编程问答

How to do unit testing of custom RecordReader and InputFormat classes?(如何对自定义 RecordReader 和 InputFormat 类进行单元测试?)
Hadoop options are not having any effect (mapreduce.input.lineinputformat.linespermap, mapred.max.map.failures.percent)(Hadoop 选项没有任何效果(mapreduce.input.lineinputformat.linespermap、mapred.max.map.failures.percent)) - IT屋-程序员软件
Spark on yarn jar upload problems(Spark on yarn jar 上传问题)
Hadoop mapReduce How to store only values in HDFS(Hadoop mapReduce 如何在 HDFS 中仅存储值)
Key of object type in the hadoop mapper(hadoop映射器中对象类型的键)
Using Hadoop for the First Time, MapReduce Job does not run Reduce Phase(首次使用 Hadoop,MapReduce Job 不运行 Reduce Phase)
Chaining Multi-Reducers in a Hadoop MapReduce job(在 Hadoop MapReduce 作业中链接 Multi-Reducer)
HDFS write resulting in quot; CreateSymbolicLink error (1314): A required privilege is not held by the client.quot;(HDFS 写入导致CreateSymbolicLink 错误 (1314):客户端未持有所需的权限.)
YarnException: Unauthorized request to start container(YarnException:启动容器的未经授权的请求)
How can I access the Mapper/Reducer counters on the Output stage?(如何访问输出阶段的 Mapper/Reducer 计数器?)
Secondary sorting in Map-Reduce(Map-Reduce 中的二次排序)
How to read multiple image files as input from hdfs in map-reduce?(如何在 map-reduce 中从 hdfs 读取多个图像文件作为输入?)