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Cloud Storage FUSE is an open-source adapter that allows you to mount Cloud Storage buckets as local file systems on Linux and macOS machines. It presents objects in a bucket as files and prefixes as directories, enabling applications that expect a POSIX file system interface to read from and write to Cloud Storage without modification.
FUSE (Filesystem in Userspace) is a Linux kernel module that allows non-privileged users to create file systems without editing kernel code. Cloud Storage FUSE (gcsfuse) uses this interface to translate file system operations (open, read, write, close) into Cloud Storage API calls.
| Feature | Detail |
|---|---|
| Protocol | Translates POSIX file operations to Cloud Storage REST API calls |
| Platform | Linux and macOS |
| Authentication | Uses Application Default Credentials or service account keys |
| Performance | Suitable for data analytics and batch processing; not for latency-sensitive applications |
| Consistency | Eventually consistent for some operations; not a replacement for a POSIX file system |
| Cost | Free to use; you pay only for the underlying Cloud Storage operations |
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