stczwd commented on issue #23827: [SPARK-26912][CORE][HISTORY] Allow setting permission for event_log URL: https://github.com/apache/spark/pull/23827#issuecomment-467684934 > Yes, and that scenarios is covered by my previous explanation, is it not? We deploy it that way and don't need to change the event log permissions. The SHS can read all the log files just fine. In your explanation, the SHS need use group identify to read event_logs, and user are all belong to this groups. Then how would SHS read event_log when the users are belong to multi groups and SHS user won't have the same group with the users? If we put users in one group, it would make spark's output data visible to all users. It is detrimental to data security and data privacy.
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