bigdata learning unit two--Spark environment setting
1、下载
Spark安装之前的准备
文件的解压与改名
tar -zxvf spark-2.2.0-bin-hadoop2.7.tgz
rm -rf spark-2.2.0-bin-hadoop2.7.tgz
为了我后面方便配置spark,在这里我把文件夹的名字给改了
mv spark-2.2.0-bin-hadoop2.7 spark-2.2.0
-----------------------------------------------------------------------------------------
打开spark-shell 后,方能打开下面网址

退出的正确操作是:- :quit
http://10.167.202.135:4040/jobs/

配置环境变量
vi /etc/profile
在最尾巴加入
export SPARK_HOME=/usr/local/spark-2.2.0
export PATH=$PATH:$SPARK_HOME/bin
首先我们把缓存的文件spark-env.sh.template改为spark识别的文件spark-env.sh
cp conf/spark-env.sh.template conf /spark-env.sh
vi conf/spark-env.sh
- OPENBLAS_NUM_THREADS=1 Disable multi-threading of OpenBLAS
export JAVA_HOME=/usr/local/jdk1.8
export SCALA_HOME=/usr/local/scala-2.11.7
export HADOOP_HOME=/usr/local/hadoop-3.1.0/
export HADOOP_CONF_DIR=/usr/local/hadoop-3.1.0/etc/hadoop
export SPARK_MASTER_IP=localhost
export SPARK_WORKER_MEMORY=4g
export SPARK_WORKER_CORES=2
export SPARK_WORKER_INSTANCES=1
--------
*****下面是修改默认端口8080为8086*****
spark master web ui 默认端口为8080,当系统有其它程序也在使用该接口时,启动master时也不会报错,spark自己会改用其它端口,自动端口号加1,但为了可以控制到指定的端口,我们可以自行设置,修改方法:
1、cd SPARK_HOME/sbin
2、vi start-master.sh
3、定位到下面部分内容:
if [ "$SPARK_MASTER_WEBUI_PORT" = "" ]; then
SPARK_MASTER_WEBUI_PORT=8080
fi
4、修改上面的端口为其它可用端口就行
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