1. Set Environment Variables
$ export HADOOP_CONF_DIR=/hadoop/hadoop-2.7XX/etc/hadoop
$ export HADOOP_HOME=/hadoop/hadoop-2.7XX
$ export SPARK_HOME=/hadoop/spark-2.4.0-bin-hadoop2.7
$ hds=(`cat ${HADOOP_CONF_DIR}/slaves` 'namenode1' 'namenode2')
2. yarn configuration file
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bakup yarn-site.xml
$ for i in ${hds[@]} ; do echo $i ; ssh $i "cp ${HADOOP_CONF_DIR}/yarn-site.xml ${HADOOP_CONF_DIR}/yarn-site.xml.pre_spark_shuffle.bak" ; done; $ for i in ${hds[@]} ; do echo $i ; ssh $i "ls ${HADOOP_CONF_DIR} | grep pre_spark_shuffle.bak" ; done;
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modify yarn-site.xml
$ more ${HADOOP_CONF_DIR}/yarn-site.xml | grep -B 1 -A 2 "aux-services"
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output
<property> <name>yarn.nodemanager.aux-services</name> <value>mapreduce_shuffle,spark_shuffle</value> </property> <property> <name>yarn.nodemanager.aux-services.spark_shuffle.class</name> <value>org.apache.spark.network.yarn.YarnShuffleService</value> </property>
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broadcast yarn-site.xml
$ for i in ${hds[@]} ; do echo $i ; scp ${HADOOP_CONF_DIR}/yarn-site.xml ${i}:${HADOOP_CONF_DIR}/ ; done ; $ for i in ${hds[@]} ; do echo $i ; ssh $i "cat ${HADOOP_CONF_DIR}/yarn-site.xml | grep -B 1 -A 2 'aux-services' " ; done ;
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Check heapsize
$ more ${HADOOP_CONF_DIR}/yarn-env.sh | grep "YARN_HEAPSIZE"
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output
YARN_HEAPSIZE=2000 # 根据实际情况调整
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check yarn class path
$ more ${HADOOP_CONF_DIR}/yarn-site.xml | grep "yarn.application.classpath" # if finds nothing , we can use default path $HADOOP_HOME/share/hadoop/yarn/
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check yarn shuffle jar
$ find ${SPARK_HOME} -iname "*yarn-shuffle.jar" # get result : spark-2.4.0-yarn-shuffle.jar
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copy yarn shuffle jar
$ for i in ${hds[@]} ; do echo $i ; scp `find ${SPARK_HOME} -iname "*yarn-shuffle.jar"` ${i}:$HADOOP_HOME/share/hadoop/yarn/ ; done ; $ for i in ${hds[@]} ; do echo $i ; ll -ltr $HADOOP_HOME/share/hadoop/yarn/ | grep shuffle ; done ;
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Restart yarn
$ bash $HADOOP_HOME/sbin/stop-yarn.sh $ bash $HADOOP_HOME/sbin/start-yarn.sh
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check application
$ for i in ${hds[@]} ; do echo $i ; ssh $i ". /etc/profile ; jps" | grep -i manager ; done;
Reproduced in: https: //www.jianshu.com/p/d2b97ce16e89