v.23.9Improvement

Fix issue with EmbeddedRocksDB table engine not closing files on NFS after DROP TABLE

Official CH changelog text
Fix a subtle issue with a rarely used EmbeddedRocksDB table engine in an extremely rare scenario: sometimes the EmbeddedRocksDB table engine does not close files correctly in NFS after running DROP TABLE. #53502 (Mingliang Pan).
Fix file closing issue in EmbeddedRocksDB table engine on NFS after DROP TABLE

Why it matters

Resolve a subtle bug in the rarely used EmbeddedRocksDB table engine where files were not properly closed on NFS after executing DROP TABLE, preventing potential resource leaks and improving stability in this environment.

How to use it

This fix is applied automatically in the new ClickHouse version. Users employing the EmbeddedRocksDB table engine on NFS do not need to change their workflow; the table engine will now correctly close files after dropping tables.

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