Merge bk-internal.mysql.com:/home/bk/mysql-5.1-new

into  neptunus.(none):/home/msvensson/mysql/mysql-5.1

mysql-test/mysql-test-run.pl

@@ -1208,6 +1208,7 @@ sub kill_running_server () {
     mkpath("$opt_vardir/log"); # Needed for mysqladmin log
     mtr_kill_leftovers();
 
+    $using_ndbcluster_master= $opt_with_ndbcluster;
     ndbcluster_stop();
     $master->[0]->{'ndbcluster'}= 1;
     ndbcluster_stop_slave();
@@ -1447,6 +1448,7 @@ sub ndbcluster_start ($) {
   }
   if ( $using_ndbcluster_master )
   {
+    # Master already started
     return 0;
   }
   # FIXME, we want to _append_ output to file $file_ndb_testrun_log instead of /dev/null
@@ -1956,6 +1958,7 @@ sub run_testcase ($) {
   {
     if ( $tinfo->{'master_restart'} or
          $master->[0]->{'running_master_is_special'} or
+	 # Stop if cluster is started but test cases does not need cluster
 	 ( $tinfo->{'ndb_test'} != $using_ndbcluster_master ) )
     {
       stop_masters();
@@ -2011,6 +2014,10 @@ sub run_testcase ($) {
     {
       if ( $master->[0]->{'ndbcluster'} )
       {
+	# Cluster is not started
+
+	# Call ndbcluster_start to check if test case needs cluster
+	# Start it if not already started
 	$master->[0]->{'ndbcluster'}= ndbcluster_start($tinfo->{'ndb_test'});
 	if ( $master->[0]->{'ndbcluster'} )
 	{
@@ -2033,6 +2040,7 @@ sub run_testcase ($) {
       }
       if ( $using_ndbcluster_master and ! $master->[1]->{'pid'} )
       {
+	# Test needs cluster, start an extra mysqld connected to cluster
         mtr_tofile($master->[1]->{'path_myerr'},"CURRENT_TEST: $tname\n");
         $master->[1]->{'pid'}=
           mysqld_start('master',1,$tinfo->{'master_opt'},[],
@@ -2355,11 +2363,11 @@ sub mysqld_arguments ($$$$$$) {
       mtr_add_arg($args, "%s--skip-innodb", $prefix);
     }
 
-    if ( $opt_skip_ndbcluster )
+    if ( $opt_skip_ndbcluster || !$using_ndbcluster)
     {
       mtr_add_arg($args, "%s--skip-ndbcluster", $prefix);
     }
-    if ( $using_ndbcluster )
+    else
     {
       mtr_add_arg($args, "%s--ndbcluster", $prefix);
       mtr_add_arg($args, "%s--ndb-connectstring=%s", $prefix,
@@ -2549,6 +2557,7 @@ sub mysqld_start ($$$$$) {
   my $slave_master_info= shift;
   my $using_ndbcluster=  shift;
 
+
   my $args;                             # Arg vector
   my $exe;
   my $pid;