PySpark in PyCharm on a remote server

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流程

一、虚拟机中共享本地目录，见前文：《通过virtualbox实现虚拟机中共享本地目录》

二、python安装或相关问题见《Install Python 3 on CentOS 6.5 Server》

三、当然，spark是必须的，见《centos单机安装Spark1.4.0》（用到hadoop，见《centos单机安装Hadoop2.6》）

四、remote端安装、设置

vi /etc/profile
添加一行：PYTHONPATH=$SPARK_HOME/python/:$SPARK_HOME/python/lib/py4j-0.8.2.1-src.zip
source /etc/profile

# 安装pip 和 py4j

下载pip-7.1.2.tar
tar -xvf pip-7.1.2.tar
cd pip-7.1.2
python setup.py install
pip install py4j

# 避免ssh时tty检测

cd /etc
chmod 640 sudoers
vi /etc/sudoers
#Default requiretty

五、本地Pycharm设置

Settings > Project Interpreter:

Project Interpreter > Add remote（前提：remote端python安装成功）:

注意，如果python安装在其它路径，要把路径改过来，如：

Run > Edit Configuration （前提：虚拟机中共享本地目录成功）:

六、测试

import osimport sysos.environ['SPARK_HOME'] = '/root/spark-1.4.0-bin-hadoop2.6'sys.path.append("/root/spark-1.4.0-bin-hadoop2.6/python")try:    from pyspark import SparkContext    from pyspark import SparkConf    print ("Successfully imported Spark Modules")except ImportError as e:    print ("Can not import Spark Modules", e)    sys.exit(1)

Result:

ssh://root@192.168.22.250:22/usr/bin/python -u /mnt/shared/test01/test01a.pySuccessfully imported Spark ModulesProcess finished with exit code 0

来个复杂些的：

import syssys.path.append("/root/programs/spark-1.4.0-bin-hadoop2.6/python")try:    import numpy as np    import scipy.sparse as sps    from pyspark.mllib.linalg import Vectors    dv1 = np.array([1.0, 0.0, 3.0])    dv2 = [1.0, 0.0, 3.0]    sv1 = Vectors.sparse(3, [0, 2], [1.0, 3.0])    sv2 = sps.csc_matrix((np.array([1.0, 3.0]), np.array([0, 2]), np.array([0, 2])), shape=(3, 1))    print(sv2)except ImportError as e:    print("Can not import Spark Modules", e)    sys.exit(1)

Result

ssh://root@192.168.22.250:22/root/programs/python3/bin/python -u /mnt/shared/test01/test01a.py  (0, 0)1.0  (2, 0)3.0Process finished with exit code 0

Q&A

Q: sudo: sorry, you must have a tty to run sudo
A:
cd /etc
chmod 640 sudoers
vi /etc/sudoers
#Default requiretty #注释掉 Default requiretty 一行。意思就是sudo默认需要tty终端，注释掉就可以在后台执行了。

Q: VirtualBox的Shared folder功能出现broken shared folder错误
A: 见上文中提到的虚拟机中共享本地目录

Q: 一会儿什么cannot import name accumulators, 一会儿什么cannot import name py4j
A:
下载pip-7.1.2.tar
tar -xvf pip-7.1.2.tar
cd pip-7.1.2
python setup.py install
pip install py4j
搞定！

参考
https://edumine.wordpress.com/2015/08/14/pyspark-in-pycharm/
http://renien.github.io/blog/accessing-pyspark-pycharm/
http://www.tuicool.com/articles/MJnYJb

等等。。。

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