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|
################# suite/perfschema/t/show_plugin.test ##########################
# #
# MySQL plugins can define their own status variables and system variables. #
# This test exercises SHOW STATUS, SHOW VARIABLES and the status and system #
# variable tables while the EXAMPLE plugin is loaded and unloaded. #
# #
# The EXAMPLE plugin defines the following system and status variables: #
# Global system variables: #
# example_double_thdvar #
# example_double_var #
# example_enum_var #
# example_ulong_var #
# #
# Session variables: #
# example_double_thdvar - Local and/or global #
# #
# Global status: #
# example_func_example - Status function #
# #
################################################################################
--source include/have_perfschema.inc
--source include/not_embedded.inc
--source include/not_windows_embedded.inc
--source include/have_example_plugin.inc
--source include/have_innodb.inc
--source include/have_debug_sync.inc
--enable_connect_log
--echo #
--echo # ================================================================================
--echo # SETUP
--echo # ================================================================================
--echo # Save the initial number of concurrent sessions
--source include/count_sessions.inc
--echo #
--echo # Verify EXAMPLE plugin is not loaded
SELECT COUNT(*) = 0 AS "Expect 1" FROM information_schema.plugins WHERE plugin_name = "EXAMPLE";
--echo #
--echo # Create one session to force local and global system variables
--connect(con0, localhost, root,,)
--connection default
--echo #
--echo # ================================================================================
--echo # TEST 1- NO PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # ================================================================================
--echo # TEST 2 - PLUGIN LOAD, UNLOAD, RELOAD
--echo # ================================================================================
--echo # ================================================================================
--echo # 2.1 - INSTALL PLUGIN
--echo # ================================================================================
INSTALL PLUGIN example SONAME 'ha_example';
--echo #
--echo # ================================================================================
--echo # 2.1a - FORCE SYNC OF LOCAL AND GLOBAL SYSTEM VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--disconnect con0
--echo #
--echo # ================================================================================
--echo # 2.2 - SET PLUGIN VARS
--echo # ================================================================================
--echo # 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;
--echo # SESSION
SET SESSION example_double_thdvar = 102.9992;
--echo #
--echo # ================================================================================
--echo # 2.3 - VERIFY UPDATED PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # ================================================================================
--echo # 2.4 - UNINSTALL PLUGIN
--echo # ================================================================================
UNINSTALL PLUGIN example;
--echo #
--echo # ================================================================================
--echo # 2.5 - VERIFY NO PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # ================================================================================
--echo # 2.6 - REINSTALL PLUGIN
--echo # ================================================================================
--echo # Reinstall EXAMPLE plugin
INSTALL PLUGIN example SONAME 'ha_example';
--echo #
--echo # ================================================================================
--echo # 2.7 - SET PLUGIN VARS AGAIN
--echo # ================================================================================
--echo # 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;
--echo # SESSION
SET SESSION example_double_thdvar = 202.8882;
--echo #
--echo # ================================================================================
--echo # 2.8 - VERIFY PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # ================================================================================
--echo # 2.9 - UNINSTALL PLUGIN
--echo # ================================================================================
UNINSTALL PLUGIN example;
--echo #
--echo # ================================================================================
--echo # 2.10 - VERIFY NO PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # ================================================================================
--echo # TEST 3 - SESSION PLUGIN VARS ON MULTIPLE CONNECTIONS
--echo # ================================================================================
--echo #
--echo # ================================================================================
--echo # 3.1 - INSTALL PLUGIN
--echo # ================================================================================
INSTALL PLUGIN example SONAME 'ha_example';
--echo #
--echo # ================================================================================
--echo # 3.2 - SET GLOBAL AND DEFAULT CONNECTION VARS
--echo # ================================================================================
--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;
--echo #
--echo # ================================================================================
--echo # 3.3 - CONNECT 3 CLIENTS, SET LOCAL PLUGIN VARS
--echo # ================================================================================
--connect(con1, localhost, root,,)
SET SESSION example_double_thdvar = 300.1111;
--echo #
--connect(con2, localhost, root,,)
SET SESSION example_double_thdvar = 300.2222;
--echo #
--connect(con3, localhost, root,,)
SET SESSION example_double_thdvar = 300.3333;
--echo #
--connection default
--echo #
--echo # ================================================================================
--echo # 3.4 - VERIFY GLOBAL AND SESSION PLUGIN VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
--echo #
--echo # ================================================================================
--echo # 3.5 - DISCONNECT CLIENTS
--echo # ================================================================================
--connection con1
--disconnect con1
--source include/wait_until_disconnected.inc
--connection con2
--disconnect con2
--source include/wait_until_disconnected.inc
--connection con3
--disconnect con3
--source include/wait_until_disconnected.inc
--connection default
--echo #
--echo # ================================================================================
--echo # 3.6 - VERIFY SESSION VARS ARE REMOVED
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
--echo #
--echo # ================================================================================
--echo # 3.7 - RECONNECT 3 CLIENTS, SET SESSION VARS FOR EACH
--echo # ================================================================================
--connect(con1, localhost, root,,)
SET SESSION example_double_thdvar = 311.1111;
--echo #
--connect(con2, localhost, root,,)
SET SESSION example_double_thdvar = 322.2222;
--echo #
--connect(con3, localhost, root,,)
SET SESSION example_double_thdvar = 333.3333;
--echo #
--connection default
--echo #
--echo # ================================================================================
--echo # 3.8 - VERIFY GLOBAL AND SESSION VARS
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # Variables by thread
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
--echo #
--echo # ================================================================================
--echo # 3.9 - UNINSTALL PLUGIN, LEAVE CLIENTS CONNECTED
--echo # ================================================================================
UNINSTALL PLUGIN example;
--echo #
--echo # ================================================================================
--echo # 3.10 - VERIFY SESSION VARS ARE REMOVED
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # VARIABLES BY THREAD
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
--echo #
--echo # ================================================================================
--echo # 3.11 - DISCONNECT CLIENTS
--echo # ================================================================================
--connection con1
--disconnect con1
--source include/wait_until_disconnected.inc
--connection con2
--disconnect con2
--source include/wait_until_disconnected.inc
--connection con3
--disconnect con3
--source include/wait_until_disconnected.inc
--connection default
--echo #
--echo # ================================================================================
--echo # 3.12 - VERIFY CLIENTS ARE REMOVED
--echo # ================================================================================
--source ../include/show_plugin_verifier.inc
--echo #
--echo # VARIABLES BY THREAD
SELECT variable_name, variable_value FROM performance_schema.variables_by_thread
WHERE variable_name LIKE "example_%" ORDER BY variable_value;
--echo #
--echo # ================================================================================
--echo # TEST 4 - BUG#18008907: DEADLOCK WITH CHANGE_USER, SHOW VARIABLES, INSTALL PLUGIN
--echo # ================================================================================
--echo #
--echo #
--echo # ================================================================================
--echo # TEST 5 - BUG#22225549 MYSQL_CHANGE_USER/MYSQL_RESET_CONNECTION + SET INNODB...
--echo Update to plugin-defined session variable triggers resync with global
--echo variables and deadlocks on THD::LOCK_thd_sysvar.
--echo # ================================================================================
#
# The deadlock occurs when plugin-defined session variables are resynced with the global
# variables. To force a resync, change the user and update a session variable from a
# plugin, in this case InnoDB.
#
select @@session.innodb_strict_mode;
let $innodb_strict_mode_save = `select @@session.innodb_strict_mode`;
select user(), current_user();
--echo # change_user root
--change_user root
--echo #
--echo # Trigger a resync of session variables with global variables.
--echo #
set @@session.innodb_strict_mode=off;
--echo #
--echo # Restore
--echo #
eval set @@session.innodb_strict_mode=$innodb_strict_mode_save;
select @@session.innodb_strict_mode;
--echo #
--echo # ================================================================================
--echo # CLEAN UP
--echo # ================================================================================
--connection default
--echo #
--echo #
--disable_connect_log
--echo #
--echo # Wait till we reached the initial number of concurrent sessions
--source include/wait_until_count_sessions.inc
|
