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###############################################################################
#
# No configuration changes are allowed if the group contains a
# member of a previous version that does not support it.
#
# Test:
# 0. This test requires two servers
# 1. Use debug point to decrease minor version
# 2. Start server and bootstrap group
# 3. Join server2 to group
# 4. Executing switch to single primary mode will fail due to the version of
# one of the members
# 5. Cleanup
#
###############################################################################
--source include/have_debug.inc
--source include/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--source include/group_replication.inc
--echo
--echo # 1. Use debug point to decrease minor version
set session sql_log_bin=0;
call mtr.add_suppression("Error while executing a group configuration operation: The group has a member with a version that does not support group coordinated operations.");
set session sql_log_bin=1;
# Cause the member to broadcast and compare himself using a higher version
SET @@GLOBAL.DEBUG= '+d,group_replication_legacy_election_version';
--echo
--echo # 2. Start server and bootstrap group
--source include/start_and_bootstrap_group_replication.inc
--echo
--echo # 3. Join server2 to group
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
set session sql_log_bin=0;
call mtr.add_suppression("The function 'group_replication_switch_to_single_primary_mode' failed. The group has a member with a version that does not support group coordinated operations.");
# Server1 started with version 8.0.12, so server2(present version) is read compatible
call mtr.add_suppression("Member version is read compatible with the group.");
set session sql_log_bin=1;
--let $server2_uuid= query_get_value(SELECT @@SERVER_UUID, @@SERVER_UUID, 1)
--source include/start_group_replication.inc
--echo
--echo # 4. Executing switch to single primary mode will fail due to the version of
--echo # one of the members
--error ER_GRP_RPL_UDF_ERROR
SELECT group_replication_switch_to_single_primary_mode();
--replace_result $server2_uuid MEMBER2_UUID
--error ER_GRP_RPL_UDF_ERROR
--eval SELECT group_replication_switch_to_single_primary_mode("$server2_uuid")
--echo
--echo # 5. Cleanup
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
SET @@GLOBAL.DEBUG= '-d,group_replication_legacy_election_version';
SET @@GLOBAL.DEBUG= '+d,group_replication_compatibility_restore_version';
--source include/start_group_replication.inc
SET @@GLOBAL.DEBUG= '-d,group_replication_compatibility_restore_version';
--source include/group_replication_end.inc
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