Update HISTORY.md for PR 8899 (#8905)

Summary: Pull Request resolved: https://github.com/facebook/rocksdb/pull/8905

Reviewed By: zhichao-cao

Differential Revision: D30873416

Pulled By: ltamasi

fbshipit-source-id: 6e55ec14a7fd2e562aa24cd0274e2436369923f5
This commit is contained in:
Levi Tamasi 2021-09-12 08:17:48 -07:00 committed by Facebook GitHub Bot
parent bda8d93ba9
commit 5f40b05c98

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* Added ticker statistics, "rocksdb.backup.read.bytes" and "rocksdb.backup.write.bytes", reporting how many bytes were read and written during backup.
* Added properties for BlobDB: `rocksdb.num-blob-files`, `rocksdb.blob-stats`, `rocksdb.total-blob-file-size`, and `rocksdb.live-blob-file-size`. The existing property `rocksdb.estimate_live-data-size` was also extended to include live bytes residing in blob files.
* Added two new RateLimiter IOPriorities: `Env::IO_USER`,`Env::IO_MID`. `Env::IO_USER` will have superior priority over all other RateLimiter IOPriorities without being subject to fair scheduling constraint.
* `SstFileWriter` now supports `Put`s and `Delete`s with user-defined timestamps. Note that the ingestion logic itself is not timestamp-aware yet.
### Public API change
* Remove obsolete implementation details FullKey and ParseFullKey from public API