java.lang.IllegalArgumentException: System memory 259522560 must be at least 471859200. Please increase heap size using the --driver-memory option or spark.driver.memory in Spark configuration.
。。。。。。。
原因：
JVM運行內存不足
解決方法：
設置-Xms256m -Xmx1024m 解決
Spark ：【error】System memory 259522560 must be at least 471859200
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java.lang.IllegalArgumentException: System memory 259522560 must be at least 471859200.
異常：System memory 259522560 must be at least 471859200. Please increase heap size using the --driver-mem
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