deer_sheep的博客

list时报错：ERROR: org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet    at org.apache.hadoop.hbase.master.HMaster.checkServiceStarted(HMaster.java:2382)    at org.apa...

1、读取数据from pyspark.sql import SparkSessionfrom pyspark import SparkContext,SparkConfspark=SparkSession.builder.appName("abv").getOrCreate() #创建spark对象print('spark对象已创建')host = 'learn'table = ...