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#
# This test checks that innodb_disallow_writes works as expected
#
# Note that we need to enable binlog for this test: If the commit
# to InnoDB is done in one phase, the transaction is committed in
# memory before it is persisted to disk. This means that the
# innodb_disallow_writes=ON may not prevent transaction to
# become visible to other readers. On the other hand, if the
# commit is two phase (as it is with binlog), the transaction
# will be blocked in prepare phase.
#
--source include/galera_cluster.inc
--source include/have_innodb.inc
--let $datadir= `SELECT @@datadir`
# Open a separate connection to be used to run SHOW PROCESSLIST
--let $galera_connection_name = node_1a
--let $galera_server_number = 1
--source include/galera_connect.inc
--connection node_1a
SET SESSION wsrep_sync_wait = 0;
--connection node_1
CREATE TABLE t1 (f1 INTEGER, f2 varchar(1024)) Engine=InnoDB;
CREATE TABLE ten (f1 INTEGER) ENGINE=InnoDB;
INSERT INTO ten VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
SET GLOBAL innodb_disallow_writes=ON;
--exec find $datadir -type f-exec md5sum {} \; | md5sum >$MYSQLTEST_VARDIR/tmp/innodb_before
#
# This insert has no effect before innodb_disallow_writes is OFF
#
--send INSERT INTO t1 (f2) SELECT 'abcde ' FROM ten AS a1, ten AS a2, ten AS a3, ten AS a4;
--connection node_2
INSERT INTO t1 (f2) SELECT 'fghij ' FROM ten AS a1, ten AS a2, ten AS a3, ten AS a4;
SELECT COUNT(*) AS EXPECT_10000 FROM t1;
--connection node_1a
--sleep 5
--exec find $datadir -type f-exec md5sum {} \; | md5sum >$MYSQLTEST_VARDIR/tmp/innodb_after
SET GLOBAL innodb_disallow_writes=OFF;
--connection node_1
--reap
--let $wait_condition = SELECT COUNT(*) = 20000 FROM t1;
--source include/wait_condition.inc
SELECT COUNT(*) AS EXPECT_20000 FROM t1;
--connection node_2
--let $wait_condition = SELECT COUNT(*) = 20000 FROM t1;
--source include/wait_condition.inc
SELECT COUNT(*) AS EXPECT_20000 FROM t1;
--connection node_1
--diff_files $MYSQLTEST_VARDIR/tmp/innodb_before $MYSQLTEST_VARDIR/tmp/innodb_after
--connection node_2
DROP TABLE t1;
DROP TABLE ten;
--disconnect node_1a
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