Enable 2 round trip receipts#999
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ashamis merged 2 commits intomicrosoft:masterfrom Apr 1, 2020
ashamis:nonce_4
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nonce_4@6897 aka 20200401.9 vs master ewma over 50 builds from 6095 to 6892 |
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nonce_4@6559 aka 20200326.36 vs master ewma over 30 builds from 6121 to 6551 |
olgavrou
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olgavrou
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ashamis
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achamayou
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olgavrou
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Each pre-prepare and prepare are given a hash of a nonce and then in the reply we send the plain text nonce to the client-proxy.
To get two-round-trips latency, replicas would return a reply to the client-proxy after getting a pre-prepare and 2f matching prepares. The client-proxy will get its reply and receipt before the request is committed in the ledger, but we guarantee that the request is eventually committed to the ledger or we can prove that some replicas are malicious.