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################################################################################
# Test to verify the value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE in
# performance_schema.replication_group_communication_information
#
# Test:
# ====
# 1. Start GR group with 3 servers.
# 2. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
# 3. Change the value of group_replication_paxos_single_leader to 1
# on all servers and restart GR.
# 4. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
# 5. Switch to single-primary mode.
# 6. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
# 7. Change value of group_replication_paxos_single_leader to 1 on 2 servers.
# 8. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
# 9. Change communication protocol to 8.0.21.
# 10. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
# 11. Switch to multi-primary mode.
# 12. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
# 13. Change communication protocol to 8.0.27.
# 14. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
# 15. Cleanup
#
################################################################################
--source include/big_test.inc
--source include/have_group_replication_plugin.inc
# 1. Start GR group with 3 servers
--let $rpl_server_count = 3
--source include/group_replication.inc
# 2. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
--let $single_leader_capable = 0
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 3. Change the value of group_replication_paxos_single_leader to 1
# on all servers and restart GR.
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--source include/start_and_bootstrap_group_replication.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--source include/start_group_replication.inc
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--source include/start_group_replication.inc
# 4. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
--let $single_leader_capable = 1
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 5. Switch to single-primary mode.
SELECT group_replication_switch_to_single_primary_mode();
# 6. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
--let $single_leader_capable = 1
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 7. Change value of group_replication_paxos_single_leader to 1 on 2 servers.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
# 8. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
--let $single_leader_capable = 1
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 9. Change communication protocol to 8.0.21. Must change
# group_replication_paxos_single_leader to OFF
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "OFF"
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "OFF"
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "OFF"
--source include/start_and_bootstrap_group_replication.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/start_group_replication.inc
SELECT group_replication_set_communication_protocol("8.0.21");
# 10. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
--let $single_leader_capable = 0
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 11. Switch to multi-primary mode.
SELECT group_replication_switch_to_multi_primary_mode();
# 12. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 0 on all servers.
--let $single_leader_capable = 0
--source include/gr_assert_write_consensus_single_leader_capable.inc
# 13. Change communication protocol to 8.0.27.
SELECT group_replication_set_communication_protocol("8.0.27");
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "ON"
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "ON"
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--eval SET GLOBAL group_replication_paxos_single_leader = "ON"
--source include/start_and_bootstrap_group_replication.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/start_group_replication.inc
# 14. Value of WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE is 1 on all servers.
--let $single_leader_capable = 1
--source include/gr_assert_write_consensus_single_leader_capable.inc
# Cleanup
# Change the value to 0 in all servers and restart GR.
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
--let $rpl_group_replication_reset_persistent_vars= 1
--source include/group_replication_end.inc
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