02 2025 档案
摘要：一、硬件 1.查看宿主机ip cmd命令：ipconfig 无线局域网适配器 WLAN: 连接特定的 DNS 后缀 . . . . . . . : IPv6 地址 . . . . . . . . . . . . : 保密 本地链接 IPv6 地址. . . . . . . . : fe80::f08
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摘要：一、硬件 1.为虚拟机添加网卡 2.配置网卡 二、软件 3.获取mac地址 命令：ip link [root@vbox network-scripts]# ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKN
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摘要：2025-02-22 Scala官网下载链接失效 原文链接：【Scala】镜像网站下载，速度直接起飞 镜像网站：https://distfiles.macports.org/ 2025-02-05 10:35 官方网站：https://www.scala-lang.org/download/all.
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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：1.提取正文 2.裁剪页眉 https://smallpdf.com/cn/crop-pdf#r=crop-pages 3.拆分 4.ocr 效果图--白描： 效果图--4Videosoft PDF Converter Ultimate： 5.阅读器与tts引擎 开源阅读：https://githu
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