mirror of
https://github.com/versity/scoutfs.git
synced 2026-01-06 04:04:59 +00:00
7b65767803
Add tracking and reporting of delays in sending or receiving quorum heartbeat messages. We measure the time between back to back sends or receives of heartbeat messages. We record these delays truncated down to second granularity in the quorum sysfs status file. We log messages to the console for each longest measured delay up to the maximum configurable heartbeat timeout. 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