oulenz commented on issue #23715: [SPARK-26803][PYTHON] Add sbin subdirectory to pyspark URL: https://github.com/apache/spark/pull/23715#issuecomment-459525141 The history server is useful in local mode as well. When you start out, you typically don't have a cluster to experiment on. And you don't know whether you're writing spark jobs correctly, so you want to look at how they are executed. And for that you need the history server, because the regular Spark ui disappears as soon as your job is finished. Frankly, I don't know how else users are supposed to gain an understanding of what they are doing.
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