Current File : //usr/share/mysql-test/t/status.test
# This test requires that --log-output includes 'table', and the general
# log is on
# embedded server causes different stat
-- source include/not_embedded.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
# Disable concurrent inserts to avoid sporadic test failures as it might
# affect the the value of variables used throughout the test case.
set @old_concurrent_insert= @@global.concurrent_insert;
set @@global.concurrent_insert= 0;
# Disable logging to table, since this will also cause table locking and unlocking, which will
# show up in SHOW STATUS and may cause sporadic failures
SET @old_log_output = @@global.log_output;
SET GLOBAL LOG_OUTPUT = 'FILE';
# PS causes different statistics
--disable_ps_protocol
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
flush status;
show status like 'Table_lock%';
select * from information_schema.session_status where variable_name like 'Table_lock%';
connection con1;
--echo # Switched to connection: con1
set sql_log_bin=0;
set @old_general_log = @@global.general_log;
set global general_log = 'OFF';
--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1(n int) engine=myisam;
insert into t1 values(1);
# Execute dummy select in order to ensure that tables used in the
# previous statement are unlocked and closed.
select 1;
connection con2;
--echo # Switched to connection: con2
lock tables t1 read;
unlock tables;
lock tables t1 read;
connection con1;
--echo # Switched to connection: con1
let $ID= `select connection_id()`;
--send update t1 set n = 3
connection con2;
--echo # Switched to connection: con2
# wait for the other query to start executing
let $wait_condition= select 1 from INFORMATION_SCHEMA.PROCESSLIST
where ID = $ID and STATE = "Waiting for table level lock";
--source include/wait_condition.inc
unlock tables;
connection con1;
--echo # Switched to connection: con1
reap;
show status like 'Table_locks_waited';
drop table t1;
set global general_log = @old_general_log;
disconnect con2;
disconnect con1;
connection default;
--echo # Switched to connection: default
# End of 4.1 tests
#
# last_query_cost
#
select 1;
show status like 'last_query_cost';
create table t1 (a int);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
select * from t1 where a=6;
show status like 'last_query_cost';
# Ensure value dosn't change by second status call
show status like 'last_query_cost';
select 1;
show status like 'last_query_cost';
drop table t1;
#
# Test for Bug#15933 max_used_connections is wrong after FLUSH STATUS
# if connections are cached
#
#
# The first suggested fix from the bug report was chosen
# (see http://bugs.mysql.com/bug.php?id=15933):
#
# a) On flushing the status, set max_used_connections to
# threads_connected, not to 0.
#
# b) Check if it is necessary to increment max_used_connections when
# taking a thread from the cache as well as when creating new threads
#
# Wait for at most $disconnect_timeout seconds for disconnects to finish.
let $disconnect_timeout = 10;
# Wait for any previous disconnects to finish.
FLUSH STATUS;
--disable_query_log
--disable_result_log
eval SET @wait_left = $disconnect_timeout;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
eval SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $wait_more = `SELECT @max_used_connections != 1 && @wait_left > 0`;
while ($wait_more)
{
sleep 1;
FLUSH STATUS;
SET @wait_left = @wait_left - 1;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
eval SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $wait_more = `SELECT @max_used_connections != 1 && @wait_left > 0`;
}
--enable_query_log
--enable_result_log
# Prerequisite.
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# Save original setting.
SET @save_thread_cache_size=@@thread_cache_size;
SET GLOBAL thread_cache_size=3;
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connection con1;
disconnect con2;
# Check that max_used_connections still reflects maximum value.
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# Check that after flush max_used_connections equals to current number
# of connections. First wait for previous disconnect to finish.
FLUSH STATUS;
--disable_query_log
--disable_result_log
eval SET @wait_left = $disconnect_timeout;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
eval SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $wait_more = `SELECT @max_used_connections != 2 && @wait_left > 0`;
while ($wait_more)
{
sleep 1;
FLUSH STATUS;
SET @wait_left = @wait_left - 1;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
eval SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $wait_more = `SELECT @max_used_connections != 2 && @wait_left > 0`;
}
--enable_query_log
--enable_result_log
# Check that we don't count disconnected thread any longer.
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# Check that max_used_connections is updated when cached thread is
# reused...
connect (con2,localhost,root,,);
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# ...and when new thread is created.
connect (con3,localhost,root,,);
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# Restore original setting.
connection default;
SET GLOBAL thread_cache_size=@save_thread_cache_size;
disconnect con3;
disconnect con2;
disconnect con1;
#
# Bug#30377 EXPLAIN loses last_query_cost when used with UNION
#
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1), (2);
SELECT a FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
EXPLAIN SELECT a FROM t1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
SHOW SESSION STATUS LIKE 'Last_query_cost';
EXPLAIN SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT a IN (SELECT a FROM t1) FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT (SELECT a FROM t1 LIMIT 1) x FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT * FROM t1 a, t1 b LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
DROP TABLE t1;
# End of 5.0 tests
#
# Ensure that SHOW STATUS only changes global status variables
#
connect (con1,localhost,root,,);
let $rnd_next = `show global status like 'handler_read_rnd_next'`;
let $tmp_table = `show global status like 'Created_tmp_tables'`;
show status like 'com_show_status';
show status like 'hand%write%';
show status like '%tmp%';
show status like 'hand%write%';
show status like '%tmp%';
show status like 'com_show_status';
let $rnd_next2 = `show global status like 'handler_read_rnd_next'`;
let $tmp_table2 = `show global status like 'Created_tmp_tables'`;
--disable_query_log
eval select substring_index('$rnd_next2',0x9,-1)-substring_index('$rnd_next',0x9,-1) as rnd_diff, substring_index('$tmp_table2',0x9,-1)-substring_index('$tmp_table',0x9,-1) as tmp_table_diff;
--enable_query_log
disconnect con1;
connection default;
#
# Bug#30252 Com_create_function is not incremented.
#
flush status;
show status like 'Com%function';
DELIMITER //;
create function f1 (x INTEGER) returns integer
begin
declare ret integer;
set ret = x * 10;
return ret;
end //
DELIMITER ;//
drop function f1;
show status like 'Com%function';
#
# Bug#37908 Skipped access right check caused server crash.
#
connect (root, localhost, root,,test);
connection root;
let $root_connection_id= `select connection_id()`;
--disable_warnings
create database db37908;
--enable_warnings
create table db37908.t1(f1 int);
insert into db37908.t1 values(1);
grant usage,execute on test.* to mysqltest_1@localhost;
delimiter |;
create procedure proc37908() begin select 1; end |
create function func37908() returns int sql security invoker
return (select * from db37908.t1 limit 1)|
delimiter ;|
connect (user1,localhost,mysqltest_1,,test);
connection user1;
let $user1_connection_id= `select connection_id()`;
--error ER_TABLEACCESS_DENIED_ERROR
select * from db37908.t1;
--error ER_TABLEACCESS_DENIED_ERROR
show status where variable_name ='uptime' and 2 in (select * from db37908.t1);
--error ER_TABLEACCESS_DENIED_ERROR
show procedure status where name ='proc37908' and 1 in (select f1 from db37908.t1);
--error ER_TABLEACCESS_DENIED_ERROR
show function status where name ='func37908' and 1 in (select func37908());
connection default;
disconnect user1;
disconnect root;
drop database db37908;
drop procedure proc37908;
drop function func37908;
REVOKE ALL PRIVILEGES, GRANT OPTION FROM mysqltest_1@localhost;
DROP USER mysqltest_1@localhost;
# Wait till the sessions user1 and root are disconnected
let $wait_condition =
SELECT COUNT(*) = 0
FROM information_schema.processlist
WHERE id in ('$root_connection_id','$user1_connection_id');
--source include/wait_condition.inc
#
# Bug#41131 "Questions" fails to increment - ignores statements instead stored procs
#
connect (con1,localhost,root,,);
connection con1;
--disable_warnings
DROP PROCEDURE IF EXISTS p1;
DROP FUNCTION IF EXISTS f1;
--enable_warnings
DELIMITER $$;
CREATE FUNCTION f1() RETURNS INTEGER
BEGIN
DECLARE foo INTEGER;
DECLARE bar INTEGER;
SET foo=1;
SET bar=2;
RETURN foo;
END $$
CREATE PROCEDURE p1()
BEGIN
SELECT 1;
END $$
DELIMITER ;$$
let $org_queries= `SHOW STATUS LIKE 'Queries'`;
SELECT f1();
CALL p1();
let $new_queries= `SHOW STATUS LIKE 'Queries'`;
--disable_query_log
let $diff= `SELECT SUBSTRING('$new_queries',9)-SUBSTRING('$org_queries',9)`;
--enable_query_log
eval SELECT $diff;
disconnect con1;
connection default;
DROP PROCEDURE p1;
DROP FUNCTION f1;
# End of 5.1 tests
--echo #
--echo # Test coverage for status variables which were introduced by
--echo # WL#5772 "Add partitioned Table Definition Cache to avoid
--echo # using LOCK_open and its derivatives in DML queries".
--echo #
create table t1 (i int);
create table t2 (j int);
create table t3 (k int);
--echo # Flush table cache to ensure that it is empty and reset status
--echo # variables. Since to test cache overflow we will need to reduce
--echo # its size, also save original table cache size.
flush tables;
flush status;
set @old_table_open_cache= @@table_open_cache;
--echo # Check that after reset all status variables are zero.
show status like 'table_open_cache_%';
--echo # The first statement accessing t1 after flush should result
--echo # in table cache miss.
select * from t1;
show status like 'table_open_cache_%';
--echo # The second statement accessing the same table should
--echo # result in table cache hit.
select * from t1;
show status like 'table_open_cache_%';
--echo # Again table cache miss if accessing different table.
select * from t2;
show status like 'table_open_cache_%';
--echo # And cache hit then accessing it second time.
select * from t2;
show status like 'table_open_cache_%';
--echo # The below statement should result in 2 cache hits and
--echo # 4 cache misses since it needs 6 table instances in total.
select * from t1 as a, t2 as b, t1 as c, t2 as d, t1 as e, t2 as f;
show status like 'table_open_cache_%';
--echo # Reduce size of table cache to check that status
--echo # variable tracking cache overflows works.
set @@global.table_open_cache= 4;
--echo # The below statement should result in table cache hit, but
--echo # as a side effect it should result in trimming of table
--echo # cache by 2 TABLE instances, meaning that overflow counter
--echo # will get increased by 2.
select * from t1;
show status like 'table_open_cache_%';
--echo # This statement should result in 4 cache hits, 2 cache misses/
--echo # overflows.
select * from t1 as a, t2 as b, t1 as c, t2 as d, t1 as e, t2 as f;
show status like 'table_open_cache_%';
--echo # Finally, the below statement should result in 1 cache miss
--echo # and 1 overflow since it accesses table which is not yet in
--echo # cache and table cache is full.
select * from t3;
show status like 'table_open_cache_%';
--echo # Cleanup
set @@global.table_open_cache= @old_table_open_cache;
drop tables t1, t2, t3;
# Restore global concurrent_insert value. Keep in the end of the test file.
--connection default
set @@global.concurrent_insert= @old_concurrent_insert;
SET GLOBAL log_output = @old_log_output;
# Wait till we reached the initial number of concurrent sessions
--source include/wait_until_count_sessions.inc
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