mirror of
https://github.com/versity/scoutfs.git
synced 2026-01-03 10:55:20 +00:00
03fa1ce7c5
This is another example of refactoring a loop to avoid sparse warnings from doing something in the else of a failed trylock if. We want to drop and reacquire the lock if the trylock fails so we do it every loop iteration. This shouldn't be experiencing much contention because most of the cov users are usually done under locks and invalidation has excluded lock holders. So the additional lock and unlock noise should be local. Signed-off-by: Zach Brown <zab@versity.com>
Introduction
scoutfs is a clustered in-kernel Linux filesystem designed to support large archival systems. It features additional interfaces and metadata so that archive agents can perform their maintenance workflows without walking all the files in the namespace. Its cluster support lets deployments add nodes to satisfy archival tier bandwidth targets.
The design goal is to reach file populations in the trillions, with the archival bandwidth to match, while remaining operational and responsive.
Highlights of the design and implementation include:
- Fully consistent POSIX semantics between nodes
- Atomic transactions to maintain consistent persistent structures
- Integrated archival metadata replaces syncing to external databases
- Dynamic seperation of resources lets nodes write in parallel
- 64bit throughout; no limits on file or directory sizes or counts
- Open GPLv2 implementation
Community Mailing List
Please join us on the open scoutfs-devel@scoutfs.org mailing list hosted on Google Groups