tfs-taobao
commented
11 years ago Question 1
“Flat structure“ means tfs doesn’t have a hierarchical directory structure similar to traditional filesystem， you can simply think that all the files are located in the same root path.
Question 2
Tfs uses ext4(or some other fs) to store block which contains many small files in it, not directly use raw device.
发件人: chenttuuvv [mailto:notifications@github.com] 发送时间: 2013年8月28日 10:33 收件人: alibaba/tfs 主题: [tfs] What is "flat structure" mean in the introduction part of the project homepage? (#1)
It seems that I fail to find any definition of this term in Google.com. I guess it may refer to the meaning that all block files are located in the same directory, is that right?
Queston 2 : Does this phrase "在块设备基础上建立自有的文件系统，减少EXT3等文件系统数据碎片带来的性能损耗" mean that TFS does not use API provided by VFS layer and write data to file /dev/sda1 directly ?
— Reply to this email directly or view it on GitHub https://github.com/alibaba/tfs/issues/1 . https://github.com/notifications/beacon/iTFC0gTL357GM7IXGDxbgjhcLfhzL4oplSa3cEsILkIurW66YJ8FbJ4xIHKUr6-W.gif
It seems that I fail to find any definition of this term in Google.com. I guess it may refer to the meaning that all block files are located in the same directory, is that right?
Queston 2 : Does this phrase "在块设备基础上建立自有的文件系统，减少EXT3等文件系统数据碎片带来的性能损耗" mean that TFS does not use API provided by VFS layer and write data to file /dev/sda1 directly ?