运行spark时提示 env: ‘python’: No such file or directory

运行spark时提示如下信息：

hadoop@MS-YFYCEFQFDMXS:/home/trp$ cd /usr/local/spark
hadoop@MS-YFYCEFQFDMXS:/usr/local/spark$ ./bin/pyspark
env: ‘python’: No such file or directory

原因：没有配置Spark python的环境变量

解决步骤：

1、添加python相关环境变量

hadoop@MS-YFYCEFQFDMXS:/usr/local/spark$ nano ~/.bashrc

　在末尾插入：注： py4j-0.10.9-src.zip  在目录下 usrlocalsparkpythonlib

export PYTHONPATH=$SPARK_HOME/python:$SPARK_HOME/python/lib/py4j-0.10.9-src.zip:$PYTHONPATH
export PYSPARK_PYTHON=python3

修改后使用 Ctrl+X，
提示：save modified buffer ...?    ，选择 ：yes
又提示：file name to write ：***.launch   ，选择：Ctrl+T
在下一个界面用 “上下左右” 按键 选择要保存的文件名，
然后直接点击 “Enter” 按键即可保存。

2、让环境变量生效

hadoop@MS-YFYCEFQFDMXS:/usr/local/spark$ source ~/.bashrc

3、运行pyspark

hadoop@MS-YFYCEFQFDMXS:/usr/local/spark$ ./bin/pyspark
Python 3.8.2 (default, Mar 13 2020, 10:14:16)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
2020-07-19 21:35:40,464 WARN util.Utils: Your hostname, MS-YFYCEFQFDMXS resolves to a loopback address: 127.0.1.1; using 192.168.13.139 instead (on interface wifi0)
2020-07-19 21:35:40,466 WARN util.Utils: Set SPARK_LOCAL_IP if you need to bind to another address
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.apache.spark.unsafe.Platform (file:/usr/local/spark/jars/spark-unsafe_2.12-3.0.0.jar) to constructor java.nio.DirectByteBuffer(long,int)
WARNING: Please consider reporting this to the maintainers of org.apache.spark.unsafe.Platform
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-07-19 21:35:41,865 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 3.0.0
      /_/

Using Python version 3.8.2 (default, Mar 13 2020 10:14:16)
SparkSession available as 'spark'.
>>>

查看Web监控页面

http://localhost:4040/jobs/