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|
================================================================================
SETUP
================================================================================
# Save the initial number of concurrent sessions
# Verify EXAMPLE plugin is not loaded
SELECT COUNT(*) = 0 AS "Expect 1" FROM information_schema.plugins WHERE plugin_name = "EXAMPLE";
Expect 1
1
# Create one session to force local and global system variables
connect con0, localhost, root,,;
connection default;
================================================================================
TEST 1- NO PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
================================================================================
TEST 2 - PLUGIN LOAD, UNLOAD, RELOAD
================================================================================
================================================================================
2.1 - INSTALL PLUGIN
================================================================================
INSTALL PLUGIN example SONAME 'ha_example';
================================================================================
2.1a - FORCE SYNC OF LOCAL AND GLOBAL SYSTEM VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 8, int_var is 0, double_var is 8.500000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 8, int_var is 0, double_var is 8.500000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 8.500000
example_double_var 8.500000
example_enum_var e1
example_int_var 0
example_ulong_var 8
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 8.500000
example_double_var 8.500000
example_enum_var e1
example_int_var 0
example_ulong_var 8
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 8.500000
example_double_var 8.500000
example_enum_var e1
example_int_var 0
example_ulong_var 8
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
disconnect con0;
================================================================================
2.2 - SET PLUGIN VARS
================================================================================
# GLOBAL
SET GLOBAL example_ulong_var = 100;
SET GLOBAL example_enum_var = e1;
SET GLOBAL example_double_var = 100.9990;
SET GLOBAL example_double_thdvar = 101.9991;
# SESSION
SET SESSION example_double_thdvar = 102.9992;
================================================================================
2.3 - VERIFY UPDATED PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 100, int_var is 0, double_var is 100.999000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 100, int_var is 0, double_var is 100.999000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 101.999100
example_double_var 100.999000
example_enum_var e1
example_int_var 0
example_ulong_var 100
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 102.999200
example_double_var 100.999000
example_enum_var e1
example_int_var 0
example_ulong_var 100
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 101.999100
example_double_var 100.999000
example_enum_var e1
example_int_var 0
example_ulong_var 100
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
================================================================================
2.4 - UNINSTALL PLUGIN
================================================================================
UNINSTALL PLUGIN example;
================================================================================
2.5 - VERIFY NO PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
================================================================================
2.6 - REINSTALL PLUGIN
================================================================================
# Reinstall EXAMPLE plugin
INSTALL PLUGIN example SONAME 'ha_example';
================================================================================
2.7 - SET PLUGIN VARS AGAIN
================================================================================
# GLOBAL
SET GLOBAL example_ulong_var = 200;
SET GLOBAL example_enum_var = e2;
SET GLOBAL example_double_var = 200.8880;
SET GLOBAL example_double_thdvar = 201.8881;
# SESSION
SET SESSION example_double_thdvar = 202.8882;
================================================================================
2.8 - VERIFY PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 1, ulong_var is 200, int_var is 0, double_var is 200.888000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 1, ulong_var is 200, int_var is 0, double_var is 200.888000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 201.888100
example_double_var 200.888000
example_enum_var e2
example_int_var 0
example_ulong_var 200
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 202.888200
example_double_var 200.888000
example_enum_var e2
example_int_var 0
example_ulong_var 200
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 201.888100
example_double_var 200.888000
example_enum_var e2
example_int_var 0
example_ulong_var 200
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
================================================================================
2.9 - UNINSTALL PLUGIN
================================================================================
UNINSTALL PLUGIN example;
================================================================================
2.10 - VERIFY NO PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
================================================================================
TEST 3 - SESSION PLUGIN VARS ON MULTIPLE CONNECTIONS
================================================================================
================================================================================
3.1 - INSTALL PLUGIN
================================================================================
INSTALL PLUGIN example SONAME 'ha_example';
================================================================================
3.2 - SET GLOBAL AND DEFAULT CONNECTION VARS
================================================================================
connection default;
SET GLOBAL example_ulong_var = 300;
SET GLOBAL example_enum_var = e1;
SET GLOBAL example_double_var = 301.0000;
SET GLOBAL example_double_thdvar = 302.0000;
SET SESSION example_double_thdvar = 300.0000;
================================================================================
3.3 - CONNECT 3 CLIENTS, SET LOCAL PLUGIN VARS
================================================================================
connect con1, localhost, root,,;
SET SESSION example_double_thdvar = 300.1111;
connect con2, localhost, root,,;
SET SESSION example_double_thdvar = 300.2222;
connect con3, localhost, root,,;
SET SESSION example_double_thdvar = 300.3333;
connection default;
================================================================================
3.4 - VERIFY GLOBAL AND SESSION PLUGIN VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 300.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
# Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
variable_name variable_value
================================================================================
3.5 - DISCONNECT CLIENTS
================================================================================
connection con1;
disconnect con1;
connection con2;
disconnect con2;
connection con3;
disconnect con3;
connection default;
================================================================================
3.6 - VERIFY SESSION VARS ARE REMOVED
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 300.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
# Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
variable_name variable_value
================================================================================
3.7 - RECONNECT 3 CLIENTS, SET SESSION VARS FOR EACH
================================================================================
connect con1, localhost, root,,;
SET SESSION example_double_thdvar = 311.1111;
connect con2, localhost, root,,;
SET SESSION example_double_thdvar = 322.2222;
connect con3, localhost, root,,;
SET SESSION example_double_thdvar = 333.3333;
connection default;
================================================================================
3.8 - VERIFY GLOBAL AND SESSION VARS
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
Example_func_example enum_var is 0, ulong_var is 300, int_var is 0, double_var is 301.000000, really
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
example_double_thdvar 300.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
example_double_thdvar 302.000000
example_double_var 301.000000
example_enum_var e1
example_int_var 0
example_ulong_var 300
example_varopt_default 5
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
# Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
variable_name variable_value
================================================================================
3.9 - UNINSTALL PLUGIN, LEAVE CLIENTS CONNECTED
================================================================================
UNINSTALL PLUGIN example;
================================================================================
3.10 - VERIFY SESSION VARS ARE REMOVED
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
# VARIABLES BY THREAD
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
variable_name variable_value
================================================================================
3.11 - DISCONNECT CLIENTS
================================================================================
connection con1;
disconnect con1;
connection con2;
disconnect con2;
connection con3;
disconnect con3;
connection default;
================================================================================
3.12 - VERIFY CLIENTS ARE REMOVED
================================================================================
SHOW GLOBAL STATUS LIKE "example_%";
Variable_name Value
SHOW SESSION STATUS LIKE "example_%";
Variable_name Value
SHOW GLOBAL VARIABLES LIKE "example_%";
Variable_name Value
SHOW SESSION VARIABLES LIKE "example_%";
Variable_name Value
SELECT variable_name, variable_value FROM performance_schema.global_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_status WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.global_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
SELECT variable_name, variable_value FROM performance_schema.session_variables WHERE variable_name LIKE "example_%";
variable_name variable_value
# VARIABLES BY THREAD
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
variable_name variable_value
================================================================================
TEST 4 - BUG#18008907: DEADLOCK WITH CHANGE_USER, SHOW VARIABLES, INSTALL PLUGIN
================================================================================
================================================================================
TEST 5 - BUG#22225549 MYSQL_CHANGE_USER/MYSQL_RESET_CONNECTION + SET INNODB...
Update to plugin-defined session variable triggers resync with global
variables and deadlocks on THD::LOCK_thd_sysvar.
================================================================================
select @@session.innodb_strict_mode;
@@session.innodb_strict_mode
1
select user(), current_user();
user() current_user()
root@localhost root@localhost
change_user root
#
# Trigger a resync of session variables with global variables.
#
set @@session.innodb_strict_mode=off;
# Restore
set @@session.innodb_strict_mode=1;
select @@session.innodb_strict_mode;
@@session.innodb_strict_mode
1
================================================================================
CLEAN UP
================================================================================
connection default;
# Wait till we reached the initial number of concurrent sessions
|
