随笔分类 - 自用
摘要:[root@master ~]# sqoop import --connect jdbc:mysql://localhost/hadoopguide --table widgets -m 1 --username hadoopguide --password 'H@doopgu1de' Warnin
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摘要:1.创建用户 create user 'hadoopguide'@'%' identified by 'H@doopgu1de'; create user 'hadoopguide'@'localhost' identified by 'H@doopgu1de'; 2.给予权限 GRANT ALL 
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摘要:导出 Windows: mysqldump -uroot -p hadoopguide>C:\Users\Public\Desktop\hadoopguide.sql 头部添加: create database if not exists hadoopguide; use hadoopguide; 
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摘要:[root@master ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version
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摘要:表的可能达到的最大大小: MAX_ROWS * AVG_ROW_LENGTH [root@master ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your 
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摘要:C:\Users\Administrator>mysql -uroot -p Enter password: **** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 8 Ser
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摘要:提交读 准备工作: create database test; drop table test.read_committed; create table test.read_committed(number int, text varchar(15)); 1.更改隔离级别 窗口一: set sess
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摘要:[root@master ~]# pig -x local SLF4J: Class path contains multiple SLF4J bindings. SLF4J: Found binding in [jar:file:/usr/local/src/hadoop/share/hadoop
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摘要:C:\Users\Administrator>mysql -uroot -p Enter password: **** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Se
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摘要:1.版本对应 spark与scala版本对应:https://mvnrepository.com/artifact/org.apache.spark/spark-core spark版本:spark-3.5.4-bin-hadoop3.tgz 2.下载 curl https://downloads.
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try 
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摘要:C:\Users\Administrator>mysql -uhadoopguide -p Enter password: *********** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connecti
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try 
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摘要:1.下载 curl https://dlcdn.apache.org/pig/pig-0.17.0/pig-0.17.0.tar.gz -o /opt/software/pig-0.17.0.tar.gz 2.解压 tar -zxvf /opt/software/pig-0.17.0.tar.gz 
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摘要:C:\Users\Administrator>mysql -uhadoopguide -p Enter password: *********** Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connecti
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摘要:!:本次测试没有启动任何版本hadoop spark-3.5.4-bin-hadoop3 [root@master spark]# IPYTHON=1 ./bin/pyspark Error in pyspark startup: IPYTHON and IPYTHON_OPTS are remov
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摘要:C:\Users\Administrator\Documents\spark\spark-3.5.4-bin-hadoop3>set PYSPARK_DRIVER_PYTHON=ipython C:\Users\Administrator\Documents\spark\spark-3.5.4-bi
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摘要:C:\Users\Administrator>scala Welcome to Scala 2.11.12 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_421). Type in expressions for evaluation. Or try 
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摘要:C:\Users\Administrator>mysql hadoopguide ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: NO) C:\Users\Administrator>mys
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摘要:官网:https://ipython.org/ Microsoft Windows [版本 10.0.20348.2527] (c) Microsoft Corporation。保留所有权利。 C:\Users\Administrator>pip Usage: pip <command> [opti
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