mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
185 lines
7.7 KiB
Plaintext
185 lines
7.7 KiB
Plaintext
############## mysql-test\t\max_connections_basic.test ###############
|
|
# #
|
|
# Variable Name: max_connections #
|
|
# Scope: GLOBAL #
|
|
# Access Type: Dynamic #
|
|
# Data Type: numeric #
|
|
# Default Value:151 #
|
|
# Range: 1-100000 #
|
|
# #
|
|
# #
|
|
# Creation Date: 2008-02-07 #
|
|
# Author: Salman #
|
|
# #
|
|
# Description: Test Cases of Dynamic System Variable max_connections #
|
|
# that checks the behavior of this variable in the following ways#
|
|
# * Default Value #
|
|
# * Valid & Invalid values #
|
|
# * Scope & Access method #
|
|
# * Data Integrity #
|
|
# #
|
|
# Reference: http://dev.mysql.com/doc/refman/5.1/en/ #
|
|
# server-system-variables.html #
|
|
# #
|
|
###############################################################################
|
|
|
|
--source include/load_sysvars.inc
|
|
|
|
###############################################################
|
|
# START OF max_connections TESTS #
|
|
###############################################################
|
|
|
|
|
|
###################################################################
|
|
# Saving initial value of max_connections in a temporary variable #
|
|
###################################################################
|
|
|
|
SET @start_value = @@global.max_connections;
|
|
SELECT @start_value;
|
|
|
|
|
|
--echo '#--------------------FN_DYNVARS_074_01------------------------#'
|
|
##################################################################
|
|
# Display the DEFAULT value of max_connections #
|
|
##################################################################
|
|
|
|
SET @@global.max_connections = 5000;
|
|
SET @@global.max_connections = DEFAULT;
|
|
SELECT @@global.max_connections;
|
|
--echo 'Bug# 34876: This variable has invalid default value as compared to documentation';
|
|
|
|
|
|
--echo '#---------------------FN_DYNVARS_074_02-------------------------#'
|
|
###############################################
|
|
# Verify default value of variable #
|
|
###############################################
|
|
|
|
SET @@global.max_connections = @start_value;
|
|
SELECT @@global.max_connections = 151;
|
|
|
|
|
|
--echo '#--------------------FN_DYNVARS_074_03------------------------#'
|
|
##################################################################
|
|
# Change the value of max_connections to a valid value #
|
|
##################################################################
|
|
|
|
SET @@global.max_connections = 100000;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 99999;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 65536;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 1;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 2;
|
|
SELECT @@global.max_connections;
|
|
--echo 'Bug# 34877: Invalid Values are coming in variable on assigning valid values';
|
|
|
|
|
|
--echo '#--------------------FN_DYNVARS_074_04-------------------------#'
|
|
#####################################################################
|
|
# Change the value of max_connections to invalid value #
|
|
#####################################################################
|
|
|
|
SET @@global.max_connections = -1;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 100000000000;
|
|
SELECT @@global.max_connections;
|
|
--Error ER_WRONG_TYPE_FOR_VAR
|
|
SET @@global.max_connections = 10000.01;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = -1024;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 0;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = 100001;
|
|
SELECT @@global.max_connections;
|
|
|
|
--echo 'Bug # 34837: Errors are not coming on assigning invalid values to variable';
|
|
|
|
--Error ER_WRONG_TYPE_FOR_VAR
|
|
SET @@global.max_connections = ON;
|
|
SELECT @@global.max_connections;
|
|
--Error ER_WRONG_TYPE_FOR_VAR
|
|
SET @@global.max_connections = 'test';
|
|
SELECT @@global.max_connections;
|
|
|
|
|
|
--echo '#-------------------FN_DYNVARS_074_05----------------------------#'
|
|
#####################################################################
|
|
# Test if accessing session max_connections gives error #
|
|
#####################################################################
|
|
|
|
--Error ER_GLOBAL_VARIABLE
|
|
SET @@session.max_connections = 4096;
|
|
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
|
|
SELECT @@session.max_connections;
|
|
|
|
|
|
--echo '#----------------------FN_DYNVARS_074_06------------------------#'
|
|
##############################################################################
|
|
# Check if the value in GLOBAL & SESSION Tables matches values in variable #
|
|
##############################################################################
|
|
|
|
SELECT @@global.max_connections = VARIABLE_VALUE
|
|
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
|
|
WHERE VARIABLE_NAME='max_connections';
|
|
|
|
SELECT @@max_connections = VARIABLE_VALUE
|
|
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
|
|
WHERE VARIABLE_NAME='max_connections';
|
|
|
|
|
|
--echo '#---------------------FN_DYNVARS_074_07----------------------#'
|
|
###################################################################
|
|
# Check if TRUE and FALSE values can be used on variable #
|
|
###################################################################
|
|
|
|
SET @@global.max_connections = TRUE;
|
|
SELECT @@global.max_connections;
|
|
SET @@global.max_connections = FALSE;
|
|
SELECT @@global.max_connections;
|
|
|
|
|
|
--echo '#---------------------FN_DYNVARS_074_08----------------------#'
|
|
########################################################################################################
|
|
# Check if accessing variable with SESSION,LOCAL and without SCOPE points to same session variable #
|
|
########################################################################################################
|
|
|
|
SET @@global.max_connections = 5000;
|
|
SELECT @@max_connections = @@global.max_connections;
|
|
|
|
|
|
--echo '#---------------------FN_DYNVARS_074_09----------------------#'
|
|
##########################################################################
|
|
# Check if max_connections can be accessed with and without @@ sign #
|
|
##########################################################################
|
|
|
|
--Error ER_GLOBAL_VARIABLE
|
|
SET max_connections = 6000;
|
|
SELECT @@max_connections;
|
|
--Error ER_PARSE_ERROR
|
|
SET local.max_connections = 7000;
|
|
--Error ER_UNKNOWN_TABLE
|
|
SELECT local.max_connections;
|
|
--Error ER_PARSE_ERROR
|
|
SET global.max_connections = 8000;
|
|
--Error ER_UNKNOWN_TABLE
|
|
SELECT global.max_connections;
|
|
--Error ER_BAD_FIELD_ERROR
|
|
SELECT max_connections = @@session.max_connections;
|
|
|
|
|
|
##############################
|
|
# Restore initial value #
|
|
##############################
|
|
|
|
SET @@global.max_connections = @start_value;
|
|
SELECT @@global.max_connections;
|
|
|
|
|
|
##################################################################
|
|
# END OF max_connections TESTS #
|
|
##################################################################
|
|
|