使用spark跑会出现内存溢出的情况，不知道大佬们遇到过没 #37
Description
ExecutorLostFailure (executor 13 exited caused by one of the running tasks) Reason: Container killed by YARN for exceeding memory limits. 20.0 GB of 20 GB physical memory used. Consider boosting spark.yarn.executor.memoryOverhead.