The goal of this tutorial is to meet what I see as a need for such a document. The filesystem simply passes every operation down to an underlying directory, but logs the operation. Audience: This tutorial is aimed at developers who have some familiarity with general programming in Linux and Unix-like operating systems in general , so you know how to untar a tarball, how Makefiles work, and so forth. I won't be going through the details of how to perform those tasks; I'll be focussing on what you need to know that's specific to using FUSE filesystems.
I am not affiliated with the FUSE project in any way, except as a user. The biggest advantage of this model is that building a new file system via FUSE is simple r.
It certainly is not a performance-oriented approach, but often performance is not actually that important for a specialized service. Tags: File System , fuse. Search Search.
Nikita Danilov on What is a File System? Subscribe to Blog via Email Enter your email address to subscribe to this blog and receive notifications of new posts by email. So, what makes building a file system challenging? If you build an application program, you can quit when things go bad. The user can just restart from scratch. A crashing application might leave its own files damaged and require recovery.
When a file system gets it wrong particularly a physical media file system it can wipe out all the files. A multi-threaded application needs to worry about its own data. Security — modern operating systems are written with the idea of multi-tenancy in mind. We can use lots of different isolation techniques to help mitigate some of these problems but file systems are fundamentally a layer that revolves around sharing data.
I could and have and probably will again argue that sharing data might not always be what we want to do. Remember the CAP file system?
One of its interesting features was that it did attempt to hide data and only expose it via capabilities. Performance — file systems are extremely performance sensitive.
Hard disks are slow, with high latencies and modest bandwidth. Stephen Rauch 3, 14 14 gold badges 19 19 silver badges 32 32 bronze badges. Michael Mrozek Michael Mrozek 84k 31 31 gold badges silver badges bronze badges. Where did you find that app?!?! George I put it on github — Michael Mrozek. Show 1 more comment. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
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