hadoop 之HDFS

最新推荐文章于 2025-01-14 10:08:09 发布
原创 最新推荐文章于 2025-01-14 10:08:09 发布 · 663 阅读 · 0 ·
CC 4.0 BY-SA版权
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
文章标签：

#hadoop #磁盘

我们在一个磁盘驱动器上读写速度只是一个磁头的速度，如果我们在n个磁盘驱动器上读数据，那么速度为n*磁头的速度
opmic
关注
大数据之-Hadoop之HDFS_Fsimage和Edits文件的解析---大数据之hadoop工作笔记0071
添柴程序猿的专栏
04-06 665
我们知道fsimage文件是,hadoop的hdfs,在写入文件的时候,为了保险把数据固化的磁盘的上的这个文件叫做fsimage 而edits文件,是为了数据传输的比较快,会先把数据的操作记录,记录到这个edits文件中,然后适时再去把edits文件中的内容, 同步到fsimage磁盘上. ..
hadoop-hdfs-fsimage-exporter：将Hadoop HDFS内容统计信息导出到Prometheus
02-03
Prometheus Hadoop HDFS FSImage导出器 | 将Hadoop HDFS统计信息导出到包括 总数/每个用户/每个组/每个配置的目录路径/每个路径集 目录数 文件数 文件大小和大小分布（可选） 块数 文件复制（总体/每个用户摘要） 导出器使用解析FSImage。 这种方法的优点是 快速（2.6 GB FSImage〜50s） 不会给HDFS NameNode增加额外的负担（没有NameNode查询，您可以在第二个NameNode上运行它） 缺点是 没有实时更新，仅在NameNode写入FSImage时每6小时更新一次。 但是对于大多数情况（长期趋势，检测HDF
hadoop exporter配置Prometheus & Grafana
longxibo的博客
10-17 2163
实践 hadoop exporter prometheus grafana配置
【Hadoop_exporter】prometheus监控hadoop
BIG BOSS的博客
01-30 5696
下载jmx_prometheus_javaagent-0.15.0.jar https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.15.0/ 写需要监控的角色专属yaml namenode.yaml startDelaySeconds: 0 #master为本机IP（一般可设置为localhost）；1234为想设置的jmx端口 hostPort: localhost:1234 #jmxUrl: servi
【亲测免费】 Hadoop HDFS FsImage Exporter 项目推荐
gitblog_00511的博客
01-14 832
Hadoop HDFS FsImage Exporter 项目推荐 Hadoop HDFS FsImage Exporter 是一个开源项目，旨在将 Hadoop HDFS 的统计信息导出到 Prometheus 监控系统。该项目主要使用 Java 编程语言开发。 1. 项目基础介绍 Hadoop HDFS FsImage Exporter 通过分析 Hadoop 的 FsImage 文件，导出包...
Hadoop HDFS FSImage 导出器 使用指南
gitblog_00804的博客
09-01 1105
Hadoop HDFS FSImage 导出器 使用指南 本指南旨在帮助您了解并快速上手 Hadoop HDFS FSImage Exporter，一个用于将Hadoop HDFS的内容统计信息导出到Prometheus的工具。 1. 项目目录结构及介绍 Hadoop HDFS FSImage Exporter的项目结构通常遵循Maven或Gradle等构建系统的标准布局，尽管具体的文件可能会有所...
Hadoop之HDFS
weixin_50915101的博客
12-04 3363
一.HDFS概述 1.1HDFS产生的背景定义 1）背景：随着数据量越来越大，在一个操作系统存不下所有的数据，那么就分配到更多的 操作系统管理的磁盘中，但是不方便管理和维护，迫切需要一种系统来管理多台机器上的文件，这就是分布式文件管理系统。HDFS只是分布式文件管理系统中的一种。 2）定义：HDFS（Hadoop Distributed File System），它是一个文件系统，用于存储文件，通过目录树来定位文件；其次，它是分布式的，由很多服务器联合起来实现其功能，集群中的服务器有各自的角色。 H
Hadoop之hdfs架构详解共2页.pdf.zip
10-28
【标题】"Hadoop之hdfs架构详解共2页.pdf.zip" 提供的主题是关于Hadoop的分布式文件系统HDFS（Hadoop Distributed File System）的深入解析，这是一份两页的PDF文档，可能涵盖了HDFS的核心概念、设计原则、工作流程...
大数据开发-Hadoop之HDFS的使用
Grady的博客
03-05 1243
Hadoop hdfs基本命令、java操作hdfs
Hadoop 之 HDFS命令
2201_75364488的博客
05-11 2735
HDFS（Hadoop Distributed File System）是Hadoop生态系统中的一个核心组件，它是一个高度容错性的分布式文件系统，设计用于在廉价硬件上存储大规模数据集。HDFS的架构采用主从（Master/Slave）结构模型，包含一个。
hadoop hdfs配置
03-23
大数据,hadoop,hdfs配置，java开发
Hadoop学习二十五：Hadoop-Hdfs FSImage源码
zy19982004的专栏
07-04 277
一. FSImage作用 加载硬盘镜像文件fsimage到内存。 加载硬盘日志文件edits到内存。这个本来是类FSEditlog的事情，但是是由FSImage负责调用。 保存内存中文件层次结构到硬盘文件fsimage中。 保存内存中操作日志到硬盘文件edits上。按照对应关系，觉得是应该有这么一步吧。但遗憾的告诉你，这一步在整个文件系统中不存在。也就是FSImage可以分为内存和硬...
Hadoop的hdfs常用的文件命令
jia_zhengshen的专栏
10-08 685
1.中文：https://segmentfault.com/a/1190000002672666 2.英文http://hadoop.apache.org/docs/r2.7.4/hadoop-project-dist/hadoop-common/FileSystemShell.html#cat
Hadoop HDFS概念以及查看fsimage和edit日志文件
大佛拈花的博客
08-24 1338
Hadoop的HDFS文件系统是采用主从结构的。master就是NameNode.NameNode不保存实际的操作数据，而是保存数据到数据块的映射，以及数据的操作记录。可以理解为NameNode就是fsimage+editlog。那么什么是fsimage呢？fs就是目录的意思，image就是图片，可以理解为目录树。就是文件映射到DataNode的记录树。editlog就是文件读写的记录。S...
Hadoop HDFS操作
ItStar
01-03 529
启动HDFS首先，您必须格式化配置的HDFS文件系统，打开namenode（HDFS服务器），然后执行以下命令。$ hadoop namenode -format 格式化HDFS后，启动分布式文件系统。以下命令将启动namenode以及数据节点作为集群。$ start-dfs.sh 在HDFS中列出文件在服务器中加载信息后，我们可以在一个目录中找到文件列表，文件的状态，使用'ls'。下面给出了
hadoop-hdfs-fsimage与edits合并
weixin_34119545的博客
05-03 212
1.x 模型 转载于:https://www.cnblogs.com/LXL616/p/10804132.html
hadoop_exporter+prometheus监控HDFS
weixin_40689822的博客
11-29 2236
1.准备工作 安装go、glibe(需要连google服务器，咋连的，我就不写了，因为尝试了各种办法，都失败了，很伤心) 2.下载hadoop_exporter cd /usr/local/prom/exporter git clone https://github.com/Datatamer/hadoop_exporter cd hadoop_exporter glide install go get github.com/prometheus/client_golang/prometheus go g
Hadoop中HDFS文件管理系统的使用
theVicTory的博客
04-21 5191
HDFS系统的组成，文件读写流程，NameNode和DataNode工作原理，使用Shell命令操作HDFS，使用Client API进行数据操作
hadoop_exporter
weixin_30906701的博客
03-13 758
1.下载安装go 1、下载二进制包：go1.4.linux-amd64.tar.gz。 2、将下载的二进制包解压至 /usr/local目录。 tar -C /usr/local -xzf go1.4.linux-amd64.tar.gz 3、配置go编辑目录mkdir -p /usr/local/go/workplace4、将 /usr/local/go/bin 目录添加...
hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.3.3.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.3.3.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Null.java tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Null.java: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.8.3.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.8.3.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.3.5.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.3.5.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.8.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.8.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.3.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.3.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.22.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.22.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.9.1.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.9.1.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.1.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.1.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.20.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.20.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.0-alpha4.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.0-alpha4.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.9.2.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.9.2.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.0-alpha2.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.0-alpha2.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.2.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.2.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.10.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_2.10.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.1.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.0.1.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.1.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.1.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.4.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.2.4.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.21.0.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/hadoop-hdfs_0.21.0.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.3.xml tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/jdiff/Apache_Hadoop_HDFS_3.1.3.xml: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/hadoop-hdfs-client-3.3.6-tests.jar tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/hadoop-hdfs-client-3.3.6-tests.jar: Cannot open: No such file or directory hadoop-3.3.6/share/hadoop/hdfs/hadoop-hdfs-httpfs-3.3.6.jar tar: hadoop-3.3.6: Cannot mkdir: Permission denied tar: hadoop-3.3.6/share/hadoop/hdfs/hadoop-hdfs-httpfs-3.3.6.jar: Cannot open: No such file or directory tar: Exiting with failure status due to previous errors jtx@ubuntu:~$
最新发布
09-28
后续在运行Hadoop时，如果出现权限问题（如引用[2]和引用[4]），可能需要使用HDFS的命令来设置目录权限，例如： ```bash hdfs dfs -chmod 777 / # 不推荐，这里只是示例，实际生产环境需要严格控制权限 ``` ...
评论
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值