102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/*
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*
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* Modified by ScyllaDB
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#pragma once
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#include "gms/inet_address.hh"
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#include "locator/token_metadata.hh"
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#include "dht/token.hh"
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#include <unordered_set>
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#include "replica/database_fwd.hh"
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#include "streaming/stream_reason.hh"
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#include "service/topology_guard.hh"
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#include <seastar/core/distributed.hh>
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#include <seastar/core/abort_source.hh>
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namespace streaming { class stream_manager; }
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namespace gms { class gossiper; }
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namespace db { class config; }
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namespace dht {
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using check_token_endpoint = bool_class<struct check_token_endpoint_tag>;
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class boot_strapper {
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using inet_address = gms::inet_address;
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using token_metadata = locator::token_metadata;
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using token_metadata_ptr = locator::token_metadata_ptr;
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using token = dht::token;
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distributed<replica::database>& _db;
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sharded<streaming::stream_manager>& _stream_manager;
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abort_source& _abort_source;
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/* endpoint that needs to be bootstrapped */
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locator::host_id _address;
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/* its DC/RACK info */
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locator::endpoint_dc_rack _dr;
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/* token of the node being bootstrapped. */
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std::unordered_set<token> _tokens;
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const locator::token_metadata_ptr _token_metadata_ptr;
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public:
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boot_strapper(distributed<replica::database>& db, sharded<streaming::stream_manager>& sm, abort_source& abort_source,
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locator::host_id addr, locator::endpoint_dc_rack dr, std::unordered_set<token> tokens, const token_metadata_ptr tmptr)
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: _db(db)
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, _stream_manager(sm)
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, _abort_source(abort_source)
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, _address(addr)
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, _dr(std::move(dr))
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, _tokens(tokens)
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, _token_metadata_ptr(std::move(tmptr)) {
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}
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future<> bootstrap(streaming::stream_reason reason, gms::gossiper& gossiper, service::frozen_topology_guard, inet_address replace_address = {});
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/**
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* if initialtoken was specified, use that (split on comma).
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* otherwise, if num_tokens == 1, pick a token to assume half the load of the most-loaded node.
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* else choose num_tokens tokens at random
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*/
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static std::unordered_set<token> get_bootstrap_tokens(const token_metadata_ptr tmptr, sstring initialtoken, uint32_t num_tokens, check_token_endpoint check);
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static std::unordered_set<token> get_bootstrap_tokens(token_metadata_ptr tmptr, const db::config& cfg, check_token_endpoint check);
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/**
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* Same as above but does not consult initialtoken config
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*/
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static std::unordered_set<token> get_random_bootstrap_tokens(const token_metadata_ptr tmptr, size_t num_tokens);
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static std::unordered_set<token> get_random_tokens(const token_metadata_ptr tmptr, size_t num_tokens);
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#if 0
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public static class StringSerializer implements IVersionedSerializer<String>
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{
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public static final StringSerializer instance = new StringSerializer();
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public void serialize(String s, DataOutputPlus out, int version) throws IOException
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{
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out.writeUTF(s);
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}
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public String deserialize(DataInput in, int version) throws IOException
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{
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return in.readUTF();
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}
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public long serializedSize(String s, int version)
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{
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return TypeSizes.NATIVE.sizeof(s);
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}
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}
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#endif
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private:
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const token_metadata& get_token_metadata() {
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return *_token_metadata_ptr;
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}
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};
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} // namespace dht
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