Nhat Nguyen created LUCENE-8324:
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Summary: Unreferenced files of dropped segments should be released
Key: LUCENE-8324
URL: https://issues.apache.org/jira/browse/LUCENE-8324
Project: Lucene - Core
Issue Type: Bug
Components: core/index
Affects Versions: 7.4, master (8.0)
Reporter: Nhat Nguyen
Attachments: release-files.patch
{quote} This has the side-effect that flushed segments that are 100% hard
deleted are also
cleaned up right after they are flushed, previously these segments were sticking
around for a while until they got picked for a merge or received another
delete.{quote}
Since LUCENE-8253, a fully deleted segment is dropped immediately when it's
flushed, however, its files might be kept around even after a commit. In other
words, we may have unreferenced files which are retained by Deleter.
I am not entirely sure if we should fix this but it's nice to have a consistent
content between current files and commit points as before.
I attached a failed test for this.
/cc [~simonw]
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