This one will not be pushed, I am committing to be able to pull in Monty's changes

added server id, mostly working
added --skip-slave-start, working
added --replicate-rewrite-db - just in the cmd line parses, currently noop

sql/log_event.cc

@@ -22,11 +22,11 @@
 #include  "mysql_priv.h"
 #endif /* MYSQL_CLIENT */
 
-#define LOG_EVENT_HEADER_LEN 9
+#define LOG_EVENT_HEADER_LEN 13
 #define QUERY_HEADER_LEN     (sizeof(uint32) + sizeof(uint32) + sizeof(uchar))
 #define LOAD_HEADER_LEN      (sizeof(uint32) + sizeof(uint32) + \
   + sizeof(uint32) + 2 + sizeof(uint32))
-#define EVENT_LEN_OFFSET     5
+#define EVENT_LEN_OFFSET     9
 #define EVENT_TYPE_OFFSET    4
 #define MAX_EVENT_LEN        4*1024*1024 
 #define QUERY_EVENT_OVERHEAD  LOG_EVENT_HEADER_LEN+QUERY_HEADER_LEN
@@ -71,6 +71,8 @@ int Log_event::write_header(FILE* file)
   int4store(pos, when); // timestamp
   pos += 4;
   *pos++ = get_type_code(); // event type code
+  int4store(pos, server_id);
+  pos += 4;
   int4store(pos, get_data_size() + LOG_EVENT_HEADER_LEN);
   pos += 4;
   return (my_fwrite(file, (byte*) buf, (uint) (pos - buf),
@@ -106,16 +108,19 @@ int Log_event::read_log_event(FILE* file, String* packet)
 Log_event* Log_event::read_log_event(FILE* file)
 {
   time_t timestamp;
-  char buf[5];
+  uint32 server_id;
+  
+  char buf[LOG_EVENT_HEADER_LEN-4];
   if (my_fread(file, (byte *) buf, sizeof(buf), MY_NABP))
     return NULL;
   timestamp = uint4korr(buf);
+  server_id = uint4korr(buf + 5);
   
   switch(buf[EVENT_TYPE_OFFSET])
   {
   case QUERY_EVENT:
   {
-    Query_log_event* q = new Query_log_event(file, timestamp);
+    Query_log_event* q = new Query_log_event(file, timestamp, server_id);
     if (!q->query)
     {
       delete q;
@@ -127,7 +132,7 @@ Log_event* Log_event::read_log_event(FILE* file)
   
   case LOAD_EVENT:
   {
-    Load_log_event* l = new Load_log_event(file, timestamp);
+    Load_log_event* l = new Load_log_event(file, timestamp, server_id);
     if (!l->table_name)
     {
       delete l;
@@ -140,7 +145,7 @@ Log_event* Log_event::read_log_event(FILE* file)
 
   case ROTATE_EVENT:
   {
-    Rotate_log_event* r = new Rotate_log_event(file, timestamp);
+    Rotate_log_event* r = new Rotate_log_event(file, timestamp, server_id);
     if (!r->new_log_ident)
     {
       delete r;
@@ -152,7 +157,7 @@ Log_event* Log_event::read_log_event(FILE* file)
 
   case INTVAR_EVENT:
   {
-    Intvar_log_event* e = new Intvar_log_event(file, timestamp);
+    Intvar_log_event* e = new Intvar_log_event(file, timestamp, server_id);
     if (e->type == INVALID_INT_EVENT)
     {
       delete e;
@@ -162,8 +167,8 @@ Log_event* Log_event::read_log_event(FILE* file)
     return e;
   }
   
-  case START_EVENT: return new Start_log_event(file, timestamp);
-  case STOP_EVENT: return new Stop_log_event(file, timestamp);
+  case START_EVENT: return new Start_log_event(file, timestamp, server_id);
+  case STOP_EVENT: return new Stop_log_event(file, timestamp, server_id);
   default: return NULL;
   }
 
@@ -221,12 +226,23 @@ Log_event* Log_event::read_log_event(const char* buf, int max_buf)
   return NULL;
 }
 
-void Log_event::print_timestamp(FILE* file)
+void Log_event::print_header(FILE* file)
+{
+  fputc('#', file);
+  print_timestamp(file);
+  fprintf(file, " server id  %d ", server_id); 
+}
+
+void Log_event::print_timestamp(FILE* file, time_t* ts = 0)
 {
     struct tm tm_tmp;
-    localtime_r(&when,&tm_tmp);
+    if(!ts)
+      {
+        ts = &when;
+      }
+    localtime_r(ts,&tm_tmp);
 
-    fprintf(file,"#%02d%02d%02d %2d:%02d:%02d",
+    fprintf(file,"%02d%02d%02d %2d:%02d:%02d",
 	    tm_tmp.tm_year % 100,
 	    tm_tmp.tm_mon+1,
 	    tm_tmp.tm_mday,
@@ -241,8 +257,11 @@ void Start_log_event::print(FILE* file, bool short_form)
   if (short_form)
     return;
 
-  print_timestamp(file);
-  fprintf(file, "\tStart\n");
+  print_header(file);
+  fprintf(file, "\tStart: binlog v %d, server v %s created ", binlog_version,
+	  server_version);
+  print_timestamp(file, (time_t*)&created);
+  fputc('\n', file);
   fflush(file);
 }
 
@@ -251,7 +270,7 @@ void Stop_log_event::print(FILE* file, bool short_form)
   if (short_form)
     return;
 
-  print_timestamp(file);
+  print_header(file);
   fprintf(file, "\tStop\n");
   fflush(file);
 }
@@ -261,7 +280,7 @@ void Rotate_log_event::print(FILE* file, bool short_form)
   if (short_form)
     return;
 
-  print_timestamp(file);
+  print_header(file);
   fprintf(file, "\tRotate to ");
   if (new_log_ident)
     my_fwrite(file, (byte*) new_log_ident, (uint)ident_len, 
@@ -270,8 +289,9 @@ void Rotate_log_event::print(FILE* file, bool short_form)
   fflush(file);
 }
 
-Rotate_log_event::Rotate_log_event(FILE* file, time_t when_arg):
-  Log_event(when_arg),new_log_ident(NULL),alloced(0)
+Rotate_log_event::Rotate_log_event(FILE* file, time_t when_arg,
+				   uint32 server_id):
+  Log_event(when_arg, 0, 0, server_id),new_log_ident(NULL),alloced(0)
 {
   char *tmp_ident;
   char buf[4];
@@ -298,6 +318,14 @@ Rotate_log_event::Rotate_log_event(FILE* file, time_t when_arg):
   alloced = 1;
 }
 
+Start_log_event::Start_log_event(const char* buf) :Log_event(buf)
+{
+  buf += EVENT_LEN_OFFSET + 4; // skip even length
+  binlog_version = uint2korr(buf);
+  memcpy(server_version, buf + 2, sizeof(server_version));
+  created = uint4korr(buf + 2 + sizeof(server_version));
+}
+
 Rotate_log_event::Rotate_log_event(const char* buf, int max_buf):
   Log_event(buf),new_log_ident(NULL),alloced(0)
 {
@@ -322,8 +350,9 @@ int Rotate_log_event::write_data(FILE* file)
   return 0;
 }
 
-Query_log_event::Query_log_event(FILE* file, time_t when_arg):
-  Log_event(when_arg),data_buf(0),query(NULL),db(NULL)
+Query_log_event::Query_log_event(FILE* file, time_t when_arg,
+				 uint32 server_id):
+  Log_event(when_arg,0,0,server_id),data_buf(0),query(NULL),db(NULL)
 {
   char buf[QUERY_HEADER_LEN + 4];
   ulong data_len;
@@ -382,7 +411,7 @@ void Query_log_event::print(FILE* file, bool short_form)
 {
   if (!short_form)
   {
-    print_timestamp(file);
+    print_header(file);
     fprintf(file, "\tQuery\tthread_id=%lu\texec_time=%lu\n",
 	    (ulong) thread_id, (ulong) exec_time);
   }
@@ -414,8 +443,9 @@ int Query_log_event::write_data(FILE* file)
   return 0;
 }
 
-Intvar_log_event:: Intvar_log_event(FILE* file, time_t when_arg)
-  :Log_event(when_arg), type(INVALID_INT_EVENT)
+Intvar_log_event:: Intvar_log_event(FILE* file, time_t when_arg,
+				    uint32 server_id)
+  :Log_event(when_arg,0,0,server_id), type(INVALID_INT_EVENT)
 {
   my_fseek(file, 4L, MY_SEEK_CUR, MYF(MY_WME)); // skip the event length
   char buf[9];
@@ -444,7 +474,7 @@ void Intvar_log_event::print(FILE* file, bool short_form)
   char llbuff[22];
   if(!short_form)
   {
-    print_timestamp(file);
+    print_header(file);
     fprintf(file, "\tIntvar\n");
   }
 
@@ -493,8 +523,9 @@ int Load_log_event::write_data(FILE* file __attribute__((unused)))
   return 0;
 }
 
-Load_log_event::Load_log_event(FILE* file, time_t when):
-  Log_event(when),data_buf(0),num_fields(0),fields(0),field_lens(0),field_block_len(0),
+Load_log_event::Load_log_event(FILE* file, time_t when, uint32 server_id):
+  Log_event(when,0,0,server_id),data_buf(0),num_fields(0),
+  fields(0),field_lens(0),field_block_len(0),
   table_name(0),db(0),fname(0)
 							
 {
@@ -539,7 +570,8 @@ Load_log_event::Load_log_event(FILE* file, time_t when):
 }
 
 Load_log_event::Load_log_event(const char* buf, int max_buf):
-  Log_event(when),data_buf(0),num_fields(0),fields(0),field_lens(0),field_block_len(0),
+  Log_event(when,0,0,server_id),data_buf(0),num_fields(0),fields(0),
+  field_lens(0),field_block_len(0),
   table_name(0),db(0),fname(0)
 							     
 {
@@ -594,7 +626,7 @@ void Load_log_event::print(FILE* file, bool short_form)
 {
   if (!short_form)
   {
-    print_timestamp(file);
+    print_header(file);
     fprintf(file, "\tQuery\tthread_id=%d\texec_time=%ld\n",
 	    thread_id, exec_time);
   }

sql/log_event.h

@@ -28,7 +28,7 @@
 #define LOG_READ_MEM    -5
 
 #define LOG_EVENT_OFFSET 4
-
+#define BINLOG_VERSION    1
 
 enum Log_event_type { START_EVENT = 1, QUERY_EVENT =2,
 		      STOP_EVENT=3, ROTATE_EVENT = 4, INTVAR_EVENT=5,
@@ -40,25 +40,32 @@ enum Int_event_type { INVALID_INT_EVENT = 0, LAST_INSERT_ID_EVENT = 1, INSERT_ID
 class String;
 #endif
 
+extern uint32 server_id;
+
 class Log_event
 {
 public:
   time_t when;
   ulong exec_time;
-  int valid_exec_time; // if false, the exec time setting is bogus and needs
+  int valid_exec_time; // if false, the exec time setting is bogus 
+  uint32 server_id;
 
   int write(FILE* file);
   int write_header(FILE* file);
   virtual int write_data(FILE* file __attribute__((unused))) { return 0; }
   virtual Log_event_type get_type_code() = 0;
   Log_event(time_t when_arg, ulong exec_time_arg = 0,
-	    int valid_exec_time_arg = 0): when(when_arg),
-    exec_time(exec_time_arg), valid_exec_time(valid_exec_time_arg) {}
+	    int valid_exec_time_arg = 0, uint32 server_id = 0): when(when_arg),
+    exec_time(exec_time_arg), valid_exec_time(valid_exec_time_arg)
+  {
+    if(!server_id) this->server_id = ::server_id;
+    else this->server_id = server_id;
+  }
 
-  Log_event(const char* buf): valid_exec_time(1)
+  Log_event(const char* buf): valid_exec_time(0)
   {
    when = uint4korr(buf);
-   exec_time = uint4korr(buf + 5);
+   server_id = uint4korr(buf + 5);
   }
 
   virtual ~Log_event() {}
@@ -66,7 +73,8 @@ public:
   virtual int get_data_size() { return 0;}
   virtual void print(FILE* file, bool short_form = 0) = 0;
 
-  void print_timestamp(FILE* file);
+  void print_timestamp(FILE* file, time_t *ts = 0);
+  void print_header(FILE* file);
 
   static Log_event* read_log_event(FILE* file);
   static Log_event* read_log_event(const char* buf, int max_buf);
@@ -93,7 +101,7 @@ public:
 #if !defined(MYSQL_CLIENT)
   THD* thd;
   Query_log_event(THD* thd_arg, const char* query_arg):
-    Log_event(thd_arg->start_time), data_buf(0),
+    Log_event(thd_arg->start_time,0,0,thd->server_id), data_buf(0),
     query(query_arg),  db(thd_arg->db), q_len(thd_arg->query_length),
     thread_id(thd_arg->thread_id), thd(thd_arg)
   {
@@ -105,7 +113,7 @@ public:
   }
 #endif
 
-  Query_log_event(FILE* file, time_t when);
+  Query_log_event(FILE* file, time_t when, uint32 server_id);
   Query_log_event(const char* buf, int max_buf);
   ~Query_log_event()
   {
@@ -244,7 +252,7 @@ public:
   void set_fields(List<Item> &fields);
 #endif
 
-  Load_log_event(FILE* file, time_t when);
+  Load_log_event(FILE* file, time_t when, uint32 server_id);
   Load_log_event(const char* buf, int max_buf);
   ~Load_log_event()
   {
@@ -269,21 +277,52 @@ public:
   void print(FILE* file, bool short_form = 0);
 };
 
+extern char server_version[50];
 
 class Start_log_event: public Log_event
 {
 public:
-  Start_log_event() :Log_event(time(NULL))
-  {}
-  Start_log_event(FILE* file, time_t when_arg) :Log_event(when_arg)
+  uint16 binlog_version;
+  char server_version[50];
+  uint32 created;
+  
+  Start_log_event() :Log_event(time(NULL)),binlog_version(BINLOG_VERSION)
   {
-    my_fseek(file, 4L, MY_SEEK_CUR, MYF(MY_WME)); // skip the event length
+    created = when;
+    memcpy(server_version, ::server_version, sizeof(server_version));
   }
-  Start_log_event(const char* buf) :Log_event(buf)
+  Start_log_event(FILE* file, time_t when_arg, uint32 server_id) :
+    Log_event(when_arg, 0, 0, server_id)
   {
+    char buf[sizeof(server_version) + sizeof(binlog_version) +
+	    sizeof(created)];
+    my_fseek(file, 4L, MY_SEEK_CUR, MYF(MY_WME)); // skip the event length
+    if (my_fread(file, (byte*) buf, sizeof(buf), MYF(MY_NABP | MY_WME)))
+      return;				
+    binlog_version = uint2korr(buf);
+    memcpy(server_version, buf + 2, sizeof(server_version));
+    created = uint4korr(buf + 2 + sizeof(server_version));
   }
+  Start_log_event(const char* buf);
+  
   ~Start_log_event() {}
   Log_event_type get_type_code() { return START_EVENT;}
+  int write_data(FILE* file)
+  {
+    if(my_fwrite(file, (byte*) &binlog_version, sizeof(binlog_version),
+		 MYF(MY_NABP | MY_WME)) ||
+       my_fwrite(file, (byte*) server_version, sizeof(server_version),
+		 MYF(MY_NABP | MY_WME)) ||
+       my_fwrite(file, (byte*) &created, sizeof(created),
+		 MYF(MY_NABP | MY_WME)))
+      return -1;
+    return 0;
+  }
+  int get_data_size()
+  {
+    return sizeof(binlog_version) + sizeof(server_version) +
+      sizeof(created);
+  }
   void print(FILE* file, bool short_form = 0);
 };
 
@@ -295,7 +334,7 @@ public:
   Intvar_log_event(uchar type_arg, ulonglong val_arg)
     :Log_event(time(NULL)),val(val_arg),type(type_arg)
   {}
-  Intvar_log_event(FILE* file, time_t when);
+  Intvar_log_event(FILE* file, time_t when, uint32 server_id);
   Intvar_log_event(const char* buf);
   ~Intvar_log_event() {}
   Log_event_type get_type_code() { return INTVAR_EVENT;}
@@ -311,7 +350,8 @@ class Stop_log_event: public Log_event
 public:
   Stop_log_event() :Log_event(time(NULL))
   {}
-  Stop_log_event(FILE* file, time_t when_arg): Log_event(when_arg)
+  Stop_log_event(FILE* file, time_t when_arg, uint32 server_id):
+    Log_event(when_arg,0,0,server_id)
   {
     my_fseek(file, 4L, MY_SEEK_CUR, MYF(MY_WME)); // skip the event length
   }
@@ -337,7 +377,7 @@ public:
     alloced(0)
   {}
   
-  Rotate_log_event(FILE* file, time_t when) ;
+  Rotate_log_event(FILE* file, time_t when, uint32 server_id) ;
   Rotate_log_event(const char* buf, int max_buf);
   ~Rotate_log_event()
   {

sql/mysql_priv.h

@@ -437,6 +437,7 @@ void sql_perror(const char *message);
 void sql_print_error(const char *format,...)
 	        __attribute__ ((format (printf, 1, 2)));
 
+extern uint32 server_id;
 extern char mysql_data_home[2],server_version[50],max_sort_char,
             mysql_real_data_home[];
 extern my_string mysql_unix_port,mysql_tmpdir;

sql/mysqlbinlog.cc

@@ -29,6 +29,8 @@
 
 #define CLIENT_CAPABILITIES	(CLIENT_LONG_PASSWORD | CLIENT_LONG_FLAG | CLIENT_LOCAL_FILES)
 
+char server_version[50];
+uint32 server_id = 0;
 
 // needed by net_serv.c
 ulong bytes_sent = 0L, bytes_received = 0L;

sql/mysqld.cc

@@ -142,6 +142,7 @@ static uint handler_count;
 static bool opt_console=0;
 #endif
 
+static bool opt_skip_slave_start = 0; // if set, slave is not autostarted
 static ulong opt_specialflag=SPECIAL_ENGLISH;
 static my_socket unix_sock= INVALID_SOCKET,ip_sock= INVALID_SOCKET;
 static ulong back_log,connect_timeout,concurrency;
@@ -180,6 +181,7 @@ I_List<i_string> replicate_do_db, replicate_ignore_db;
 // allow the user to tell us which db to replicate and which to ignore
 I_List<i_string> binlog_do_db, binlog_ignore_db;
 
+uint32 server_id = 0; // server id for replication
 uint mysql_port;
 uint test_flags, select_errors=0, dropping_tables=0,ha_open_options=0;
 uint volatile thread_count=0, thread_running=0, kill_cached_threads=0,
@@ -1480,6 +1482,8 @@ int main(int argc, char **argv)
     open_log(&mysql_update_log, hostname, opt_update_logname, "",
 	     LOG_NEW);
   if (opt_bin_log)
+  {
+    if(server_id)
       {
 	if (!opt_bin_logname)
 	  {
@@ -1492,6 +1496,10 @@ int main(int argc, char **argv)
 	open_log(&mysql_bin_log, hostname, opt_bin_logname, "-bin",
 		 LOG_BIN);
       }
+    else
+      sql_print_error("Server id is not set - binary logging disabled");
+  }
+  
   if (opt_slow_log)
     open_log(&mysql_slow_log, hostname, opt_slow_logname, "-slow.log",
 	     LOG_NORMAL);
@@ -1594,11 +1602,16 @@ int main(int argc, char **argv)
 
   // slave thread
   if(master_host)
+  {
+    if(server_id)
       {
 	pthread_t hThread;
-    if(pthread_create(&hThread, &connection_attrib, handle_slave, 0))
+	if(!opt_skip_slave_start &&
+	   pthread_create(&hThread, &connection_attrib, handle_slave, 0))
 	  sql_print_error("Warning: Can't create thread to handle slave");
-
+      }
+    else
+      sql_print_error("Server id is not set, slave thread will not be started");
   }
 
   printf(ER(ER_READY),my_progname,server_version,"");
@@ -2201,6 +2214,7 @@ enum options {
                OPT_LOG_SLAVE_UPDATES,    OPT_BINLOG_DO_DB, 
                OPT_BINLOG_IGNORE_DB,     OPT_WANT_CORE,
 	       OPT_SKIP_CONCURRENT_INSERT, OPT_MEMLOCK, OPT_MYISAM_RECOVER,
+	       OPT_REPLICATE_REWRITE_DB, OPT_SERVER_ID, OPT_SKIP_SLAVE_START
 };
 
 static struct option long_options[] = {
@@ -2265,8 +2279,11 @@ static struct option long_options[] = {
   {"port",                  required_argument, 0, 'P'},
   {"replicate-do-db",       required_argument, 0, (int) OPT_REPLICATE_DO_DB},
   {"replicate-ignore-db",   required_argument, 0, (int) OPT_REPLICATE_IGNORE_DB},
+  {"replicate-rewrite-db",   required_argument, 0,
+     (int) OPT_REPLICATE_REWRITE_DB},
   {"safe-mode",             no_argument,       0, (int) OPT_SAFE},
   {"socket",                required_argument, 0, (int) OPT_SOCKET},
+  {"server-id",          required_argument, 0, (int)OPT_SERVER_ID},
   {"set-variable",          required_argument, 0, 'O'},
 #ifdef HAVE_BERKELEY_DB
   {"skip-bdb",              no_argument,       0, (int) OPT_BDB_SKIP},
@@ -2279,6 +2296,7 @@ static struct option long_options[] = {
   {"skip-name-resolve",     no_argument,       0, (int) OPT_SKIP_RESOLVE},
   {"skip-new",              no_argument,       0, (int) OPT_SKIP_NEW},
   {"skip-show-database",    no_argument,       0, (int) OPT_SKIP_SHOW_DB},
+  {"skip-slave-start",    no_argument,       0, (int) OPT_SKIP_SLAVE_START},
   {"skip-networking",       no_argument,       0, (int) OPT_SKIP_NETWORKING},
   {"skip-thread-priority",  no_argument,       0, (int) OPT_SKIP_PRIOR},
   {"sql-bin-update-same",   no_argument,       0, (int) OPT_SQL_BIN_UPDATE_SAME},
@@ -2427,6 +2445,7 @@ struct show_var_st init_vars[]= {
   {"port",                    (char*) &mysql_port,                  SHOW_INT},
   {"protocol_version",        (char*) &protocol_version,            SHOW_INT},
   {"record_buffer",           (char*) &my_default_record_cache_size,SHOW_LONG},
+  {"server_id",           (char*) &server_id, SHOW_LONG},
   {"skip_locking",            (char*) &my_disable_locking,          SHOW_MY_BOOL},
   {"skip_networking",         (char*) &opt_disable_networking,      SHOW_BOOL},
   {"skip_show_database",      (char*) &opt_skip_show_db,            SHOW_BOOL},
@@ -2850,6 +2869,9 @@ static void get_options(int argc,char **argv)
       opt_slow_log=1;
       opt_slow_logname=optarg;
       break;
+    case (int)OPT_SKIP_SLAVE_START:
+      opt_skip_slave_start = 1;
+      break;
     case (int) OPT_SKIP_NEW:
       opt_specialflag|= SPECIAL_NO_NEW_FUNC;
       default_table_type=DB_TYPE_ISAM;
@@ -2971,6 +2993,9 @@ static void get_options(int argc,char **argv)
       default_table_type= (enum db_type) type;
       break;
     }
+    case OPT_SERVER_ID:
+      server_id = atoi(optarg);
+      break;
     case OPT_DELAY_KEY_WRITE:
       ha_open_options|=HA_OPEN_DELAY_KEY_WRITE;
       myisam_delay_key_write=1;

sql/slave.cc

@@ -797,11 +797,17 @@ pthread_handler_decl(handle_slave,arg __attribute__((unused)))
   THD *thd;; // needs to be first for thread_stack
   MYSQL *mysql = NULL ;
 
+  if(!server_id)
+    {
+     sql_print_error("Server id not set, will not start slave");
+     pthread_exit(1);
+    }
+  
   pthread_mutex_lock(&LOCK_slave);
   if(slave_running)
     {
       pthread_mutex_unlock(&LOCK_slave);
-      return 0;  // safety just in case
+      pthread_exit(1);  // safety just in case
     }
   slave_running = 1;
   abort_slave = 0;
@@ -938,7 +944,7 @@ static void safe_reconnect(THD* thd, MYSQL* mysql, MASTER_INFO* mi)
   while(!slave_killed(thd) && mc_mysql_reconnect(mysql))
   {
     sql_print_error(
-		    "Slave thread: error connecting to slave:%s, retry in %d sec",
+		    "Slave thread: error connecting to master:%s, retry in %d sec",
 		    mc_mysql_error(mysql), mi->connect_retry);
     safe_sleep(thd, mi->connect_retry);
   }

sql/sql_class.cc

@@ -83,6 +83,7 @@ THD::THD()
     user_time=bootstrap=in_lock_tables=global_read_lock=0;
   query_length=col_access=0;
   query_error=0;
+  server_id = ::server_id;
   server_status=SERVER_STATUS_AUTOCOMMIT;
   next_insert_id=last_insert_id=0;
   open_tables=temporary_tables=0;

sql/sql_class.h

@@ -243,6 +243,7 @@ public:
   ULL	  *ull;
   struct st_my_thread_var *mysys_var;
   enum enum_server_command command;
+  uint32 server_id;
   const char *where;
   char* last_nx_table; // last non-existent table, we need this for replication
   char* last_nx_db; // database of the last nx table