vigyasharma commented on PR #1012:
URL: https://github.com/apache/lucene/pull/1012#issuecomment-1179579087
Right, we can remove the TODO, as the calling thread in addIndexes now takes
care of cleaning up any pending non-CFS files. Updated the PR.
> did we change something that invalidated the comment ("they were never
registered ...")?
I just reworded it to "they are not tracked anymore"..
**Some overall context:**
Any partially created files from a write failure in `createCompoundFile()`
get cleaned up [inside that
method](https://github.com/apache/lucene/blob/main/lucene/core/src/java/org/apache/lucene/index/IndexWriter.java#L5741-L5749).
When we return from createCompoundFile(), we just need to delete the old
non-CFS files. Since createCFS() resets `merge.info.files()`, on success, these
files become untracked. So we keep them in a local variable and delete them
directly. On failure, the calling thread in `addIndexes()` takes care of this
deletion.
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