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|
################################################################################
#
# This test shall verify that the group_replication_paxos_single_leader system
# variable correctly enables/disables the single-leader behavior introduced in
# WL#9149 and also that a member with a different value on this system variable
# cannot join the group.
#
# Test:
# 0) Verify that the default value of group_replication_paxos_single_leader is
# true
# 1) The test requires three servers.
# 2) Verify that the UUID present in WRITE_CONSENSUS_LEADERS_MEMBER_ID_PREFERRED
# and in WRITE_CONSENSUS_LEADERS_MEMBER_ID_ACTIVE is the UUID of the primary
# 3) Change the value of group_replication_paxos_single_leader to false
# 4) Verify that the value of the new sysvar is false
# 5) The group should still be using single-leader
# 6) Reboot the plugin (add only 2 of the members)
# 7) Verify that the UUIDs contained in
# WRITE_CONSENSUS_LEADERS_MEMBER_ID_PREFERRED and in
# WRITE_CONSENSUS_LEADERS_MEMBER_ID_ACTIVE contain all the UUIDs of all the
# members in the group
# 8) Change the sysvar value on the third member to true
# 9) Try to add the third member
# 9.1) Adding the third member should fail
# 10) Cleanup.
#
################################################################################
--source include/big_test.inc
--source include/have_debug.inc
--source include/linux.inc
--source include/have_group_replication_plugin.inc
--let $rpl_server_count = 3
--let $rpl_group_replication_single_primary_mode=1
--let $rpl_skip_group_replication_start=1
--source include/group_replication.inc
--let $rpl_connection_name = server3
--source include/rpl_connection.inc
SET sql_log_bin = 0;
call mtr.add_suppression("This member is configured with a group_replication_paxos_single_leader option value of*");
SET sql_log_bin = 1;
--echo
--echo ####
--echo # 0) Verify that the default value of
--echo # group_replication_paxos_single_leader is true
--echo ####
--echo
--let $rpl_connection_name = server1
--source include/rpl_connection.inc
SET @@GLOBAL.group_replication_paxos_single_leader = default;
--let $assert_text = The default of group_replication_paxos_single_leader should be 0
--let $assert_cond = [SELECT @@GLOBAL.group_replication_paxos_single_leader] = 0
--source include/assert.inc
--echo
--echo ####
--echo # 1) The test requires three servers.
--echo ####
--echo
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
--source include/start_group_replication.inc
--let $rpl_connection_name = server3
--source include/rpl_connection.inc
--source include/start_group_replication.inc
--echo
--echo ####
--echo # 2) Verify that the UUID present in
--echo # WRITE_CONSENSUS_LEADERS_MEMBER_ID_PREFERRED and in
--echo # WRITE_CONSENSUS_LEADERS_MEMBER_ID_ACTIVE is the UUID of the primary
--echo ####
--echo
--let $rpl_connection_name = server1
--source include/rpl_connection.inc
--let $server1_uuid = `SELECT @@server_uuid`
# Verify preferred and active members of member 1
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED FROM performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
# Verify preferred and active members of member 2
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
# Verify preferred and active members of member 3
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
--echo
--echo ####
--echo # 3) Change the value of group_replication_paxos_single_leader to false
--echo ####
--echo
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 0;
--echo
--echo ####
--echo # 4) Verify that the value of the new sysvar is false
--echo ####
--echo
--let $assert_text = The value of group_replication_paxos_single_leader should be 0
--let $assert_cond = [SELECT @@GLOBAL.group_replication_paxos_single_leader] = 0
--source include/assert.inc
--echo
--echo ####
--echo # 5) The group should still be using single-leader
--echo ####
--echo
--let $server1_uuid = `SELECT @@server_uuid`
# Verify preferred and active members of member 1
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED FROM performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
# Verify preferred and active members of member 2
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
# Verify preferred and active members of member 3
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_PREFERRED from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = The first server's UUID should be the only UUID in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $assert_cond = "[SELECT WRITE_CONSENSUS_LEADERS_ACTUAL from performance_schema.replication_group_communication_information]" = "$server1_uuid"
--source include/assert.inc
--let $assert_text = Single Leader must be enabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "1"
--source include/assert.inc
--echo
--echo ####
--echo # 6) Reboot the plugin (add only 2 of the members)
--echo ####
--echo
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--let $server3_uuid = `SELECT @@GLOBAL.server_uuid`
--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
--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 = 0;
--source include/start_group_replication.inc
--echo
--echo ####
--echo # 7) Verify that the UUIDs contained in
--echo # WRITE_CONSENSUS_LEADERS_MEMBER_ID_PREFERRED and in
--echo # WRITE_CONSENSUS_LEADERS_MEMBER_ID_ACTIVE contain all the UUIDs of all
--echo # the members in the group
--echo ####
--echo
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
# Verify preferred and active members of member 1
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = Single Leader must be disabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "0"
--source include/assert.inc
# Verify preferred and active members of member 2
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = Single Leader must be disabled
--let $assert_cond = "[SELECT WRITE_CONSENSUS_SINGLE_LEADER_CAPABLE from performance_schema.replication_group_communication_information]" = "0"
--source include/assert.inc
--echo
--echo ####
--echo # 8) Change the sysvar value on the third member to true
--echo ####
--echo
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--echo
--echo ####
--echo # 9) Try to add the third member
--echo ####
--echo
--error ER_GROUP_REPLICATION_CONFIGURATION
START GROUP_REPLICATION;
# The third member should not have been added
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = Member 3 should not have been added to the group
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_members WHERE MEMBER_ID LIKE '%$server3_uuid%'`
--let $assert_cond = "$num_rows" = "0"
--source include/assert.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_PREFERRED
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_PREFERRED LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = All members should be in WRITE_CONSENSUS_LEADERS_ACTUAL
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_communication_information WHERE WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server1_uuid%' AND WRITE_CONSENSUS_LEADERS_ACTUAL LIKE '%$server2_uuid%'`
--let $assert_cond = "$num_rows" = "1"
--source include/assert.inc
--let $assert_text = Member 3 should not have been added to the group
--let $num_rows = `SELECT COUNT(*) FROM performance_schema.replication_group_members WHERE MEMBER_ID LIKE '%$server3_uuid%'`
--let $assert_cond = "$num_rows" = "0"
--source include/assert.inc
--echo
--echo ####
--echo # 10) Cleanup.
--echo ####
--echo
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
SET GLOBAL group_replication_paxos_single_leader = 1;
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/group_replication_end.inc
|
