<!--5f39ae17-8c62-4a45-bc43-b32064c9388a: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-->
- 浏览: 1397826 次
- 性别:
- 来自: 西安
最新评论
-
kingterrors:
你不如直接把mdn的连接放上来, 看的格式还清楚些... ...
正则表达式replace方法应用 -
masuweng:
JSP的Cookie在登录中的应用 -
yhzhangdota:
最常用的都列举出来了,很好
Oracle字符函数 -
sgq0085:
这都能上首页博文推荐,javaeye真不行了
Junit4快速入门 -
masuweng:
Oracle 的case ...when语句
相关推荐
Java-HDFS 体系结构与基本概念 HDFS(Hadoop Distributed File System)是一种分布式文件系统,主要用于存储和管理大规模数据。HDFS 的设计初衷是为了满足高性能、高可靠性和高可扩展性的需求。 HDFS 体系结构 ...
1.1.2 HDFS基本概念 2 1.2 HDFS通信协议 4 1.2.1 Hadoop RPC接口 4 1.2.2 流式接口 20 1.3 HDFS主要流程 22 1.3.1 HDFS客户端读流程 22 1.3.2 HDFS客户端写流程 24 1.3.3 HDFS客户端追加写流程 25 ...
以下是对HDFS基本概念、数据流动过程和架构设计的详细解析。 1. HDFS 基本概念 - 数据块(Block):HDFS以固定大小的数据块为单位存储文件,默认数据块大小为64MB。文件内容被分割成若干个数据块,分别存储在不同...
HDFS 基本概念和架构 HDFS(Hadoop Distributed File System)是 Hadoop 生态系统中的一个核心组件,负责存储和管理大规模数据。下面是 HDFS 的基本概念和架构: 数据块(Block) HDFS 中的基本存储单位是 64M 的...
### HDFS基本概念详解 #### 1.1 数据块(Block) HDFS(Hadoop Distributed File System)中的数据块是其最基本的存储单位,默认情况下每个数据块的大小为64MB。与传统的文件系统类似,HDFS将文件划分为多个数据块...
#### 一、HDFS基本概念 Hadoop是一个能够对大量数据进行分布式处理的软件框架,它支持大规模数据集的分布式处理,是大数据技术领域的重要组成部分。Hadoop的核心组件之一是HDFS(Hadoop Distributed File System)...
HDFS基本概念 HDFS是一种基于块存储的分布式文件系统,将大文件分割成固定大小的块(默认为128MB),并将其分布在不同的节点上。每个文件块通常都有多个副本,以提高数据可用性和容错性。 ### 2. HDFS架构 HDFS...
### HDFS基本概念 **1. 分布式存储:**HDFS将大型文件分布在多台廉价的硬件节点上,以提供高可用性和容错性。每个文件被分割成多个块,这些块在集群中的不同节点上复制。 **2. NameNode与DataNode:**NameNode是...
1. **HDFS基本概念** - **NameNode**:HDFS的主节点,负责管理文件系统的命名空间和元数据,如文件名、文件块信息等。 - **DataNode**:存储实际数据的从节点,执行数据读写操作。 - **Block**:HDFS将大文件分割...
首先,我们要理解HDFS的基本概念。HDFS是一种分布式文件系统,它将大型文件分割成块,并将这些数据块分散存储在集群中的多台服务器上,确保数据的冗余和可靠性。这种设计使得HDFS能够处理PB级别的数据,同时保持高...
### HDFS基本概念 1. **NameNode**:管理元数据,包括文件系统命名空间和文件的块映射信息。 2. **DataNode**:存储实际的数据块,执行数据读写操作。 3. **Block**:文件被分割成固定大小的数据块,默认为128MB或...
HDFS Shell命令则用于交互式操作,如创建目录、上传/下载文件、查看文件内容等,这些命令包括ls、mkdir、put、get、rm等,通过它们可以熟练掌握HDFS的基本操作。 四、HDFS项目开发环境 在Hadoop集群的主节点上搭建...
Hadoop 培训课程(2)HDFS ...HDFS体系结构与基本概念*** HDFS的shell操作*** java接口及常用api*** ---------------------------加深拓展---------------------- RPC调用** HDFS的分布式存储架构的源码分析**
### HDFS基本概念 **HDFS(Hadoop Distributed File System)**是Hadoop生态系统中的分布式文件系统,用于存储大量的数据集。HDFS的设计目的是为了满足在商用硬件集群上运行大数据处理应用的需求。它具有高容错性、...
HDFS基础概念描述,脑图展示,易于理解与记忆,仅供学习使用。Hadoop分布式文件系统(HDFS)是指被设计成适合运行在通用硬件(commodity hardware)上的分布式文件系统(Distributed File System)。
2. **HDFS基本概念**:HDFS是一种分布式文件系统,设计用于处理和存储非常大的数据集。它将大文件分割成块,并将这些块复制到多个节点上,以提高容错性和可用性。 3. **Hadoop文件上传**:在Hadoop中,上传文件到...
1. HDFS的基本概念和架构:介绍NameNode、DataNode、Secondary NameNode等组件的角色和功能。 2. 文件系统操作:如文件创建、打开、读写、删除等,以及HDFS命令行工具的使用。 3. HDFS的副本策略和容错机制:如何...
本文将深入探讨HDFS的基础知识以及与Broker相关的概念。 **1. HDFS的基本原理** HDFS是基于Google的GFS(Google File System)设计的开源文件系统,属于Hadoop生态系统的一部分。它将大文件分割成块(通常为128MB...
通过本实验,我们学习了HDFS的基本概念和常用的操作命令,熟悉了HDFS在Hadoop体系结构中的角色,并且掌握了HDFS的Java API。这些知识将帮助我们更好地理解和使用HDFS在数据存储和处理中的应用。