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# ==== Purpose ====
#
# This test checks that:
# Channels with GTID_ONLY always use the parallel applier
# Channels with GTID_ONLY reset worker info on replica start
#
# ==== Requirements ====
#
# R1: A channel configured with GTID_ONLY always has at least
# one applier worker
#
# ==== Implementation ====
#
# 1. Configure the channel with GTID_ONLY = 1
# Add some data to populate repository tables
# 2. Restart the replica.
# Check there is no worker info as it was purged after start
# 3. Set the number of applier workers to 0
# Check the channel still has one worker.
# 4. Disable GTID_ONLY
# Check the channel has no workers.
# 5. Cleanup
#
# ==== References ====
#
# WL#7491: GTID-based replication applier recovery and positioning
#
--source include/have_slave_repository_type_table.inc
--source include/have_binlog_format_row.inc
--let $rpl_skip_start_slave= 1
--source include/master-slave.inc
--echo
--echo ############################################################
--echo # 1. Configure the channel with GTID_ONLY = 1
--echo # Add some data to populate repository tables
--source include/rpl_connection_slave.inc
CHANGE REPLICATION SOURCE TO REQUIRE_ROW_FORMAT = 1, GTID_ONLY = 1;
--source include/start_slave.inc
--source include/rpl_connection_master.inc
CREATE TABLE t1 (a INT PRIMARY KEY);
INSERT INTO t1 VALUES(1);
--source include/sync_slave_sql_with_master.inc
--echo
--echo ############################################################
--echo # 2. Restart the replica.
--echo # Check there is no worker info as it was purged after start
--let $rpl_server_number= 2
--let $rpl_server_parameters=--skip_replica_start=1
--source include/rpl_restart_server.inc
--let $assert_text= No info exists in the repository table
--let $assert_cond= `SELECT COUNT(*) = 0 FROM mysql.slave_worker_info`
--source include/assert.inc
--echo
--echo ############################################################
--echo # 3. Set the number of applier workers to 0
--echo # Check the channel still has one worker.
--let $saved_replica_parallel_workers = `SELECT @@GLOBAL.replica_parallel_workers`
SET @@GLOBAL.replica_parallel_workers = 0;
--source include/start_slave.inc
--let $assert_text= There is one worker runnning with id 1
--let $assert_cond= `SELECT COUNT(*) = 1 FROM performance_schema.replication_applier_status_by_worker WHERE worker_id=1`
--source include/assert.inc
--echo
--echo ############################################################
--echo # 4. Disable GTID_ONLY
--echo # Check the channel has no workers.
--source include/stop_slave.inc
CHANGE REPLICATION SOURCE TO GTID_ONLY = 0;
--source include/start_slave.inc
--let $assert_text= There is no worker with an ID
--let $assert_cond= `SELECT COUNT(*) = 0 FROM performance_schema.replication_applier_status_by_worker WHERE worker_id=1`
--source include/assert.inc
--echo
--echo ############################################################
--echo # 5. Cleanup
--source include/rpl_connection_master.inc
DROP TABLE t1;
--source include/sync_slave_sql_with_master.inc
--disable_warnings
--replace_result $saved_replica_parallel_workers NUMBER_OF_WORKERS
--eval SET @@GLOBAL.replica_parallel_workers = $saved_replica_parallel_workers
--enable_warnings
--source include/rpl_end.inc
|
