Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 113 insertions, 0 deletions

diff --git a/mysql-test/suite/galera_sr/t/MDEV-25717.test b/mysql-test/suite/galera_sr/t/MDEV-25717.test
new file mode 100644
index 00000000..7188f8bb
--- /dev/null
+++ b/mysql-test/suite/galera_sr/t/MDEV-25717.test
@@ -0,0 +1,113 @@
+#
+# MDEV-25717 Assertion `owning_thread_id_ == wsrep::this_thread::get_id()'
+#
+# This test exposes a race condition between rollbacker thread and rollback
+# fragment processing.
+#
+
+--source include/galera_cluster.inc
+--source include/have_debug_sync.inc
+
+--connection node_1
+CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) Engine=InnoDB;
+INSERT INTO t1 VALUES (1), (2), (3);
+
+#
+# On node_2 we start a SR transaction, it going to
+# be BF aborted later on
+#
+--connection node_2
+SET SESSION wsrep_trx_fragment_size = 1;
+START TRANSACTION;
+INSERT INTO t1 VALUES (4);
+
+--connection node_1
+SELECT COUNT(*) FROM t1; # Sync wait
+
+#
+# Issue a conflicting TRUNCATE statement on node_1:
+# - on node_2, block it before it is going to apply
+# - on node_1, block before the before it BF aborts the INSERT
+#
+--connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2
+--connection node_2a
+SET GLOBAL DEBUG_DBUG = "d,sync.wsrep_apply_toi";
+
+--connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1
+--connection node_1a
+SET GLOBAL DEBUG_DBUG = "d,sync.wsrep_bf_abort";
+
+--connection node_1
+--send TRUNCATE TABLE t1
+
+--connection node_1a
+SET DEBUG_SYNC = "now WAIT_FOR sync.wsrep_bf_abort_reached";
+
+--connection node_2a
+SET DEBUG_SYNC = "now WAIT_FOR sync.wsrep_apply_toi_reached";
+
+#
+# Generate one more fragment on the SR transaction.
+# This is going to fail certification and results
+# in a rollback fragment.
+#
+--connection node_2
+--let $expected_cert_failures = `SELECT VARIABLE_VALUE + 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_cert_failures'`
+
+--send INSERT INTO t1 VALUES (5)
+
+#
+# Wait until after certify and observe the certification
+# failure. Let both continue and we are done on node_2.
+#
+--connection node_2a
+SET SESSION wsrep_sync_wait = 0;
+--let $wait_condition = SELECT VARIABLE_VALUE = $expected_cert_failures FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_cert_failures'
+--source include/wait_condition.inc
+SET SESSION wsrep_sync_wait = DEFAULT;
+
+SET GLOBAL DEBUG_DBUG = "";
+SET DEBUG_SYNC = "now SIGNAL signal.wsrep_apply_toi";
+
+--connection node_2
+--error ER_LOCK_DEADLOCK
+--reap
+
+#
+# On node_1 we expect the following things:
+# - the TRUNCATE should successfully bf abort the transaction
+# - A rollback fragment should be delivered as a result of
+#   certification failure. We expect the rollback fragment to
+#   be delivered after TRUNCATE has bf aborted, therefore rollback
+#   fragment logs a dummy writeset.
+#
+--connection node_1a
+SET SESSION wsrep_sync_wait=0;
+SET GLOBAL DEBUG_DBUG = "+d,sync.wsrep_log_dummy_write_set";
+
+# Signal the TRUNCATE to continue and observe the BF abort
+--let $expected_bf_aborts = `SELECT VARIABLE_VALUE + 1 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_bf_aborts'`
+SET DEBUG_SYNC = "now SIGNAL signal.wsrep_bf_abort";
+
+# Expect a timeout if bug is present
+--let $wait_condition = SELECT VARIABLE_VALUE = $expected_bf_aborts FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_bf_aborts'
+--source include/wait_condition.inc
+
+# Observe logging of dummy writeset
+SET DEBUG_SYNC = "now WAIT_FOR sync.wsrep_log_dummy_write_set_reached";
+
+# TRUNCATE succeeds
+--connection node_1
+--reap
+
+#
+# Cleanup
+#
+--connection node_2
+SET GLOBAL DEBUG_DBUG = "";
+SET DEBUG_SYNC = "RESET";
+
+--connection node_1
+SET GLOBAL DEBUG_DBUG = "";
+SET DEBUG_SYNC = "RESET";
+DROP TABLE t1;