MDEV-4883 - Not all host_cache tests have been merged

Merged main.host_cache_size_functionality test.

Test had to be adjusted because MariaDB doesn't have
MySQL variables auto-tuning code.

mysql-test/r/host_cache_size_functionality.result

+'#________________________VAR_06_Host_Cache_Size__________________#'
+echo '##'
+--echo '#---------------------WL6372_VAR_6_01----------------------#'
+####################################################################
+#   Checking default value                                         #
+####################################################################
+SELECT COUNT(@@GLOBAL.Host_Cache_Size)
+1 Expected
+set @Default_host_cache_size=128;
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+@@global.Host_Cache_Size=@Default_host_cache_size
+1
+1 Expected
+'#---------------------WL6372_VAR_6_02----------------------#'
+# Restart server with Host_Cache_Size 1
+SELECT @@GLOBAL.Host_Cache_Size;
+@@GLOBAL.Host_Cache_Size
+1
+1 Expected
+set @Default_host_cache_size=128;
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+@@global.Host_Cache_Size=@Default_host_cache_size
+1
+1 Expected
+'#---------------------WL6372_VAR_6_03----------------------#'
+SET @@local.Host_Cache_Size=1;
+ERROR HY000: Variable 'host_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
+Expected error 'Global variable'
+SET @@session.Host_Cache_Size=1;
+ERROR HY000: Variable 'host_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
+Expected error 'Global variable'
+SET @@GLOBAL.Host_Cache_Size=1;
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+COUNT(@@GLOBAL.Host_Cache_Size)
+1
+1 Expected
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+@@global.Host_Cache_Size=@Default_host_cache_size
+1
+1 Expected
+'#---------------------WL6372_VAR_6_04----------------------#'
+SELECT @@GLOBAL.Host_Cache_Size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
+WHERE VARIABLE_NAME='Host_Cache_Size';
+@@GLOBAL.Host_Cache_Size = VARIABLE_VALUE
+1
+1 Expected
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+COUNT(@@GLOBAL.Host_Cache_Size)
+1
+1 Expected
+SELECT COUNT(VARIABLE_VALUE)
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+WHERE VARIABLE_NAME='Host_Cache_Size';
+COUNT(VARIABLE_VALUE)
+1
+1 Expected
+'#---------------------WL6372_VAR_6_05----------------------#'
+SELECT @@Host_Cache_Size = @@GLOBAL.Host_Cache_Size;
+@@Host_Cache_Size = @@GLOBAL.Host_Cache_Size
+1
+1 Expected
+SELECT COUNT(@@local.Host_Cache_Size);
+ERROR HY000: Variable 'host_cache_size' is a GLOBAL variable
+Expected error 'Variable is a GLOBAL variable'
+SELECT COUNT(@@SESSION.Host_Cache_Size);
+ERROR HY000: Variable 'host_cache_size' is a GLOBAL variable
+Expected error 'Variable is a GLOBAL variable'
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+COUNT(@@GLOBAL.Host_Cache_Size)
+1
+1 Expected
+SELECT Host_Cache_Size = @@SESSION.Host_Cache_Size;
+ERROR 42S22: Unknown column 'Host_Cache_Size' in 'field list'
+Expected error 'Unknown column Host_Cache_Size in field list'
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;

mysql-test/t/host_cache_size_functionality.test

+###############################################################################
+#                                                                             #
+# Variable Name: Host_Cache_Size                                              #
+# Scope: Global                                                               #
+# Access Type: Dynamic                                                        #
+# Data Type: numeric                                                          #
+#                                                                             #
+#                                                                             #
+# Creation Date: 2012-08-31                                                   #
+# Author : Tanjot Singh Uppal                                                 #
+#                                                                             #
+#                                                                             #
+# Description:Test Cases of Dynamic System Variable Host_Cache_Size           #
+#             that checks the behavior of this variable in the following ways #
+#              * Value Check                                                  #
+#              * Scope Check                                                  #
+#              * Functionality Check                                          #
+#              * Accessability Check                                          #
+#                                                                             #               
+# This test does not perform the crash recovery on this variable              # 
+# For crash recovery test on default change please run the ibtest             #
+###############################################################################
+
+-- source include/have_innodb.inc
+-- source include/not_embedded.inc
+-- source include/have_innodb_16k.inc
+--disable_warnings
+echo '#________________________VAR_06_Host_Cache_Size__________________#'
+echo '##'
+--echo '#---------------------WL6372_VAR_6_01----------------------#'
+####################################################################
+#   Checking default value                                         #
+####################################################################
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+--echo 1 Expected
+
+#set @Default_host_cache_size=(select if(if(@@global.max_connections<500,128+@@global.max_connections,128+@@global.max_connections+floor((@@global.max_connections-500)/20))>2000,2000,if(@@global.max_connections<500,128+@@global.max_connections,128+@@global.max_connections+floor((@@global.max_connections-500)/20))));
+set @Default_host_cache_size=128;
+
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+--echo 1 Expected
+
+
+--echo '#---------------------WL6372_VAR_6_02----------------------#'
+#################################################################################
+# Checking the Default value post starting the server with other value          #
+#################################################################################
+--echo # Restart server with Host_Cache_Size 1
+
+let $restart_file= $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
+--exec echo "wait" > $restart_file
+--shutdown_server 10
+--source include/wait_until_disconnected.inc
+-- exec echo "restart:--host_cache_size=1  " > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+-- enable_reconnect
+-- source include/wait_until_connected_again.inc
+
+--disable_warnings
+
+SELECT @@GLOBAL.Host_Cache_Size;
+--echo 1 Expected
+
+#set @Default_host_cache_size=(select if(if(@@global.max_connections<500,128+@@global.max_connections,128+@@global.max_connections+floor((@@global.max_connections-500)/20))>2000,2000,if(@@global.max_connections<500,128+@@global.max_connections,128+@@global.max_connections+floor((@@global.max_connections-500)/20))));
+set @Default_host_cache_size=128;
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+--echo 1 Expected
+
+
+--echo '#---------------------WL6372_VAR_6_03----------------------#'
+####################################################################
+#   Checking Value can be set - Dynamic                            #
+####################################################################
+--error ER_GLOBAL_VARIABLE 
+SET @@local.Host_Cache_Size=1;
+--echo Expected error 'Global variable'
+
+--error ER_GLOBAL_VARIABLE 
+SET @@session.Host_Cache_Size=1;
+--echo Expected error 'Global variable'
+
+SET @@GLOBAL.Host_Cache_Size=1;
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;
+
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+--echo 1 Expected
+
+select @@global.Host_Cache_Size=@Default_host_cache_size;
+--echo 1 Expected
+
+--echo '#---------------------WL6372_VAR_6_04----------------------#'
+#################################################################
+# Check if the value in GLOBAL Table matches value in variable  #
+#################################################################
+SELECT @@GLOBAL.Host_Cache_Size = VARIABLE_VALUE
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
+WHERE VARIABLE_NAME='Host_Cache_Size';
+--echo 1 Expected
+
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+--echo 1 Expected
+
+SELECT COUNT(VARIABLE_VALUE)
+FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
+WHERE VARIABLE_NAME='Host_Cache_Size';
+--echo 1 Expected
+
+--echo '#---------------------WL6372_VAR_6_05----------------------#'
+################################################################################
+#  Checking Variable Scope                                                     #
+################################################################################
+SELECT @@Host_Cache_Size = @@GLOBAL.Host_Cache_Size;
+--echo 1 Expected
+
+--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT COUNT(@@local.Host_Cache_Size);
+--echo Expected error 'Variable is a GLOBAL variable'
+
+--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
+SELECT COUNT(@@SESSION.Host_Cache_Size);
+--echo Expected error 'Variable is a GLOBAL variable'
+
+SELECT COUNT(@@GLOBAL.Host_Cache_Size);
+--echo 1 Expected
+
+--Error ER_BAD_FIELD_ERROR
+SELECT Host_Cache_Size = @@SESSION.Host_Cache_Size;
+--echo Expected error 'Unknown column Host_Cache_Size in field list'
+
+#The below check has been commented out as the IP fetch is different in a P2P connection than BroadBand connection
+#--echo '#---------------------WL6372_VAR_6_06----------------------#'
+###############################################################################
+# Checking the Host   cahce functionality                                     #
+###############################################################################
+
+#SET @@GLOBAL.Host_Cache_Size=2;
+#--disable_warnings
+
+#--perl
+#my $ip=`ifconfig | egrep "inet addr|inet" | sed -e 's/^.*inet addr://' -e 's/^.*inet//'| sed 's/ .*\$//'|egrep -i "broadcast|bcast"|head -1|awk '{print $1}'`;
+#open (LOGFH, ">" . $ENV{'MYSQL_TMP_DIR'} . "/bind_ip");
+#print LOGFH "let \$bind_ip = $ip;\n";
+#close LOGFH;
+#EOF
+
+#--source $MYSQL_TMP_DIR/bind_ip
+#--remove_file $MYSQL_TMP_DIR/bind_ip
+
+#let $restart_file= $MYSQLTEST_VARDIR/tmp/mysqld.1.expect;
+#--exec echo "wait" > $restart_file
+#--shutdown_server 10
+#--source include/wait_until_disconnected.inc
+#-- exec echo "restart:--bind-address=$bind_ip  " > $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+#-- enable_reconnect
+#-- source include/wait_until_connected_again.inc
+
+#connection default;
+#--disable_warnings
+
+#create user binduser;
+#grant all on *.* to binduser;
+
+#select count(IP) from performance_schema.host_cache;
+#--echo 0 Expected
+
+#connect (con1,$bind_ip,binduser,,);
+#select count(IP) from performance_schema.host_cache;
+#--echo 1 Expected
+
+#disconnect con1;
+#connection default;
+
+#--disable_warnings
+
+# The below check is hashed until the BUG14689561# is fixed
+#
+#flush hosts;
+
+#connect (con2,$bind_ip,binduser,,);
+#select count(IP) from performance_schema.host_cache;
+#--echo 1 Expected
+
+#disconnect con2;
+
+SET @@GLOBAL.Host_Cache_Size=DEFAULT;