Refs: MW-248

- test cases from PXC for reproducing the issue
- initial fix

mysql-test/suite/galera/r/galera_as_slave_autoinc.result

+START SLAVE USER='root';
+Warnings:
+Note	1759	Sending passwords in plain text without SSL/TLS is extremely insecure.
+SET SESSION binlog_format='STATEMENT';
+CREATE TABLE t1 (
+i int(11) NOT NULL AUTO_INCREMENT,
+c char(32) DEFAULT 'dummy_text',
+PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+insert into t1(i) values(null);
+select * from t1;
+i	c
+1	dummy_text
+insert into t1(i) values(null), (null), (null);
+select * from t1;
+i	c
+1	dummy_text
+2	dummy_text
+3	dummy_text
+4	dummy_text
+show variables like 'binlog_format';
+Variable_name	Value
+binlog_format	STATEMENT
+show variables like '%auto_increment%';
+Variable_name	Value
+auto_increment_increment	1
+auto_increment_offset	1
+wsrep_auto_increment_control	ON
+select * from t1;
+i	c
+1	dummy_text
+2	dummy_text
+3	dummy_text
+4	dummy_text
+show variables like 'binlog_format';
+Variable_name	Value
+binlog_format	ROW
+show variables like '%auto_increment%';
+Variable_name	Value
+auto_increment_increment	2
+auto_increment_offset	1
+wsrep_auto_increment_control	ON
+select * from t1;
+i	c
+1	dummy_text
+2	dummy_text
+3	dummy_text
+4	dummy_text
+show variables like 'binlog_format';
+Variable_name	Value
+binlog_format	ROW
+show variables like '%auto_increment%';
+Variable_name	Value
+auto_increment_increment	2
+auto_increment_offset	2
+wsrep_auto_increment_control	ON
+DROP TABLE t1;
+STOP SLAVE;
+RESET SLAVE ALL;
+SET GLOBAL binlog_format='ROW';
+RESET MASTER;

mysql-test/suite/galera/r/galera_binlog_stmt_autoinc.result

+SET GLOBAL wsrep_forced_binlog_format='STATEMENT';
+SET GLOBAL wsrep_forced_binlog_format='STATEMENT';
+CREATE TABLE t1 (
+i int(11) NOT NULL AUTO_INCREMENT,
+c char(32) DEFAULT 'dummy_text',
+PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+insert into t1(i) values(null);
+select * from t1;
+i	c
+1	dummy_text
+insert into t1(i) values(null), (null), (null);
+select * from t1;
+i	c
+1	dummy_text
+3	dummy_text
+5	dummy_text
+7	dummy_text
+select * from t1;
+i	c
+1	dummy_text
+3	dummy_text
+5	dummy_text
+7	dummy_text
+SET GLOBAL wsrep_forced_binlog_format='none';
+SET GLOBAL wsrep_forced_binlog_format='none';
+drop table t1;
+SET SESSION binlog_format='STATEMENT';
+show variables like 'binlog_format';
+Variable_name	Value
+binlog_format	STATEMENT
+SET GLOBAL wsrep_auto_increment_control='OFF';
+SET SESSION auto_increment_increment = 3;
+SET SESSION auto_increment_offset = 1;
+CREATE TABLE t1 (
+i int(11) NOT NULL AUTO_INCREMENT,
+c char(32) DEFAULT 'dummy_text',
+PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+insert into t1(i) values(null);
+select * from t1;
+i	c
+1	dummy_text
+insert into t1(i) values(null), (null), (null);
+select * from t1;
+i	c
+1	dummy_text
+4	dummy_text
+7	dummy_text
+10	dummy_text
+select * from t1;
+i	c
+1	dummy_text
+4	dummy_text
+7	dummy_text
+10	dummy_text
+SET GLOBAL wsrep_auto_increment_control='ON';
+SET SESSION binlog_format='ROW';
+show variables like 'binlog_format';
+Variable_name	Value
+binlog_format	ROW
+show variables like '%auto_increment%';
+Variable_name	Value
+auto_increment_increment	2
+auto_increment_offset	1
+wsrep_auto_increment_control	ON
+SET GLOBAL wsrep_auto_increment_control='OFF';
+show variables like '%auto_increment%';
+Variable_name	Value
+auto_increment_increment	3
+auto_increment_offset	1
+wsrep_auto_increment_control	OFF
+SET GLOBAL wsrep_auto_increment_control='ON';
+drop table t1;

mysql-test/suite/galera/t/galera_as_slave_autoinc.cnf

+!include ../galera_2nodes_as_slave.cnf

mysql-test/suite/galera/t/galera_as_slave_autoinc.test

+#
+# Test Galera as a slave to a MySQL master
+#
+# The galera/galera_2node_slave.cnf describes the setup of the nodes
+#
+
+--source include/have_innodb.inc
+--source include/have_log_bin.inc
+
+# As node #1 is not a Galera node, we connect to node #2 in order to run include/galera_cluster.inc
+--connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2
+--source include/galera_cluster.inc
+
+--connection node_2
+--disable_query_log
+--eval CHANGE MASTER TO MASTER_HOST='127.0.0.1', MASTER_PORT=$NODE_MYPORT_1;
+--enable_query_log
+START SLAVE USER='root';
+
+--connection node_1
+
+##
+## Verify the correct operation of the auto-increment when
+## the binlog format set to the 'STATEMENT' on the master node:
+##
+
+SET SESSION binlog_format='STATEMENT';
+
+CREATE TABLE t1 (
+     i int(11) NOT NULL AUTO_INCREMENT,
+     c char(32) DEFAULT 'dummy_text',
+     PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+insert into t1(i) values(null);
+
+select * from t1;
+
+insert into t1(i) values(null), (null), (null);
+
+select * from t1;
+
+show variables like 'binlog_format';
+show variables like '%auto_increment%';
+
+--connection node_2
+--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't1';
+--source include/wait_condition.inc
+
+--let $wait_condition = SELECT COUNT(*) = 4 FROM t1;
+--source include/wait_condition.inc
+
+select * from t1;
+
+show variables like 'binlog_format';
+show variables like '%auto_increment%';
+
+--connect node_3, 127.0.0.1, root, , test, $NODE_MYPORT_3
+
+select * from t1;
+
+show variables like 'binlog_format';
+show variables like '%auto_increment%';
+
+--connection node_1
+DROP TABLE t1;
+
+--connection node_2
+--let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't1';
+--source include/wait_condition.inc
+
+STOP SLAVE;
+RESET SLAVE ALL;
+
+--connection node_1
+
+SET GLOBAL binlog_format='ROW';
+
+RESET MASTER;

mysql-test/suite/galera/t/galera_binlog_stmt_autoinc.test

+##
+## Tests the auto-increment with binlog in STATEMENT mode.
+##
+
+--source include/galera_cluster.inc
+--source include/have_innodb.inc
+
+##
+## Verify the correct operation of the auto-increment when the binlog
+## format artificially set to the 'STATEMENT' (although this mode is
+## not recommended in the current version):
+##
+
+--connection node_2
+SET GLOBAL wsrep_forced_binlog_format='STATEMENT';
+
+--connection node_1
+SET GLOBAL wsrep_forced_binlog_format='STATEMENT';
+
+CREATE TABLE t1 (
+     i int(11) NOT NULL AUTO_INCREMENT,
+     c char(32) DEFAULT 'dummy_text',
+     PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+insert into t1(i) values(null);
+
+select * from t1;
+
+insert into t1(i) values(null), (null), (null);
+
+select * from t1;
+
+--connection node_2
+
+select * from t1;
+
+SET GLOBAL wsrep_forced_binlog_format='none';
+
+--connection node_1
+
+SET GLOBAL wsrep_forced_binlog_format='none';
+
+drop table t1;
+
+##
+## Check the operation when the automatic control over the auto-increment
+## settings is switched off, that is, when we use the increment step and
+## the offset specified by the user. In the current session, the binlog
+## format is set to 'STATEMENT'. It is important that the values of the
+## auto-increment options does not changed on other node - it allows us
+## to check the correct transmission of the auto-increment options to
+## other nodes:
+##
+
+--disable_warnings
+SET SESSION binlog_format='STATEMENT';
+--enable_warnings
+
+show variables like 'binlog_format';
+
+SET GLOBAL wsrep_auto_increment_control='OFF';
+
+SET SESSION auto_increment_increment = 3;
+SET SESSION auto_increment_offset = 1;
+
+CREATE TABLE t1 (
+     i int(11) NOT NULL AUTO_INCREMENT,
+     c char(32) DEFAULT 'dummy_text',
+     PRIMARY KEY (i)
+) ENGINE=InnoDB DEFAULT CHARSET=latin1;
+
+insert into t1(i) values(null);
+
+select * from t1;
+
+insert into t1(i) values(null), (null), (null);
+
+select * from t1;
+
+--connection node_2
+
+select * from t1;
+
+--connection node_1
+
+##
+## Verify the return to automatic calculation of the step
+## and offset of the auto-increment:
+##
+
+SET GLOBAL wsrep_auto_increment_control='ON';
+
+SET SESSION binlog_format='ROW';
+
+show variables like 'binlog_format';
+show variables like '%auto_increment%';
+
+##
+## Verify the recovery of original user-defined values after
+## stopping the automatic control over auto-increment:
+##
+
+SET GLOBAL wsrep_auto_increment_control='OFF';
+
+show variables like '%auto_increment%';
+
+##
+## Restore original options and drop test table:
+##
+
+SET GLOBAL wsrep_auto_increment_control='ON';
+
+drop table t1;

sql/sql_class.h

@@ -660,6 +660,7 @@ typedef struct system_variables
   uint wsrep_sync_wait;
   ulong wsrep_retry_autocommit;
   ulong wsrep_OSU_method;
+  ulong wsrep_auto_increment_control;
 #endif
   double long_query_time_double;
 

sql/sql_parse.cc

@@ -6805,18 +6805,17 @@ void THD::reset_for_next_command()
     transactions. Appliers and replayers are either processing ROW
     events or get autoinc variable values from Query_log_event.
   */
-  if (WSREP(thd) && thd->wsrep_exec_mode == LOCAL_STATE) {
-    if (wsrep_auto_increment_control)
-    {
-      if (thd->variables.auto_increment_offset !=
-	  global_system_variables.auto_increment_offset)
-	thd->variables.auto_increment_offset=
-	  global_system_variables.auto_increment_offset;
-      if (thd->variables.auto_increment_increment !=
-	  global_system_variables.auto_increment_increment)
-	thd->variables.auto_increment_increment=
-	  global_system_variables.auto_increment_increment;
-    }
+  if (WSREP(thd) && thd->wsrep_exec_mode == LOCAL_STATE &&
+      !thd->slave_thread && wsrep_auto_increment_control)
+  {
+    if (thd->variables.auto_increment_offset !=
+        global_system_variables.auto_increment_offset)
+      thd->variables.auto_increment_offset=
+        global_system_variables.auto_increment_offset;
+    if (thd->variables.auto_increment_increment !=
+        global_system_variables.auto_increment_increment)
+      thd->variables.auto_increment_increment=
+        global_system_variables.auto_increment_increment;
   }
 #endif /* WITH_WSREP */
   thd->query_start_used= 0;