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scylladb/locator/simple_snitch.hh
Avi Kivity f3eade2f62 treewide: relicense to ScyllaDB-Source-Available-1.0
Drop the AGPL license in favor of a source-available license.
See the blog post [1] for details.

[1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
2024-12-18 17:45:13 +02:00

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/*
*
* Modified by ScyllaDB
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.0 and Apache-2.0)
*/
#pragma once
#include "snitch_base.hh"
namespace locator {
/**
* A simple endpoint snitch implementation that treats Strategy order as
* proximity, allowing non-read-repaired reads to prefer a single endpoint,
* which improves cache locality.
*/
struct simple_snitch : public snitch_base {
simple_snitch(const snitch_config& cfg)
: snitch_base(cfg)
{
_my_dc = get_datacenter();
_my_rack = get_rack();
// This snitch is ready on creation
set_snitch_ready();
}
virtual sstring get_rack() const override {
return "rack1";
}
virtual sstring get_datacenter() const override {
return "datacenter1";
}
virtual sstring get_name() const override {
return "org.apache.cassandra.locator.SimpleSnitch";
}
};
}