happyhua commented on issue #23827: [SPARK-26912][CORE][HISTORY] Allow setting permission for event_log URL: https://github.com/apache/spark/pull/23827#issuecomment-472508692 First of all, not everyone uses Hadoop hdfs. In our scenario, we submit every sprark job from Zeppelin, call it a zeppelin user. And start both Spark master and Spark history user from a user called spark. Now the history server access cannot access the event files due to the file permission. So tell me in which cases a history server should not have access to the event files. I believe start history server as a root user would be a security issue.
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