最近在学习传智播客吴超老师的Hadoop视频,里面他在讲解RPC通信原理的过程中给了一个RPC的小例子,但是自己编写的过程中遇到一个小错误,整理如下: log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory).log4j:WARN Please initialize the log4j system properly.log4j:WARN See…
在创建自定义的Mapper时候,编译正确,但上传到集群执行时出现错误: 11/16/05 22:53:16 INFO mapred.JobClient: Task Id : attempt_201111301626_0015_m_000000_0, Status : FAILED java.lang.RuntimeException: java.lang.ClassNotFoundException: actiondemo.MyJob$MapClass at org.apache.Hadoop.…
报错内容 Caused by: java.lang.UnsatisfiedLinkError: /tmp/snappy-1.1.7-4a4b576a-c34c-481e-b6ac-9b4abacb112e-libsnappyjava.so: Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /tmp/snappy-1.1.7-4a4b576a-c34c-481e-b6ac…
微信小程序的两个BUG,也许可能是我搞错了 1.wx.uploadFile 用循环上传图片的时候,电脑.苹果手机上都会正常,安卓机上面则会出现the same task is working的问题 2.配置文件中的windows的backgroundColor设置,在苹果手机中无效,到安卓手机有效...…