2021392e25
Summary: When ConcurrentTaskLimiter is enabled and there are too many outstanding compactions, BackgroundCompaction returns Status::Busy(), which shouldn't be treat as compaction failure. This caused performance issue when outstanding compactions reached the limit. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7739 Reviewed By: cheng-chang Differential Revision: D25508319 Pulled By: ltamasi fbshipit-source-id: 3b181b16ada0ca3393cfa3a7412985764e79c719