0bab3e59c2
We add a cluster feature that informs whether the xxHash algorithm is supported, and allow nodes to switch to it. We use a cluster feature because older versions are not ready to receive a different digest algorithm than MD5 when answering a data request. If we ever should add a new hash algorithm, we would also need to add a new cluster feature for that algorithm. The alternative would be to add code so a coordinator could negotiate what digest algorithm to use with the set of replicas it is contacting. Fixes #2884 Signed-off-by: Duarte Nunes <duarte@scylladb.com>
33 lines
883 B
C++
33 lines
883 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,
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xxHash = 2,// default algorithm
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};
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}
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