polardbxengine/mysql-test/suite/ndb_rpl/t/ndb_rpl_idempotent.test

--source include/have_ndb.inc
--source include/have_binlog_format_mixed_or_row.inc
--source suite/ndb_rpl/ndb_master-slave.inc

#
# Currently test only works with ndb since it retrieves "old"
# binlog positions with mysql.ndb_binlog_index and ndb_apply_status;
#

# create a table with one row
CREATE TABLE t1 (c1 CHAR(15), c2 CHAR(15), c3 INT, PRIMARY KEY (c3)) ENGINE = NDB ;

# Replicate the table creation, then reset the master log and
# slave to avoid the creation being replayed below
#
sync_slave_with_master;
--connection slave
STOP SLAVE;
--connection master
RESET MASTER;
--connection slave
RESET SLAVE;
START SLAVE;
--connection master

INSERT INTO t1 VALUES ("row1","will go away",1);
SELECT * FROM t1 ORDER BY c3;

# sync slave and retrieve epoch
sync_slave_with_master;
--replace_column 1 <the_epoch>
SELECT @the_epoch:=MAX(epoch) FROM mysql.ndb_apply_status;
let $the_epoch= `select @the_epoch` ;
SELECT * FROM t1 ORDER BY c3;

# get the master binlog pos from the epoch
connection master;
--disable_query_log
--disable_result_log
eval SELECT @the_pos:=Position,
   @the_file:=SUBSTRING_INDEX(REPLACE(FILE,'\\\\','/'), '/', -1)
   FROM mysql.ndb_binlog_index WHERE epoch = $the_epoch ;
let $the_pos= `SELECT @the_pos` ;
let $the_file= `SELECT @the_file` ;
let $the_epoch=`SELECT MAX(epoch) FROM mysql.ndb_apply_status`;
--enable_result_log
--enable_query_log

# insert some more values
INSERT INTO t1 VALUES ("row2","will go away",2),("row3","will change",3),("row4","D",4);
DELETE FROM t1 WHERE c3 = 1;
UPDATE t1 SET c2="should go away" WHERE c3 = 2;
UPDATE t1 SET c2="C" WHERE c3 = 3;
DELETE FROM t1 WHERE c3 = 2;

SELECT * FROM t1 ORDER BY c3;

# check that we have it on the slave
--sync_slave_with_master
SELECT * FROM t1 ORDER BY c3;

source include/check_slave_is_running.inc;

# stop slave and reset position to before the last changes
STOP SLAVE;
--disable_query_log
--disable_result_log
eval CHANGE MASTER TO
  master_log_file = '$the_file',
  master_log_pos = $the_pos ;
--enable_result_log
--enable_query_log

source include/check_slave_no_error.inc;

call mtr.add_suppression("NDB Slave: At SQL thread start applying epoch .*");

# start the slave again
# -> same events should have been applied again
# e.g. inserting rows that already there
#      deleting a row which is not there
#      updating a row which is not there
START SLAVE;

--connection master
SELECT * FROM t1 ORDER BY c3;
--sync_slave_with_master
SELECT * FROM t1 ORDER BY c3;

STOP SLAVE;

#
# cleanup
#
--connection master
DROP TABLE t1;
RESET master;
--connection slave
DROP TABLE t1;
RESET slave;

START SLAVE;

#
# Test that we can handle update of a row that does not exist on the slave
# will trigger usage of AO_IgnoreError on slave side so that the INSERT
# still succeeds even if the replication of the UPDATE generates an error.
#
--connection master
CREATE TABLE t1 (c1 CHAR(15) NOT NULL, c2 CHAR(15) NOT NULL, c3 INT NOT NULL, PRIMARY KEY (c3)) ENGINE = NDB ;
INSERT INTO t1 VALUES ("row1","remove on slave",1);

--sync_slave_with_master
--connection slave
DELETE FROM t1;

--connection master
BEGIN;
UPDATE t1 SET c2="does not exist" WHERE c3=1;
INSERT INTO t1 VALUES ("row2","new on slave",2);
COMMIT;

--sync_slave_with_master
--connection slave
SELECT * FROM t1;
source include/check_slave_is_running.inc;

connection master;
DROP TABLE IF EXISTS t1;

#
# Test that the ndb_binlog_index table records
# the start position of an epoch transaction
# as the first position after the previous
# epoch transaction
#
--sync_slave_with_master
--connection slave
STOP SLAVE;
--connection master
RESET MASTER;
--connection slave
RESET SLAVE;
START SLAVE;
--connection master

--echo Let's interleave some DDL and DML in the Binlog

--echo   Some DDL
create table t1(a int primary key) engine=ndb;

--echo   First epoch transaction
begin;
insert into t1 values (1), (2), (3);
commit;

--echo Sync slave and retrieve epoch
--sync_slave_with_master
--replace_column 1 <first_epoch>
SELECT @first_epoch:=MAX(epoch) FROM mysql.ndb_apply_status;
let $first_epoch= `select @first_epoch` ;

--echo   Slave contents
select * from t1 ORDER by a;

--echo   Get the next master binlog pos from the epoch
connection master;
--disable_query_log
--disable_result_log
eval SELECT @the_pos:=next_position,
   @the_file:=SUBSTRING_INDEX(REPLACE(next_file,'\\\\','/'), '/', -1)
   FROM mysql.ndb_binlog_index WHERE epoch = $first_epoch ;
let $the_pos= `SELECT @the_pos` ;
let $the_file= `SELECT @the_file` ;
--enable_result_log
--enable_query_log

--echo  Now let's do some more DDL and DML
create table t2 (a int primary key) engine=ndb;

begin;
insert into t2 values (1), (2), (3);
commit;

--sync_slave_with_master

--connection slave
source include/check_slave_is_running.inc;

--echo   Stop slave and reset position to start of the applied epoch
STOP SLAVE;
--disable_query_log
--disable_result_log

eval CHANGE MASTER TO
  master_log_file = '$the_file',
  master_log_pos = $the_pos;

--enable_result_log
--enable_query_log

source include/check_slave_no_error.inc;

# Add a suppression for the warning that will appear in the
# Slave's .err file
call mtr.add_suppression("Slave: Table \'t2\' already exists .*");
call mtr.add_suppression("Slave SQL for channel '': Error \'Table \'t2\' already exists\' .*");


START SLAVE;

--let $slave_sql_errno= 1050
--let $show_slave_sql_error=1
--source include/wait_for_slave_sql_error.inc

STOP SLAVE;

# Cleanup
--connection master
RESET MASTER;

--connection slave
RESET SLAVE;
START SLAVE;

--connection master
DROP TABLE t1;
DROP TABLE t2;

--sync_slave_with_master

# End of 5.1 Test
--source include/rpl_end.inc