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7cbe5e3af8
The `join_node_request` and `join_node_response` RPCs are added: - `join_node_request` is sent from the joining node to any node in the cluster. It contains some initial parameters that will be verified by the receiving node, or the topology coordinator - notably, it contains a list of cluster features supported by the joining node. - `join_node_response` is sent from the topology coordinator to the joining node to tell it about the the outcome of the verification.
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
/*
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* Copyright 2023-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <set>
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#include <seastar/core/sstring.hh>
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#include "raft/raft.hh"
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namespace service {
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struct join_node_request_params {
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raft::server_id host_id;
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std::optional<raft::server_id> replaced_id;
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std::vector<sstring> ignore_nodes;
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sstring cluster_name;
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sstring snitch_name;
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sstring datacenter;
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sstring rack;
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sstring release_version;
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uint32_t num_tokens;
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uint32_t shard_count;
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uint32_t ignore_msb;
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std::vector<sstring> supported_features;
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};
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struct join_node_request_result {
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// Request was successfully placed and will be processed
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// by the topology coordinator.
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struct ok {};
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// The request was immediately rejected, most likely due to some
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// parameters being incorrect or incompatible with the cluster.
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struct rejected {
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sstring reason;
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};
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std::variant<ok, rejected> result;
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};
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struct join_node_response_params {
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// The topology coordinator accepts and wants to add the joining node
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// to group 0 and to the cluster in general.
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struct accepted {};
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// The topology coordinator rejects the node, most likely due to some
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// parameters being incorrect or incompatible with the cluster.
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struct rejected {
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sstring reason;
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};
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std::variant<accepted, rejected> response;
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};
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struct join_node_response_result {};
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}
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