18078bea9b
If we're talking to just one replica, the digest is not going to be used, so better not to calculate it at all. The optimization helps with LOCAL_ONE queries where the result is large, but does not contain large blobs (many small rows). This patch adds a digest_algorithm parameter to the READ_DATA verb that can take on two values: none and MD5 (default), and sets it to none when we're reading from one replica. In the future we may add other values for more hardware-friendly digest algorithms. Message-Id: <1479380600-19206-1-git-send-email-avi@scylladb.com>
32 lines
870 B
C++
32 lines
870 B
C++
/*
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* Copyright (C) 2016 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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namespace query {
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enum class digest_algorithm : uint8_t {
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none = 0, // digest not required
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MD5 = 1, // default algorithm
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};
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}
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