spark-shell启动报错：Yarn application has already ended! It might have been killed or unable to launch...

前半部分转自：https://www.cnblogs.com/tibit/p/7337045.html （后半原创） spark-shell不支持yarn cluster，以yarn client方式启动 spark-shell --master=yarn --deploy-mode=client 启动日志，错误信息如下   其中“Neither spark.yarn.jars nor spark

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