fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph

hx235 45175ca2e1 Charge read to rate limiter in BackupEngine (#8722 An error occurred ) ... Summary: Context: While all the non-trivial write operations in BackupEngine go through the RateLimiter, reads currently do not. In general, this is not a huge issue because (especially since some I/O efficiency fixes) reads in BackupEngine are mostly limited by corresponding writes, for both backup and restore. But in principle we should charge the RateLimiter for reads as well. - Charged read operations in `BackupEngineImpl::CopyOrCreateFile`, `BackupEngineImpl::ReadFileAndComputeChecksum`, `BackupEngineImpl::BackupMeta::LoadFromFile` and `BackupEngineImpl::GetFileDbIdentities` Pull Request resolved: https://github.com/facebook/rocksdb/pull/8722 Test Plan: - Passed existing tests - Passed added unit tests Reviewed By: pdillinger Differential Revision: D30610464 Pulled By: hx235 fbshipit-source-id: 9b08c9387159a5385c8d390d6666377a0d0117e5		4 years ago
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backupable_db.cc	Charge read to rate limiter in BackupEngine (#8722 An error occurred )	4 years ago
backupable_db_impl.h	Begin forward compatibility for new backup meta schema (#8069 An error occurred )	4 years ago
backupable_db_test.cc	Charge read to rate limiter in BackupEngine (#8722 An error occurred )	4 years ago