Hive填坑记1：win10下报The root scratch dir: /tmp/hive on HDFS should be writable

Hive填坑记1：win10下报The root scratch dir: /tmp/hive on HDFS should be writable

    在windows环境下，跑Spark程序，报“tmp/hive”权限不对，用docs命令加上权限，又提示“ChangeFileModeByMask error”，网上没有一个正确的解决方案，几经折腾，最终搞定，经验分享给大家。

    我在window10跑Spark离线任务，抛如下异常：

Exception in thread "main" org.apache.spark.sql.AnalysisException: java.lang.RuntimeException: java.lang.RuntimeException: The root scratch dir: /tmp/hive on HDFS should be writable. Current permissions are: rwxrwx---;
at org.apache.spark.sql.hive.HiveExternalCatalog.withClient(HiveExternalCatalog.scala:106)
at org.apache.spark.sql.hive.HiveExternalCatalog.databaseExists(HiveExternalCatalog.scala:214)
at org.apache.spark.sql.alCatalog$lzycompute(SharedState.scala:114)
at org.apache.spark.sql.alCatalog(SharedState.scala:102)
at org.apache.spark.sql.internal.SharedState.globalTempViewManager$lzycompute(SharedState.scala:141)
at org.apa