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###############################################################################
#
# When changing to single primary mode with no appointed primary,
# the new primary member shall be elected using weights or
# lexicographic order when all weights are equal.
#
# Test:
# 0. This test needs two servers
# 1. Store uuid from server1 and set election weight to 50
# 2. Store uuid from server2 and set election weight to 90
# 3. Execute action switch to single primary mode and confirm server2 is
# the primary
# 4. Execute action switch to multiple primary mode
# 5. Set election weight on server2 to 50
# 6. Execute action switch to single primary mode
# 7. Confirm server with lower lexical uuid is the new primary server
# 8. Cleanup
#
###############################################################################
--source include/have_group_replication_plugin.inc
--source include/group_replication.inc
--echo
--echo # 1. Store uuid from server1 and set election weight to 50
--let $server1_uuid= query_get_value(SELECT @@SERVER_UUID, @@SERVER_UUID, 1)
SET @@GLOBAL.group_replication_member_weight= 50;
--echo
--echo # 2. Store uuid from server2 and set election weight to 90
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $server2_uuid= query_get_value(SELECT @@SERVER_UUID, @@SERVER_UUID, 1)
SET @@GLOBAL.group_replication_member_weight= 90;
--echo
--echo # 3. Execute action switch to single primary mode and confirm server2 is
--echo # the primary
SELECT group_replication_switch_to_single_primary_mode();
--source include/gr_assert_primary_member.inc
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/gr_assert_secondary_member.inc
--echo
--echo # 4. Execute action switch to multiple primary mode
SELECT group_replication_switch_to_multi_primary_mode();
--source include/gr_assert_multi_primary_mode.inc
--echo
--echo # 5. Set election weight on server2 to 50
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
# Wait for the action to be declared as not running on server2
--let $wait_condition=SELECT COUNT(*)=0 FROM performance_schema.events_stages_current WHERE event_name LIKE "%stage/group_rpl%" AND event_name NOT LIKE "%stage/group_rpl/Group Replication%"
--source include/wait_condition.inc
SET @@GLOBAL.group_replication_member_weight= 50;
--echo
--echo # 6. Execute action switch to single primary mode
SELECT group_replication_switch_to_single_primary_mode();
--echo
--echo # 7. Confirm server with lower lexical uuid is the new primary server
--let $server_conn= server1
--let $server_conn2= server2
if(`SELECT "$server1_uuid" > "$server2_uuid"`)
{
--let $server_conn= server2
--let $server_conn2= server1
}
--connection $server_conn
--source include/gr_assert_primary_member.inc
--connection $server_conn2
--source include/gr_assert_secondary_member.inc
--echo
--echo # 8. Cleanup
--let $rpl_group_replication_single_primary_mode=1
--let $rpl_group_replication_reset_persistent_vars=1
--source include/group_replication_end.inc
|
