• Alfranio Correia's avatar
    WL#2687 WL#5072 BUG#40278 BUG#47175 · 60d46624
    Alfranio Correia authored
    Non-transactional updates that take place inside a transaction present problems
    for logging because they are visible to other clients before the transaction
    is committed, and they are not rolled back even if the transaction is rolled
    back. It is not always possible to log correctly in statement format when both
    transactional and non-transactional tables are used in the same transaction.
    
    In the current patch, we ensure that such scenario is completely safe under the
    ROW and MIXED modes.
    60d46624
binlog_killed_simulate.test 2.35 KB
-- source include/have_debug.inc
-- source include/have_binlog_format_mixed_or_statement.inc
#
# bug#27571 asynchronous setting mysql_$query()'s local error and 
#           Query_log_event::error_code
#

--disable_warnings
drop table if exists t1,t2;
--enable_warnings

#
#  Checking that killing upon successful row-loop does not affect binlogging
#

create table t1  (a int) engine=MyISAM;
insert into t1 set a=1;
reset master;

update t1 set a=2 /* will be "killed" after work has been done */;

# a proof the query is binlogged with no error
#todo: introduce a suite private macro that provides numeric values
#      for some constants like the offset of the first real event
#      that is different between severs versions.
let $MYSQLD_DATADIR= `select @@datadir`;
--exec $MYSQL_BINLOG --force-if-open --start-position=107 $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
eval select
(@a:=load_file("$MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog"))
is not null;
--replace_result $MYSQL_TEST_DIR MYSQL_TEST_DIR
let $error_code= `select @a like "%#%error_code=0%" /* must return 1 */`;
eval select $error_code /* must return 1 as query completed before got killed*/;

# cleanup for the sub-case
remove_file $MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog;


#
#  Checking that killing inside of row-loop for LOAD DATA into
#  non-transactional table affects binlogging
#

create table t2 (a int, b int) ENGINE=MyISAM;
reset master;
--error ER_QUERY_INTERRUPTED
load data infile '../../std_data/rpl_loaddata.dat' into table t2 /* will be "killed" in the middle */;


# a proof the query is binlogged with an error

source include/show_binlog_events.inc;

--exec $MYSQL_BINLOG --force-if-open --start-position=210 --stop-position=387 $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
eval select
(@a:=load_file("$MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog"))
is not null;
--replace_result $MYSQL_TEST_DIR MYSQL_TEST_DIR
let $error_code= `select @a like "%#%error_code=0%" /* must return 0*/`;
eval select $error_code /* must return 0 to mean the killed query is in */;

# cleanup for the sub-case
remove_file $MYSQLTEST_VARDIR/tmp/binlog_killed_bug27571.binlog;


drop table t1,t2;

--echo end of the tests