本文作者:foochane 
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1 安装说明

在安装spark之前,需要安装hadoop集群环境,如果没有可以查看:Hadoop分布式集群的搭建

1.1 用到的软件

软件 版本 下载地址
linux Ubuntu Server 18.04.2 LTS https://www.ubuntu.com/downlo...
hadoop hadoop-2.7.1 http://archive.apache.org/dis...
java jdk-8u211-linux-x64 https://www.oracle.com/techne...
spark spark-2.4.3-bin-hadoop2.7 https://www.apache.org/dyn/cl...
scala scala-2.12.5 http://www.scala-lang.org/dow...
Anaconda Anaconda3-2019.03-Linux-x86_64.sh https://www.anaconda.com/dist...

1.2 节点安排

名称 ip hostname
主节点 192.168.233.200 Master
子节点1 192.168.233.201 Slave01
子节点2 192.168.233.202 Slave02

2 安装Spark

2.1 解压到安装目录

$ tar zxvf spark-2.4.3-bin-hadoop2.7.tgz -C /usr/local/bigdata/
$ cd /usr/local/bigdata/
$ mv spark-2.4.3-bin-hadoop2.7 spark-2.4.3

2.2 修改配置文件

配置文件位于/usr/local/bigdata/spark-2.4.3/conf目录下。

(1) spark-env.sh

spark-env.sh.template重命名为spark-env.sh
添加如下内容:

export SCALA_HOME=/usr/local/bigdata/scala
export JAVA_HOME=/usr/local/bigdata/java/jdk1.8.0_211
export HADOOP_HOME=/usr/local/bigdata/hadoop-2.7.1
export HADOOP_CONF_DIR=$HADOOP_HOME/etc/hadoop
SPARK_MASTER_IP=Master
SPARK_LOCAL_DIRS=/usr/local/bigdata/spark-2.4.3
SPARK_DRIVER_MEMORY=512M

(2)slaves

slaves.template重命名为slaves
修改为如下内容:

Slave01
Slave02

2.3 配置环境变量

~/.bashrc文件中添加如下内容,并执行$ source ~/.bashrc命令使其生效

export SPARK_HOME=/usr/local/bigdata/spark-2.4.3
export PATH=$PATH:/usr/local/bigdata/spark-2.4.3/bin:/usr/local/bigdata/spark-2.4.3/sbin

3 运行Spark

先启动hadoop
$ cd $HADOOP_HOME/sbin/
$ ./start-dfs.sh
$ ./start-yarn.sh
$ ./start-history-server.sh
然后启动启动sapark
$ cd $SPARK_HOME/sbin/
$ ./start-all.sh
$ ./start-history-server.sh

要注意的是:其实我们已经配置的环境变量,所以执行start-dfs.shstart-yarn.sh可以不切换到当前目录下,但是start-all.shstop-all.sh/start-history-server.sh这几个命令hadoop目录下和spark目录下都同时存在,所以为了避免错误,最好切换到绝对路径下。

spark启动成功后,可以在浏览器中查看相关资源情况:http://192.168.233.200:8080/,这里192.168.233.200Master节点的IP

4 配置Scala环境

spark既可以使用Scala作为开发语言,也可以使用python作为开发语言。

4.1 安装Scala

spark中已经默认带有scala,如果没有或者要安装其他版本可以下载安装包安装,过程如下:
先下载安装包,然后解压

$ tar zxvf scala-2.12.5.tgz -C /usr/local/bigdata/

然后在~/.bashrc文件中添加如下内容,并执行$ source ~/.bashrc命令使其生效

export SCALA_HOME=/usr/local/bigdata/scala-2.12.5
export PATH=/usr/local/bigdata/scala-2.12.5/bin:$PATH

测试是否安装成功,可以执行如下命令:

scala -version

Scala code runner version 2.12.5 -- Copyright 2002-2018, LAMP/EPFL and Lightbe

4.2 启动Spark shell界面

执行 spark-shell --master spark://master:7077命令,启动spark shell。

hadoop@Master:~$ spark-shell --master spark://master:7077
19/06/08 08:01:49 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
Spark context Web UI available at http://Master:4040
Spark context available as 'sc' (master = spark://master:7077, app id = app-20190608080221-0002).
Spark session available as 'spark'.
Welcome to
      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /___/ .__/\_,_/_/ /_/\_\   version 2.4.3
      /_/

Using Scala version 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_211)
Type in expressions to have them evaluated.
Type :help for more information.

scala>

5 配置python环境

5.1 安装python

系统已经默认安装了python,但是为了方便开发,推荐可以直接安装Anaconda,这里下载的是安装包是Anaconda3-2019.03-Linux-x86_64.sh,安装过程也很简单,直接执行$ bash Anaconda3-2019.03-Linux-x86_64.sh即可。

5.2 启动PySpark的客户端

执行命令:$ pyspark --master spark://master:7077

具体如下:

hadoop@Master:~$ pyspark --master spark://master:7077
Python 3.6.3 |Anaconda, Inc.| (default, Oct 13 2017, 12:02:49)
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
19/06/08 08:12:50 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
Welcome to
      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /__ / .__/\_,_/_/ /_/\_\   version 2.4.3
      /_/

Using Python version 3.6.3 (default, Oct 13 2017 12:02:49)
SparkSession available as 'spark'.
>>>
>>>

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