免费注册 查看新帖 |

Chinaunix

  平台 论坛 博客 文库
最近访问板块 发新帖
查看: 2790 | 回复: 1

fastDFS分布式文件系统 [复制链接]

论坛徽章:
0
发表于 2009-07-13 15:38 |显示全部楼层
   最近关注分布式文件系统,看了一下google file system的论文,感想颇多,颠覆传统的文件系统概念,更重要的是性能非常的好,思考之余让我又想起了oracle数据库的机制,又是感慨颇多

,让我再次理解了思想是什么,方法是什么。    闲话少说,对比了一下分布式文件系统,还发现了fastDFS这个轻量级的文件系统也是非常不错的。以下是摘自google中的内容。
FastDFS is an open source high performance distributed file system (DFS). It's major functions include: file storing, file syncing and file accessing, and design for high capacity and load balancing.
FastDFS is an open source high performance distributed file system. It's major functions include: file storing, file syncing and file accessing (file uploading and file downloading), and it can resolve the high capacity and load balancing problem. FastDFS should meet the requirement of the website whose service based on files such as photo sharing site and vidio sharing site.
FastDFS has two roles: tracker and storage. The tracker takes charge of scheduling and load balancing for file access. The storage store files and it's function is file management including: file storing, file syncing, providing file access interface. It also manage the meta data which are attributes representing as key value pair of the file. For example: width=1024, the key is "width" and the value is "1024".
The tracker and storage contain one or more servers. The servers in the tracker or storage cluster can be added to or removed from the cluster by any time without affecting the online services. The servers in the tracker cluster are peer to peer.
The storarge servers organizing by the file volume/group to obtain high capacity. The storage system contains one or more volumes whose files are independent among these volumes. The capacity of the whole storage system equals to the sum of all volumes' capacity. A file volume contains one or more storage servers whose files are same among these servers. The servers in a file volume backup each other, and all these servers are load balancing. When adding a storage server to a volume, files already existing in this volume are replicated to this new server automatically, and when this replication done, system will switch this server online to providing storage services. When the whole storage capacity is insufficiency, you can add one or more volumes to expand the storage capacity. To do this, you need to add one or more storage servers.
The identification of a file is composed of two parts: the volume name and the file
name.



本文来自ChinaUnix博客,如果查看原文请点:http://blog.chinaunix.net/u3/99967/showart_1994805.html

论坛徽章:
0
发表于 2010-01-15 13:46 |显示全部楼层
1. qq群:(超级活跃,都是分布式文件系统的用户和爱好者)
   102082446  (通关密码:我爱分布式文件系统)
2. bbs讨论:
    mfs权威指南(moosefs)分布式文件系统一站式解决方案(部署,性能测试)不断更新ing
     http://bbs.chinaunix.net/thread-1644309-1-1.html
您需要登录后才可以回帖 登录 | 注册

本版积分规则 发表回复

DTCC2020中国数据库技术大会

【架构革新 高效可控】2020年12月21日-23日第十一届中国数据库技术大会将在北京隆重召开。

大会设置2大主会场,20+技术专场,将邀请超百位行业专家,重点围绕数据架构、AI与大数据、传统企业数据库实践和国产开源数据库等内容展开分享和探讨,为广大数据领域从业人士提供一场年度盛会和交流平台。

http://dtcc.it168.com


大会官网>>
  

北京盛拓优讯信息技术有限公司. 版权所有 16024965号-6 北京市公安局海淀分局网监中心备案编号:11010802020122
中国互联网协会会员  联系我们:huangweiwei@it168.com
感谢所有关心和支持过ChinaUnix的朋友们 转载本站内容请注明原作者名及出处

清除 Cookies - ChinaUnix - Archiver - WAP - TOP