Using Spark-shell to connect to external Hive, the following error occurs:

[diao@hadoop111 spark-2.1.1]$ bin/spark-shell 
19/08/13 14:15:52 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
19/08/13 14:15:57 WARN HiveConf: HiveConf of name hive.conf.hidden.list does not exist
19/08/13 14:15:59 WARN HiveConf: HiveConf of name hive.conf.hidden.list does not exist
java.lang.IllegalArgumentException: Error while instantiating 'org.apache.spark.sql.hive.HiveSessionState':
  at org.apache.spark.sql.SparkSession$.org$apache$spark$sql$SparkSession$$reflect(SparkSession.scala:981)
  at org.apache.spark.sql.SparkSession.sessionState$lzycompute(SparkSession.scala:110)
  at org.apache.spark.sql.SparkSession.sessionState(SparkSession.scala:109)
  at org.apache.spark.sql.SparkSession$Builder$$anonfun$getOrCreate$5.apply(SparkSession.scala:878)
  at org.apache.spark.sql.SparkSession$Builder$$anonfun$getOrCreate$5.apply(SparkSession.scala:878)
  at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
  at scala.collection.mutable.HashMap$$anonfun$foreach$1.apply(HashMap.scala:99)
  at scala.collection.mutable.HashTable$class.foreachEntry(HashTable.scala:230)
  at scala.collection.mutable.HashMap.foreachEntry(HashMap.scala:40)
  at scala.collection.mutable.HashMap.foreach(HashMap.scala:99)
  at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:878)
  at org.apache.spark.repl.Main$.createSparkSession(Main.scala:96)
  ... 47 elided
Caused by: java.lang.reflect.InvocationTargetException: java.lang.IllegalArgumentException: Error while instantiating 'org.apache.spark.sql.hive.HiveExternalCatalog':
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
  at org.apache.spark.sql.SparkSession$.org$apache$spark$sql$SparkSession$$reflect(SparkSession.scala:978)
  ... 58 more
Caused by: java.lang.IllegalArgumentException: Error while instantiating 'org.apache.spark.sql.hive.HiveExternalCatalog':
  at org.apache.spark.sql.internal.SharedState$.org$apache$spark$sql$internal$SharedState$$reflect(SharedState.scala:169)
  at org.apache.spark.sql.internal.SharedState.<init>(SharedState.scala:86)
  at org.apache.spark.sql.SparkSession$$anonfun$sharedState$1.apply(SparkSession.scala:101)
  at org.apache.spark.sql.SparkSession$$anonfun$sharedState$1.apply(SparkSession.scala:101)
  at scala.Option.getOrElse(Option.scala:121)
  at org.apache.spark.sql.SparkSession.sharedState$lzycompute(SparkSession.scala:101)
  at org.apache.spark.sql.SparkSession.sharedState(SparkSession.scala:100)
  at org.apache.spark.sql.internal.SessionState.<init>(SessionState.scala:157)
  at org.apache.spark.sql.hive.HiveSessionState.<init>(HiveSessionState.scala:32)
  ... 63 more
Caused by: java.lang.reflect.InvocationTargetException: java.lang.reflect.InvocationTargetException: java.lang.RuntimeException: java.lang.RuntimeException: The root scratch dir: /opt/modules/hive on HDFS should be writable. Current permissions are: rwxrwxr-x
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
  at org.apache.spark.sql.internal.SharedState$.org$apache$spark$sql$internal$SharedState$$reflect(SharedState.scala:166)
  ... 71 more

Modify the Hive-site.xml file
Prefixes the value with HDFS :// hadoOP111:8020

<property>
    <name>hive.exec.scratchdir</name>
    <value>hdfs://hadoop111:8020/opt/moules/hive</value>
  </property>

It will run successfully after modification

[diao@hadoop111 spark-2.1.1]$ bin/spark-shell 
19/08/13 14:22:32 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
19/08/13 14:22:38 WARN HiveConf: HiveConf of name hive.conf.hidden.list does not exist
19/08/13 14:22:40 WARN HiveConf: HiveConf of name hive.conf.hidden.list does not exist
19/08/13 14:22:42 WARN ObjectStore: Failed to get database global_temp, returning NoSuchObjectException
Spark context Web UI available at http://192.168.253.111:4040
Spark context available as 'sc' (master = spark://hadoop111:7077, app id = app-20190813142233-0003).
Spark session available as 'spark'.
Welcome to
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   /___/ .__/\_,_/_/ /_/\_\   version 2.1.1
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Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_202)
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