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e9ad61b444
server_log_merge_free_work() is responsible for freeing all the input log trees for a log merge operation that has finished. It looks for the next item to free, frees the log btree it references, and then deletes the item. It was doing this with a full server commit for each item which can take an agonizingly long time. This changes it perform multiple deletions in a commit as long as there's plenty of alloc space. The moment the commit gets low it applies the commit and opens a new one. This sped up the deletion of a few hundred thousand log tree items from taking hours to seconds. 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