0abd2c1e52
The boolean bit says whether "the system" should prefer connecting to the address gossiper around via INTERNAL_IP. Currently only gossiping property file snitch allows to tune it and ec2-multiregion snitch prefers internal IP unconditionally. So exporting consists of 2 pieces: - add prefer_local() snitch method that's false by default or returns the (existing) _prefer_local bit for production snitch base - set the _prefer_local to true by ec2-multiregion snitch While at it the _prefer_local is moved to production_snitch_base for uniformity with the new prefer_local() call Signed-off-by: Pavel Emelyanov <xemul@scylladb.com>
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
/*
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* SPDX-License-Identifier: Apache-2.0
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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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#pragma once
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#include "locator/production_snitch_base.hh"
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#include <seastar/http/response_parser.hh>
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#include <seastar/net/api.hh>
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namespace locator {
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class ec2_snitch : public production_snitch_base {
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public:
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static constexpr const char* ZONE_NAME_QUERY_REQ = "/latest/meta-data/placement/availability-zone";
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static constexpr const char* AWS_QUERY_SERVER_ADDR = "169.254.169.254";
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static constexpr uint16_t AWS_QUERY_SERVER_PORT = 80;
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ec2_snitch(const snitch_config&);
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virtual future<> start() override;
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virtual sstring get_name() const override {
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return "org.apache.cassandra.locator.Ec2Snitch";
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}
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protected:
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future<> load_config(bool prefer_local);
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future<sstring> aws_api_call(sstring addr, uint16_t port, const sstring cmd);
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future<sstring> read_property_file();
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private:
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connected_socket _sd;
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input_stream<char> _in;
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output_stream<char> _out;
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http_response_parser _parser;
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sstring _zone_req;
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};
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} // namespace locator
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