPELIN-2680](https://issues.apache.org/jira/browse/ZEPPELIN-2680)
   
   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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