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###############################################################################
# WL#11610 and Bug #29165756
# Test the automatic communication protocol adaptation on join.
#
# This test uses 2 servers M1, M2.
# M1 -> server1, M2 -> server2
#
# Test:
# 1. Bootstrap M1 using whatever its protocol version is.
# 2. Verify M2 joins group. Remove M2 from group.
# 3. Downgrade group protocol to 8.0.14, verify M2 joins group.
# 4. Cleanup
################################################################################
--source include/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--source include/group_replication.inc
--echo ###############################################################################
--echo # 1. Bootstrap M1 using whatever its protocol version is.
--source include/start_and_bootstrap_group_replication.inc
--echo ###############################################################################
--echo # 2. Verify M2 joins group. Remove M2 from group.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc
--source include/stop_group_replication.inc
--echo ###############################################################################
--echo # 3. Downgrade group protocol to 8.0.14, verify M2 joins group.
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
SELECT group_replication_set_communication_protocol("8.0.14");
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc
--echo ###############################################################################
--echo # 4. Cleanup
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/group_replication_end.inc
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