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Merge pull request #4761 from MichaelEischer/fix-cache-race 

cache: ignore ErrNotExist during cleanup of old files
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Michael Eischer 2024-04-22 21:46:06 +02:00 committed by GitHub
parent f7632de3d6 0747cf5319
commit 2e6c43c695
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2 changed files with 10 additions and 1 deletions
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8
changelog/unreleased/issue-4760 Normal file
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@ -0,0 +1,8 @@
Bugfix: Fix possible error on concurrent cache cleanup
If multiple restic processes concurrently cleaned up no longer existing files
from the cache, this could cause some of the processes to fail with an `no such
file or directory` error. This has been fixed.
https://github.com/restic/restic/issues/4760
https://github.com/restic/restic/pull/4761

3
internal/cache/file.go vendored
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@ -165,7 +165,8 @@ func (c *Cache) Clear(t restic.FileType, valid restic.IDSet) error {
continue
}
if err = fs.Remove(c.filename(backend.Handle{Type: t, Name: id.String()})); err != nil {
// ignore ErrNotExist to gracefully handle multiple processes running Clear() concurrently
if err = fs.Remove(c.filename(backend.Handle{Type: t, Name: id.String()})); err != nil && !errors.Is(err, os.ErrNotExist) {
return err
}
}