PXB-3498: [xbcloud] Fix HTTP request signing when retrying #1650
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imrivera
commented
Apr 10, 2025
| delay, name.c_str(), count); | ||
| std::this_thread::sleep_for(std::chrono::milliseconds(delay)); | ||
| resp->reset_body(); | ||
| client->signer->sign_request(client->hostname(container), container, *req, |
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This is the main problem. These parameters are correct for S3, but not for Azure (for Azure they should be container and name)
imrivera
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Thank you for the contribution: I've created JIRA for this issue: https://perconadev.atlassian.net/browse/PXB-3498 |
satya-bodapati
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Using
xbcloud, when there is a problem downloading a file and it's going to be retried, the new request should be signed again for S3 and Azure. But the parameters used were only valid for S3.That means that if you're downloading from Azure, once a file fails to download, the retry is going to miscalculate the authorization token, that would receive a
403 Unauthorizedand the whole downloading process stop.This PR fixes that problem. The approach is encapsulating the signing process and the related data in a
std::functionin theHttp_requestobject. This way, you just have to callreq->sign()to resign the request, you don't need to know what data it needs, etc.This bug was found in a production service. The fix was also tested in the same service with successful result.