我试图使用Pyspark连接插入到现有的Mysql表中,但是我得到了以下错误
File "<stdin>", line 1, in <module>
File "/usr/hdp/current/spark2-client/python/pyspark/sql/context.py", line 384, in sql
return self.sparkSession.sql(sqlQuery)
File "/usr/hdp/current/spark2-client/python/pyspark/sql/se
我试图在Yarn框架上以客户端模式读取本地文件。我也无法在客户端模式下访问本地文件。
import os
import pyspark.sql.functions as F
from os import listdir, path
from pyspark import SparkConf, SparkContext
import argparse
from pyspark import SparkFiles
from pyspark.sql import SparkSession
def main():
spark = SparkSession \
.builder \
在具有4个CPU的Ubuntu16.04虚拟机上,我对pyspark和纯python的性能进行了简单的比较。我在有4个cpus的虚拟机上以本地安装的方式运行spark。
#!/home/python3/venv/bin/python3
import pyspark
from pyspark.sql import SparkSession
from operator import add
from datetime import datetime
spark = SparkSession.builder.appName('ai_project').getOrCreate()
l