1- 运行scala命令,提示报错 问题现象: 在Windows7系统中安装scala后(直接安装MSI包,或者解压zip包添加环境变量的方式),执行scala命令报错,但可以执行scala -version Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\guowli>scala Welcome to Scala 2.12.4…
好久没有弄博客了... hive0.14 spark0.12 [hadoop@irs bin]$ ./spark-sql Spark assembly has been built with Hive, including Datanucleus jars on classpathException in thread "main" java.lang.RuntimeException: java.lang.NumberFormatException: For input string…
场景:在笔记本安装了一台虚拟机, 在本地的虚拟机上部署了一个kafka服务: 写了一个测试程序,在笔记本上运行测试程序,访问虚拟机上的kafka,报如下异常: 2015-01-15 09:33:26 [kafka.producer.async.DefaultEventHandler]-[INFO] Back off for 100 ms before retrying send. Remaining retries = 1 2015-01-15 09:33:26 [kafka.client.Cl…