hadoop3.x 序列化机制(Writable、序列化类型)
hadoop3.x mapreduce 实现wordcount-在yarn执行、查看结果
spark3.0教程:广播变量
spark3.0教程:转换算子不会执行累加器,行动算子会执行累加器
spark3.0教程:累加器
windows hadoop MapReduce 罕见错误:Cleaning up the staging area file:/tmp/hadoop/mapred/staging ... No such file or directory
hadoop3.x mapreduce 实现统计词频-ToolRunner方式提交
zookeeper-3.4.x 动态服务器上下线(代码)
zookeeper-3.4.x 动态服务器上下线(图解)
hadoop3.x:Sequence File序列化文件-读文件