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1ca0cfacf5
Problem: The --init-rpl-role option can be set in the .cnf file or command line to configure the server replication role at startup (MASTER or SLAVE), but there was no way to check this value at runtime. This made it hard to investigate issues because we could not know which role the server was started with. Solution: I added a new read-only system variable init_rpl_role that is set after startup and kept unchanged. Example usage: * SHOW GLOBAL VARIABLES LIKE 'init_rpl_role' * SELECT @@GLOBAL.init_rpl_role Reviewed-by: ParadoxV5 <paradox.ver5@gmail.com> Reviewed-by: Georgi (Joro) Kodinov <joro@mariadb.org>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
#ifndef REPL_FAILSAFE_INCLUDED
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#define REPL_FAILSAFE_INCLUDED
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/* Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#ifdef HAVE_REPLICATION
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#include "mysql.h"
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#include <my_sys.h>
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#include "slave.h"
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extern Atomic_counter<uint32_t> binlog_dump_thread_count;
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typedef enum {RPL_AUTH_MASTER=0,RPL_IDLE_SLAVE,RPL_ACTIVE_SLAVE,
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RPL_LOST_SOLDIER,RPL_TROOP_SOLDIER,
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RPL_RECOVERY_CAPTAIN,RPL_NULL /* inactive */,
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RPL_ANY /* wild card used by change_rpl_status */ } RPL_STATUS;
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extern ulong rpl_status;
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extern ulong init_rpl_role_val;
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extern mysql_mutex_t LOCK_rpl_status;
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extern mysql_cond_t COND_rpl_status;
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extern TYPELIB rpl_role_typelib;
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extern const char* rpl_role_type[], *rpl_status_type[];
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void change_rpl_status(ulong from_status, ulong to_status);
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int find_recovery_captain(THD* thd, MYSQL* mysql);
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bool show_slave_hosts(THD* thd);
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#endif /* HAVE_REPLICATION */
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#endif /* REPL_FAILSAFE_INCLUDED */
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