6b556859ce
From system.membership we can find out what server exist in the
cluster while system.nodeinfo contains information about those
servers. If a node goes down, it will disappear from system.nodeinfo,
but not from system.membership. Consequently, we must start from
system.membership and then fetch more information from system.nodeinfo.
Incidentally, a query like
SELECT ms.nid, ni.iface_ip
FROM system.membership AS ms
LEFT JOIN system.nodeinfo AS ni ON ms.nid=ni.nodeid;
should provide all information in one go, but it seems that such joins
are not supported on the system tables.
41 lines
786 B
C++
41 lines
786 B
C++
/*
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* Copyright (c) 2018 MariaDB Corporation Ab
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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*
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* Change Date: 2022-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2 or later of the General
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* Public License.
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*/
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#pragma once
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#include "clustrixmon.hh"
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#include <string>
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namespace Clustrix
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{
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enum class Status
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{
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QUORUM,
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STATIC,
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UNKNOWN
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};
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Status status_from_string(const std::string& status);
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std::string to_string(Status status);
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enum class SubState
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{
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NORMAL,
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UNKNOWN
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};
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SubState substate_from_string(const std::string& substate);
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std::string to_string(SubState sub_state);
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}
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