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Scala 的類型推斷 按照官方的說(shuō)法旬渠,Scala 的類型推斷是基于流(flow based)的明吩,假設(shè)有方法如下: 這個(gè)方法的類型是經(jīng)過柯里化的...
Key Words:MapReduce, Job, Task, Resouce Manager, Node Manager, MRAppMast...
簡(jiǎn)單的 MapReduce 作業(yè)顶考,需要一個(gè) map 函數(shù),一個(gè) reduce 函數(shù)和一些用來(lái)運(yùn)行作業(yè)的代碼 橫向擴(kuò)展(Scaling out) ...
Key Words: HDFS, data block HDFS 的設(shè)計(jì) 超大文件:指的是幾百 MB,幾百 GB 設(shè)置幾百 TB 大小的文件 流...
Key Words: Configruation, Combiing Resources, Variable Expansion, depend...
Key Words: DistributedFileSystem, FSDataOutputStream, Pipeline, Coherenc...
Key Words: namenode, datanode, HDFS, HDFS Client, DistributedFileSystem,...
Key Words: Implicit conversions, Implicit parameters, Implicit class, Im...
Key Words: abstract member, pre-initialized fields, lazy vals, path-depe...