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#
# BUG#23300: Slow query log on slave does not log slow replicated statements
#
# Description:
#   The slave should log slow queries replicated from master when
#   --log-slow-slave-statements is used.
#
#   Test is implemented as follows:
#      i) stop slave
#     ii) On slave, set long_query_time to a small value.
#     ii) start slave so that long_query_time variable is picked by sql thread
#    iii) On master, do one short time query and one long time query, on slave
#         and check that slow query is logged to slow query log but fast query 
#         is not.
#     iv) On slave, check that slow queries go into the slow log and fast dont,
#         when issued through a regular client connection
#      v) On slave, check that slow queries go into the slow log and fast dont
#         when we use SET TIMESTAMP= 1 on a regular client connection.
#     vi) check that when setting slow_query_log= OFF in a connection 'extra2'
#         prevents logging slow queries in a connection 'extra'
#
# OBS: 
#   This test only runs for statement binlogging format because on row
#   format slow queries do not get slow query logged. Due to the
#   sleep() command, the insert would be binlogged in row format if
#   binlog_format=MIXED. Hence, we do not use binlog_format=MIXED.

source include/master-slave.inc;
source include/have_binlog_format_statement.inc;

CALL mtr.add_suppression("Unsafe statement written to the binary log using statement format since BINLOG_FORMAT = STATEMENT");
call mtr.add_suppression("Slave SQL.*Request to stop slave SQL Thread received while applying a group that has non-transactional changes; waiting for completion of the group");

# Prepare slave for different long_query_time we need to stop the slave 
# and restart it as long_query_time variable is dynamic and, after 
# setting it, it only takes effect on new connections. 
#
# Reference: 
#   http://dev.mysql.com/doc/refman/6.0/en/set-option.html
connection slave;

source include/stop_slave.inc;

SET @old_log_output= @@log_output;
SET GLOBAL log_output= 'TABLE';
SET @old_long_query_time= @@long_query_time;
SET GLOBAL long_query_time= 2;
TRUNCATE mysql.slow_log;

source include/start_slave.inc;

connection master;
CREATE TABLE t1 (a int, b int); 

# test:
#   check that slave logs the slow query to the slow log, but not the fast one.

let $slow_query= INSERT INTO t1 values(1, sleep(3));
let $fast_query= INSERT INTO t1 values(1, 1);

eval $fast_query;
--disable_warnings
eval $slow_query;
--enable_warnings
--source include/sync_slave_sql_with_master.inc

let $found_fast_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$fast_query'`;
let $found_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($found_fast_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Fast query FOUND in slow query log. Bailing out!";
}

if (!$found_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query NOT FOUND in slow query log. Bailing out!";
}
TRUNCATE mysql.slow_log;

# regular checks for slow query log (using a new connection - 'extra' - to slave)

# test: 
#   when using direct connections to the slave, check that slow query is logged 
#   but not the fast one.

connect(extra,127.0.0.1,root,,test,$SLAVE_MYPORT);
connection extra;

let $fast_query= SELECT 1;
let $slow_query= SELECT 1, sleep(3);

eval $slow_query;
eval $fast_query;

let $found_fast_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$fast_query'`;
let $found_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($found_fast_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Fast query FOUND in slow query log. Bailing out!";
}

if (!$found_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query NOT FOUND in slow query log. Bailing out!";
}
TRUNCATE mysql.slow_log;

# test:
#   when using direct connections to the slave, check that when setting timestamp to 1 the 
#   slow query is logged but the fast one is not.

let $fast_query= SELECT 2;
let $slow_query= SELECT 2, sleep(3);

SET TIMESTAMP= 1;
eval $slow_query;
eval $fast_query;

let $found_fast_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$fast_query'`;
let $found_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($found_fast_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Fast query FOUND in slow query log. Bailing out!";
}

if (!$found_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query NOT FOUND in slow query log. Bailing out!";
}
TRUNCATE mysql.slow_log;

# test: 
#   check that when setting the slow_query_log= OFF on connection 'extra2'
#   prevents connection 'extra' from logging to slow query log.

let $fast_query= SELECT 3;
let $slow_query= SELECT 3, sleep(3);

connect(extra2,127.0.0.1,root,,test,$SLAVE_MYPORT);
connection extra2;

SET @old_slow_query_log= @@slow_query_log;
SET GLOBAL slow_query_log= 'OFF';

connection extra;

eval $slow_query;
eval $fast_query;

let $found_fast_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$fast_query'`;
let $found_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($found_fast_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Fast query FOUND in slow query log when slow_query_log= OFF. Bailing out!";
}

if ($found_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query FOUND in slow query log when slow_query_log= OFF. Bailing out!";
}
TRUNCATE mysql.slow_log;

# clean up: drop tables, reset the variables back to the previous value,
#           disconnect extra connections
connection extra2;

SET GLOBAL slow_query_log= @old_slow_query_log;

connection master;
DROP TABLE t1;
--source include/sync_slave_sql_with_master.inc

source include/stop_slave.inc;

SET GLOBAL long_query_time= @old_long_query_time;
SET GLOBAL log_output= @old_log_output;

source include/start_slave.inc;

disconnect extra;
disconnect extra2;

#
# BUG#50620: Adding an index to a table prevents slave from logging into slow log
#

--source include/rpl_reset.inc

-- connection master
SET @old_log_output= @@log_output;
SET GLOBAL log_output= 'TABLE';
SET GLOBAL long_query_time= 2;
SET @old_long_query_time= @@long_query_time;
SET SESSION long_query_time= 2;
TRUNCATE mysql.slow_log;
-- connection slave

-- source include/stop_slave.inc
SET @old_log_output= @@log_output;
SET GLOBAL log_output= 'TABLE';
SET @old_long_query_time= @@long_query_time;
SET GLOBAL long_query_time= 2;
TRUNCATE mysql.slow_log;
-- source include/start_slave.inc

let $slow_query= INSERT INTO t1 values(1, sleep(3));

-- connection master
CREATE TABLE t1 (a int, b int); 

-- echo ********************************************************************
-- echo **** INSERT one row that exceeds long_query_time
-- echo **** Outcome: query ends up in both master and slave slow log
-- echo ********************************************************************

-- disable_warnings
-- eval $slow_query
-- enable_warnings

let $master_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;
--source include/sync_slave_sql_with_master.inc
let $slave_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($master_slow_query != $slave_slow_query)
{
  -- connection master
  -- echo ***********************************************
  -- echo ** DUMPING MASTER SLOW LOG CONTENTS 
  -- echo ***********************************************
  SELECT * FROM mysql.slow_log;

  -- connection slave
  -- echo ***********************************************
  -- echo ** DUMPING SLAVE SLOW LOG CONTENTS 
  -- echo ***********************************************
  SELECT * FROM mysql.slow_log;

  -- die "Assertion failed! Master and slave slow log contents differ. Bailing out!"
}

if ($master_slow_query == $slave_slow_query)
{
  -- echo ### Assertion is good. Both Master and Slave exhibit the 
  -- echo ### same number of queries in slow log: $master_slow_query
}

TRUNCATE mysql.slow_log;
-- connection master
TRUNCATE mysql.slow_log;

-- echo ********************************************************************
-- echo **** Now do inserts again, but first add an index to the table.
-- echo **** Outcome: Note that the slave contains the same one entry (as 
-- echo ****          the master does)  whereas before the patch it did not.
-- echo ********************************************************************

ALTER TABLE t1 ADD INDEX id1(a);

-- disable_warnings
-- eval $slow_query
-- enable_warnings

let $master_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;
--source include/sync_slave_sql_with_master.inc
let $slave_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;

if ($master_slow_query != $slave_slow_query)
{
  -- connection master
  -- echo ***********************************************
  -- echo ** DUMPING MASTER SLOW LOG CONTENTS 
  -- echo ***********************************************
  SELECT * FROM mysql.slow_log;

  -- connection slave
  -- echo ***********************************************
  -- echo ** DUMPING SLAVE SLOW LOG CONTENTS 
  -- echo ***********************************************
  SELECT * FROM mysql.slow_log;

  -- die "Assertion failed! Master and slave slow log contents differ. Bailing out!"
}

if ($master_slow_query == $slave_slow_query)
{
  -- echo ### Assertion is good. Both Master and Slave exhibit the 
  -- echo ### same number of queries in slow log: $master_slow_query
}

-- echo ********************************************************************
-- echo **** TRUNCATE the slow log then check whether runtime changes of
-- echo **** log_slow_slave_statements work without slave restart.
-- echo ********************************************************************

SET @old_log_slow_slave_statements= @@global.log_slow_slave_statements;
SET @@global.log_slow_slave_statements = off;
TRUNCATE mysql.slow_log;

-- connection master

--disable_warnings
-- eval $slow_query;
--enable_warnings

--source include/sync_slave_sql_with_master.inc
-- connection slave

let $slave_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;
if ($slave_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query FOUND in slow query log. Bailing out!";
}

SET @@global.log_slow_slave_statements = on;

-- connection master

--disable_warnings
-- eval $slow_query;
--enable_warnings

--source include/sync_slave_sql_with_master.inc
-- connection slave

let $slave_slow_query= `SELECT count(*) = 1 FROM mysql.slow_log WHERE sql_text like '$slow_query'`;
if (!$slave_slow_query)
{
  SELECT * FROM mysql.slow_log;
  die "Assertion failed! Slow query NOT FOUND in slow query log. Bailing out!";
}

-- connection master
SET @@global.log_output= @old_log_output;
SET @@global.long_query_time= @old_long_query_time;
DROP TABLE t1;

--source include/sync_slave_sql_with_master.inc
SET @@global.log_output= @old_log_output;
SET @@global.long_query_time= @old_long_query_time;
SET @@global.log_slow_slave_statements= @old_log_slow_slave_statements;
--source include/rpl_end.inc