Hadoop CDH5 Spark部署
Spark是一个基于内存计算的开源的集群计算系统,目的是让数据分析更加快速,Spark 是一种与 Hadoop 相似的开源集群计算环境,但是两者之间还存在一些不同之处,这些有用的不同之处使 Spark 在某些工作负载方面表现得更加优越,换句话说,Spark 启用了内存分布数据集,除了能够提供交互式查询外,它还可以优化迭代工作负载。尽管创建 Spark 是为了支持分布式数据集上的迭代作业,但是实际上它是对 Hadoop 的补充,可以在 Hadoop 文件系统中并行运行。CDH5 Spark安装1 Spark的相关软件包spark-core: spark的核心软件包
spark-worker: 管理spark-worker的脚本
spark-master: 管理spark-master的脚本
spark-python: Spark的python客户端2 Spark运行依赖的环境CDH5
JDK3 安装Sparkapt-get install spark-core spark-master spark-worker spark-python4 配置运行Spark (Standalone Mode)
1 Configuring Spark(/etc/spark/conf/spark-env.sh)SPARK_MASTER_IP, to bind the master to a different IP address or hostname
SPARK_MASTER_PORT / SPARK_MASTER_WEBUI_PORT, to use non-default ports
SPARK_WORKER_CORES, to set the number of cores to use on this machine
SPARK_WORKER_MEMORY, to set how much memory to use (for example 1000MB, 2GB)
SPARK_WORKER_PORT / SPARK_WORKER_WEBUI_PORT
SPARK_WORKER_INSTANCE, to set the number of worker processes per node
SPARK_WORKER_DIR, to set the working directory of worker processes 2 Starting, Stopping, and Running Sparkservice spark-master start
service spark-worker start还有一个GUI界面在<master_host>:180805 Running Spark Applications 1 Spark应用有三种运行模式: Standalone mode:默认模式 YARN client mode:提交spark应用到YARN,spark驱动在spark客户端进程上。 YARN cluster mode:提交spark应用到YARN,spark驱动运行在ApplicationMaster上。
2 运行SparkPi在Standalone模式source /etc/spark/conf/spark-env.sh
CLASSPATH=$CLASSPATH:/your/additional/classpath
$SPARK_HOME/bin/spark-class [<spark-config-options>]\
org.apache.spark.examples.SparkPi\
spark://$SPARK_MASTER_IP:$SPARK_MASTER_PORT 10Spark运行参数设置:http://spark.apache.org/docs/0.9.0/configuration.html
3 运行SparkPi在YARN Client模式 在YARN client和YARN cluster模式下, 你首先要上传spark JAR包到你的HDFS上, 然后设置SPARK_JAR环境变量。source /etc/spark/conf/spark-env.sh
hdfs dfs -mkdir -p /user/spark/share/lib
hdfs dfs -put $SPARK_HOME/assembly/lib/spark-assembly_*.jar/user/spark/share/lib/spark-assembly.jar
SPARK_JAR=hdfs://<nn>:<port>/user/spark/share/lib/spark-assembly.jar
source /etc/spark/conf/spark-env.sh
SPARK_CLASSPATH=/your/additional/classpath
SPARK_JAR=hdfs://<nn>:<port>/user/spark/share/lib/spark-assembly.jar
$SPARK_HOME/bin/spark-class [<spark-config-options>]\
org.apache.spark.examples.SparkPi yarn-client 104 运行SparkPi在YARN Cluster模式source /etc/spark/conf/spark-env.sh
SPARK_JAR=hdfs://<nn>:<port>/user/spark/share/lib/spark-assembly.jar
APP_JAR=$SPARK_HOME/examples/lib/spark-examples_<version>.jar
$SPARK_HOME/bin/spark-class org.apache.spark.deploy.yarn.Client \
--jar $APP_JAR \
--class org.apache.spark.examples.SparkPi \
--args yarn-standalone \
--args 10
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