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mysql-test/include/wait_condition_sp.inc

+# include/wait_condition.inc
+#
+# SUMMARY
+#
+#    Waits until the passed statement returns true, or the operation
+#    times out.
+#
+# USAGE
+#
+#    let $wait_condition=
+#      SELECT c = 3 FROM t;
+#    --source include/wait_condition.inc
+#
+#   OR
+#
+#    let $wait_timeout= 60; # Override default 30 seconds with 60.
+#    let $wait_condition=
+#      SELECT c = 3 FROM t;
+#    --source include/wait_condition.inc
+#    --echo Executed the test condition $wait_condition_reps times
+#
+# EXAMPLE
+#    events_bugs.test, events_time_zone.test
+#
+
+--disable_query_log
+
+let $wait_counter= 300;
+if ($wait_timeout)
+{
+  let $wait_counter= `SELECT $wait_timeout * 10`;
+}
+# Reset $wait_timeout so that its value won't be used on subsequent
+# calls, and default will be used instead.
+let $wait_timeout= 0;
+
+# Keep track of how many times the wait condition is tested
+# This is used by some tests (e.g., main.status)
+let $wait_condition_reps= 0;
+while ($wait_counter)
+{
+    let $success= `$wait_condition`;
+    inc $wait_condition_reps;
+    if ($success)
+    {
+        let $wait_counter= 0;
+    }
+    if (!$success)
+    {
+        real_sleep 0.1;
+        dec $wait_counter;
+    }
+}
+if (!$success)
+{
+  echo Timeout in wait_condition.inc for $wait_condition;
+  show master status;
+  show slave status;
+}
+
+--enable_query_log
+

mysql-test/r/rpl_init_slave_func.result

@@ -4,44 +4,43 @@ reset master;
 reset slave;
 drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
 start slave;
-'#--------------------FN_DYNVARS_037_01-------------------------#'
-SET @@global.init_slave = "SET @a = 10";
-'connect (con1,localhost,root,,)'
-'connection con1'
-SELECT @@global.init_slave;
-@@global.init_slave
-SET @a = 10
-'connection master'
-'#--------------------FN_DYNVARS_037_02-------------------------#'
-'check if value in slave opt file is executed'
-'connection slave'
-show variables like 'init_slave';
-Variable_name	Value
-init_slave	set global max_connections=500
-show variables like 'max_connections';
-Variable_name	Value
-max_connections	500
-reset master;
-'check if value in slave opt file doesnt apply to master'
-'connection master'
-show variables like 'init_slave';
-Variable_name	Value
-init_slave	SET @a = 10
-show variables like 'max_connections';
-Variable_name	Value
-max_connections	151
-'connection slave'
-'try creating a temporary variable in init_slave'
+connection slave
+SET @start_max_connections= @@global.max_connections;
+SET @start_init_slave= @@global.init_slave;
+SET @@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1';
+DROP TABLE IF EXISTS t1;
+CREATE TEMPORARY TABLE t1 AS SELECT @@global.init_slave AS my_column;
+DESCRIBE t1;
+Field	Type	Null	Key	Default	Extra
+my_column	longtext	NO		NULL	
+DROP TABLE t1;
+SELECT @@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1';
+@@global.init_slave = 'SET @@global.max_connections = @@global.max_connections + 1'
+1
+Expect 1
+SELECT @@global.max_connections= @start_max_connections;
+@@global.max_connections= @start_max_connections
+1
+Expect 1
+STOP SLAVE;
+RESET MASTER;
+RESET SLAVE;
+START SLAVE;
+SELECT @@global.max_connections = @start_max_connections + 1;
+@@global.max_connections = @start_max_connections + 1
+1
+Expect 1
 SET @@global.init_slave = "SET @a=5";
-stop slave;
-reset slave;
-drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
-start slave;
+STOP SLAVE;
+RESET MASTER;
+RESET SLAVE;
+START SLAVE;
 SHOW VARIABLES LIKE 'init_slave';
 Variable_name	Value
 init_slave	SET @a=5
 SELECT @a;
 @a
 NULL
-'Bug#35365 SET statement in init_slave not execute if slave is restarted'
-set global max_connections= default;
+Expect NULL
+SET @@global.max_connections= @start_max_connections;
+SET @@global.init_slave= @start_init_slave;

mysql-test/t/rpl_init_slave_func-slave.opt

---init-slave="set global max_connections=500"

mysql-test/t/rpl_init_slave_func.test

@@ -10,86 +10,92 @@
 #                                                                             #
 # Creation Date: 2008-03-08                                                   #
 # Author:  Rizwan                                                             #
+# Modified: HHunger 2008-09-29 Fixed the bug by inserting the usual wait and  #
+#                              SQL-Satements to control master and slave,     #
+#                              deleted the sleep and made improvements like:  #
+#                              - Replaced the opt file by dynamic variables,  #
+#                              - Made the tests independant of the initial    #
+#                                values of the global variables,              #
+#                              - Reduced the test to the needed test case to  #
+#                                save run time,                               #
+#                              - Beautification.                              #
 #                                                                             #
 # Description: Test Cases of Dynamic System Variable init_slave               #
 #              that checks the behavior of this variable                      #
 #                                                                             #
-# Reference: http://dev.mysql.com/doc/refman/5.1/en/                          #
-#  server-system-variables.html                                               #
+# Reference:                                                                  #
+# http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html         #
 #                                                                             #
 ###############################################################################
 
 source include/master-slave.inc;
-
---echo '#--------------------FN_DYNVARS_037_01-------------------------#'
-##################################################################
-# Check if setting init_slave is changed in every new connection # 
-##################################################################
-
-SET @@global.init_slave = "SET @a = 10";
-
---echo 'connect (con1,localhost,root,,)'
-connect (con1,localhost,root,,);
---echo 'connection con1'
-connection con1;
-SELECT @@global.init_slave;
-disconnect con1;
---echo 'connection master'
-connection master;
-
---echo '#--------------------FN_DYNVARS_037_02-------------------------#'
-####################################################
-# Begin the functionality Testing of init_slave    #
-####################################################
-
-#====================================================
---echo 'check if value in slave opt file is executed'
-#====================================================
-save_master_pos;
---echo 'connection slave'
+--echo connection slave
 connection slave;
-sleep 1;
-show variables like 'init_slave';
-show variables like 'max_connections';
-sync_with_master;
-reset master;
+#
+# save the current values
 
-#===============================================================
---echo 'check if value in slave opt file doesnt apply to master'
-#===============================================================
+SET @start_max_connections= @@global.max_connections;
+SET @start_init_slave= @@global.init_slave;
 
---echo 'connection master'
-connection master;
-show variables like 'init_slave';
-show variables like 'max_connections';
-save_master_pos;
---echo 'connection slave'
-connection slave;
-sync_with_master;
-
-#=======================================================
---echo 'try creating a temporary variable in init_slave'
-#=======================================================
-
-SET @@global.init_slave = "SET @a=5";
+# setting of a global value with an effect on the next start of the slave server
+# check that @@global.init_slave could be set
+let $my_init_slave=
+   'SET @@global.max_connections = @@global.max_connections + 1';
+eval SET @@global.init_slave = $my_init_slave;
 
-stop slave;
---wait_for_slave_to_stop
-reset slave;
-# Clean up old test tables
+# show the data type of the variable
 --disable_warnings
-drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+DROP TABLE IF EXISTS t1;
+CREATE TEMPORARY TABLE t1 AS SELECT @@global.init_slave AS my_column;
 --enable_warnings
-start slave;
-
+DESCRIBE t1;
+DROP TABLE t1;
+#
+# check that the new setting of @@global.init_slave becomes immediately visible
+eval SELECT @@global.init_slave = $my_init_slave;
+--echo Expect 1
+# wait for the slave threads have set the global variable.
+let $wait_timeout= 90;
+let $wait_condition= SELECT @@global.max_connections = @start_max_connections;
+--source include/wait_condition_sp.inc
+# check that the action in init_slave does not happen immediately
+SELECT @@global.max_connections= @start_max_connections;
+--echo Expect 1
+#
+# reset of the server
+STOP SLAVE;
+--wait_for_slave_to_stop
+RESET MASTER;
+RESET SLAVE;
+START SLAVE;
+source include/wait_for_slave_to_start.inc;
+#
+# wait for the slave threads have set the global variable.
+let $wait_timeout= 90;
+let $wait_condition= SELECT @@global.max_connections = @start_max_connections + 1;
+--source include/wait_condition_sp.inc
+# check that the action in init_slave was executed and had the intended effect
+SELECT @@global.max_connections = @start_max_connections + 1;
+--echo Expect 1
+#
+# Setting a variable(which is local to a session) and must not be visible
+SET @@global.init_slave = "SET @a=5";
+#
+STOP SLAVE;
+--wait_for_slave_to_stop
+RESET MASTER;
+RESET SLAVE;
+START SLAVE;
+source include/wait_for_slave_to_start.inc;
+#
 SHOW VARIABLES LIKE 'init_slave';
+# expect NULL
 SELECT @a;
-
---echo 'Bug#35365 SET statement in init_slave not execute if slave is restarted'
-
-# Restore value
-set global max_connections= default;
-
+--echo Expect NULL
+#
+# Clean up
+SET @@global.max_connections= @start_max_connections;
+SET @@global.init_slave= @start_init_slave;
 ##################################################
 # End of functionality Testing for init_slave    #
 ##################################################