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################################################################################
# Validate that Group Replication does start correctly multiple times after
# the server being cloned.
#
# Test:
# 0. The test requires two servers: M1 and M2.
# 1. Install clone plugin on server1.
# Bootstrap server1 and add some data.
# 2. Restart server2 with a monitoring process (mysqld_safe)
# if needed.
# Install clone plugin on server2.
# 3. Start GR on server2, forcing clone.
# 4. Stop GR applier on server2 so that all remote
# transactions are only queued on relay log.
# Execute some transactions on server1.
# 5. Wait until server2 receives and certifies the transaction.
# Make both members leave the group.
# 6. Start Group Replication only on server2.
# Assert that server1 and server2 have the same data.
# 7. Clean up.
################################################################################
--source include/big_test.inc
--source include/have_debug_sync.inc
--source include/have_mysqld_monitoring_process.inc
--source include/have_clone_plugin.inc
--source include/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--source include/group_replication.inc
--echo
--echo ############################################################
--echo # 1. Install clone plugin on server1.
--echo # Bootstrap server1 and add some data.
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--replace_result $CLONE_PLUGIN CLONE_PLUGIN
--eval INSTALL PLUGIN clone SONAME '$CLONE_PLUGIN'
--source include/start_and_bootstrap_group_replication.inc
CREATE TABLE t1 (c1 INT NOT NULL PRIMARY KEY);
INSERT INTO t1 VALUES (1);
--echo
--echo ############################################################
--echo # 2. Restart server2 with a monitoring process (mysqld_safe)
--echo # if needed.
--echo # Install clone plugin on server2.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $_group_replication_local_address= `SELECT @@GLOBAL.group_replication_local_address`
--let $_group_replication_group_seeds= `SELECT @@GLOBAL.group_replication_group_seeds`
--let $_group_replication_start_boot_save= `SELECT @@GLOBAL.group_replication_start_on_boot`
--let $_group_replication_comm_stack= `SELECT @@GLOBAL.group_replication_communication_stack`
--let $server2_datadir= `SELECT @@DATADIR`
--let $plugin_list= $GROUP_REPLICATION
--source include/spawn_monitoring_process.inc
--disable_query_log
--eval SET PERSIST group_replication_group_name= "$group_replication_group_name"
--eval SET PERSIST group_replication_local_address= "$_group_replication_local_address"
--eval SET PERSIST group_replication_group_seeds= "$_group_replication_group_seeds"
--eval SET PERSIST group_replication_communication_stack= "$_group_replication_comm_stack"
SET PERSIST group_replication_start_on_boot= ON;
--enable_query_log
--replace_result $CLONE_PLUGIN CLONE_PLUGIN
--eval INSTALL PLUGIN clone SONAME '$CLONE_PLUGIN'
--echo
--echo ############################################################
--echo # 3. Start GR on server2, forcing clone.
--let $_group_replication_threshold_save= `SELECT @@GLOBAL.group_replication_clone_threshold`
SET GLOBAL group_replication_clone_threshold= 1;
START GROUP_REPLICATION;
--source include/wait_until_disconnected.inc
--let $rpl_server_number= 2
--source include/rpl_reconnect.inc
--let $group_replication_member_state=ONLINE
--source include/gr_wait_for_member_state.inc
--let $assert_text= Clone must be completed
--let $assert_cond= [SELECT state="Completed" FROM performance_schema.clone_status] = 1;
--source include/assert.inc
--let $diff_tables=server1:t1, server2:t1
--source include/diff_tables.inc
# Assert that group_replication_applier channel relay logs were purged after clone.
--echo # group_replication_applier channel relay log files
--list_files $server2_datadir server-relay-log-group_replication_applier.*
--let $rpl_channel_name= 'group_replication_applier'
--let $binlog_file= server-relay-log-group_replication_applier.000001
--source include/show_relaylog_events.inc
--let $rpl_channel_name= 'group_replication_applier'
--let $binlog_file= server-relay-log-group_replication_applier.000002
--source include/show_relaylog_events.inc
--echo ############################################################
--echo # 4. Stop GR applier on server2 so that all remote
--echo # transactions are only queued on relay log.
--echo # Execute some transactions on server1.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
SET @@GLOBAL.DEBUG='+d,block_applier_updates';
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
INSERT INTO t1 VALUES (2);
--echo
--echo ################################################################
--echo # 5. Wait until server2 receives and certifies the transaction.
--echo # Make both members leave the group.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
SET DEBUG_SYNC = "now WAIT_FOR applier_read_blocked";
--let $wait_condition= SELECT LAST_QUEUED_TRANSACTION="$group_replication_group_name:6" FROM performance_schema.replication_connection_status WHERE channel_name="group_replication_applier";
--source include/wait_condition.inc
SET @@GLOBAL.DEBUG='-d,block_applier_updates';
SET @@GLOBAL.DEBUG='+d,force_sql_thread_error';
SET DEBUG_SYNC = "now SIGNAL resume_applier_read";
--let $group_replication_member_state= ERROR
--source include/gr_wait_for_member_state.inc
SET @@GLOBAL.DEBUG='-d,force_sql_thread_error';
--source include/stop_group_replication.inc
SET DEBUG_SYNC= 'RESET';
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
--echo
--echo ############################################################
--echo # 6. Start Group Replication only on server2.
--echo # Assert that server1 and server2 have the same data.
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_and_bootstrap_group_replication.inc
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--let $assert_text= 'There are two rows in table t1 on server1'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1, count, 1] = 2
--source include/assert.inc
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--let $assert_text= 'There are two rows in table t1 on server2'
--let $assert_cond= [SELECT COUNT(*) AS count FROM t1, count, 1] = 2
--source include/assert.inc
--let $diff_tables=server1:t1, server2:t1
--source include/diff_tables.inc
# Assert that group_replication_applier channel relay logs were not purged after clone.
--echo # group_replication_applier channel relay log files
--list_files $server2_datadir server-relay-log-group_replication_applier.*
--let $rpl_channel_name= 'group_replication_applier'
--let $binlog_file= server-relay-log-group_replication_applier.000002
--source include/show_relaylog_events.inc
--let $rpl_channel_name= 'group_replication_applier'
--let $binlog_file= server-relay-log-group_replication_applier.000003
--source include/show_relaylog_events.inc
--echo
--echo ############################################################
--echo # 7. Clean up.
--let $rpl_connection_name= server1
--source include/rpl_connection.inc
DROP TABLE t1;
UNINSTALL PLUGIN clone;
--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/stop_group_replication.inc
DROP TABLE t1;
RESET PERSIST group_replication_group_name;
RESET PERSIST group_replication_local_address;
RESET PERSIST group_replication_group_seeds;
RESET PERSIST group_replication_start_on_boot;
RESET PERSIST IF EXISTS group_replication_communication_stack;
--replace_result $_group_replication_threshold_save GROUP_REPLICATION_CLONE_THRESHOLD
--eval SET GLOBAL group_replication_clone_threshold= $_group_replication_threshold_save
--replace_result $_group_replication_start_boot_save START_ON_BOOT_VALUE
--eval SET GLOBAL group_replication_start_on_boot= $_group_replication_start_boot_save
UNINSTALL PLUGIN clone;
SET SESSION sql_log_bin= 0;
call mtr.add_suppression("Due to the number of missing transactions being higher than the configured threshold of*");
call mtr.add_suppression("Clone removing all user data for provisioning: Started");
call mtr.add_suppression("Clone removing all user data for provisioning: Finished");
call mtr.add_suppression("Replica SQL for channel 'group_replication_applier': Relay log read failure: Could not parse relay log event entry.*");
call mtr.add_suppression("The applier thread execution was aborted. Unable to process more transactions, this member will now leave the group.");
call mtr.add_suppression("Fatal error during execution on the Applier process of Group Replication. The server will now leave the group.");
call mtr.add_suppression("The server was automatically set into read only mode after an error was detected.");
call mtr.add_suppression("Skipping leave operation: concurrent attempt to leave the group is on-going.");
SET SESSION sql_log_bin= 1;
--source include/clean_monitoring_process.inc
--source include/group_replication_end.inc
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