--- /usr/bin/mysqld_multi.orig	2018-03-09 18:37:19.025626239 +0000
+++ /usr/bin/mysqld_multi	2018-03-09 17:55:40.000000000 +0000
@@ -20,9 +20,10 @@
 use Getopt::Long;
 use POSIX qw(strftime getcwd);
 use File::Path qw(mkpath);
+use File::Basename;

 $|=1;
-$VER="2.16";
+$VER="2.16-dev";

 my @defaults_options;   #  Leading --no-defaults, --defaults-file, etc.

@@ -323,12 +324,39 @@
   {
     @options = defaults_for_group($groups[$i]);

+    $system_user = 'mysql'; # set default system user to 'mysql'
+    for ($j = 0, $tmp= ""; defined($options[$j]); $j++)
+    {
+      if ("--user=" eq substr($options[$j], 0, 7)) {
+        $system_user = $options[$j];
+        $system_user =~ s/\-\-user\=//;
+      }
+    }
+
     $basedir_found= 0; # The default
     $mysqld_found= 1; # The default
     $mysqld_found= 0 if (!length($mysqld));
     $com= "$mysqld";
     for ($j = 0, $tmp= ""; defined($options[$j]); $j++)
     {
+      if ("--socket=" eq substr($options[$j], 0, 9)) {
+        $socket = $options[$j];
+        $socket =~ s/\-\-socket\=//;
+        $socket_dir = dirname($socket);
+        if (! -d $socket_dir) {
+          eval { mkpath($socket_dir, { user => $system_user }) };
+        }
+      }
+      if ("--pid-file=" eq substr($options[$j], 0, 11)) {
+        $pidfile = $options[$j];
+        $pidfile =~ s/\-\-pid-file\=//;
+        $pidfile_dir = dirname($pidfile);
+        if (! -d $pidfile_dir) {
+          eval { mkpath($pidfile_dir, { user => $system_user }) };
+        }
+      }
+
+
       if ("--datadir=" eq substr($options[$j], 0, 10)) {
         $datadir = $options[$j];
         $datadir =~ s/\-\-datadir\=//;
@@ -341,7 +369,7 @@
           if (-w $datadir) {
             print "\n\nInstalling new database in $datadir\n\n";
             $install_cmd="/usr/local/Percona-Server-5.7.19-17-Linux.x86_64.ssl101/bin/mysql_install_db ";
-            $install_cmd.="--user=mysql ";
+            $install_cmd.="--user=$system_user ";
             $install_cmd.="--datadir=$datadir";
             system($install_cmd);
           } else {