{"id":"hash-index-sync-writes-controls-fsync","text":"In hash-index-storage Bitcask, the `sync_writes` flag controls whether each `_write_record` call fsyncs to disk; when `False`, recently written records may be lost on crash.","truth_value":"IN","source":"entries/2026/05/29/hash-index-storage-bitcask-_write_record.md","source_url":"","source_hash":"","justifications":[],"dependents":["hash-index-survives-restart"],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"hash-index-sync-writes-controls-fsync","truth_value":"IN","reason":"premise"}]}}