################################################################################
# Validate that when the sender to which the receiver is connected loses
# majority, the receiver will switch to another healthy sender. Also validate
# that the sender which lost majority still has its connection details in
# replication_asynchronous_connection_failover table.
#
# Test:
#  0. The test requires 4 servers:
#       server1: group primary
#       server2: group secondary
#       server3: single server
#       server4: replica server
#  1. Deploy a 2 members group in single primary mode.
#  2. Configure replica to manage the asynchronous connection
#     to group and server3.
#  3. Create and start the managed channel connected to server1.
#  4. Kill server1, the group will block due no majority.
#  5. Despite server2 has the second biggest weight, since
#     the group has no majority, the replica will connect
#     to server3.
#  6. Wait 30 seconds and validate that replica is still connected
#     to server3.
#  7. Assert that group information did not change, since it
#     lost the majority.
#  8. Restore the majority on the group by forcing its membership
#     to only server2.
#  9. Since server2 has bigger weight than server3, the managed
#     channel must reconnect to server2 now that the group has
#     majority.
# 10. Clean up.
################################################################################
--source include/big_test.inc
--source include/not_valgrind.inc
--source include/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--let $rpl_server_count= 4
--let $group_replication_group_name= aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
--source include/group_replication.inc


--echo
--echo ############################################################
--echo # 1. Deploy a 2 members group in single primary mode.
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--let $server1_uuid= `SELECT @@server_uuid`
--source include/start_and_bootstrap_group_replication.inc

--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $server2_uuid= `SELECT @@server_uuid`
--source include/start_group_replication.inc


--echo
--echo ############################################################
--echo # 2. Configure replica to manage the asynchronous connection
--echo #    to group and server3.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc

--replace_result $SERVER_MYPORT_1 SERVER_MYPORT_1 $group_replication_group_name GROUP_NAME
--eval SELECT asynchronous_connection_failover_add_managed('ch1', 'GroupReplication', '$group_replication_group_name', '127.0.0.1', $SERVER_MYPORT_1, '', 90, 70);

--replace_result $SERVER_MYPORT_3 SERVER_MYPORT_3
--eval SELECT asynchronous_connection_failover_add_source('ch1', '127.0.0.1', $SERVER_MYPORT_3, '', 50);

--let $assert_text= 'There is one row in performance_schema.replication_asynchronous_connection_failover for server1'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover WHERE port=$SERVER_MYPORT_1, count, 1] = 1
--source include/assert.inc

--let $assert_text= 'There is one row in performance_schema.replication_asynchronous_connection_failover for server3'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover WHERE port=$SERVER_MYPORT_3, count, 1] = 1
--source include/assert.inc

--let $assert_text= 'There is one row in performance_schema.replication_asynchronous_connection_failover_managed for server1'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover_managed WHERE managed_name="$group_replication_group_name", count, 1] = 1
--source include/assert.inc


--echo
--echo ############################################################
--echo # 3. Create and start the managed channel connected to server1.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc
--replace_result $SERVER_MYPORT_1 SERVER_1_PORT
--eval CHANGE REPLICATION SOURCE TO SOURCE_HOST='127.0.0.1', SOURCE_USER='root', SOURCE_AUTO_POSITION=1, SOURCE_CONNECTION_AUTO_FAILOVER=1, SOURCE_PORT=$SERVER_MYPORT_1, SOURCE_RETRY_COUNT=0 FOR CHANNEL 'ch1'

--let $rpl_channel_name='ch1'
--source include/start_slave.inc
--let $rpl_channel_name=

--let $assert_text= Verify channel ch1 IO_THREAD is ON and connected to server1
--let $assert_cond= "[SELECT SERVICE_STATE FROM performance_schema.replication_connection_status WHERE channel_name=\'ch1\' AND source_uuid=\'$server1_uuid\', SERVICE_STATE, 1]" = "ON"
--source include/assert.inc

--let $wait_condition= SELECT COUNT(*)=3 FROM performance_schema.replication_asynchronous_connection_failover
--source include/wait_condition.inc


--echo
--echo ############################################################
--echo # 4. Kill server1, the group will block due no majority.
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/kill_and_restart_mysqld.inc

--let $rpl_server_number= 1
--source include/rpl_reconnect.inc

--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $group_replication_member_state= UNREACHABLE
--let $group_replication_member_id= $server1_uuid
--source include/gr_wait_for_member_state.inc


--echo
--echo ############################################################
--echo # 5. Despite server2 has the second biggest weight, since
--echo #    the group has no majority, the replica will connect
--echo #    to server3.
--let $rpl_connection_name= server3
--source include/rpl_connection.inc
--let $server3_uuid= `SELECT @@server_uuid`

--let $rpl_connection_name= server4
--source include/rpl_connection.inc
--echo Wait until ch1 IO_THREAD is connected to server3
--let $wait_condition= SELECT service_state="ON" FROM performance_schema.replication_connection_status WHERE channel_name="ch1" AND source_uuid="$server3_uuid"
--source include/wait_condition.inc


--let $wait_condition= SELECT COUNT(*)>=1 FROM performance_schema.error_log WHERE (error_code='MY-013682' OR error_code='MY-013683') AND data LIKE 'The % thread detected that the source % does not belong to the group majority, thence the channel % will try to connect to another source.'
--source include/wait_condition.inc


--echo
--echo ############################################################
--echo # 6. Wait 30 seconds and validate that replica is still connected
--echo #    to server3.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc
--sleep 30
--let $assert_text= Verify channel ch1 IO_THREAD is ON and connected to server3
--let $assert_cond= "[SELECT SERVICE_STATE FROM performance_schema.replication_connection_status WHERE channel_name=\'ch1\' AND source_uuid=\'$server3_uuid\', SERVICE_STATE, 1]" = "ON"
--source include/assert.inc


--echo
--echo ############################################################
--echo # 7. Assert that group information did not change, since it
--echo #    lost the majority.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc

--let $assert_text= 'There is one row in performance_schema.replication_asynchronous_connection_failover for server1'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover WHERE port=$SERVER_MYPORT_1 AND weight=90 AND managed_name="$group_replication_group_name" , count, 1] = 1
--source include/assert.inc

--let $assert_text= 'There is one row in performance_schema.replication_asynchronous_connection_failover for server2'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover WHERE port=$SERVER_MYPORT_2 AND weight=70 AND managed_name="$group_replication_group_name" , count, 1] = 1
--source include/assert.inc


--echo
--echo ############################################################
--echo # 8. Restore the majority on the group by forcing its membership
--echo #    to only server2.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $local_address_server2= `SELECT @@GLOBAL.group_replication_local_address`
--replace_result $local_address_server2 GROUP_REPLICATION_LOCAL_ADDR_SERVER2
--eval SET GLOBAL group_replication_force_members= "$local_address_server2"

# Check for the primary member after the group is unblocked
--let $server1_uuid= `SELECT @@server_uuid`
--let $group_replication_expected_uuid= $server2_uuid
--source include/gr_wait_primary_member_uuid.inc

--let $wait_condition=SELECT COUNT(*)=1 FROM performance_schema.replication_group_members where MEMBER_STATE="ONLINE"
--source include/wait_condition.inc

SET GLOBAL group_replication_force_members= "";


--echo
--echo ############################################################
--echo # 9. Since server2 has bigger weight than server3, the managed
--echo #    channel must reconnect to server2 now that the group has
--echo #    majority.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc
--echo Wait until ch1 IO_THREAD is connected to server2
--let $wait_condition= SELECT service_state="ON" FROM performance_schema.replication_connection_status WHERE channel_name="ch1" AND source_uuid="$server2_uuid"
--source include/wait_condition.inc


--echo
--echo ############################################################
--echo # 10. Clean up.
--let $rpl_connection_name= server4
--source include/rpl_connection.inc
--let $rpl_channel_name='ch1'
--source include/stop_slave.inc

--let $rpl_reset_slave_all= 1
--let $rpl_multi_source= 1
--source include/rpl_reset_slave.inc
--let $rpl_channel_name=
--let $rpl_reset_slave_all=
--let $rpl_multi_source=

--replace_result $group_replication_group_name GROUP_NAME
--eval SELECT asynchronous_connection_failover_delete_managed('ch1', '$group_replication_group_name')

--let $assert_text= 'There are 0 rows in performance_schema.replication_asynchronous_connection_failover_managed for group'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover_managed WHERE managed_name="$group_replication_group_name", count, 1] = 0
--source include/assert.inc

--let $assert_text= 'There are 0 rows in performance_schema.replication_asynchronous_connection_failover for group'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover WHERE managed_name="$group_replication_group_name" , count, 1] = 0

--replace_result $SERVER_MYPORT_3 SERVER_MYPORT_3
--eval SELECT asynchronous_connection_failover_delete_source('ch1', '127.0.0.1', $SERVER_MYPORT_3, '');

--let $assert_text= 'There are no rows in performance_schema.replication_asynchronous_connection_failover'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover, count, 1] = 0
--source include/assert.inc

--let $assert_text= 'There are no rows in performance_schema.replication_asynchronous_connection_failover_managed'
--let $assert_cond= [SELECT  COUNT(*) count FROM performance_schema.replication_asynchronous_connection_failover_managed, count, 1] = 0
--source include/assert.inc

SET SESSION sql_log_bin = 0;
call mtr.add_suppression("The source .* for channel 'ch1' has joined the group .*, and so added its entry into replication_asynchronous_connection_failover table.");
call mtr.add_suppression("The master's UUID has changed, although this should not happen unless you have changed it manually.*");
call mtr.add_suppression("The Monitor IO thread detected that the source .* does not belong to the group majority, thence the channel .* will try to connect to another source.*");
call mtr.add_suppression("The IO thread detected that the source .* does not belong to the group majority, thence the channel .* will try to connect to another source.");
call mtr.add_suppression("The source .* for channel 'ch1' has left the group .*, and so removed its entry from replication_asynchronous_connection_failover table.");
call mtr.add_suppression("The group .* for the channel .* has been removed, and so removed its entry from replication_asynchronous_connection_failover_managed and all the group members from replication_asynchronous_connection_failover table.");
call mtr.add_suppression("The group .* for the channel .* has been added, and so added its entry in replication_asynchronous_connection_failover_managed and source to replication_asynchronous_connection_failover table.");
SET SESSION sql_log_bin = 1;

--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc

--source include/group_replication_end.inc