2d25fe6ad3
... by storing SLO Etag and size in sysmeta. Previously, we had to GET the manifest for every HEAD or conditional request to an SLO. Worse, since SLO PUTs require that we HEAD every segment, we'd GET all included sub-SLO manifests. This was necessary so we could recompute the large object's Etag and content-length. Since we already know both of those during PUT, we'll now store it in object sysmeta. This allows us to: * satisfy HEAD requests based purely off of the manifest's HEAD response, and * perform the If-(None-)Match comparison on the object server, without any additional subrequests. Note that the large object content-length can't just be parsed from content-type -- with fast-POST enabled, the content-type coming out of the object-server won't necessarily include swift_bytes. Also note that we must still fall back to GETting the manifest if the sysmeta headers were not found. Otherwise, we'd break existing large objects. Change-Id: Ia6ad32354105515560b005cea750aa64a88c96f9 |
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| .. | ||
| account | ||
| cli | ||
| common | ||
| container | ||
| locale | ||
| obj | ||
| proxy | ||
| __init__.py | ||