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Fix a race condition in pull through cache population by removing the functionality

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of readers joining current downloads.  Concurrent requests for the same blob
will not block, but only the first instance will be comitted locally.

Signed-off-by: Richard Scothern <richard.scothern@gmail.com>
This commit is contained in:
Richard Scothern 2015-09-18 16:11:35 -07:00
parent 1039e2dc26
commit 36fa22c821
3 changed files with 260 additions and 175 deletions
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2
docs/proxy/proxyregistry.go
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@ -94,7 +94,7 @@ func (pr *proxyingRegistry) Repository(ctx context.Context, name string) (distri
}
return &proxiedRepository{
blobStore: proxyBlobStore{
blobStore: &proxyBlobStore{
localStore: localRepo.Blobs(ctx),
remoteStore: remoteRepo.Blobs(ctx),
scheduler: pr.scheduler,