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# Scenario "random" - both redo and no-redo mini-transactions happen
# concurrently in many threads. We freeze/unfreeze recent_closed
# updates every 1 second (trying to make troubles).
#
# We rely on assertion for proper order in flush list.
#
let $i = $n_conn;
while ($i > 0) {
connect(con_noredo$i, localhost, root,,);
CREATE TEMPORARY TABLE tmp_t (a INT PRIMARY KEY, b VARCHAR(10000)) ENGINE = InnoDB;
INSERT INTO tmp_t (a, b) VALUES (0, '');
connect(con_redo$i, localhost, root,,);
dec $i;
}
--connection default
--echo #
--echo # 0. Freeze log.recent_closed.
--echo #
--source ../include/log_recent_closed_freeze.inc
--echo #
--echo # 1. Start threads doing redo-based mtr and threads doing noredo-based mtr.
--echo #
let $i = $n_conn;
while ($i > 0) {
--connection con_redo$i
BEGIN;
eval DELETE FROM t$i WHERE a < 0;
--connection con_noredo$i
BEGIN;
DELETE FROM tmp_t WHERE a < 0;
dec $i;
}
let $i = $n_conn;
while ($i > 0) {
--connection con_redo$i
eval SET @q = CONCAT("CALL mtr_redo_generate_multi(", $i, ", 1800, 500)");
PREPARE stmt FROM @q;
--send EXECUTE stmt;
--connection con_noredo$i
--send CALL mtr_noredo_generate_multi(100);
dec $i;
}
--connection default
--echo #
--echo # 2. Freeze/unfreeze log_recent_closed every 1s
--echo #
let $i = 10;
while ($i) {
if ($debug_test) {
--source ../include/log_read_current_lsn.inc
--echo Current LSN: $current_lsn
}
--echo Iterations left: $i - unfreeze...
--source ../include/log_recent_closed_unfreeze.inc
sleep 0.5;
--echo Iterations left: $i - freeze...
--source ../include/log_recent_closed_freeze.inc
sleep 0.5;
dec $i;
}
--echo Finished all iterations - unfreeze...
--source ../include/log_recent_closed_unfreeze.inc
--echo #
--echo # 3. Finish pending insertions.
--echo #
let $i = $n_conn;
while ($i > 0) {
--connection con_redo$i
reap;
COMMIT;
disconnect con_redo$i;
--connection con_noredo$i
reap;
COMMIT;
disconnect con_noredo$i;
dec $i;
}
--connection default
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