zjffdu commented on issue #3498: [ZEPPELIN-4409] Set spark.app.name to know which user is running which notebook URL: https://github.com/apache/zeppelin/pull/3498#issuecomment-562011749 > If `spark.app.name` is already set, should we leave it as it is or add username and note id also ? if we leave it, all users and notes shall still have the same name, i don't think that's what we want to see. So I think the logic here could be like this: > > 1. if `spark.app.name` is not set or set to blank, we set it to `Zeppelin_` + `interpreter_name` + `username` + `noteId`, and `interpreter_name` is actually `spark`, so it is `Zeppelin_spark_` + `username` + `noteId`. > 2. if `spark.app.name` is already set to a string, noted by `APP_NAME`, in this case, we set it to `APP_NAME` + `username` + `noteId`. > @zjffdu 1. We could use `Zeppelin_` + interpreter_group_name which may contains note id and user name which depends on the interpreter mode. (See https://github.com/apache/zeppelin/blob/master/zeppelin-zengine/src/main/java/org/apache/zeppelin/interpreter/InterpreterSetting.java#L422) 2. I think it is fine to leave `spark.app.name` as what it is set when user set it explicitly.
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