Question

我需要为AWS EMR集群创建边缘节点（ec2）。为实现这一目标，我可以遵循一系列步骤吗？

Answer 1

以root身份在EC2-Instance（边缘节点）上运行以下命令

mkdir -p /usr/lib/spark
mkdir -p /usr/lib/hive-webhcat/share/hcatalog
vi  /etc/profile.d/spark.sh
    export SPARK_HOME=/usr/lib/spark
    export PATH=$SPARK_HOME/bin:$PATH
    export HADOOP_CONF_DIR=/etc/hadoop/conf
export SPARK_CONF_DIR=/etc/spark/conf

source /etc/profile.d/spark.sh
mkdir -p /etc/hadoop/conf
chown -R kylo:kylo /etc/hadoop/conf
mkdir -p /etc/spark/conf
chown -R kylo:kylo /etc/spark/conf
mkdir -p /usr/share/aws /usr/lib/sqoop /usr/lib/hadoop-yarn /usr/lib/hadoop-mapreduce /usr/lib/hadoop-hdfs /usr/lib/hadoop
chown kylo:kylo /usr/share/aws /usr/lib/sqoop /usr/lib/hadoop-yarn /usr/lib/hadoop-mapreduce /usr/lib/hadoop-hdfs /usr/lib/hadoop

export MASTER_PRIVATE_IP=<MASTER_NODE_IP_ADDRESS>
export PEM_FILE=/home/centos/.ssh/id_rsa
scp -i $PEM_FILE hadoop@$MASTER_PRIVATE_IP:/etc/hadoop/conf/core-site.xml /etc/hadoop/conf
scp -i $PEM_FILE hadoop@$MASTER_PRIVATE_IP:/etc/hadoop/conf/yarn-site.xml /etc/hadoop/conf
scp -i $PEM_FILE hadoop@$MASTER_PRIVATE_IP:/etc/hadoop/conf/hdfs-site.xml /etc/hadoop/conf
scp -i $PEM_FILE hadoop@$MASTER_PRIVATE_IP:/etc/hadoop/conf/mapred-site.xml /etc/hadoop/conf

rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/spark/*' /usr/lib/spark
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/sqoop/*' /usr/lib/sqoop
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/hadoop/*' /usr/lib/hadoop
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/hadoop-yarn/*' /usr/lib/hadoop-yarn
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/hadoop-mapreduce/*' /usr/lib/hadoop-mapreduce
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/lib/hadoop-hdfs/*' /usr/lib/hadoop-hdfs
rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/usr/share/aws/*' /usr/share/aws

rsync -avz --delete -e "ssh -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE" hadoop@$MASTER_PRIVATE_IP:'/etc/spark/conf/*' /etc/spark/conf

echo "spark.hadoop.yarn.timeline-service.enabled false" >> /etc/spark/conf/spark-defaults.conf

由于版本可能不同，您可能需要在主节点上对该文件进行ls

scp -o StrictHostKeyChecking=no -o ServerAliveInterval=10 -i $PEM_FILE hadoop@$MASTER_PRIVATE_IP:/usr/lib/hive-hcatalog/share/hcatalog/hive-hcatalog-core-2.3.3-amzn-1.jar /usr/lib/hive-webhcat/share/hcatalog/hive-hcatalog-core.jar

您应该验证JAR路径

ls /usr/lib/spark/examples/jars/spark-examples_ <HIT TAB>
spark-submit --class org.apache.spark.examples.SparkPi --master yarn --driver-memory 512m --executor-memory 512m --executor-cores 1 /usr/lib/spark/examples/jars/spark-examples_2.11-2.3.1.jar 10

检查Yarn界面以确认是否成功

http://<MASTER_NODE>:8088/cluster

为aws emr创建边缘节点的步骤

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