When spark-shell launch, It has RuntimeException for SimpleUserGroupsMapping - hadoop

Question

I install HDFS, YARN through Ambari and try to deploy spark on yarn.
But When I execute follow script, Spark has error
How to deploy spark on yarn.
Would you mind explaining how to deploy spark on yarn step by step?
I set HADOOP_CONF_DIR, YARN_CONF_DIR in spark-env.sh and spark.master in spark-defaults.conf.
execute script
./bin/spark-shell --master yarn-client
Error
Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.security.SimpleUserGroupsMapping not found
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2106)
at org.apache.hadoop.security.Groups.<init>(Groups.java:70)
at org.apache.hadoop.security.Groups.<init>(Groups.java:66)
at org.apache.hadoop.security.Groups.getUserToGroupsMappingService(Groups.java:280)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:271)
at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:248)
at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:763)
at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:748)
at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:621)
at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2136)
at org.apache.spark.util.Utils$$anonfun$getCurrentUserName$1.apply(Utils.scala:2136)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.util.Utils$.getCurrentUserName(Utils.scala:2136)
at org.apache.spark.SecurityManager.<init>(SecurityManager.scala:214)
at org.apache.spark.repl.SparkIMain.<init>(SparkIMain.scala:118)
at org.apache.spark.repl.SparkILoop$SparkILoopInterpreter.<init>(SparkILoop.scala:187)
at org.apache.spark.repl.SparkILoop.createInterpreter(SparkILoop.scala:217)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply$mcZ$sp(SparkILoop.scala:949)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
at org.apache.spark.repl.SparkILoop$$anonfun$org$apache$spark$repl$SparkILoop$$process$1.apply(SparkILoop.scala:945)
at scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135)
at org.apache.spark.repl.SparkILoop.org$apache$spark$repl$SparkILoop$$process(SparkILoop.scala:945)
at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:1059)
at org.apache.spark.repl.Main$.main(Main.scala:31)
at org.apache.spark.repl.Main.main(Main.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:731)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.hadoop.security.SimpleUserGroupsMapping not found
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2074)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2098)
... 33 more
Caused by: java.lang.ClassNotFoundException: Class org.apache.hadoop.security.SimpleUserGroupsMapping not found
at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:1980)
at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2072)
... 34 more
16/02/19 22:07:20 INFO util.ShutdownHookManager: Shutdown hook called
16/02/19 22:07:20 INFO util.ShutdownHookManager: Deleting directory

Answer 1

Check if the class is present in your hadoop classpath.
find $HADOOP_HOME/* -name *.jar -print |xargs grep "org.apache.hadoop.security.SimpleUserGroupsMapping" -0
if present then check if the class is present in spark distribution
grep "org.apache.hadoop.security.SimpleUserGroupsMapping" $SPARK_HOME/lib/*
If the jar is present in hadoop distribution try copy it to $SPARK_HOME/lib/.
If none of the above works try changing
hadoop.security.group.mapping org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback
in core-site.xml and restart hadoop and spark.