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rocksdb/unreleased_history/bug_fixes/fallback_only_unsupported.md
Hui Xiao fce04587b8 Only fallback to RocksDB internal prefetching on unsupported FS prefetching (#11897) 
Summary:
**Context/Summary:**
https://github.com/facebook/rocksdb/pull/11631 introduced an undesired fallback behavior to RocksDB internal prefetching even when FS prefetching return non-OK status other than "Unsupported". We only want to fall back when FS prefetching is not supported.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11897

Test Plan: CI

Reviewed By: ajkr

Differential Revision: D49667055

Pulled By: hx235

fbshipit-source-id: fa36e4e5d6dc9507080217035f9d6ff8e4abda28
2023-09-26 18:44:41 -07:00

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Fixed a bug where compaction read under non direct IO still falls back to RocksDB internal prefetching after file system's prefetching returns non-OK status other than Status::NotSupported()