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ListObjects Metadata Caching (#10648)

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Design: https://gist.github.com/klauspost/025c09b48ed4a1293c917cecfabdf21c

Gist of improvements:

* Cross-server caching and listing will use the same data across servers and requests.
* Lists can be arbitrarily resumed at a constant speed.
* Metadata for all files scanned is stored for streaming retrieval.
* The existing bloom filters controlled by the crawler is used for validating caches.
* Concurrent requests for the same data (or parts of it) will not spawn additional walkers.
* Listing a subdirectory of an existing recursive cache will use the cache.
* All listing operations are fully streamable so the number of objects in a bucket no 
  longer dictates the amount of memory.
* Listings can be handled by any server within the cluster.
* Caches are cleaned up when out of date or superseded by a more recent one.
This commit is contained in:
Klaus Post
2020-10-28 09:18:35 -07:00
committed by GitHub
parent 51222cc664
commit a982baff27
65 changed files with 6328 additions and 742 deletions
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cmd/xl-storage-disk-id-check.go
+2 -2
View File
@@ -237,12 +237,12 @@ func (p *xlStorageDiskIDCheck) CheckFile(ctx context.Context, volume string, pat
return p.storage.CheckFile(ctx, volume, path)
}
func (p *xlStorageDiskIDCheck) DeleteFile(ctx context.Context, volume string, path string) (err error) {
func (p *xlStorageDiskIDCheck) Delete(ctx context.Context, volume string, path string, recursive bool) (err error) {
if err = p.checkDiskStale(); err != nil {
return err
}
return p.storage.DeleteFile(ctx, volume, path)
return p.storage.Delete(ctx, volume, path, recursive)
}
func (p *xlStorageDiskIDCheck) DeleteVersions(ctx context.Context, volume string, versions []FileInfo) (errs []error) {