Implement WL#2789 "Instance Manager: test using mysql-test-run testing framework"

mysql-test/Makefile.am:
  Make installation procedure aware of the Instance Manager tests.
mysql-test/lib/mtr_cases.pl:
  Make collect_one_test_case() aware of the Instance Manager tests.
mysql-test/lib/mtr_process.pl:
  Minor changes:
    - open log files for append, not for overwrite. Append mode is very
      useful for debugging of several tests;
    - extract the code for killing processes into a separate function:
      mtr_kill_processes(). The function is used to stop IM-related processes.
mysql-test/mysql-test-run.pl:
  Added support for the Instance Manager tests.

mysql-test/Makefile.am

@@ -50,6 +50,7 @@ dist-hook:
 		$(distdir)/std_data $(distdir)/lib
 	-$(INSTALL_DATA) $(srcdir)/t/*.def $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.test $(distdir)/t
+	$(INSTALL_DATA) $(srcdir)/t/*.imtest $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.sql $(distdir)/t
 	-$(INSTALL_DATA) $(srcdir)/t/*.disabled $(distdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.opt $(srcdir)/t/*.sh $(srcdir)/t/*.slave-mi $(distdir)/t
@@ -73,6 +74,7 @@ install-data-local:
 	$(INSTALL_DATA) $(srcdir)/README $(DESTDIR)$(testdir)
 	-$(INSTALL_DATA) $(srcdir)/t/*.def $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.test $(DESTDIR)$(testdir)/t
+	$(INSTALL_DATA) $(srcdir)/t/*.imtest $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.sql $(DESTDIR)$(testdir)/t
 	-$(INSTALL_DATA) $(srcdir)/t/*.disabled $(DESTDIR)$(testdir)/t
 	$(INSTALL_DATA) $(srcdir)/t/*.opt $(DESTDIR)$(testdir)/t

mysql-test/lib/mtr_cases.pl

@@ -8,7 +8,7 @@ use File::Basename;
 use strict;
 
 sub collect_test_cases ($);
-sub collect_one_test_case ($$$$$$);
+sub collect_one_test_case ($$$$$$$);
 
 ##############################################################################
 #
@@ -40,13 +40,84 @@ sub collect_test_cases ($) {
   if ( @::opt_cases )
   {
     foreach my $tname ( @::opt_cases ) { # Run in specified order, no sort
-      $tname= basename($tname, ".test");
-      my $elem= "$tname.test";
+      my $elem= undef;
+      my $component_id= undef;
+      
+      # Get rid of directory part (path). Leave the extension since it is used
+      # to understand type of the test.
+
+      $tname = basename($tname);
+
+      # Check if the extenstion has been specified.
+
+      if ( mtr_match_extension($tname, "test") )
+      {
+        $elem= $tname;
+        $tname=~ s/\.test$//;
+        $component_id= 'mysqld';
+      }
+      elsif ( mtr_match_extension($tname, "imtest") )
+      {
+        $elem= $tname;
+        $tname =~ s/\.imtest$//;
+        $component_id= 'im';
+
+        if ( $::glob_use_embedded_server )
+        {
+          mtr_report(
+            "Instance Manager's tests are not available in embedded mode." .
+            "Test case '$tname' is skipped.");
+          next;
+        }
+
+        unless ( $::exe_im )
+        {
+          mtr_report(
+            "Instance Manager executable is unavailable. " .
+            "Test case '$tname' is skipped.");
+          next;
+        }
+      }
+
+      # If target component is known, check that the specified test case
+      # exists.
+      # 
+      # Otherwise, try to guess the target component.
+
+      if ( defined $component_id )
+      {
         if ( ! -f "$testdir/$elem")
         {
           mtr_error("Test case $tname ($testdir/$elem) is not found");
         }
-      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,{});
+      }
+      else
+      {
+        my $mysqld_test_exists = -f "$testdir/$tname.test";
+        my $im_test_exists = -f "$testdir/$tname.imtest";
+
+        if ( $mysqld_test_exists && $im_test_exists )
+        {
+          mtr_error("Ambiguos test case name ($tname)");
+        }
+        elsif ( ! $mysqld_test_exists && !$im_test_exists )
+        {
+          mtr_error("Test case $tname is not found");
+        }
+        elsif ( $mysqld_test_exists )
+        {
+          $elem= "$tname.test";
+          $component_id= 'mysqld';
+        }
+        elsif ( $im_test_exists )
+        {
+          $elem= "$tname.imtest";
+          $component_id= 'im';
+        }
+      }
+      
+      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,{},
+        $component_id);
     }
     closedir TESTDIR;
   }
@@ -70,11 +141,26 @@ sub collect_test_cases ($) {
     }
 
     foreach my $elem ( sort readdir(TESTDIR) ) {
-      my $tname= mtr_match_extension($elem,"test");
-      next if ! defined $tname;
+      my $component_id= undef;
+      my $tname= undef;
+
+      if ($tname= mtr_match_extension($elem, 'test'))
+      {
+        $component_id = 'mysqld';
+      }
+      elsif ($tname= mtr_match_extension($elem, 'imtest'))
+      {
+        $component_id = 'im';
+      }
+      else
+      {
+        next;
+      }
+      
       next if $::opt_do_test and ! defined mtr_match_prefix($elem,$::opt_do_test);
 
-      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,\%disabled);
+      collect_one_test_case($testdir,$resdir,$tname,$elem,$cases,\%disabled,
+        $component_id);
     }
     closedir TESTDIR;
   }
@@ -112,13 +198,14 @@ sub collect_test_cases ($) {
 ##############################################################################
 
 
-sub collect_one_test_case($$$$$$) {
+sub collect_one_test_case($$$$$$$) {
   my $testdir= shift;
   my $resdir=  shift;
   my $tname=   shift;
   my $elem=    shift;
   my $cases=   shift;
   my $disabled=shift;
+  my $component_id= shift;
 
   my $path= "$testdir/$elem";
 
@@ -138,6 +225,7 @@ sub collect_one_test_case($$$$$$) {
   my $tinfo= {};
   $tinfo->{'name'}= $tname;
   $tinfo->{'result_file'}= "$resdir/$tname.result";
+  $tinfo->{'component_id'} = $component_id;
   push(@$cases, $tinfo);
 
   if ( $::opt_skip_test and defined mtr_match_prefix($tname,$::opt_skip_test) )
@@ -188,6 +276,7 @@ sub collect_one_test_case($$$$$$) {
   my $master_sh=       "$testdir/$tname-master.sh";
   my $slave_sh=        "$testdir/$tname-slave.sh";
   my $disabled_file=   "$testdir/$tname.disabled";
+  my $im_opt_file=     "$testdir/$tname-im.opt";
 
   $tinfo->{'master_opt'}= $::glob_win32 ? ["--default-time-zone=+3:00"] : [];
   $tinfo->{'slave_opt'}=  $::glob_win32 ? ["--default-time-zone=+3:00"] : [];
@@ -290,6 +379,15 @@ sub collect_one_test_case($$$$$$) {
     }
   }
 
+  if ( -f $im_opt_file )
+  {
+    $tinfo->{'im_opts'} = mtr_get_opts_from_file($im_opt_file);
+  }
+  else
+  {
+    $tinfo->{'im_opts'} = [];
+  }
+
   # FIXME why this late?
   if ( $disabled->{$tname} )
   {

mysql-test/lib/mtr_process.pl

@@ -12,16 +12,17 @@ use strict;
 #use POSIX ":sys_wait_h";
 use POSIX 'WNOHANG';
 
-sub mtr_run ($$$$$$);
-sub mtr_spawn ($$$$$$);
+sub mtr_run ($$$$$$;$);
+sub mtr_spawn ($$$$$$;$);
 sub mtr_stop_mysqld_servers ($);
 sub mtr_kill_leftovers ();
 sub mtr_record_dead_children ();
 sub mtr_exit ($);
 sub sleep_until_file_created ($$$);
+sub mtr_kill_processes ($);
 
 # static in C
-sub spawn_impl ($$$$$$$);
+sub spawn_impl ($$$$$$$$);
 
 ##############################################################################
 #
@@ -32,37 +33,43 @@ sub spawn_impl ($$$$$$$);
 # This function try to mimic the C version used in "netware/mysql_test_run.c"
 # FIXME learn it to handle append mode as well, a "new" flag or a "append"
 
-sub mtr_run ($$$$$$) {
+sub mtr_run ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'run',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'run',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
-sub mtr_run_test ($$$$$$) {
+sub mtr_run_test ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'test',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'test',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
-sub mtr_spawn ($$$$$$) {
+sub mtr_spawn ($$$$$$;$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $input=      shift;
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;
+  my $spawn_opts= shift;
 
-  return spawn_impl($path,$arg_list_t,'spawn',$input,$output,$error,$pid_file);
+  return spawn_impl($path,$arg_list_t,'spawn',$input,$output,$error,$pid_file,
+    $spawn_opts);
 }
 
 
@@ -72,7 +79,7 @@ sub mtr_spawn ($$$$$$) {
 #
 ##############################################################################
 
-sub spawn_impl ($$$$$$$) {
+sub spawn_impl ($$$$$$$$) {
   my $path=       shift;
   my $arg_list_t= shift;
   my $mode=       shift;
@@ -80,6 +87,7 @@ sub spawn_impl ($$$$$$$) {
   my $output=     shift;
   my $error=      shift;
   my $pid_file=   shift;                 # FIXME
+  my $spawn_opts= shift;
 
   if ( $::opt_script_debug )
   {
@@ -89,6 +97,18 @@ sub spawn_impl ($$$$$$$) {
     print STDERR "#### ", "STDOUT $output\n" if $output;
     print STDERR "#### ", "STDERR $error\n" if $error;
     print STDERR "#### ", "$mode : $path ", join(" ",@$arg_list_t), "\n";
+    print STDERR "#### ", "spawn options:\n";
+    if ($spawn_opts)
+    {
+      foreach my $key (sort keys %{$spawn_opts})
+      {
+        print STDERR "#### ", "  - $key: $spawn_opts->{$key}\n";
+      }
+    }
+    else
+    {
+      print STDERR "#### ", "  none\n";
+    }
     print STDERR "#### ", "-" x 78, "\n";
   }
 
@@ -135,9 +155,16 @@ sub spawn_impl ($$$$$$$) {
 #       $ENV{'COMSPEC'}= "$::glob_cygwin_shell -c";
       }
 
+      my $log_file_open_mode = '>';
+
+      if ($spawn_opts and $spawn_opts->{'append_log_file'})
+      {
+        $log_file_open_mode = '>>';
+      }
+
       if ( $output )
       {
-        if ( ! open(STDOUT,">",$output) )
+        if ( ! open(STDOUT,$log_file_open_mode,$output) )
         {
           mtr_error("can't redirect STDOUT to \"$output\": $!");
         }
@@ -154,7 +181,7 @@ sub spawn_impl ($$$$$$$) {
         }
         else
         {
-          if ( ! open(STDERR,">",$error) )
+          if ( ! open(STDERR,$log_file_open_mode,$error) )
           {
             mtr_error("can't redirect STDERR to \"$output\": $!");
           }
@@ -534,16 +561,7 @@ sub mtr_stop_mysqld_servers ($) {
   start_reap_all();                     # Avoid zombies
 
  SIGNAL:
-  foreach my $sig (15,9)
-  {
-    my $retries= 20;                    # FIXME 20 seconds, this is silly!
-    kill($sig, keys %mysqld_pids);
-    while ( $retries-- and  kill(0, keys %mysqld_pids) )
-    {
-      mtr_debug("Sleep 1 second waiting for processes to die");
-      sleep(1)                      # Wait one second
-    }
-  }
+  mtr_kill_processes(\keys (%mysqld_pids));
 
   stop_reap_all();                      # Get into control again
 
@@ -805,7 +823,7 @@ sub sleep_until_file_created ($$$) {
     }
 
     # Check if it died after the fork() was successful 
-    if ( waitpid($pid,&WNOHANG) == $pid )
+    if ( $pid > 0 && waitpid($pid,&WNOHANG) == $pid )
     {
       return 0;
     }
@@ -826,6 +844,21 @@ sub sleep_until_file_created ($$$) {
 }
 
 
+sub mtr_kill_processes ($) {
+  my $pids = shift;
+
+  foreach my $sig (15,9)
+  {
+    my $retries= 20;                    # FIXME 20 seconds, this is silly!
+    kill($sig, @{$pids});
+    while ( $retries-- and  kill(0, @{$pids}) )
+    {
+      mtr_debug("Sleep 1 second waiting for processes to die");
+      sleep(1)                      # Wait one second
+    }
+  }
+}
+
 ##############################################################################
 #
 #  When we exit, we kill off all children

mysql-test/mysql-test-run.pl

@@ -178,6 +178,7 @@ our $exe_mysqlshow;              # Called from test case
 our $exe_mysql_fix_system_tables;
 our $exe_mysqltest;
 our $exe_slave_mysqld;
+our $exe_im;
 
 our $opt_bench= 0;
 our $opt_small_bench= 0;
@@ -216,12 +217,11 @@ our $opt_local_master;
 our $master;                    # Will be struct in C
 our $slave;
 
+our $instance_manager;
+
 our $opt_ndbcluster_port;
 our $opt_ndbconnectstring;
 
-our $opt_no_manager;            # Does nothing now, we never use manager
-our $opt_manager_port;          # Does nothing now, we never use manager
-
 our $opt_old_master;
 
 our $opt_record;
@@ -309,6 +309,8 @@ sub mysqld_arguments ($$$$$);
 sub stop_masters_slaves ();
 sub stop_masters ();
 sub stop_slaves ();
+sub im_start ($$);
+sub im_stop ($);
 sub run_mysqltest ($);
 sub usage ($);
 
@@ -460,6 +462,9 @@ sub command_line_setup () {
   my $opt_master_myport= 9306;
   my $opt_slave_myport=  9308;
   $opt_ndbcluster_port=  9350;
+  my $im_port=           9310;
+  my $im_mysqld1_port=   9312;
+  my $im_mysqld2_port=   9314;
 
   # Read the command line
   # Note: Keep list, and the order, in sync with usage at end of this file
@@ -470,7 +475,6 @@ sub command_line_setup () {
              'ps-protocol'              => \$opt_ps_protocol,
              'bench'                    => \$opt_bench,
              'small-bench'              => \$opt_small_bench,
-             'no-manager'               => \$opt_no_manager, # Currently not used
 
              # Control what test suites or cases to run
              'force'                    => \$opt_force,
@@ -485,7 +489,9 @@ sub command_line_setup () {
              'master_port=i'            => \$opt_master_myport,
              'slave_port=i'             => \$opt_slave_myport,
              'ndbcluster_port=i'        => \$opt_ndbcluster_port,
-             'manager-port=i'           => \$opt_manager_port, # Currently not used
+             'im-port=i'                => \$im_port, # Instance Manager port.
+             'im-mysqld1-port=i'        => \$im_mysqld1_port, # Port of mysqld, controlled by IM
+             'im-mysqld2-port=i'        => \$im_mysqld2_port, # Port of mysqld, controlled by IM
 
              # Test case authoring
              'record'                   => \$opt_record,
@@ -768,6 +774,37 @@ sub command_line_setup () {
   $slave->[2]->{'path_myport'}=    $opt_slave_myport + 2;
   $slave->[2]->{'start_timeout'}=  300;
 
+  $instance_manager->{'path_err'}=        "$opt_vardir/log/im.err";
+  $instance_manager->{'path_log'}=        "$opt_vardir/log/im.log";
+  $instance_manager->{'path_pid'}=        "$opt_vardir/run/im.pid";
+  $instance_manager->{'path_sock'}=       "$opt_tmpdir/im.sock";
+  $instance_manager->{'port'}=            $im_port;
+  $instance_manager->{'start_timeout'}=   $master->[0]->{'start_timeout'};
+  $instance_manager->{'admin_login'}=     'im_admin';
+  $instance_manager->{'admin_password'}=  'im_admin_secret';
+  $instance_manager->{'admin_sha1'}=      '*598D51AD2DFF7792045D6DF3DDF9AA1AF737B295';
+  $instance_manager->{'password_file'}=   "$opt_vardir/im.passwd";
+  $instance_manager->{'defaults_file'}=   "$opt_vardir/im.cnf";
+  
+  $instance_manager->{'instances'}->[0]->{'server_id'}= 1;
+  $instance_manager->{'instances'}->[0]->{'port'}= $im_mysqld1_port;
+  $instance_manager->{'instances'}->[0]->{'path_datadir'}=
+    "$opt_vardir/im_mysqld_1.data";
+  $instance_manager->{'instances'}->[0]->{'path_sock'}=
+    "$opt_vardir/mysqld_1.sock";
+  $instance_manager->{'instances'}->[0]->{'path_pid'}=
+    "$opt_vardir/mysqld_1.pid";
+
+  $instance_manager->{'instances'}->[1]->{'server_id'}= 2;
+  $instance_manager->{'instances'}->[1]->{'port'}= $im_mysqld2_port;
+  $instance_manager->{'instances'}->[1]->{'path_datadir'}=
+    "$opt_vardir/im_mysqld_2.data";
+  $instance_manager->{'instances'}->[1]->{'path_sock'}=
+    "$opt_vardir/mysqld_2.sock";
+  $instance_manager->{'instances'}->[1]->{'path_pid'}=
+    "$opt_vardir/mysqld_2.pid";
+  $instance_manager->{'instances'}->[1]->{'nonguarded'}= 1;
+
   if ( $opt_extern )
   {
     $glob_use_running_server=  1;
@@ -803,6 +840,9 @@ sub executable_setup () {
       $exe_mysqld=         mtr_exe_exists ("$glob_basedir/sql/mysqld");
       $path_language=      mtr_path_exists("$glob_basedir/sql/share/english/");
       $path_charsetsdir=   mtr_path_exists("$glob_basedir/sql/share/charsets");
+
+      $exe_im= mtr_exe_exists(
+        "$glob_basedir/server-tools/instance-manager/mysqlmanager");
     }
 
     if ( $glob_use_embedded_server )
@@ -850,6 +890,8 @@ sub executable_setup () {
     $exe_mysqld=         mtr_exe_exists ("$glob_basedir/libexec/mysqld",
                                          "$glob_basedir/bin/mysqld");
 
+    $exe_im= mtr_exe_exists("$glob_basedir/libexec/mysqlmanager",
+                            "$glob_basedir/bin/mysqlmanager");
     if ( $glob_use_embedded_server )
     {
       $exe_mysqltest= mtr_exe_exists("$path_client_bindir/mysqltest_embedded");
@@ -923,6 +965,11 @@ sub environment_setup () {
 # $ENV{'MYSQL_TCP_PORT'}=     '@MYSQL_TCP_PORT@'; # FIXME
   $ENV{'MYSQL_TCP_PORT'}=     3306;
 
+  $ENV{'IM_MYSQLD1_SOCK'}=    $instance_manager->{instances}->[0]->{path_sock};
+  $ENV{'IM_MYSQLD1_PORT'}=    $instance_manager->{instances}->[0]->{port};
+  $ENV{'IM_MYSQLD2_SOCK'}=    $instance_manager->{instances}->[1]->{path_sock};
+  $ENV{'IM_MYSQLD2_PORT'}=    $instance_manager->{instances}->[1]->{port};
+
   if ( $glob_cygwin_perl )
   {
     foreach my $key ('MYSQL_TEST_WINDIR','MASTER_MYSOCK')
@@ -1006,25 +1053,24 @@ sub kill_and_cleanup () {
   # FIXME do we really need to create these all, or are they
   # created for us when tables are created?
 
-  rmtree("$master->[0]->{'path_myddir'}");
-  mkpath("$master->[0]->{'path_myddir'}/mysql");
-  mkpath("$master->[0]->{'path_myddir'}/test");
-
-  rmtree("$master->[1]->{'path_myddir'}");
-  mkpath("$master->[1]->{'path_myddir'}/mysql");
-  mkpath("$master->[1]->{'path_myddir'}/test");
+  my @data_dir_lst = (
+    $master->[0]->{'path_myddir'},
+    $master->[1]->{'path_myddir'},
+    $slave->[0]->{'path_myddir'},
+    $slave->[1]->{'path_myddir'},
+    $slave->[2]->{'path_myddir'});
   
-  rmtree("$slave->[0]->{'path_myddir'}");
-  mkpath("$slave->[0]->{'path_myddir'}/mysql");
-  mkpath("$slave->[0]->{'path_myddir'}/test");
-
-  rmtree("$slave->[1]->{'path_myddir'}");
-  mkpath("$slave->[1]->{'path_myddir'}/mysql");
-  mkpath("$slave->[1]->{'path_myddir'}/test");
+  foreach my $instance (@{$instance_manager->{'instances'}})
+  {
+    push (@data_dir_lst, $instance->{'path_datadir'});
+  }
 
-  rmtree("$slave->[2]->{'path_myddir'}");
-  mkpath("$slave->[2]->{'path_myddir'}/mysql");
-  mkpath("$slave->[2]->{'path_myddir'}/test");
+  foreach my $data_dir (@data_dir_lst)
+  {
+    rmtree("$data_dir");
+    mkpath("$data_dir/mysql");
+    mkpath("$data_dir/test");
+  }
 
   # To make some old test cases work, we create a soft
   # link from the old "var" location to the new one
@@ -1262,6 +1308,11 @@ sub mysql_install_db () {
   install_db('slave',  $slave->[1]->{'path_myddir'});
   install_db('slave',  $slave->[2]->{'path_myddir'});
 
+  if ( defined $exe_im)
+  {
+    im_prepare_env($instance_manager);
+  }
+
   if ( ndbcluster_install() )
   {
     # failed to install, disable usage but flag that its no ok
@@ -1336,6 +1387,101 @@ sub install_db ($$) {
 }
 
 
+sub im_prepare_env($) {
+  my $instance_manager = shift;
+
+  im_create_passwd_file($instance_manager);
+  im_prepare_data_dir($instance_manager);
+}
+
+
+sub im_create_passwd_file($) {
+  my $instance_manager = shift;
+
+  my $pwd_file_path = $instance_manager->{'password_file'};
+  
+  mtr_report("Creating IM password file ($pwd_file_path)");
+  
+  open(OUT, ">", $pwd_file_path)
+    or mtr_error("Can't write to $pwd_file_path: $!");
+  
+  print OUT $instance_manager->{'admin_login'}, ":",
+        $instance_manager->{'admin_sha1'}, "\n";
+  
+  close(OUT);
+}
+
+
+sub im_create_defaults_file($) {
+  my $instance_manager = shift;
+
+  my $defaults_file = $instance_manager->{'defaults_file'};
+
+  open(OUT, ">", $defaults_file)
+    or mtr_error("Can't write to $defaults_file: $!");
+  
+  print OUT <<EOF
+[mysql]
+
+[manager]
+pid-file            = $instance_manager->{path_pid}
+socket              = $instance_manager->{path_sock}
+port                = $instance_manager->{port}
+password-file       = $instance_manager->{password_file}
+default-mysqld-path = $exe_mysqld
+
+EOF
+;
+
+  foreach my $instance (@{$instance_manager->{'instances'}})
+  {
+    my $server_id = $instance->{'server_id'};
+
+    print OUT <<EOF
+[mysqld$server_id]
+socket              = $instance->{path_sock}
+pid-file            = $instance->{path_pid}
+port                = $instance->{port}
+datadir             = $instance->{path_datadir}
+log                 = $instance->{path_datadir}/mysqld$server_id.log
+log-error           = $instance->{path_datadir}/mysqld$server_id.err.log
+log-slow-queries    = $instance->{path_datadir}/mysqld$server_id.slow.log
+language            = $path_language
+character-sets-dir  = $path_charsetsdir
+basedir             = $path_my_basedir
+server_id           =$server_id
+skip-stack-trace
+skip-innodb
+skip-bdb
+skip-ndbcluster
+EOF
+;
+
+    if ( exists $instance->{nonguarded} and
+      defined $instance->{nonguarded} )
+    {
+      print OUT "nonguarded\n";
+    }
+
+    print OUT "\n";
+  }
+
+  close(OUT);
+}
+
+
+sub im_prepare_data_dir($) {
+  my $instance_manager = shift;
+
+  foreach my $instance (@{$instance_manager->{'instances'}})
+  {
+    install_db(
+      'im_mysqld_' . $instance->{'server_id'},
+      $instance->{'path_datadir'});
+  }
+}
+
+
 ##############################################################################
 #
 #  Run a single test case
@@ -1437,7 +1583,7 @@ sub run_testcase ($) {
     # FIXME split up start and check that started so that can do
     #       starts in parallel, masters and slaves at the same time.
 
-    if ( ! $opt_local_master )
+    if ( $tinfo->{'component_id'} eq 'mysqld' and ! $opt_local_master )
     {
       if ( $master->[0]->{'ndbcluster'} )
       {
@@ -1476,6 +1622,17 @@ sub run_testcase ($) {
         $master->[0]->{'running_master_is_special'}= 1;
       }
     }
+    elsif ( $tinfo->{'component_id'} eq 'im')
+    {
+      # We have to create defaults file every time, in order to ensure that it
+      # will be the same for each test. The problem is that test can change the
+      # file (by SET/UNSET commands), so w/o recreating the file, execution of
+      # one test can affect the other.
+
+      im_create_defaults_file($instance_manager);
+
+      im_start($instance_manager, $tinfo->{im_opts});
+    }
 
     # ----------------------------------------------------------------------
     # Start slaves - if needed
@@ -1558,6 +1715,15 @@ sub run_testcase ($) {
       report_failure_and_restart($tinfo);
     }
   }
+
+  # ----------------------------------------------------------------------
+  # Stop Instance Manager if we are processing an IM-test case.
+  # ----------------------------------------------------------------------
+
+  if ( ! $glob_use_running_server and $tinfo->{'component_id'} eq 'im' )
+  {
+    im_stop($instance_manager);
+  }
 }
 
 
@@ -1988,6 +2154,13 @@ sub mysqld_start ($$$$) {
 sub stop_masters_slaves () {
 
   print  "Ending Tests\n";
+
+  if (defined $instance_manager->{'pid'})
+  {
+    print  "Shutting-down Instance Manager\n";
+    im_stop($instance_manager);
+  }
+  
   print  "Shutting-down MySQL daemon\n\n";
   stop_masters();
   print "Master(s) shutdown finished\n";
@@ -2046,6 +2219,97 @@ sub stop_slaves () {
   mtr_stop_mysqld_servers(\@args);
 }
 
+##############################################################################
+#
+#  Instance Manager management routines.
+#
+##############################################################################
+
+sub im_start($$) {
+  my $instance_manager = shift;
+  my $opts = shift;
+
+  if ( ! defined $exe_im)
+  {
+    return;
+  }
+
+  my $args;
+  mtr_init_args(\$args);
+  mtr_add_arg($args, "--defaults-file=" . $instance_manager->{'defaults_file'});
+
+  foreach my $opt (@{$opts})
+  {
+    mtr_add_arg($args, $opt);
+  }
+
+  $instance_manager->{'pid'} = 
+    mtr_spawn(
+      $exe_im,                          # path to the executable
+      $args,                            # cmd-line args
+      '',                               # stdin
+      $instance_manager->{'path_log'},  # stdout
+      $instance_manager->{'path_err'},  # stderr
+      '',                               # pid file path (not used)
+      { append_log_file => 1 }          # append log files
+      );
+
+  if ( ! defined $instance_manager->{'pid'} )
+  {
+    mtr_report('Could not start Instance Manager');
+    return;
+  }
+  
+  # Instance Manager can be run in daemon mode. In this case, it creates
+  # several processes and the parent process, created by mtr_spawn(), exits just
+  # after start. So, we have to obtain Instance Manager PID from the PID file.
+
+  sleep_until_file_created(
+    $instance_manager->{'path_pid'},
+    $instance_manager->{'start_timeout'},
+    -1); # real PID is still unknown
+
+  $instance_manager->{'pid'} =
+    mtr_get_pid_from_file($instance_manager->{'path_pid'});
+}
+
+sub im_stop($) {
+  my $instance_manager = shift;
+
+  if (! defined $instance_manager->{'pid'})
+  {
+    return;
+  }
+
+  # Inspired from mtr_stop_mysqld_servers().
+
+  start_reap_all();
+
+  # Create list of pids. We should stop Instance Manager and all started
+  # mysqld-instances. Some of them may be nonguarded, so IM will not stop them
+  # on shutdown.
+
+  my @pids = ( $instance_manager->{'pid'} );
+  my $instances = $instance_manager->{'instances'};
+
+  if ( -r $instances->[0]->{'path_pid'} )
+  {
+    push @pids, mtr_get_pid_from_file($instances->[0]->{'path_pid'});
+  }
+
+  if ( -r $instances->[1]->{'path_pid'} )
+  {
+    push @pids, mtr_get_pid_from_file($instances->[1]->{'path_pid'});
+  }
+
+  # Kill processes.
+
+  mtr_kill_processes(\@pids);
+  
+  stop_reap_all();
+
+  $instance_manager->{'pid'} = undef;
+}
 
 sub run_mysqltest ($) {
   my $tinfo=       shift;
@@ -2069,7 +2333,9 @@ sub run_mysqltest ($) {
   }
 
   my $cmdline_mysqlbinlog=
-    "$exe_mysqlbinlog --no-defaults --local-load=$opt_tmpdir --character-sets-dir=$path_charsetsdir";
+    "$exe_mysqlbinlog" .
+      " --no-defaults --local-load=$opt_tmpdir" .
+      " --character-sets-dir=$path_charsetsdir";
 
   if ( $opt_debug )
   {
@@ -2127,15 +2393,26 @@ sub run_mysqltest ($) {
   mtr_init_args(\$args);
 
   mtr_add_arg($args, "--no-defaults");
-  mtr_add_arg($args, "--socket=%s", $master->[0]->{'path_mysock'});
-  mtr_add_arg($args, "--database=test");
-  mtr_add_arg($args, "--user=%s", $opt_user);
-  mtr_add_arg($args, "--password=");
   mtr_add_arg($args, "--silent");
   mtr_add_arg($args, "-v");
   mtr_add_arg($args, "--skip-safemalloc");
   mtr_add_arg($args, "--tmpdir=%s", $opt_tmpdir);
+
+  if ($tinfo->{'component_id'} eq 'im')
+  {
+    mtr_add_arg($args, "--socket=%s", $instance_manager->{'path_sock'});
+    mtr_add_arg($args, "--port=%d", $instance_manager->{'port'});
+    mtr_add_arg($args, "--user=%s", $instance_manager->{'admin_login'});
+    mtr_add_arg($args, "--password=%s", $instance_manager->{'admin_password'});
+  }
+  else # component_id == mysqld
+  {
+    mtr_add_arg($args, "--socket=%s", $master->[0]->{'path_mysock'});
     mtr_add_arg($args, "--port=%d", $master->[0]->{'path_myport'});
+    mtr_add_arg($args, "--database=test");
+    mtr_add_arg($args, "--user=%s", $opt_user);
+    mtr_add_arg($args, "--password=");
+  }
 
   if ( $opt_ps_protocol )
   {
@@ -2224,7 +2501,6 @@ Options to control what engine/variation to run
   ps-protocol           Use the binary protocol between client and server
   bench                 Run the benchmark suite FIXME
   small-bench           FIXME
-  no-manager            Use the istanse manager (currently disabled)
 
 Options to control what test suites or cases to run
 
@@ -2241,7 +2517,6 @@ Options that specify ports
   master_port=PORT      Specify the port number used by the first master
   slave_port=PORT       Specify the port number used by the first slave
   ndbcluster_port=PORT  Specify the port number used by cluster
-  manager-port=PORT     Specify the port number used by manager (currently not used)
 
 Options for test case authoring