82 lines
2.1 KiB
PHP
82 lines
2.1 KiB
PHP
# ==== Purpose ====
|
|
#
|
|
# Configure N servers to be in single primary mode.
|
|
#
|
|
# It does not change the current connection.
|
|
#
|
|
# ==== Usage ====
|
|
#
|
|
# --let $rpl_server_count= N
|
|
# [--let $reset_single_primary_mode=1|0]
|
|
# --source include/single_primary_mode.inc
|
|
#
|
|
# Parameters:
|
|
# $rpl_server_count
|
|
# See include/master-slave.inc
|
|
#
|
|
# $reset_single_primary_mode
|
|
# To check whether we are going to set or
|
|
# reset the single primary mode configuration
|
|
#
|
|
|
|
--let $include_filename= single_primary_mode.inc
|
|
--source include/begin_include_file.inc
|
|
|
|
if (!$reset_single_primary_mode)
|
|
{
|
|
--let $reset_single_primary_mode= 0
|
|
}
|
|
|
|
--let $_i_set_single_primary_mode= 1
|
|
--let $_saved_connection= $CURRENT_CONNECTION
|
|
|
|
--disable_query_log
|
|
|
|
while ($_i_set_single_primary_mode <= $rpl_server_count)
|
|
{
|
|
--let $rpl_connection_name= server_aux_$_i_set_single_primary_mode
|
|
--let $rpl_server_number= $_i_set_single_primary_mode
|
|
--source include/rpl_connect.inc
|
|
--let $rpl_connection_name= server_aux_$_i_set_single_primary_mode
|
|
--source include/rpl_connection.inc
|
|
|
|
# plugin cannot be running for us to setup these configs
|
|
let $_this_member_id=
|
|
query_get_value(SELECT @@SERVER_UUID, @@SERVER_UUID, 1);
|
|
let $_is_plugin_running=
|
|
`SELECT member_state IN ("ONLINE", "UNREACHABLE", "RECOVERY", "ERROR")
|
|
FROM performance_schema.replication_group_members
|
|
WHERE member_id="$_this_member_id"`;
|
|
|
|
if ($_is_plugin_running)
|
|
{
|
|
--die "Cannot set/reset single primary mode while the plugin is running!"
|
|
}
|
|
|
|
if (!$reset_single_primary_mode)
|
|
{
|
|
SET GLOBAL group_replication_enforce_update_everywhere_checks= FALSE;
|
|
SET GLOBAL group_replication_single_primary_mode= TRUE;
|
|
}
|
|
|
|
if ($reset_single_primary_mode)
|
|
{
|
|
SET GLOBAL group_replication_single_primary_mode= FALSE;
|
|
SET GLOBAL group_replication_enforce_update_everywhere_checks= TRUE;
|
|
}
|
|
|
|
--connection default
|
|
--disconnect server_aux_$_i_set_single_primary_mode
|
|
|
|
--inc $_i_set_single_primary_mode
|
|
}
|
|
|
|
--enable_query_log
|
|
|
|
--let $reset_single_primary_mode=
|
|
|
|
--connection $_saved_connection
|
|
|
|
--let $include_filename= single_primary_mode.inc
|
|
--source include/end_include_file.inc
|