Merge riska.(none):/home/sven/bktip/5.1-new-rpl

into  riska.(none):/home/sven/bk/b32434-version_replication/5.1-new-rpl


sql/log_event.cc:
  Auto merged

client/mysqlbinlog.cc

@@ -270,7 +270,7 @@ public:
   File prepare_new_file_for_old_format(Load_log_event *le, char *filename);
   int load_old_format_file(NET* net, const char *server_fname,
 			   uint server_fname_len, File file);
-  int process_first_event(const char *bname, uint blen, const char *block,
+  int process_first_event(const char *bname, uint blen, const uchar *block,
                           uint block_len, uint file_id,
                           Create_file_log_event *ce);
 };
@@ -375,7 +375,7 @@ int Load_log_processor::load_old_format_file(NET* net, const char*server_fname,
 */
 
 int Load_log_processor::process_first_event(const char *bname, uint blen,
-                                            const char *block, uint block_len,
+                                            const uchar *block, uint block_len,
                                             uint file_id,
                                             Create_file_log_event *ce)
 {

include/my_sys.h

@@ -521,6 +521,11 @@ typedef int (*qsort2_cmp)(const void *, const void *, const void *);
 #define my_b_tell(info) ((info)->pos_in_file + \
 			 (size_t) (*(info)->current_pos - (info)->request_pos))
 
+#define my_b_get_buffer_start(info) (info)->request_pos 
+#define my_b_get_bytes_in_buffer(info) (char*) (info)->read_end -   \
+  (char*) my_b_get_buffer_start(info)
+#define my_b_get_pos_in_file(info) (info)->pos_in_file
+
 /* tell write offset in the SEQ_APPEND cache */
 int      my_b_copy_to_file(IO_CACHE *cache, FILE *file);
 my_off_t my_b_append_tell(IO_CACHE* info);

mysql-test/include/show_binlog_events2.inc

-#
-# Differs slightly from show_binlog events in showing server_id
-# which is important for some tests
-#
---let $binlog_start=106
+--let $binlog_start=98
 --replace_result $binlog_start <binlog_start>
 --replace_column 2 # 5 #
 --replace_regex /\/\* xid=.* \*\//\/* XID *\// /table_id: [0-9]+/table_id: #/

mysql-test/r/rpl_loaddata_map.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+create table t2 (id int not null primary key auto_increment);
+select @@session.read_buffer_size - @@session.max_allowed_packet > 0 ;
+@@session.read_buffer_size - @@session.max_allowed_packet > 0
+1
+load data infile 'MYSQLTEST_VARDIR/tmp/bug30435_5k.txt' into table t2;
+select count(*) from t2 /* 5 000 */;
+count(*)
+5000
+show binlog events in 'master-bin.000002' from 98;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+master-bin.000002	98	Query	1	#	use `test`; create table t2 (id int not null primary key auto_increment)
+master-bin.000002	221	Begin_load_query	1	#	;file_id=1;block_len=7168
+master-bin.000002	7412	Append_block	1	#	;file_id=1;block_len=7168
+master-bin.000002	14603	Append_block	1	#	;file_id=1;block_len=2048
+master-bin.000002	16674	Append_block	1	#	;file_id=1;block_len=7168
+master-bin.000002	23865	Append_block	1	#	;file_id=1;block_len=341
+master-bin.000002	24229	Execute_load_query	1	#	use `test`; load data infile 'MYSQLTEST_VARDIR/tmp/bug30435_5k.txt' into table t2 ;file_id=1
+select count(*) from t2 /* 5 000 */;
+count(*)
+5000
+drop table t1, t2;
+end of the tests

mysql-test/r/rpl_user.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+reset master;
+delete from mysql.user where Host='fakehost';
+create user 'foo'@'fakehost';
+create user 'foo'@'fakehost', 'bar'@'fakehost';
+ERROR HY000: Operation CREATE USER failed for 'foo'@'fakehost'
+create user 'foo'@'fakehost', 'bar'@'fakehost';
+ERROR HY000: Operation CREATE USER failed for 'foo'@'fakehost','bar'@'fakehost'
+select Host,User from mysql.user where Host='fakehost';
+Host	User
+fakehost	bar
+fakehost	foo
+rename user 'foo'@'fakehost' to 'foofoo'@'fakehost';
+rename user 'not_exist_user1'@'fakehost' to 'foobar'@'fakehost', 'bar'@'fakehost' to 'barbar'@'fakehost';
+ERROR HY000: Operation RENAME USER failed for 'not_exist_user1'@'fakehost'
+rename user 'not_exist_user1'@'fakehost' to 'foobar'@'fakehost', 'not_exist_user2'@'fakehost' to 'barfoo'@'fakehost';
+ERROR HY000: Operation RENAME USER failed for 'not_exist_user1'@'fakehost','not_exist_user2'@'fakehost'
+select Host,User from mysql.user where Host='fakehost';
+Host	User
+fakehost	barbar
+fakehost	foofoo
+drop user 'foofoo'@'fakehost';
+drop user 'not_exist_user1'@'fakehost', 'barbar'@'fakehost';
+ERROR HY000: Operation DROP USER failed for 'not_exist_user1'@'fakehost'
+drop user 'not_exist_user1'@'fakehost', 'not_exist_user2'@'fakehost';
+ERROR HY000: Operation DROP USER failed for 'not_exist_user1'@'fakehost','not_exist_user2'@'fakehost'
+select Host,User from mysql.user where Host='fakehost';
+Host	User
+show binlog events from 98;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+master-bin.000001	98	Query	1	#	use `test`; delete from mysql.user where Host='fakehost'
+master-bin.000001	205	Query	1	#	use `test`; create user 'foo'@'fakehost'
+master-bin.000001	296	Query	1	#	use `test`; create user 'foo'@'fakehost', 'bar'@'fakehost'
+master-bin.000001	405	Query	1	#	use `test`; rename user 'foo'@'fakehost' to 'foofoo'@'fakehost'
+master-bin.000001	519	Query	1	#	use `test`; rename user 'not_exist_user1'@'fakehost' to 'foobar'@'fakehost', 'bar'@'fakehost' to 'barbar'@'fakehost'
+master-bin.000001	686	Query	1	#	use `test`; drop user 'foofoo'@'fakehost'
+master-bin.000001	778	Query	1	#	use `test`; drop user 'not_exist_user1'@'fakehost', 'barbar'@'fakehost'

mysql-test/t/rpl_loaddata_map-master.opt

+--read_buffer_size=9K --max_allowed_packet=8K

mysql-test/t/rpl_loaddata_map-slave.opt

+--max_allowed_packet=8K

mysql-test/t/rpl_loaddata_map.test

+#
+#  check replication of load data with the server parameters subjected to
+#  read_buffer_size > max_allowed_packet
+#
+#  BUG#30435 loading large LOAD DATA INFILE breaks slave with 
+#            read_buffer_size set on master
+#  BUG#33413 show binlog events fails if binlog has event size of close
+#            to max_allowed_packet
+
+source include/master-slave.inc;
+source include/have_innodb.inc;
+
+--disable_query_log
+let $rows= 5000;
+create table t1 (id int not null primary key auto_increment);
+
+while($rows)
+{
+  eval insert into t1 values (null);
+  dec $rows;
+}
+eval select * into outfile '$MYSQLTEST_VARDIR/tmp/bug30435_5k.txt' from t1;
+flush logs;
+--enable_query_log
+
+connection master;
+create table t2 (id int not null primary key auto_increment);
+
+select @@session.read_buffer_size - @@session.max_allowed_packet > 0 ;
+
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+eval load data infile '$MYSQLTEST_VARDIR/tmp/bug30435_5k.txt' into table t2;
+select count(*) from t2 /* 5 000 */;
+
+# the binglog will show fragmented Append_block events
+--let $binlog_start=98
+--replace_column 5 #
+--replace_regex /\/\* xid=.* \*\//\/* XID *\//
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--eval show binlog events in 'master-bin.000002' from $binlog_start
+
+
+sync_slave_with_master;
+#connection slave;
+select count(*) from t2 /* 5 000 */;
+
+connection master;
+drop table t1, t2;
+sync_slave_with_master;
+remove_file $MYSQLTEST_VARDIR/tmp/bug30435_5k.txt;
+
+--echo end of the tests

mysql-test/t/rpl_user.test

+# BUG#33862 completely failed DROP USER statement gets replicated
+
+--source include/master-slave.inc
+
+reset master;
+
+#
+# remove all users will be used in the test
+#
+delete from mysql.user where Host='fakehost';
+sync_slave_with_master;
+
+#
+# Test create user
+#
+connection master;
+create user 'foo'@'fakehost';
+--error ER_CANNOT_USER
+create user 'foo'@'fakehost', 'bar'@'fakehost';
+--error ER_CANNOT_USER
+create user 'foo'@'fakehost', 'bar'@'fakehost';
+
+sync_slave_with_master;
+select Host,User from mysql.user where Host='fakehost';
+
+#
+# Test rename user
+#
+connection master;
+rename user 'foo'@'fakehost' to 'foofoo'@'fakehost';
+--error ER_CANNOT_USER
+rename user 'not_exist_user1'@'fakehost' to 'foobar'@'fakehost', 'bar'@'fakehost' to 'barbar'@'fakehost';
+--error ER_CANNOT_USER
+rename user 'not_exist_user1'@'fakehost' to 'foobar'@'fakehost', 'not_exist_user2'@'fakehost' to 'barfoo'@'fakehost';
+
+sync_slave_with_master;
+select Host,User from mysql.user where Host='fakehost';
+
+#
+# Test drop user
+#
+connection master;
+drop user 'foofoo'@'fakehost';
+--error ER_CANNOT_USER
+drop user 'not_exist_user1'@'fakehost', 'barbar'@'fakehost';
+--error ER_CANNOT_USER
+drop user 'not_exist_user1'@'fakehost', 'not_exist_user2'@'fakehost';
+
+sync_slave_with_master;
+select Host,User from mysql.user where Host='fakehost';
+
+#
+# show the binlog events on the master
+#
+connection master;
+source include/show_binlog_events.inc;

sql-common/client.c

@@ -2095,7 +2095,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
   /* Check if version of protocol matches current one */
 
   mysql->protocol_version= net->read_pos[0];
-  DBUG_DUMP("packet",(char*) net->read_pos,10);
+  DBUG_DUMP("packet",(uchar*) net->read_pos,10);
   DBUG_PRINT("info",("mysql protocol version %d, server=%d",
 		     PROTOCOL_VERSION, mysql->protocol_version));
   if (mysql->protocol_version != PROTOCOL_VERSION)
@@ -2221,7 +2221,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
       Send client_flag, max_packet_size - unencrypted otherwise
       the server does not know we want to do SSL
     */
-    if (my_net_write(net,buff,(uint) (end-buff)) || net_flush(net))
+    if (my_net_write(net, (uchar*) buff, (uint) (end-buff)) || net_flush(net))
     {
       set_mysql_extended_error(mysql, CR_SERVER_LOST, unknown_sqlstate,
                                ER(CR_SERVER_LOST_EXTENDED),

sql/item_cmpfunc.cc

@@ -947,7 +947,7 @@ get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
     *is_null= item->null_value;
   }
   if (*is_null)
-    return -1;
+    return ~(ulonglong) 0;
   /*
     Convert strings to the integer DATE/DATETIME representation.
     Even if both dates provided in strings we can't compare them directly as

sql/log_event.cc

@@ -5109,7 +5109,7 @@ Create_file_log_event(THD* thd_arg, sql_exchange* ex,
 		      const char* db_arg, const char* table_name_arg,
 		      List<Item>& fields_arg, enum enum_duplicates handle_dup,
                       bool ignore,
-		      char* block_arg, uint block_len_arg, bool using_trans)
+		      uchar* block_arg, uint block_len_arg, bool using_trans)
   :Load_log_event(thd_arg,ex,db_arg,table_name_arg,fields_arg,handle_dup, ignore,
 		  using_trans),
    fake_base(0), block(block_arg), event_buf(0), block_len(block_len_arg),
@@ -5208,7 +5208,7 @@ Create_file_log_event::Create_file_log_event(const char* buf, uint len,
                    create_file_header_len + 1);
     if (len < block_offset)
       DBUG_VOID_RETURN;
-    block = (char*)buf + block_offset;
+    block = (uchar*)buf + block_offset;
     block_len = len - block_offset;
   }
   else
@@ -5366,7 +5366,7 @@ err:
 #ifndef MYSQL_CLIENT  
 Append_block_log_event::Append_block_log_event(THD *thd_arg,
                                                const char *db_arg,
-					       char *block_arg,
+					       uchar *block_arg,
 					       uint block_len_arg,
 					       bool using_trans)
   :Log_event(thd_arg,0, using_trans), block(block_arg),
@@ -5392,7 +5392,7 @@ Append_block_log_event::Append_block_log_event(const char* buf, uint len,
   if (len < total_header_len)
     DBUG_VOID_RETURN;
   file_id= uint4korr(buf + common_header_len + AB_FILE_ID_OFFSET);
-  block= (char*)buf + total_header_len;
+  block= (uchar*)buf + total_header_len;
   block_len= len - total_header_len;
   DBUG_VOID_RETURN;
 }
@@ -5784,7 +5784,7 @@ err:
 
 #ifndef MYSQL_CLIENT
 Begin_load_query_log_event::
-Begin_load_query_log_event(THD* thd_arg, const char* db_arg, char* block_arg,
+Begin_load_query_log_event(THD* thd_arg, const char* db_arg, uchar* block_arg,
                            uint block_len_arg, bool using_trans)
   :Append_block_log_event(thd_arg, db_arg, block_arg, block_len_arg,
                           using_trans)

sql/log_event.h

@@ -2519,7 +2519,7 @@ protected:
   */
   bool fake_base;
 public:
-  char* block;
+  uchar* block;
   const char *event_buf;
   uint block_len;
   uint file_id;
@@ -2530,7 +2530,7 @@ public:
 			const char* table_name_arg,
 			List<Item>& fields_arg,
 			enum enum_duplicates handle_dup, bool ignore,
-			char* block_arg, uint block_len_arg,
+			uchar* block_arg, uint block_len_arg,
 			bool using_trans);
 #ifdef HAVE_REPLICATION
   void pack_info(Protocol* protocol);
@@ -2585,7 +2585,7 @@ private:
 class Append_block_log_event: public Log_event
 {
 public:
-  char* block;
+  uchar* block;
   uint block_len;
   uint file_id;
   /*
@@ -2602,7 +2602,7 @@ public:
   const char* db;
 
 #ifndef MYSQL_CLIENT
-  Append_block_log_event(THD* thd, const char* db_arg, char* block_arg,
+  Append_block_log_event(THD* thd, const char* db_arg, uchar* block_arg,
 			 uint block_len_arg, bool using_trans);
 #ifdef HAVE_REPLICATION
   void pack_info(Protocol* protocol);
@@ -2726,7 +2726,7 @@ class Begin_load_query_log_event: public Append_block_log_event
 public:
 #ifndef MYSQL_CLIENT
   Begin_load_query_log_event(THD* thd_arg, const char *db_arg,
-                             char* block_arg, uint block_len_arg,
+                             uchar* block_arg, uint block_len_arg,
                              bool using_trans);
 #ifdef HAVE_REPLICATION
   Begin_load_query_log_event(THD* thd);

sql/rpl_utility.cc

@@ -164,7 +164,7 @@ uint32 table_def::calc_field_size(uint col, uchar *master_data) const
     break;
   }
   default:
-    length= -1;
+    length= ~(uint32) 0;
   }
   return length;
 }

sql/slave.cc

@@ -2823,7 +2823,7 @@ static int process_io_create_file(Master_info* mi, Create_file_log_event* cev)
       }
       if (unlikely(cev_not_written))
       {
-        cev->block = (char*)net->read_pos;
+        cev->block = net->read_pos;
         cev->block_len = num_bytes;
         if (unlikely(mi->rli.relay_log.append(cev)))
         {
@@ -2837,7 +2837,7 @@ static int process_io_create_file(Master_info* mi, Create_file_log_event* cev)
       }
       else
       {
-        aev.block = (char*)net->read_pos;
+        aev.block = net->read_pos;
         aev.block_len = num_bytes;
         aev.log_pos = cev->log_pos;
         if (unlikely(mi->rli.relay_log.append(&aev)))

sql/sql_acl.cc

@@ -5489,6 +5489,7 @@ bool mysql_create_user(THD *thd, List <LEX_USER> &list)
   LEX_USER *user_name, *tmp_user_name;
   List_iterator <LEX_USER> user_list(list);
   TABLE_LIST tables[GRANT_TABLES];
+  bool some_users_created= FALSE;
   DBUG_ENTER("mysql_create_user");
 
   /*
@@ -5524,6 +5525,7 @@ bool mysql_create_user(THD *thd, List <LEX_USER> &list)
       continue;
     }
 
+    some_users_created= TRUE;
     sql_mode= thd->variables.sql_mode;
     if (replace_user_table(thd, tables[0].table, *user_name, 0, 0, 1, 0))
     {
@@ -5534,12 +5536,14 @@ bool mysql_create_user(THD *thd, List <LEX_USER> &list)
 
   VOID(pthread_mutex_unlock(&acl_cache->lock));
 
-  write_bin_log(thd, FALSE, thd->query, thd->query_length);
+  if (result)
+    my_error(ER_CANNOT_USER, MYF(0), "CREATE USER", wrong_users.c_ptr_safe());
+
+  if (some_users_created)
+    write_bin_log(thd, FALSE, thd->query, thd->query_length);
 
   rw_unlock(&LOCK_grant);
   close_thread_tables(thd);
-  if (result)
-    my_error(ER_CANNOT_USER, MYF(0), "CREATE USER", wrong_users.c_ptr_safe());
   DBUG_RETURN(result);
 }
 
@@ -5564,6 +5568,7 @@ bool mysql_drop_user(THD *thd, List <LEX_USER> &list)
   LEX_USER *user_name, *tmp_user_name;
   List_iterator <LEX_USER> user_list(list);
   TABLE_LIST tables[GRANT_TABLES];
+  bool some_users_deleted= FALSE;
   DBUG_ENTER("mysql_drop_user");
 
   /*
@@ -5592,7 +5597,9 @@ bool mysql_drop_user(THD *thd, List <LEX_USER> &list)
     {
       append_user(&wrong_users, user_name);
       result= TRUE;
+      continue;
     }
+    some_users_deleted= TRUE;
   }
 
   /* Rebuild 'acl_check_hosts' since 'acl_users' has been modified */
@@ -5606,7 +5613,8 @@ bool mysql_drop_user(THD *thd, List <LEX_USER> &list)
   DBUG_PRINT("info", ("thd->net.last_errno: %d", thd->net.last_errno));
   DBUG_PRINT("info", ("thd->net.last_error: %s", thd->net.last_error));
 
-  write_bin_log(thd, FALSE, thd->query, thd->query_length);
+  if (some_users_deleted)
+    write_bin_log(thd, FALSE, thd->query, thd->query_length);
 
   rw_unlock(&LOCK_grant);
   close_thread_tables(thd);
@@ -5635,6 +5643,7 @@ bool mysql_rename_user(THD *thd, List <LEX_USER> &list)
   LEX_USER *user_to, *tmp_user_to;
   List_iterator <LEX_USER> user_list(list);
   TABLE_LIST tables[GRANT_TABLES];
+  bool some_users_renamed= FALSE;
   DBUG_ENTER("mysql_rename_user");
 
   /*
@@ -5675,7 +5684,9 @@ bool mysql_rename_user(THD *thd, List <LEX_USER> &list)
     {
       append_user(&wrong_users, user_from);
       result= TRUE;
+      continue;
     }
+    some_users_renamed= TRUE;
   }
   
   /* Rebuild 'acl_check_hosts' since 'acl_users' has been modified */
@@ -5683,12 +5694,14 @@ bool mysql_rename_user(THD *thd, List <LEX_USER> &list)
 
   VOID(pthread_mutex_unlock(&acl_cache->lock));
 
-  write_bin_log(thd, FALSE, thd->query, thd->query_length);
+  if (result)
+    my_error(ER_CANNOT_USER, MYF(0), "RENAME USER", wrong_users.c_ptr_safe());
+  
+  if (some_users_renamed && mysql_bin_log.is_open())
+    write_bin_log(thd, FALSE, thd->query, thd->query_length);
 
   rw_unlock(&LOCK_grant);
   close_thread_tables(thd);
-  if (result)
-    my_error(ER_CANNOT_USER, MYF(0), "RENAME USER", wrong_users.c_ptr_safe());
   DBUG_RETURN(result);
 }
 

sql/sql_parse.cc

@@ -1166,7 +1166,6 @@ bool dispatch_command(enum enum_server_command command, THD *thd,
       unregister_slave(thd,1,1);
       /*  fake COM_QUIT -- if we get here, the thread needs to terminate */
       error = TRUE;
-      net->error = 0;
       break;
     }
 #endif

sql/sql_repl.cc

@@ -1243,9 +1243,6 @@ bool change_master(THD* thd, Master_info* mi)
       DBUG_RETURN(TRUE);
     }
   }
-  mi->rli.group_master_log_pos = mi->master_log_pos;
-  DBUG_PRINT("info", ("master_log_pos: %lu", (ulong) mi->master_log_pos));
-
   /*
     Coordinates in rli were spoilt by the 'if (need_relay_log_purge)' block,
     so restore them to good values. If we left them to ''/0, that would work;
@@ -1257,6 +1254,7 @@ bool change_master(THD* thd, Master_info* mi)
     That's why we always save good coords in rli.
   */
   mi->rli.group_master_log_pos= mi->master_log_pos;
+  DBUG_PRINT("info", ("master_log_pos: %lu", (ulong) mi->master_log_pos));
   strmake(mi->rli.group_master_log_name,mi->master_log_name,
 	  sizeof(mi->rli.group_master_log_name)-1);
 
@@ -1376,6 +1374,11 @@ bool mysql_show_binlog_events(THD* thd)
     if ((file=open_binlog(&log, linfo.log_file_name, &errmsg)) < 0)
       goto err;
 
+    /*
+      to account binlog event header size
+    */
+    thd->variables.max_allowed_packet += MAX_LOG_EVENT_HEADER;
+
     pthread_mutex_lock(log_lock);
 
     /*
@@ -1386,7 +1389,6 @@ bool mysql_show_binlog_events(THD* thd)
       This code will fail on a mixed relay log (one which has Format_desc then
       Rotate then Format_desc).
     */
-
     ev = Log_event::read_log_event(&log,(pthread_mutex_t*)0,description_event);
     if (ev)
     {
@@ -1578,39 +1580,54 @@ err:
   DBUG_RETURN(TRUE);
 }
 
-
+/**
+   Load data's io cache specific hook to be executed
+   before a chunk of data is being read into the cache's buffer
+   The fuction instantianates and writes into the binlog
+   replication events along LOAD DATA processing.
+   
+   @param file  pointer to io-cache
+   @return 0
+*/
 int log_loaded_block(IO_CACHE* file)
 {
+  DBUG_ENTER("log_loaded_block");
   LOAD_FILE_INFO *lf_info;
-  uint block_len ;
-
-  /* file->request_pos contains position where we started last read */
-  char* buffer = (char*) file->request_pos;
-  if (!(block_len = (char*) file->read_end - (char*) buffer))
-    return 0;
-  lf_info = (LOAD_FILE_INFO*) file->arg;
+  uint block_len;
+  /* buffer contains position where we started last read */
+  uchar* buffer= my_b_get_buffer_start(file);
+  uint max_event_size= current_thd->variables.max_allowed_packet;
+  lf_info= (LOAD_FILE_INFO*) file->arg;
   if (lf_info->thd->current_stmt_binlog_row_based)
     return 0;
   if (lf_info->last_pos_in_file != HA_POS_ERROR &&
-      lf_info->last_pos_in_file >= file->pos_in_file)
-    return 0;
-  lf_info->last_pos_in_file = file->pos_in_file;
-  if (lf_info->wrote_create_file)
-  {
-    Append_block_log_event a(lf_info->thd, lf_info->thd->db, buffer,
-                             block_len, lf_info->log_delayed);
-    mysql_bin_log.write(&a);
-  }
-  else
+      lf_info->last_pos_in_file >= my_b_get_pos_in_file(file))
+    DBUG_RETURN(0);
+  
+  for (block_len= my_b_get_bytes_in_buffer(file); block_len > 0;
+       buffer += min(block_len, max_event_size),
+       block_len -= min(block_len, max_event_size))
   {
-    Begin_load_query_log_event b(lf_info->thd, lf_info->thd->db,
-                                 buffer, block_len,
-                                 lf_info->log_delayed);
-    mysql_bin_log.write(&b);
-    lf_info->wrote_create_file = 1;
-    DBUG_SYNC_POINT("debug_lock.created_file_event",10);
+    lf_info->last_pos_in_file= my_b_get_pos_in_file(file);
+    if (lf_info->wrote_create_file)
+    {
+      Append_block_log_event a(lf_info->thd, lf_info->thd->db, buffer,
+                               min(block_len, max_event_size),
+                               lf_info->log_delayed);
+      mysql_bin_log.write(&a);
+    }
+    else
+    {
+      Begin_load_query_log_event b(lf_info->thd, lf_info->thd->db,
+                                   buffer,
+                                   min(block_len, max_event_size),
+                                   lf_info->log_delayed);
+      mysql_bin_log.write(&b);
+      lf_info->wrote_create_file= 1;
+      DBUG_SYNC_POINT("debug_lock.created_file_event",10);
+    }
   }
-  return 0;
+  DBUG_RETURN(0);
 }
 
 /*