pyspark 本地远程连接hive

2022-12-30 09:46:57
#配置本地spark的环境,必须放在最前面
import findspark
findspark.init()
print(findspark.find())

from pyspark.sql import SparkSession

#新建sparksession
sparksession = SparkSession.builder.master("local[*]").appName("hive_test_1") \
    .config("hive.metastore.uris","thrift://158.158.4.49:9083") \
    .enableHiveSupport().getOrCreate()

#从hive读数据
sql_1="select * from test.biao_4"
df1 = sparksession.sql(sql_1)
df1.show()

#数据写入到hive中
df2 = sparksession.createDataFrame((
    (1, "asf"),
    (2, "2143"),
    (3, "rfds")
)).toDF("label", "sentence")
df2.write.mode("overwrite").saveAsTable("test.biao_6")

有些文章说,需要hdfs,hive的xml文件到项目中,奇怪,本人测试都不需要,非常轻松,比java spark本地操作hive要简单的多
java spark本地操作hive可查看博文

https://blog.csdn.net/qq_41712271/article/details/103206827

  • 作者:小哇666
  • 原文链接:https://blog.csdn.net/qq_41712271/article/details/116991415
    更新时间:2022-12-30 09:46:57