Commit 20c21152 authored by sjaakola's avatar sjaakola Committed by Jan Lindström

Refs: MW-369 * added MTR test, which causes a crash in slave applying, due to...

Refs: MW-369 * added MTR test, which causes a crash in slave applying, due to FK constraint violation * mtr test is not deterministic, but can surface the crash, at least in my laptop
parent 7f66fcc3
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#
# This test tests the operation of transaction replay for a transaction which operates on FK parent table.
# If a potentially conflicting remote transaction arrives at just the right time during the commit of a
# local transaction, the local transaction will be aborted and replayed.
# The replaying should be possible and honor the FK constraints.
#
--source include/galera_cluster.inc
--source include/have_innodb.inc
--source include/have_debug_sync.inc
--source suite/galera/include/galera_have_debug_sync.inc
--let $wsrep_local_replays_old = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'`
CREATE TABLE p (f1 INTEGER PRIMARY KEY, f2 INTEGER) ENGINE=INNODB;
CREATE TABLE c (f1 INTEGER PRIMARY KEY, p_id INTEGER,
CONSTRAINT fk_1 FOREIGN KEY (p_id) REFERENCES p (f1)) ;
INSERT INTO p VALUES (1, 0);
INSERT INTO p VALUES (2, 0);
--connection node_1
SET AUTOCOMMIT=ON;
START TRANSACTION;
DELETE FROM p WHERE f1 = 1;
SELECT * FROM p WHERE f1 = 2 FOR UPDATE;
# Block the commit
--connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1
--let $galera_sync_point = commit_monitor_enter_sync
--source include/galera_set_sync_point.inc
#
# insert client row, which will make it impossible to replay the delete on parent
#
--connection node_2
INSERT INTO c values (1,1);
--connection node_1
--send COMMIT;
# Wait until commit is blocked
--connection node_1a
SET SESSION wsrep_sync_wait = 0;
--source include/galera_wait_sync_point.inc
#
# send conflicting delete which will make node1 trx to abort and replay
#
--connection node_2
DELETE FROM p WHERE f1=2;
# Wait for both transactions to be blocked
--connection node_1a
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'System lock';
--source include/wait_condition.inc
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'init' AND INFO = 'COMMIT';
--source include/wait_condition.inc
# Unblock the commit
--connection node_1a
--source include/galera_clear_sync_point.inc
--source include/galera_signal_sync_point.inc
# Commit succeeds
--connection node_1
--reap
# wsrep_local_replays has increased by 1
--let $wsrep_local_replays_new = `SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_replays'`
--disable_query_log
--eval SELECT $wsrep_local_replays_new - $wsrep_local_replays_old = 1 AS wsrep_local_replays;
--enable_query_log
--connection node_2
SELECT COUNT(*) = 2 FROM p;
SELECT COUNT(*) = 1 FROM c;
DROP TABLE c;
DROP TABLE p;
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