# WL2540 replication events checksum
# Testing configuration parameters

--source include/have_debug.inc
--source include/have_binlog_format_mixed.inc
--source include/master-slave.inc

call mtr.add_suppression('Slave can not handle replication events with the checksum that master is configured to log');
call mtr.add_suppression('Replication event checksum verification failed');
# due to C failure simulation
call mtr.add_suppression('Relay log write failure: could not queue event from master');
call mtr.add_suppression('Master is configured to log replication events with checksum, but will not send such events to slaves that cannot process them');

# A. read/write access to the global vars:
# binlog_checksum master_verify_checksum slave_sql_verify_checksum

connection master;

set @master_save_binlog_checksum= @@global.binlog_checksum;
set @save_master_verify_checksum =  @@global.master_verify_checksum;

select @@global.binlog_checksum as 'must be CRC32 because of the command line option';
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.binlog_checksum as 'no session var';

select @@global.master_verify_checksum  as 'must be zero because of default';
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.master_verify_checksum  as 'no session var';

connection slave;

set @slave_save_binlog_checksum= @@global.binlog_checksum;
set @save_slave_sql_verify_checksum = @@global.slave_sql_verify_checksum;

select @@global.slave_sql_verify_checksum  as 'must be one because of default';
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
select @@session.slave_sql_verify_checksum  as 'no session var';

connection master;

source include/show_binary_logs.inc;
set @@global.binlog_checksum = NONE;
select @@global.binlog_checksum;
--echo  *** must be rotations seen ***
source include/show_binary_logs.inc;

set @@global.binlog_checksum = default;
select @@global.binlog_checksum;

# testing lack of side-effects in non-effective update of binlog_checksum:
set @@global.binlog_checksum = CRC32;
select @@global.binlog_checksum;
set @@global.binlog_checksum = CRC32; 

set @@global.master_verify_checksum = 0;
set @@global.master_verify_checksum = default;

--error ER_WRONG_VALUE_FOR_VAR
set @@global.binlog_checksum = ADLER32;
--error ER_WRONG_VALUE_FOR_VAR
set @@global.master_verify_checksum = 2; # the var is of bool type

connection slave;

set @@global.slave_sql_verify_checksum = 0;
set @@global.slave_sql_verify_checksum = default;
--error ER_WRONG_VALUE_FOR_VAR
set @@global.slave_sql_verify_checksum = 2; # the var is of bool type

#
# B. Old Slave to New master conditions
#
# while master does not send a checksum-ed binlog the Old Slave can
# work with the New Master

connection master;

set @@global.binlog_checksum = NONE;
create table t1 (a int);

# testing that binlog rotation preserves opt_binlog_checksum value
flush logs;
flush logs;
flush logs;

sync_slave_with_master;
#connection slave;
# checking that rotation on the slave side leaves slave stable
flush logs;
flush logs;
flush logs;
select count(*) as zero from t1;

source include/stop_slave.inc;

connection master;
set @@global.binlog_checksum = CRC32;
insert into t1 values (1) /* will not be applied on slave due to simulation */;

# instruction to the dump thread

connection slave;
set @@global.debug_dbug='d,simulate_slave_unaware_checksum';
start slave;
--let $slave_io_errno= 1236
--let $show_slave_io_error= 1
source include/wait_for_slave_io_error.inc;

select count(*) as zero from t1;

###connection master;
set @@global.debug_dbug='';

connection slave;
source include/start_slave.inc;

# 
# C. checksum failure simulations
#

# C1. Failure by a client thread
connection master;
set @@global.master_verify_checksum = 1;
set @@session.debug_dbug='d,simulate_checksum_test_failure';
--error ER_ERROR_WHEN_EXECUTING_COMMAND
show binlog events;
set @@session.debug_dbug='';
set @@global.master_verify_checksum = default;

#connection master;
sync_slave_with_master;

connection slave;
source include/stop_slave.inc;

connection master;
create table t2 (a int);
let $pos_master= query_get_value(SHOW MASTER STATUS, Position, 1);

connection slave;

# C2. Failure by IO thread
# instruction to io thread
set @@global.debug_dbug='d,simulate_checksum_test_failure';
start slave io_thread;
# When the checksum error is detected, the slave sets error code 1913
# (ER_NETWORK_READ_EVENT_CHECKSUM_FAILURE) in queue_event(), then immediately
# sets error 1595 (ER_SLAVE_RELAY_LOG_WRITE_FAILURE) in handle_slave_io().
# So we usually get 1595, but it is occasionally possible to get 1913.
--let $slave_io_errno= 1595,1913
--let $show_slave_io_error= 0
source include/wait_for_slave_io_error.inc;
set @@global.debug_dbug='';

# to make IO thread re-read it again w/o the failure
start slave io_thread;
let $slave_param= Read_Master_Log_Pos;
let $slave_param_value= $pos_master;
source include/wait_for_slave_param.inc;

# C3. Failure by SQL thread
# instruction to sql thread;
set @@global.slave_sql_verify_checksum = 1;

set @@global.debug_dbug='d,simulate_checksum_test_failure';

start slave sql_thread;
--let $slave_sql_errno= 1593
--let $show_slave_sql_error= 1
source include/wait_for_slave_sql_error.inc;

# resuming SQL thread to parse out the event w/o the failure

set @@global.debug_dbug=''; 
source include/start_slave.inc;

connection master;
sync_slave_with_master;

#connection slave;
select count(*) as 'must be zero' from t2;

#
# D. Reset slave, Change-Master, Binlog & Relay-log rotations with 
#    random value on binlog_checksum on both master and slave
#
connection slave;
stop slave;
reset slave;

# randomize slave server's own checksum policy
set @@global.binlog_checksum= IF(floor((rand()*1000)%2), "CRC32", "NONE");
flush logs;

connection master;
set @@global.binlog_checksum= CRC32;
reset master;
flush logs;
create table t3 (a int, b char(5));

connection slave;
source include/start_slave.inc;

connection master;
sync_slave_with_master;

#connection slave;
select count(*) as 'must be zero' from t3;
source include/stop_slave.inc;
--replace_result $MASTER_MYPORT MASTER_PORT
eval change master to master_host='127.0.0.1',master_port=$MASTER_MYPORT, master_user='root';

connection master;
flush logs;
reset master;
insert into t3 value (1, @@global.binlog_checksum);

connection slave;
source include/start_slave.inc;
flush logs;

connection master;
sync_slave_with_master;

#connection slave;
select count(*) as 'must be one' from t3;

connection master;
set @@global.binlog_checksum= IF(floor((rand()*1000)%2), "CRC32", "NONE");
insert into t3 value (1, @@global.binlog_checksum);
sync_slave_with_master;

#connection slave;

#clean-up

connection master;
drop table t1, t2, t3;
set @@global.binlog_checksum = @master_save_binlog_checksum;
set @@global.master_verify_checksum = @save_master_verify_checksum;

#
# BUG#58564: flush_read_lock fails in mysql-trunk-bugfixing after merging with WL#2540
#
# Sanity check that verifies that no assertions are triggered because
# of old FD events (generated by versions prior to server released with 
# checksums feature)
#
# There is no need for query log, if something wrong this should trigger
# an assertion

--disable_query_log

BINLOG '
MfmqTA8BAAAAZwAAAGsAAAABAAQANS41LjctbTMtZGVidWctbG9nAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAx+apMEzgNAAgAEgAEBAQEEgAAVAAEGggAAAAICAgCAA==
';

--enable_query_log

#connection slave;
sync_slave_with_master;


--echo *** Bug#59123 / MDEV-5799: INCIDENT_EVENT checksum written to error log as garbage characters ***

--connection master

--source include/wait_for_binlog_checkpoint.inc
CREATE TABLE t4 (a INT PRIMARY KEY);
INSERT INTO t4 VALUES (1);

SET sql_log_bin=0;
CALL mtr.add_suppression("\\[ERROR\\] Can't generate a unique log-filename");
SET sql_log_bin=1;
SET @old_dbug= @@GLOBAL.debug_dbug;
SET debug_dbug= '+d,binlog_inject_new_name_error';
--error ER_NO_UNIQUE_LOGFILE
FLUSH LOGS;
SET debug_dbug= @old_dbug;

INSERT INTO t4 VALUES (2);

--connection slave
--let $slave_sql_errno= 1590
--source include/wait_for_slave_sql_error.inc

# Search the error log for the error message.
# The bug was that 4 garbage bytes were output in the middle of the error
# message; by searching for a pattern that spans that location, we can
# catch the error.
let $log_error_= `SELECT @@GLOBAL.log_error`;
if(!$log_error_)
{
    # MySQL Server on windows is started with --console and thus
    # does not know the location of its .err log, use default location
    let $log_error_ = $MYSQLTEST_VARDIR/log/mysqld.2.err;
}
--let SEARCH_FILE= $log_error_
--let SEARCH_RANGE=-50000
--let SEARCH_PATTERN= Slave SQL: The incident LOST_EVENTS occurred on the master\. Message: error writing to the binary log, Internal MariaDB error code: 1590
--source include/search_pattern_in_file.inc

SELECT * FROM t4 ORDER BY a;
STOP SLAVE IO_THREAD;
SET sql_slave_skip_counter= 1;
--source include/start_slave.inc

--connection master
--save_master_pos

--connection slave
--sync_with_master
SELECT * FROM t4 ORDER BY a;


--connection slave
set @@global.binlog_checksum = @slave_save_binlog_checksum;
set @@global.slave_sql_verify_checksum = @save_slave_sql_verify_checksum;

--echo End of tests

--connection master
DROP TABLE t4;

--source include/rpl_end.inc
