Merge work:/home/bk/mysql-4.0

into mysql.sashanet.com:/home/sasha/src/bk/mysql-4.0

BitKeeper/etc/logging_ok

 tonu@hundin.mysql.fi
+sasha@mysql.sashanet.com

include/mysql_com.h

@@ -42,7 +42,8 @@ enum enum_server_command {COM_SLEEP,COM_QUIT,COM_INIT_DB,COM_QUERY,
 			  COM_PROCESS_INFO,COM_CONNECT,COM_PROCESS_KILL,
 			  COM_DEBUG,COM_PING,COM_TIME,COM_DELAYED_INSERT,
 			  COM_CHANGE_USER, COM_BINLOG_DUMP,
-                          COM_TABLE_DUMP, COM_CONNECT_OUT};
+                          COM_TABLE_DUMP, COM_CONNECT_OUT,
+			  COM_REGISTER_SLAVE};
 
 #define NOT_NULL_FLAG	1		/* Field can't be NULL */
 #define PRI_KEY_FLAG	2		/* Field is part of a primary key */

mysql-test/mysql-test-run.sh

@@ -520,6 +520,8 @@ start_slave()
 	    --tmpdir=$MYSQL_TMP_DIR \
             --language=english \
 	    --skip-innodb --skip-slave-start \
+	    --report-host=127.0.0.1 --report-user=root \
+	    --report-port=$SLAVE_MYPORT \
 	     $SMALL_SERVER \
              $EXTRA_SLAVE_OPT $EXTRA_SLAVE_MYSQLD_OPT"
     if [ x$DO_DDD = x1 ]

mysql-test/r/rpl000002.result

@@ -2,6 +2,8 @@ n
 2000
 2001
 2002
+Server_id	Host	User	Password	Port
+2	127.0.0.1	root		9307
 id	created
 1	1970-01-01 06:25:45
 id	created

mysql-test/t/rpl000002.test

@@ -11,6 +11,7 @@ use test;
 sync_with_master;
 select * from t1;
 connection master;
+show slave hosts;
 drop table t1;
 save_master_pos;
 connection slave;

sql/mysql_priv.h

@@ -520,7 +520,7 @@ extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
        LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
        LOCK_grant, LOCK_error_log, LOCK_delayed_insert,
        LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
-       LOCK_binlog_update, LOCK_slave, LOCK_server_id;
+       LOCK_binlog_update, LOCK_slave, LOCK_server_id, LOCK_slave_list;
 extern pthread_cond_t COND_refresh,COND_thread_count, COND_binlog_update,
                       COND_slave_stopped, COND_slave_start;
 extern pthread_attr_t connection_attrib;

sql/mysqld.cc

@@ -20,6 +20,7 @@
 #include <my_dir.h>
 #include "sql_acl.h"
 #include "slave.h"
+#include "sql_repl.h"
 #include "stacktrace.h"
 #ifdef HAVE_BERKELEY_DB
 #include "ha_berkeley.h"
@@ -277,9 +278,12 @@ volatile ulong cached_thread_count=0;
 // replication parameters, if master_host is not NULL, we are a slave
 my_string master_user = (char*) "test", master_password = 0, master_host=0,
   master_info_file = (char*) "master.info";
+my_string report_user = (char*) "test", report_password = 0, report_host=0;
+ 
 const char *localhost=LOCAL_HOST;
 const char *delayed_user="DELAYED";
 uint master_port = MYSQL_PORT, master_connect_retry = 60;
+uint report_port = MYSQL_PORT;
 
 ulong max_tmp_tables,max_heap_table_size;
 ulong bytes_sent = 0L, bytes_received = 0L;
@@ -341,7 +345,7 @@ pthread_mutex_t LOCK_mysql_create_db, LOCK_Acl, LOCK_open, LOCK_thread_count,
 		LOCK_delayed_insert, LOCK_delayed_status, LOCK_delayed_create,
 		LOCK_crypt, LOCK_bytes_sent, LOCK_bytes_received,
                 LOCK_binlog_update, LOCK_slave, LOCK_server_id,
-		LOCK_user_conn;
+		LOCK_user_conn, LOCK_slave_list;
 
 pthread_cond_t COND_refresh,COND_thread_count,COND_binlog_update,
   COND_slave_stopped, COND_slave_start;
@@ -695,6 +699,7 @@ void clean_up(bool print_message)
   bitmap_free(&temp_pool);
   free_max_user_conn();
   end_slave();
+  end_slave_list();
 #ifndef __WIN__
   if (!opt_bootstrap)
     (void) my_delete(pidfile_name,MYF(0));	// This may not always exist
@@ -1685,6 +1690,7 @@ int main(int argc, char **argv)
   randominit(&sql_rand,(ulong) start_time,(ulong) start_time/2);
   reset_floating_point_exceptions();
   init_thr_lock();
+  init_slave_list();
   
   /* Fix varibles that are base 1024*1024 */
   myisam_max_temp_length= (my_off_t) min(((ulonglong) myisam_max_sort_file_size)*1024*1024, (ulonglong) MAX_FILE_SIZE);
@@ -2479,7 +2485,8 @@ enum options {
                OPT_TEMP_POOL, OPT_DO_PSTACK, OPT_TX_ISOLATION,
 	       OPT_GEMINI_FLUSH_LOG, OPT_GEMINI_RECOVER,
                OPT_GEMINI_UNBUFFERED_IO, OPT_SKIP_SAFEMALLOC,
-	       OPT_SKIP_STACK_TRACE
+	       OPT_SKIP_STACK_TRACE, OPT_REPORT_HOST,
+	       OPT_REPORT_USER, OPT_REPORT_PASSWORD, OPT_REPORT_PORT
 };
 
 static struct option long_options[] = {
@@ -2587,6 +2594,12 @@ static struct option long_options[] = {
    (int) OPT_REPLICATE_WILD_IGNORE_TABLE},
   {"replicate-rewrite-db",   required_argument, 0,
      (int) OPT_REPLICATE_REWRITE_DB},
+    // In replication, we may need to tell the other servers how to connect
+    // to us
+  {"report-host",           required_argument, 0, (int) OPT_REPORT_HOST},
+  {"report-user",           required_argument, 0, (int) OPT_REPORT_USER},
+  {"report-password",       required_argument, 0, (int) OPT_REPORT_PASSWORD},
+  {"report-port",           required_argument, 0, (int) OPT_REPORT_PORT},
   {"safe-mode",             no_argument,       0, (int) OPT_SAFE},
   {"safe-show-database",    no_argument,       0, (int) OPT_SAFE_SHOW_DB},
   {"socket",                required_argument, 0, (int) OPT_SOCKET},
@@ -3712,6 +3725,18 @@ static void get_options(int argc,char **argv)
     case OPT_MASTER_PORT:
       master_port= atoi(optarg);
       break;
+    case OPT_REPORT_HOST:
+      report_host=optarg;
+      break;
+    case OPT_REPORT_USER:
+      report_user=optarg;
+      break;
+    case OPT_REPORT_PASSWORD:
+      report_password=optarg;
+      break;
+    case OPT_REPORT_PORT:
+      report_port= atoi(optarg);
+      break;
     case OPT_MASTER_CONNECT_RETRY:
       master_connect_retry= atoi(optarg);
       break;

sql/slave.cc

@@ -569,6 +569,52 @@ error:
   return 1;
 }
 
+int register_slave_on_master(MYSQL* mysql)
+{
+  String packet;
+  uint len;
+  char buf[4];
+
+  if(!report_host)
+    return 0;
+  
+  int4store(buf, server_id);
+  packet.append(buf, 4);
+
+  len = strlen(report_host);
+  packet.append((char)(uchar)len);
+  packet.append(report_host, len);
+
+  len = strlen(report_user);
+  packet.append((char)(uchar)len);
+  packet.append(report_user, len);
+
+  if(report_password)
+  {
+    len = strlen(report_password);
+    packet.append((char)(uchar)len);
+    packet.append(report_password, len);
+  }
+  else
+  {
+    packet.append((char)0);
+  }
+
+  int2store(buf, (uint16)report_port);
+  packet.append(buf, 2);
+
+  if(mc_simple_command(mysql, COM_REGISTER_SLAVE, (char*)packet.ptr(),
+		       packet.length(), 0))
+  {
+    sql_print_error("Error on COM_REGISTER_SLAVE: '%s'",
+		    mc_mysql_error(mysql));
+    return 1;
+  }
+
+  return 0;
+}
+
+
 int show_master_info(THD* thd)
 {
   DBUG_ENTER("show_master_info");
@@ -1246,6 +1292,12 @@ pthread_handler_decl(handle_slave,arg __attribute__((unused)))
     goto err;
   }
 
+  // register ourselves with the master
+  // if fails, this is not fatal - we just print the error message and go
+  // on with life
+  thd->proc_info = "Registering slave on master";
+  register_slave_on_master(mysql);
+  
   while (!slave_killed(thd))
   {
       thd->proc_info = "Requesting binlog dump";

sql/slave.h

@@ -66,6 +66,7 @@ typedef struct st_table_rule_ent
 #define TABLE_RULE_ARR_SIZE   16
 
 int flush_master_info(MASTER_INFO* mi);
+int register_slave_on_master(MYSQL* mysql);
 
 int mysql_table_dump(THD* thd, const char* db,
 		     const char* tbl_name, int fd = -1);
@@ -117,9 +118,9 @@ extern int disconnect_slave_event_count, abort_slave_event_count ;
 #endif
 
 // the master variables are defaults read from my.cnf or command line
-extern uint master_port, master_connect_retry;
+extern uint master_port, master_connect_retry, report_port;
 extern my_string master_user, master_password, master_host,
-  master_info_file;
+  master_info_file, report_user, report_host, report_password;
 
 extern I_List<i_string> replicate_do_db, replicate_ignore_db;
 extern I_List<i_string_pair> replicate_rewrite_db;

sql/sql_lex.h

@@ -54,7 +54,8 @@ enum enum_sql_command {
   SQLCOM_RENAME_TABLE, SQLCOM_BACKUP_TABLE, SQLCOM_RESTORE_TABLE,
   SQLCOM_RESET, SQLCOM_PURGE, SQLCOM_SHOW_BINLOGS,
   SQLCOM_SHOW_OPEN_TABLES, SQLCOM_LOAD_MASTER_DATA,
-  SQLCOM_HA_OPEN, SQLCOM_HA_CLOSE, SQLCOM_HA_READ
+  SQLCOM_HA_OPEN, SQLCOM_HA_CLOSE, SQLCOM_HA_READ,
+  SQLCOM_SHOW_SLAVE_HOSTS
 };
 
 enum lex_states { STATE_START, STATE_CHAR, STATE_IDENT,

sql/sql_parse.cc

@@ -53,7 +53,7 @@ const char *command_name[]={
   "Sleep", "Quit", "Init DB", "Query", "Field List", "Create DB",
   "Drop DB", "Refresh", "Shutdown", "Statistics", "Processlist",
   "Connect","Kill","Debug","Ping","Time","Delayed_insert","Change user",
-  "Binlog Dump","Table Dump",  "Connect Out"
+  "Binlog Dump","Table Dump",  "Connect Out", "Register Slave"
 };
 
 bool volatile abort_slave = 0;
@@ -766,6 +766,14 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
     if (!mysql_change_db(thd,packet))
       mysql_log.write(thd,command,"%s",thd->db);
     break;
+  case COM_REGISTER_SLAVE:
+  {
+    if(register_slave(thd, (uchar*)packet, packet_length))
+      send_error(&thd->net);
+    else
+      send_ok(&thd->net);
+    break;
+  }
   case COM_TABLE_DUMP:
     {
       slow_command = TRUE;
@@ -1163,6 +1171,13 @@ mysql_execute_command(void)
       res = purge_master_logs(thd, lex->to_log);
       break;
     }
+  case SQLCOM_SHOW_SLAVE_HOSTS:
+  {
+    if(check_access(thd, FILE_ACL, any_db))
+      goto error;
+    res = show_slave_hosts(thd);
+    break;
+  }
   case SQLCOM_BACKUP_TABLE:
     {
       if (check_db_used(thd,tables) ||

sql/sql_repl.cc

@@ -25,9 +25,39 @@
 #include <thr_alarm.h>
 #include <my_dir.h>
 
+#define SLAVE_LIST_CHUNK 128
+
 extern const char* any_db;
 extern pthread_handler_decl(handle_slave,arg);
 
+HASH slave_list;
+
+static uint32* slave_list_key(SLAVE_INFO* si, uint* len,
+			   my_bool not_used __attribute__((unused)))
+{
+  *len = 4;
+  return &si->server_id;
+}
+
+static void slave_info_free(void *s)
+{
+  my_free((byte*)s, MYF(MY_WME));
+}
+
+void init_slave_list()
+{
+  hash_init(&slave_list, SLAVE_LIST_CHUNK, 0, 0,
+	    (hash_get_key) slave_list_key, slave_info_free, 0);
+  pthread_mutex_init(&LOCK_slave_list, MY_MUTEX_INIT_FAST);
+}
+
+void end_slave_list()
+{
+  pthread_mutex_lock(&LOCK_slave_list);
+  hash_free(&slave_list);
+  pthread_mutex_unlock(&LOCK_slave_list);
+  pthread_mutex_destroy(&LOCK_slave_list);
+}
 
 static int fake_rotate_event(NET* net, String* packet, char* log_file_name,
 			     const char**errmsg)
@@ -56,6 +86,55 @@ static int fake_rotate_event(NET* net, String* packet, char* log_file_name,
   return 0;
 }
 
+int register_slave(THD* thd, uchar* packet, uint packet_length)
+{
+  uint len;
+  SLAVE_INFO* si, *old_si;
+  int res = 1;
+  uchar* p = packet, *p_end = packet + packet_length;
+
+  if(check_access(thd, FILE_ACL, any_db))
+    return 1;
+  
+  if(!(si = (SLAVE_INFO*)my_malloc(sizeof(SLAVE_INFO), MYF(MY_WME))))
+    goto err;
+
+  si->server_id = uint4korr(p);
+  p += 4;
+  len = (uint)*p++;
+  if(p + len > p_end || len > sizeof(si->host) - 1)
+    goto err;
+  memcpy(si->host, p, len);
+  si->host[len] = 0;
+  p += len;
+  len = *p++;
+  if(p + len > p_end || len > sizeof(si->user) - 1)
+    goto err;
+  memcpy(si->user, p, len);
+  si->user[len] = 0;
+  p += len;
+  len = *p++;
+  if(p + len > p_end || len > sizeof(si->password) - 1)
+    goto err;
+  memcpy(si->password, p, len);
+  si->password[len] = 0;
+  p += len;
+  si->port = uint2korr(p);
+  pthread_mutex_lock(&LOCK_slave_list);
+
+  if((old_si = (SLAVE_INFO*)hash_search(&slave_list,
+					(byte*)&si->server_id, 4)))
+     hash_delete(&slave_list, (byte*)old_si);
+    
+  res = hash_insert(&slave_list, (byte*)si);
+  pthread_mutex_unlock(&LOCK_slave_list);
+  return res;
+err:
+  if(si)
+    my_free((byte*)si, MYF(MY_WME));
+  return res;
+}
+
 
 static int send_file(THD *thd)
 {
@@ -742,6 +821,44 @@ void reset_master()
 
 }
 
+int show_slave_hosts(THD* thd)
+{
+  DBUG_ENTER("show_slave_hosts");
+  List<Item> field_list;
+  field_list.push_back(new Item_empty_string("Server_id", 20));
+  field_list.push_back(new Item_empty_string("Host", 20));
+  field_list.push_back(new Item_empty_string("User",20));
+  field_list.push_back(new Item_empty_string("Password",20));
+  field_list.push_back(new Item_empty_string("Port",20));
+
+  if(send_fields(thd, field_list, 1))
+    DBUG_RETURN(-1);
+  String* packet = &thd->packet;
+  uint i;
+  NET* net = &thd->net;
+
+  pthread_mutex_lock(&LOCK_slave_list);
+  
+  for(i = 0; i < slave_list.records; ++i)
+  {
+    SLAVE_INFO* si = (SLAVE_INFO*)hash_element(&slave_list, i);
+    packet->length(0);
+    net_store_data(packet, si->server_id);
+    net_store_data(packet, si->host);
+    net_store_data(packet, si->user);
+    net_store_data(packet, si->password);
+    net_store_data(packet, (uint)si->port);
+    if(my_net_write(net, (char*)packet->ptr(), packet->length()))
+    {
+      pthread_mutex_unlock(&LOCK_slave_list);
+      DBUG_RETURN(-1);
+    }
+  }
+  pthread_mutex_unlock(&LOCK_slave_list);
+  send_eof(net);
+  DBUG_RETURN(0);
+}
+
 int show_binlog_info(THD* thd)
 {
   DBUG_ENTER("show_binlog_info");

sql/sql_repl.h

@@ -3,6 +3,16 @@
 
 #include "slave.h"
 
+typedef struct st_slave_info
+{
+  uint32 server_id;
+  char host[HOSTNAME_LENGTH+1];
+  char user[USERNAME_LENGTH+1];
+  char password[HASH_PASSWORD_LENGTH+1];
+  uint16 port;
+} SLAVE_INFO;
+
+extern HASH slave_list;
 extern char* master_host;
 extern my_string opt_bin_logname, master_info_file;
 extern uint32 server_id;
@@ -17,8 +27,12 @@ int stop_slave(THD* thd = 0, bool net_report = 1);
 int load_master_data(THD* thd);
 int connect_to_master(THD *thd, MYSQL* mysql, MASTER_INFO* mi);
 int change_master(THD* thd);
+int show_slave_hosts(THD* thd);
 void reset_slave();
 void reset_master();
+void init_slave_list();
+void end_slave_list();
+int register_slave(THD* thd, uchar* packet, uint packet_length);
 int purge_master_logs(THD* thd, const char* to_log);
 bool log_in_use(const char* log_name);
 void adjust_linfo_offsets(my_off_t purge_offset);

sql/sql_yacc.yy

@@ -2247,6 +2247,10 @@ show_param:
           {
 	    Lex->sql_command = SQLCOM_SHOW_BINLOGS;
           }
+        | SLAVE HOSTS_SYM
+          {
+	    Lex->sql_command = SQLCOM_SHOW_SLAVE_HOSTS;
+          }
 	| keys_or_index FROM table_ident opt_db
 	  {
 	    Lex->sql_command= SQLCOM_SHOW_KEYS;