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Improve the performance of fetching manifest blobs by checksum.

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This commit is contained in:
Jake Moshenko 2015-11-19 04:03:14 -05:00
parent 790a33589d
commit b564492ea7
2 changed files with 23 additions and 10 deletions
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10
endpoints/v2/manifest.py
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@ -287,16 +287,16 @@ def _write_manifest(namespace, repo_name, manifest):
# know which V1 images we need to synthesize and which ones are invalid.
layers = list(manifest.layers)
docker_image_ids = [mdata.v1_metadata.docker_id for mdata in layers]
parent_image_ids = [mdata.v1_metadata.parent for mdata in layers
if mdata.v1_metadata.parent]
all_image_ids = list(set(docker_image_ids + parent_image_ids))
docker_image_ids = {mdata.v1_metadata.docker_id for mdata in layers}
parent_image_ids = {mdata.v1_metadata.parent for mdata in layers
if mdata.v1_metadata.parent}
all_image_ids = list(docker_image_ids | parent_image_ids)
images_query = model.image.lookup_repository_images(repo, all_image_ids)
images_map = {image.docker_image_id: image for image in images_query}
# Lookup the storages associated with each blob in the manifest.
checksums = [str(mdata.digest) for mdata in manifest.layers]
checksums = list({str(mdata.digest) for mdata in manifest.layers})
storage_query = model.storage.lookup_repo_storages_by_content_checksum(repo, checksums)
storage_map = {storage.content_checksum: storage for storage in storage_query}