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d5c699c3b4
The srch compaction request building function and the srch compaction worker both have logic to recognize a valid response with no input files indicating that there's no work to do. The server unfortunately translated nr == 0 into ENOENT and send that error response to the client. This caused the client to increment error counters in the common case when there's no compaction work to perform. We'd like the error counter to reflect actual errors, we're about to check it in a test, so let's fix this up to the server sends a sucessful response with nr == 0 to indicate that there's no work to do. 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
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