#
# PXC-421: Test deadlock involving updates of 
# wsrep_provider, wsrep_cluster_address and wsrep_slave_threads.
#

--source include/galera_cluster.inc
--source include/have_innodb.inc

# Save original auto_increment_offset values.
--let $node_1=node_1
--let $node_2=node_2
--source include/auto_increment_offset_save.inc

--connection node_1
--let $wsrep_slave_1 = `SELECT @@wsrep_slave_threads`
set GLOBAL wsrep_slave_threads=26;
CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
INSERT INTO t1 (f1) SELECT * from t1 as x1;

--connection node_2
--let $wsrep_slave_2 = `SELECT @@wsrep_slave_threads`
set GLOBAL wsrep_slave_threads=16;
--let $wsrep_provider_orig = `SELECT @@wsrep_provider`
--let $wsrep_cluster_address_orig = `SELECT @@wsrep_cluster_address`

SET GLOBAL wsrep_provider='none';
INSERT INTO t1 VALUES (2);

--connection node_1
INSERT INTO t1 VALUES (3);

--connection node_2
--disable_query_log
--eval SET GLOBAL wsrep_provider = '$wsrep_provider_orig';
--eval SET GLOBAL wsrep_cluster_address = '$wsrep_cluster_address_orig';
--enable_query_log

set SESSION wsrep_sync_wait=0;
--source include/wait_until_connected_again.inc
--source include/galera_wait_ready.inc

INSERT INTO t1 VALUES (4);
set GLOBAL wsrep_slave_threads=5;

# Node #2 has all the inserts
SELECT COUNT(*) = 5 FROM t1;

--connection node_1
set GLOBAL wsrep_slave_threads=12;
# Node #1 is missing the insert made while Node #2 was not replicated
SELECT COUNT(*) = 4 FROM t1;
INSERT INTO t1 VALUES (100), (101), (102);

--connection node_2
set GLOBAL wsrep_slave_threads=5;
INSERT INTO t1 (f1) SELECT * from t1 as x1;
show global variables like 'wsrep_slave_threads';
--eval SET GLOBAL wsrep_slave_threads = $wsrep_slave_2
SELECT COUNT(*) FROM t1;

--connection node_1
SELECT COUNT(*) FROM t1;
show global variables like 'wsrep_slave_threads';
--eval SET GLOBAL wsrep_slave_threads = $wsrep_slave_1
DROP TABLE t1;

--source include/auto_increment_offset_restore.inc