木卫二号的专栏

【代码】kmeans on spark error: assertion failed: Number of clusters must be greater than one.

maven<properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <scala.version>2.12.10</scala.version> <spark.version>3

<repositories> <repository> <id>central</id> <url>http://maven.aliyun.com/nexus/content/groups/public/</url> <snapshots> <enabled>true</enabled&g

Spark Standalone安装0.基本信息 centos7 jdk-8u181 spark-2.4.4-bin-hadoop2.7.tgz 主机 172.17.0.2 172.17.0.31.主节点 0.登录主节点 1.ssh-keygen -t rsa 2.cd ~/.ssh/ 3.cat id_rsa.pub >> authorized_keys...