学习笔记

用户名三台机子要一致主节点 hadoop0从节点 hadoop1、hadoop11、创建/usr/program目录su - #切换到到root用户cd /usr/localmkdir programchown -R hadoop0:hadoop program/ 给hadoop用户访问权限 hadoop0:主机名 hadoop:用户名2、编辑hosts文件vi /etc/hosts#添加以下内容192.168.159.100 hadoop0192.168.159.101 h

图片压缩、修改尺寸python实现from PIL import Imageimport osdef get_size(file): # 获取文件大小:KB size = os.path.getsize(file) return size / 1024def get_outfile(infile, outfile): if outfile: return outfile dir, suffix = os.path.splitext(infi

视频抽帧Java实现依赖：<!-- https://mvnrepository.com/artifact/org.bytedeco/javacv --> <dependency> <groupId>org.bytedeco</groupId> <artifactId>javacv</artifactId> <version>1.0&l