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# ==== Implementation ====
#
# This test will create a workload and will block the table to be written
# on the slave to force the SQL thread or slave worker to wait.
#
# Then, this test case will query P_S tables to ensure that a slave worker
# thread if MTS is enabled, or the SQL thread for STS that is considered a
# worker too, is waiting.
#
# ==== Related Bug ====
#
# BUG#25444610 REPLICATION_APPLIER_STATUS_BY_WORKER USES COORD THREAD_ID AS
# INDEX WITH MTS
#
# This test case is binary log format agnostic
--source include/have_binlog_format_row.inc
--source include/master-slave.inc
# Create the table, sync slave and lock the table on the slave
CREATE TABLE t1 (c1 INT PRIMARY KEY);
--source include/sync_slave_sql_with_master.inc
LOCK TABLES t1 READ, performance_schema.threads READ;
--source include/rpl_connection_master.inc
INSERT INTO t1 (c1) VALUES (1);
--source include/sync_slave_io_with_master.inc
--echo # check that a worker thread is waiting using the thread id
--echo # given as index by the table replication_applier_status_by_worker
let $wait_condition=
SELECT COUNT(*) = 1
FROM performance_schema.threads
WHERE THREAD_ID IN
(SELECT THREAD_ID
FROM performance_schema.replication_applier_status_by_worker)
AND PROCESSLIST_STATE = "Waiting for table metadata lock";
--source include/wait_condition_or_abort.inc
UNLOCK TABLES;
--echo # check that the number of workers in the replication p_s table matches
--echo # when their thread id from the replication p_s table is used in
--echo # p_s.threads table
--let $num_workers= query_get_value(SELECT COUNT(*) FROM performance_schema.replication_applier_status_by_worker, COUNT(*), 1)
let $wait_condition=
SELECT COUNT(*) = $num_workers
FROM performance_schema.threads
WHERE THREAD_ID IN
(SELECT THREAD_ID
FROM performance_schema.replication_applier_status_by_worker)
AND PROCESSLIST_STATE LIKE "%";
--source include/wait_condition_or_abort.inc
# Cleanup
--source include/rpl_connection_master.inc
DROP TABLE t1;
--source include/rpl_end.inc
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