我有一个处理1.4Tb数据的MapReduce作业。执行此操作时，出现如下错误。拆分数为6444。在开始工作之前，我设置了以下设置:conf.set("mapreduce.map.memory.mb","8192");conf.set("mapreduce.reduce.memory.mb","8192");conf.set("mapreduce.map.java.opts.max.heap","8192");conf.set("mapreduce.map.java.opts","-Xmx8192m");conf.set("mapreduce.reduce.java.opts","-X