981e8c621f
Summary: Changes in https://github.com/facebook/rocksdb/issues/9453 could trigger ``` stderr: Error: prefixpercent is non-zero while prefix_size is not positive! ``` Pull Request resolved: https://github.com/facebook/rocksdb/pull/9461 Test Plan: run `make blackbox_crashtest` for a long time Reviewed By: ajkr Differential Revision: D33830751 Pulled By: pdillinger fbshipit-source-id: be88377dcaa47e4bb7adb0347762639eff8f1476