rocksdb/unreleased_history/behavior_changes/ingest-live-file-with-move.md at a1a102ffcefab83e75b9d026d204395d00f2a582

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Changyu Bi cd6f802ccb Add a new file ingestion option link_files (#12980 )

Summary:
Add option `IngestExternalFileOptions::link_files` that hard links input files and preserves original file links after ingestion, unlike `move_files` which will unlink input files after ingestion. This can be useful when being used together with `allow_db_generated_files` to ingest files from another DB. Also reverted the change to `move_files` in https://github.com/facebook/rocksdb/issues/12959 to simplify the contract so that it will always unlink input files without exception.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12980

Test Plan: updated unit test `ExternSSTFileLinkFailFallbackTest.LinkFailFallBackExternalSst` to test that input files will not be unlinked.

Reviewed By: pdillinger

Differential Revision: D61925111

Pulled By: cbi42

fbshipit-source-id: eadaca72e1ae5288bdd195d57158466e5656fa62

2024-09-03 13:06:25 -07:00

166 B

Raw Blame History

Support ingesting db generated files using hard link, i.e. IngestExternalFileOptions::move_files/link_files and IngestExternalFileOptions::allow_db_generated_files.

166 B Raw Blame History

166 B

Raw Blame History