我正在尝试以纱线集群模式运行应用程序。shell脚本的设置如下：
spark-submit --class "com.Myclass" \
--num-executors 2 \
--executor-cores 2 \
--master yarn \
--supervise \
--deploy-mode cluster \
../target/ \
此外，我收到以下错误。以下是来自 YARN LOGS APPLICATIONID 的错误详细信息
INFO : org.apache.spark.deploy.yarn.ApplicationMaster - Registered signal handlers for [TERM, HUP, INT]
DEBUG: org.apache.hadoop.util.Shell - Failed to detect a valid hadoop home directory
java.io.IOException: HADOOP_HOME or hadoop.home.dir are not set.
at org.apache.hadoop.util.Shell.checkHadoopHome(Shell.java:307)
at org.apache.hadoop.util.Shell.<clinit>(Shell.java:332)
at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:79)
at org.apache.hadoop.yarn.conf.YarnConfiguration.<clinit>(YarnConfiguration.java:590)
at org.apache.spark.deploy.yarn.YarnSparkHadoopUtil.newConfiguration(YarnSparkHadoopUtil.scala:62)
at org.apache.spark.deploy.SparkHadoopUtil.<init>(SparkHadoopUtil.scala:52)
at org.apache.spark.deploy.yarn.YarnSparkHadoopUtil.<init>(YarnSparkHadoopUtil.scala:47)
我尝试像下面这样修改spark-env.sh，我看到 Hadoop_Home 已记录，但仍然出现上述错误。修改并添加以下条目到spark-env.sh
export HADOOP_HOME="/usr/lib/hadoop"
echo "&&&&&&&&&&&&&&&&&&&&&& HADOOP HOME "
echo …