mariadb/mysql-test/t/log_state.test
unknown 974201c7e0 Fix for bug #29131: SHOW VARIABLES reports variable 'log' but SET
doesn't recognize it
  
This is a 5.1 version of the patch.
  
Problem:
  
'log' and 'log_slow_queries' were "fixed" variables, i.e. they showed up
in SHOW VARIABLES, but could not be used in expressions like 
"select @@log". Also, using them in the SET statement produced an 
incorrect "unknown system variable" error.
  
Solution:

Since as of MySQL 5.1.12 one can enable or disable the general query log
or the slow query log at runtime by changing values of
general_log/slow_query_log, make 'log' and 'log_slow_queries" to be 
synonyms for 'general_log' and 'slow_query_log' respectively.  This 
makes expressions using the '@@var' syntax backward compatible with 
5.0 and SHOW VARIABLES output to be consistent with the SET statement.


mysql-test/r/log_state.result:
  Added a test case for bug #29131.
mysql-test/t/log_state.test:
  Added a test case for bug #29131.
sql/set_var.cc:
  Made the 'log' and 'log_slow_queries' system variables to be synonyms for 'general_log' and 'slow_query_log'.
2007-10-25 14:03:24 +04:00

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6.2 KiB
Text

-- source include/not_embedded.inc
--source include/have_csv.inc
--disable_ps_protocol
set global general_log= OFF;
truncate table mysql.general_log;
truncate table mysql.slow_log;
show global variables
where Variable_name = 'log' or Variable_name = 'log_slow_queries' or
Variable_name = 'general_log' or Variable_name = 'slow_query_log';
flush logs;
set global general_log= ON;
create table t1(f1 int);
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
set global general_log= OFF;
drop table t1;
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
set global general_log= ON;
flush logs;
show global variables
where Variable_name = 'log' or Variable_name = 'log_slow_queries' or
Variable_name = 'general_log' or Variable_name = 'slow_query_log';
connect (con1,localhost,root,,);
connection con1;
set session long_query_time=1;
select sleep(2);
--replace_column 1 TIMESTAMP 2 USER_HOST 3 QUERY_TIME
select * from mysql.slow_log where sql_text NOT LIKE '%slow_log%';
connection default;
set global slow_query_log= ON;
connection con1;
set session long_query_time=1;
select sleep(2);
--replace_column 1 TIMESTAMP 2 USER_HOST 3 QUERY_TIME
select * from mysql.slow_log where sql_text NOT LIKE '%slow_log%';
connection default;
show global variables
where Variable_name = 'log' or Variable_name = 'log_slow_queries' or
Variable_name = 'general_log' or Variable_name = 'slow_query_log';
set global general_log= ON;
set global general_log= OFF;
set global general_log= OFF;
set global slow_query_log= ON;
set global slow_query_log= OFF;
set global slow_query_log= OFF;
set global general_log= ON;
truncate table mysql.general_log;
create table t1(f1 int);
drop table t1;
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
set global general_log= OFF;
truncate table mysql.general_log;
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
set global general_log= ON;
show global variables
where Variable_name = 'log' or Variable_name = 'log_slow_queries' or
Variable_name = 'general_log' or Variable_name = 'slow_query_log';
--replace_column 2 #
show variables like 'general_log_file';
--replace_column 2 #
show variables like 'slow_query_log_file';
show variables like 'log_output';
# Can't set general_log_file to a non existing file
--error 1231
set global general_log_file='/not exiting path/log.master';
# Can't set general_log_file to a directory
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
--error 1231
eval set global general_log_file='$MYSQLTEST_VARDIR';
# Can't set general_log_file to empty string
--error 1231
set global general_log_file='';
--replace_column 2 #
show variables like 'general_log_file';
set global general_log= OFF;
--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
eval set global general_log_file='$MYSQLTEST_VARDIR/tmp/log.master';
set global general_log= ON;
create table t1(f1 int);
drop table t1;
set global general_log= OFF;
set global general_log_file=default;
set global general_log= ON;
create table t1(f1 int);
drop table t1;
--replace_column 2 #
show variables like 'general_log_file';
--replace_column 2 #
show variables like 'slow_query_log_file';
set global general_log= default;
set global slow_query_log= default;
set global general_log_file= default;
set global slow_query_log_file= default;
show variables like 'general_log';
show variables like 'slow_query_log';
set global general_log=ON;
set global log_output=default;
show variables like 'log_output';
set global general_log=OFF;
set global log_output=FILE;
truncate table mysql.general_log;
show variables like 'log_output';
set global general_log=ON;
create table t1(f1 int);
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
set global general_log=OFF;
set global log_output="FILE,TABLE";
show variables like 'log_output';
set global general_log=ON;
drop table t1;
--replace_column 1 TIMESTAMP 2 USER_HOST 3 #
select * from mysql.general_log;
#
# Bug#29129 (Resetting general_log while the GLOBAL READ LOCK is set causes
# a deadlock)
# save state
SET @old_general_log_state = @@global.general_log;
SET @old_slow_log_state = @@global.slow_query_log;
# Test ON->OFF transition under a GLOBAL READ LOCK
SET GLOBAL general_log = ON;
SET GLOBAL slow_query_log = ON;
FLUSH TABLES WITH READ LOCK;
SET GLOBAL general_log = OFF;
SET GLOBAL slow_query_log = OFF;
UNLOCK TABLES;
# Test OFF->ON transition under a GLOBAL READ LOCK
FLUSH TABLES WITH READ LOCK;
SET GLOBAL general_log = ON;
SET GLOBAL slow_query_log = ON;
UNLOCK TABLES;
# Test ON->OFF transition under a GLOBAL READ_ONLY
SET GLOBAL READ_ONLY = ON;
SET GLOBAL general_log = OFF;
SET GLOBAL slow_query_log = OFF;
SET GLOBAL READ_ONLY = OFF;
# Test OFF->ON transition under a GLOBAL READ_ONLY
SET GLOBAL READ_ONLY = ON;
SET GLOBAL general_log = ON;
SET GLOBAL slow_query_log = ON;
SET GLOBAL READ_ONLY = OFF;
# Restore state
SET GLOBAL general_log = @old_general_log_state;
SET GLOBAL slow_query_log = @old_slow_log_state;
#
# Bug #29131: SHOW VARIABLES reports variable 'log' but SET doesn't recognize it
#
SET @old_general_log_state = @@global.general_log;
SET @old_slow_log_state = @@global.slow_query_log;
SHOW VARIABLES LIKE 'general_log';
SHOW VARIABLES LIKE 'log';
SELECT @@general_log, @@log;
SET GLOBAL log = 0;
SHOW VARIABLES LIKE 'general_log';
SHOW VARIABLES LIKE 'log';
SELECT @@general_log, @@log;
SET GLOBAL general_log = 1;
SHOW VARIABLES LIKE 'general_log';
SHOW VARIABLES LIKE 'log';
SELECT @@general_log, @@log;
SHOW VARIABLES LIKE 'slow_query_log';
SHOW VARIABLES LIKE 'log_slow_queries';
SELECT @@slow_query_log, @@log_slow_queries;
SET GLOBAL log_slow_queries = 0;
SHOW VARIABLES LIKE 'slow_query_log';
SHOW VARIABLES LIKE 'log_slow_queries';
SELECT @@slow_query_log, @@log_slow_queries;
SET GLOBAL slow_query_log = 1;
SHOW VARIABLES LIKE 'slow_query_log';
SHOW VARIABLES LIKE 'log_slow_queries';
SELECT @@slow_query_log, @@log_slow_queries;
SET GLOBAL general_log = @old_general_log_state;
SET GLOBAL slow_query_log = @old_slow_log_state;
--echo End of 5.1 tests
--enable_ps_protocol
#
# Cleanup (must be done last to avoid delayed 'Quit' message in general log)
#
disconnect con1;
# Remove the log files that was created in the "default location"
# i.e var/run
--remove_file $MYSQLTEST_VARDIR/run/master.log