Merge gbichot@bk-internal.mysql.com:/home/bk/mysql-4.0

into mysql.com:/home/mysql_src/mysql-4.0


sql/log.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/slave.cc:
  Auto merged

6 files changed, 59 insertions, 152 deletions

diff --git a/sql/log.cc b/sql/log.cc
index 7e12297d8ae..ee774ea3700 100644
--- a/sql/log.cc
+++ b/sql/log.cc
@@ -1068,6 +1068,7 @@ bool MYSQL_LOG::write(Log_event* event_info)
 #else
     IO_CACHE *file = &log_file;
 #endif    
+    DBUG_PRINT("info",("event type=%d",event_info->get_type_code()));
     /* 
        In the future we need to add to the following if tests like
        "do the involved tables match (to be implemented)
diff --git a/sql/log_event.cc b/sql/log_event.cc
index a4883599b2b..9e7546dd635 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -1605,11 +1605,12 @@ void Create_file_log_event::pack_info(String* packet)
 #endif  
 
 #ifndef MYSQL_CLIENT  
-Append_block_log_event::Append_block_log_event(THD* thd_arg, char* block_arg,
+Append_block_log_event::Append_block_log_event(THD* thd_arg, const char* db_arg,
+                                               char* block_arg,
 					       uint block_len_arg,
 					       bool using_trans)
   :Log_event(thd_arg,0, using_trans), block(block_arg),
-   block_len(block_len_arg), file_id(thd_arg->file_id)
+   block_len(block_len_arg), file_id(thd_arg->file_id), db(db_arg)
 {
 }
 #endif  
@@ -1653,8 +1654,9 @@ void Append_block_log_event::pack_info(String* packet)
   net_store_data(packet, buf1);
 }
 
-Delete_file_log_event::Delete_file_log_event(THD* thd_arg, bool using_trans)
-  :Log_event(thd_arg, 0, using_trans), file_id(thd_arg->file_id)
+Delete_file_log_event::Delete_file_log_event(THD* thd_arg, const char* db_arg,
+                                             bool using_trans) 
+  :Log_event(thd_arg, 0, using_trans), file_id(thd_arg->file_id), db(db_arg)
 {
 }
 #endif  
@@ -1699,8 +1701,9 @@ void Delete_file_log_event::pack_info(String* packet)
 
 
 #ifndef MYSQL_CLIENT  
-Execute_load_log_event::Execute_load_log_event(THD* thd_arg, bool using_trans)
-  :Log_event(thd_arg, 0, using_trans), file_id(thd_arg->file_id)
+Execute_load_log_event::Execute_load_log_event(THD* thd_arg, const char* db_arg,
+                                               bool using_trans)
+  :Log_event(thd_arg, 0, using_trans), file_id(thd_arg->file_id), db(db_arg)
 {
 }
 #endif  
@@ -1904,7 +1907,19 @@ int Load_log_event::exec_event(NET* net, struct st_relay_log_info* rli,
   DBUG_ASSERT(thd->query == 0);
   thd->query = 0;				// Should not be needed
   thd->query_error = 0;
-	    
+
+  /*
+    We test replicate_*_db rules. Note that we have already prepared the file to
+    load, even if we are going to ignore and delete it now. So it is possible
+    that we did a lot of disk writes for nothing. In other words, a big LOAD
+    DATA INFILE on the master will still consume a lot of space on the slave
+    (space in the relay log + space of temp files: twice the space of the file
+    to load...) even if it will finally be ignored.
+    TODO: fix this; this can be done by testing rules in
+    Create_file_log_event::exec_event() and then discarding Append_block and
+    al. Another way is do the filtering in the I/O thread (more efficient: no
+    disk writes at all).
+  */
   if (db_ok(thd->db, replicate_do_db, replicate_ignore_db))
   {
     thd->set_time((time_t)when);
@@ -2209,7 +2224,7 @@ int Create_file_log_event::exec_event(struct st_relay_log_info* rli)
       init_io_cache(&file, fd, IO_SIZE, WRITE_CACHE, (my_off_t)0, 0,
 		    MYF(MY_WME|MY_NABP)))
   {
-    slave_print_error(rli,my_errno, "Could not open file '%s'", fname_buf);
+    slave_print_error(rli,my_errno, "Error in Create_file event: could not open file '%s'", fname_buf);
     goto err;
   }
   
@@ -2220,7 +2235,7 @@ int Create_file_log_event::exec_event(struct st_relay_log_info* rli)
   if (write_base(&file))
   {
     strmov(p, ".info"); // to have it right in the error message
-    slave_print_error(rli,my_errno, "Could not write to file '%s'", fname_buf);
+    slave_print_error(rli,my_errno, "Error in Create_file event: could not write to file '%s'", fname_buf);
     goto err;
   }
   end_io_cache(&file);
@@ -2230,16 +2245,14 @@ int Create_file_log_event::exec_event(struct st_relay_log_info* rli)
   if ((fd = my_open(fname_buf, O_WRONLY|O_CREAT|O_BINARY|O_TRUNC,
 		    MYF(MY_WME))) < 0)
   {
-    slave_print_error(rli,my_errno, "Could not open file '%s'", fname_buf);
+    slave_print_error(rli,my_errno, "Error in Create_file event: could not open file '%s'", fname_buf);
     goto err;
   }
   if (my_write(fd, (byte*) block, block_len, MYF(MY_WME+MY_NABP)))
   {
-    slave_print_error(rli,my_errno, "Write to '%s' failed", fname_buf);
+    slave_print_error(rli,my_errno, "Error in Create_file event: write to '%s' failed", fname_buf);
     goto err;
   }
-  if (mysql_bin_log.is_open())
-    mysql_bin_log.write(this);
   error=0;					// Everything is ok
 
 err:
@@ -2258,8 +2271,6 @@ int Delete_file_log_event::exec_event(struct st_relay_log_info* rli)
   (void) my_delete(fname, MYF(MY_WME));
   memcpy(p, ".info", 6);
   (void) my_delete(fname, MYF(MY_WME));
-  if (mysql_bin_log.is_open())
-    mysql_bin_log.write(this);
   return Log_event::exec_event(rli);
 }
 
@@ -2273,16 +2284,14 @@ int Append_block_log_event::exec_event(struct st_relay_log_info* rli)
   memcpy(p, ".data", 6);
   if ((fd = my_open(fname, O_WRONLY|O_APPEND|O_BINARY, MYF(MY_WME))) < 0)
   {
-    slave_print_error(rli,my_errno, "Could not open file '%s'", fname);
+    slave_print_error(rli,my_errno, "Error in Append_block event: could not open file '%s'", fname);
     goto err;
   }
   if (my_write(fd, (byte*) block, block_len, MYF(MY_WME+MY_NABP)))
   {
-    slave_print_error(rli,my_errno, "Write to '%s' failed", fname);
+    slave_print_error(rli,my_errno, "Error in Append_block event: write to '%s' failed", fname);
     goto err;
   }
-  if (mysql_bin_log.is_open())
-    mysql_bin_log.write(this);
   error=0;
 
 err:
@@ -2297,7 +2306,6 @@ int Execute_load_log_event::exec_event(struct st_relay_log_info* rli)
   char *p= slave_load_file_stem(fname, file_id, server_id);
   int fd;
   int error = 1;
-  ulong save_options;
   IO_CACHE file;
   Load_log_event* lev = 0;
 
@@ -2306,7 +2314,7 @@ int Execute_load_log_event::exec_event(struct st_relay_log_info* rli)
       init_io_cache(&file, fd, IO_SIZE, READ_CACHE, (my_off_t)0, 0,
 		    MYF(MY_WME|MY_NABP)))
   {
-    slave_print_error(rli,my_errno, "Could not open file '%s'", fname);
+    slave_print_error(rli,my_errno, "Error in Exec_load event: could not open file '%s'", fname);
     goto err;
   }
   if (!(lev = (Load_log_event*)Log_event::read_log_event(&file,
@@ -2314,21 +2322,16 @@ int Execute_load_log_event::exec_event(struct st_relay_log_info* rli)
 							 (bool)0)) ||
       lev->get_type_code() != NEW_LOAD_EVENT)
   {
-    slave_print_error(rli,0, "File '%s' appears corrupted", fname);
+    slave_print_error(rli,0, "Error in Exec_load event: file '%s' appears corrupted", fname);
     goto err;
   }
-  /*
-    We want to disable binary logging in slave thread because we need the file
-    events to appear in the same order as they do on the master relative to
-    other events, so that we can preserve ascending order of log sequence
-    numbers - needed to handle failover .
-  */
-  save_options = thd->options;
-  thd->options &= ~ (ulong) (OPTION_BIN_LOG);
+
   lev->thd = thd;
   /*
     lev->exec_event should use rli only for errors
-    i.e. should not advance rli's position
+    i.e. should not advance rli's position.
+    lev->exec_event is the place where the table is loaded (it calls
+    mysql_load()).
   */
   if (lev->exec_event(0,rli,1)) 
   {
@@ -2349,15 +2352,11 @@ int Execute_load_log_event::exec_event(struct st_relay_log_info* rli)
 			tmp, fname);
       my_free(tmp,MYF(0));
     }
-    thd->options= save_options;
     goto err;
   }
-  thd->options = save_options;
   (void) my_delete(fname, MYF(MY_WME));
   memcpy(p, ".data", 6);
   (void) my_delete(fname, MYF(MY_WME));
-  if (mysql_bin_log.is_open())
-    mysql_bin_log.write(this);
   error = 0;
 
 err:
diff --git a/sql/log_event.h b/sql/log_event.h
index 1031b940528..227c0243b9c 100644
--- a/sql/log_event.h
+++ b/sql/log_event.h
@@ -687,9 +687,20 @@ public:
   char* block;
   uint block_len;
   uint file_id;
-  
+  /*
+    'db' is filled when the event is created in mysql_load() (the event needs to
+    have a 'db' member to be well filtered by binlog-*-db rules). 'db' is not
+    written to the binlog (it's not used by Append_block_log_event::write()), so
+    it can't be read in the Append_block_log_event(const char* buf, int
+    event_len) constructor.
+    In other words, 'db' is used only for filtering by binlog-*-db rules.
+    Create_file_log_event is different: its 'db' (which is inherited from
+    Load_log_event) is written to the binlog and can be re-read.
+  */
+  const char* db;
+
 #ifndef MYSQL_CLIENT
-  Append_block_log_event(THD* thd, char* block_arg,
+  Append_block_log_event(THD* thd, const char* db_arg, char* block_arg,
 			 uint block_len_arg, bool using_trans);
   int exec_event(struct st_relay_log_info* rli);
   void pack_info(String* packet);
@@ -703,6 +714,7 @@ public:
   int get_data_size() { return  block_len + APPEND_BLOCK_HEADER_LEN ;}
   bool is_valid() { return block != 0; }
   int write_data(IO_CACHE* file);
+  const char* get_db() { return db; }
 };
 
 
@@ -710,9 +722,10 @@ class Delete_file_log_event: public Log_event
 {
 public:
   uint file_id;
+  const char* db; /* see comment in Append_block_log_event */
   
 #ifndef MYSQL_CLIENT
-  Delete_file_log_event(THD* thd, bool using_trans);
+  Delete_file_log_event(THD* thd, const char* db_arg, bool using_trans);
   void pack_info(String* packet);
   int exec_event(struct st_relay_log_info* rli);
 #else
@@ -725,15 +738,17 @@ public:
   int get_data_size() { return DELETE_FILE_HEADER_LEN ;}
   bool is_valid() { return file_id != 0; }
   int write_data(IO_CACHE* file);
+  const char* get_db() { return db; }
 };
 
 class Execute_load_log_event: public Log_event
 {
 public:
   uint file_id;
-  
+  const char* db; /* see comment in Append_block_log_event */ 
+
 #ifndef MYSQL_CLIENT
-  Execute_load_log_event(THD* thd, bool using_trans);
+  Execute_load_log_event(THD* thd, const char* db_arg, bool using_trans);
   void pack_info(String* packet);
   int exec_event(struct st_relay_log_info* rli);
 #else
@@ -746,6 +761,7 @@ public:
   int get_data_size() { return  EXEC_LOAD_HEADER_LEN ;}
   bool is_valid() { return file_id != 0; }
   int write_data(IO_CACHE* file);
+  const char* get_db() { return db; }
 };
 
 #ifdef MYSQL_CLIENT
diff --git a/sql/slave.cc b/sql/slave.cc
index 145144072c9..9b5066f5804 100644
--- a/sql/slave.cc
+++ b/sql/slave.cc
@@ -57,7 +57,6 @@ typedef enum { SLAVE_THD_IO, SLAVE_THD_SQL} SLAVE_THD_TYPE;
 
 void skip_load_data_infile(NET* net);
 static int process_io_rotate(MASTER_INFO* mi, Rotate_log_event* rev);
-static int process_io_create_file(MASTER_INFO* mi, Create_file_log_event* cev);
 static bool wait_for_relay_log_space(RELAY_LOG_INFO* rli);
 static inline bool io_slave_killed(THD* thd,MASTER_INFO* mi);
 static inline bool sql_slave_killed(THD* thd,RELAY_LOG_INFO* rli);
@@ -2729,102 +2728,6 @@ the slave SQL thread with \"SLAVE START\". We stopped at log \
 }
 
 
-static int process_io_create_file(MASTER_INFO* mi, Create_file_log_event* cev)
-{
-  int error = 1;
-  ulong num_bytes;
-  bool cev_not_written;
-  THD* thd;
-  NET* net = &mi->mysql->net;
-  DBUG_ENTER("process_io_create_file");
-
-  if (unlikely(!cev->is_valid()))
-    DBUG_RETURN(1);
-  /*
-    TODO: fix to honor table rules, not only db rules
-  */
-  if (!db_ok(cev->db, replicate_do_db, replicate_ignore_db))
-  {
-    skip_load_data_infile(net);
-    DBUG_RETURN(0);
-  }
-  DBUG_ASSERT(cev->inited_from_old);
-  thd = mi->io_thd;
-  thd->file_id = cev->file_id = mi->file_id++;
-  thd->server_id = cev->server_id;
-  cev_not_written = 1;
-  
-  if (unlikely(net_request_file(net,cev->fname)))
-  {
-    sql_print_error("Slave I/O: failed requesting download of '%s'",
-		    cev->fname);
-    goto err;
-  }
-
-  /*
-    This dummy block is so we could instantiate Append_block_log_event
-    once and then modify it slightly instead of doing it multiple times
-    in the loop
-  */
-  {
-    Append_block_log_event aev(thd,0,0,0);
-  
-    for (;;)
-    {
-      if (unlikely((num_bytes=my_net_read(net)) == packet_error))
-      {
-	sql_print_error("Network read error downloading '%s' from master",
-			cev->fname);
-	goto err;
-      }
-      if (unlikely(!num_bytes)) /* eof */
-      {
-	send_ok(net); /* 3.23 master wants it */
-	Execute_load_log_event xev(thd,0);
-	xev.log_pos = mi->master_log_pos;
-	if (unlikely(mi->rli.relay_log.append(&xev)))
-	{
-	  sql_print_error("Slave I/O: error writing Exec_load event to \
-relay log");
-	  goto err;
-	}
-	mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
-	break;
-      }
-      if (unlikely(cev_not_written))
-      {
-	cev->block = (char*)net->read_pos;
-	cev->block_len = num_bytes;
-	cev->log_pos = mi->master_log_pos;
-	if (unlikely(mi->rli.relay_log.append(cev)))
-	{
-	  sql_print_error("Slave I/O: error writing Create_file event to \
-relay log");
-	  goto err;
-	}
-	cev_not_written=0;
-	mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
-      }
-      else
-      {
-	aev.block = (char*)net->read_pos;
-	aev.block_len = num_bytes;
-	aev.log_pos = mi->master_log_pos;
-	if (unlikely(mi->rli.relay_log.append(&aev)))
-	{
-	  sql_print_error("Slave I/O: error writing Append_block event to \
-relay log");
-	  goto err;
-	}
-	mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total) ;
-      }
-    }
-  }
-  error=0;
-err:
-  DBUG_RETURN(error);
-}
-
 /*
   Start using a new binary log on the master
 
@@ -2928,18 +2831,6 @@ static int queue_old_event(MASTER_INFO *mi, const char *buf,
     mi->ignore_stop_event=1;
     inc_pos= 0;
     break;
-  case CREATE_FILE_EVENT:
-  {
-    /* We come here when and only when tmp_buf != 0 */
-    DBUG_ASSERT(tmp_buf);
-    int error = process_io_create_file(mi,(Create_file_log_event*)ev);
-    delete ev;
-    mi->master_log_pos += event_len;
-    DBUG_PRINT("info", ("master_log_pos: %d", (ulong) mi->master_log_pos));
-    pthread_mutex_unlock(&mi->data_lock);
-    my_free((char*)tmp_buf, MYF(0));
-    DBUG_RETURN(error);
-  }
   default:
     mi->ignore_stop_event=0;
     inc_pos= event_len;
diff --git a/sql/sql_load.cc b/sql/sql_load.cc
index ee573672c35..593cfb82b1c 100644
--- a/sql/sql_load.cc
+++ b/sql/sql_load.cc
@@ -299,7 +299,7 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
 	  which is nonsense.
 	*/
 	read_info.end_io_cache();
-        Delete_file_log_event d(thd, log_delayed);
+        Delete_file_log_event d(thd, db, log_delayed);
         mysql_bin_log.write(&d);
       }
     }
@@ -331,7 +331,7 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
       read_info.end_io_cache(); // make sure last block gets logged
       if (lf_info.wrote_create_file)
       {
-        Execute_load_log_event e(thd, log_delayed);
+        Execute_load_log_event e(thd, db, log_delayed);
         mysql_bin_log.write(&e);
       }
     }
diff --git a/sql/sql_repl.cc b/sql/sql_repl.cc
index cdd0bca4a0e..5a42614dff4 100644
--- a/sql/sql_repl.cc
+++ b/sql/sql_repl.cc
@@ -1216,7 +1216,7 @@ int log_loaded_block(IO_CACHE* file)
   lf_info->last_pos_in_file = file->pos_in_file;
   if (lf_info->wrote_create_file)
   {
-    Append_block_log_event a(lf_info->thd, buffer, block_len,
+    Append_block_log_event a(lf_info->thd, lf_info->db, buffer, block_len,
 			     lf_info->log_delayed);
     mysql_bin_log.write(&a);
   }