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aa48a8ccfc
During log compaction, the SRCH_COMPACT_LOGS_PAD_SAFE trigger was generating inode numbers that were not in sorted order. This resulted in later failures during srch-basic-functionality, because we were winding up with out of order first/last pairs and merging incorrectly. Instead, reuse the single entry in the block repeatedly, generating zero-padded pairs of this entry that are interpreted as create/delete and vanish during searching and merging. These aren't encoded in the normal way, but the extra zeroes are ignored during the decoding phase. Signed-off-by: Chris Kirby <ckirby@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
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