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Optimize lookup of shared global blobs

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Currently, we only have one (the shared empty layer), but this should make the blob lookups for repositories significantly faster, as we won't need to do the massive join.
This commit is contained in:
Joseph Schorr 2019-02-14 12:46:42 -05:00
parent 7beac643ec
commit f75f315037
6 changed files with 78 additions and 24 deletions
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8
data/registry_model/registry_oci_model.py
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@ -565,11 +565,13 @@ class OCIModel(SharedModel, RegistryDataInterface):
there may be multiple records in the same repository for the same blob digest, so the return
value of this function may change.
"""
image_storage = oci.blob.get_repository_blob_by_digest(repository_ref._db_id, blob_digest)
image_storage = self._get_shared_storage(blob_digest)
if image_storage is None:
return None
image_storage = oci.blob.get_repository_blob_by_digest(repository_ref._db_id, blob_digest)
if image_storage is None:
return None
assert image_storage.cas_path is not None
assert image_storage.cas_path is not None
placements = None
if include_placements: