解决spark on yarn报错：File /tmp/hadoop-root/nm-local-dir/filecache does not exist

在测试过程中遇到了类似如下的错误：
/tmp/hadoop-root/root为用户名

Application application_xxxxxxxxx_yyyy failed 2 times due to AM Container for application_xxxxxxxxx_yyyy 

exited with exitCode: -1000 due to: java.io.FileNotFoundException: File /tmp/hadoop-root/nm-local-dir/filecache does not exist

在/tmp/hadoop-spark/nm-local-dir路径下创建filecache文件夹即可解决报错问题。

mkdir /tmp/hadoop-root/nm-local-dir/filecache

参考连接：https://www.cnblogs.com/luogankun/p/4191796.html