hadoop meaning in english

Http://blog.oddfoo.net/2011/04/17/mapreduce-partition%E5%88%86%E6%9E%90-2/ Location of Partition Partition location Partition is mainly used to send the map results to the corresponding reduce. This has two requirements for partition:

Hadoop's balance tools are typically used to balance the file block distribution in each datanode in a Hadoop cluster while on-line Hadoop cluster operations. To avoid the problem of a high percentage of datanode disk usage (which is also likely to

During online hadoop cluster O & M, hadoop's balance tool is usually used to balance the distribution of file blocks in each datanode in the hadoop cluster, to avoid the high usage of some datanode disks (this problem may also lead to higher CPU

Serverclustering refers to the pooling of many servers together for the same service,ClientIt looks like there's only one server. Clusters can be used by multiple computers toParallel computingThis results in a high computational speed and can be

First, install Ubuntu dual system in Windows7Tools/MaterialsWindows7 64-bitUbuntu 16.04 32-bitUltraISO the latest version (used to bake the image file onto a USB flash drive)Empty u disk (if you have files, please backup first)　　1. Allocate a piece

In fact, using Cygwin to simulate a Linux environment to run Hadoop is very easy, and simply configure it to run a stand-alone Hadoop. Here, the more critical is Cygwin installation, in the choice of installation must be installed OpenSSH, otherwise

4th Chapter HDFs java API 4.5 Java API Introduction In section 4.4 We already know the HDFs Java API configuration, filesystem, path, and other classes, this section will detail the HDFs Java API, a section to demonstrate more applications. 4.5.1

Website Log Analysis Project case (i) Project description: http://www.cnblogs.com/edisonchou/p/4449082.html Website Log Analysis Project case (ii) Data cleansing: Current Page Website Log Analysis Project case (iii) statistical analysis:

reprinted from: Hadoop Log Cleaning 1.1 Data Situation review There are two parts to the forum data: (1) Historical data of about 56GB, statistics to 2012-05-29. This also shows that before 2012-05-29, the log files were in a file, using the

Since Spark is written in Scala, Spark is definitely the original support for Scala, so here is a Scala-based introduction to the spark environment, consisting of four steps: JDK installation, Scala installation, spark installation, Download and