Bug #40129 no-threads fails on pushbuild in 6.0-rpl, ps_stm_threadpool

      
The test reacted on the way how mtr orders arguments for the server
that are gathered from different source. It appeared that the opt-file
options were parsed before those that supplied to mtr via its command
line. In effect, the opt-file preferences got overriden by the command
line and some tests, like no-threads, were caught by surprise: a test
expects an option value that had been "hardcoded" into its opt-file
but gets another one.
This server options ordering problem exists on in the new rpl trees
mtr.  In option of the author of this patch, the opt-file shall be
considered as having the highest preference weight. The opt-file is
merely a part of the header of a test, namely a part that can not be
technically deployed along the test file.
It's unnatural for the test writer to provide both the opt file value
and a guard that guarantees the value will be set on in the run time.
It's logical to provide either one: the option and its value or the
guard.

Fixed with relocating parse of the opt file to be the last among
sources of the sever's options.

A side effect: fixing a small problem of resetting the suite options
at time the opt file starts parsing.

A side effect: main.log_bin_trust_function_creators_func is disabled to
be re-enabled with the fixes for bug#41003 will be merged from the main trees.


mysql-test/lib/mtr_cases.pm:
  Relocating parse of the opt file to be the last. This ensure the opt file is the last
  provider for the server options so that the opt-file options have the highest preference;
  fixing a separate issue of incorrect resetting the suite options for the server;
mysql-test/t/disabled.def:
  log_bin_trust_function_creators_func is disabled. Todo: to-reable when fixes for bug#41003
  will be merged from the main trees.

mysql-test/lib/mtr_cases.pm

@@ -580,7 +580,6 @@ sub optimize_cases {
 sub process_opts_file {
   my ($tinfo, $opt_file, $opt_name)= @_;
 
-  $tinfo->{$opt_name}= [];
   if ( -f $opt_file )
   {
     my $opts= opts_from_file($opt_file);
@@ -756,17 +755,6 @@ sub collect_one_test_case {
   push(@{$tinfo->{'master_opt'}}, @$suite_opts);
   push(@{$tinfo->{'slave_opt'}}, @$suite_opts);
 
-  # ----------------------------------------------------------------------
-  # Add master opts, extra options only for master
-  # ----------------------------------------------------------------------
-  process_opts_file($tinfo, "$testdir/$tname-master.opt", 'master_opt');
-
-  # ----------------------------------------------------------------------
-  # Add slave opts, list of extra option only for slave
-  # ----------------------------------------------------------------------
-  process_opts_file($tinfo, "$testdir/$tname-slave.opt", 'slave_opt');
-  
-  
   #-----------------------------------------------------------------------
   # Check for test specific config file
   #-----------------------------------------------------------------------
@@ -987,6 +975,16 @@ sub collect_one_test_case {
   push(@{$tinfo->{'master_opt'}}, @::opt_extra_mysqld_opt);
   push(@{$tinfo->{'slave_opt'}}, @::opt_extra_mysqld_opt);
 
+  # ----------------------------------------------------------------------
+  # Add master opts, extra options only for master
+  # ----------------------------------------------------------------------
+  process_opts_file($tinfo, "$testdir/$tname-master.opt", 'master_opt');
+
+  # ----------------------------------------------------------------------
+  # Add slave opts, list of extra option only for slave
+  # ----------------------------------------------------------------------
+  process_opts_file($tinfo, "$testdir/$tname-slave.opt", 'slave_opt');
+
   return $tinfo;
 }
 

mysql-test/t/disabled.def

@@ -24,3 +24,4 @@ sql_low_priority_updates_func         : BUG#37962 2008-07-08 sven *_func tests c
 timestamp_func                        : BUG#37962 2008-07-08 sven *_func tests containing sleeps/race conditions
 log_output_func                       : BUG#37766 2008-07-10 sven main.log_output_func randomly fails in pushbuild
 slow_query_log_func.test              : Bug #37962: *_func tests containing sleeps/race conditions
+log_bin_trust_function_creators_func : Bug#41003 Dec-12-2008 andrei todo:re-enable after merging the bug fixes from the main trees.