Fixed Bug#2491, INSERT DELAYED causes binary log unusable by mysqlbinlog (replication is ok)

Setting insert delayed threads = 0 at mysql_init_command.

BitKeeper/etc/logging_ok

@@ -46,6 +46,7 @@ jani@rhols221.adsl.netsonic.fi
 jani@rhols221.arenanet.fi
 jani@ua126d19.elisa.omakaista.fi
 jani@ua141d10.elisa.omakaista.fi
+jani@ua72d24.elisa.omakaista.fi
 jcole@abel.spaceapes.com
 jcole@main.burghcom.com
 jcole@mugatu.spaceapes.com

client/mysqlbinlog.cc

@@ -480,7 +480,7 @@ static void die(const char* fmt, ...)
 
 static void print_version()
 {
-  printf("%s Ver 2.5 for %s at %s\n", my_progname, SYSTEM_TYPE, MACHINE_TYPE);
+  printf("%s Ver 2.6 for %s at %s\n", my_progname, SYSTEM_TYPE, MACHINE_TYPE);
 }
 
 
@@ -562,9 +562,12 @@ static int parse_args(int *argc, char*** argv)
 static MYSQL* safe_connect()
 {
   MYSQL *local_mysql = mysql_init(NULL);
+
   if(!local_mysql)
     die("Failed on mysql_init");
   
+  mysql_options(local_mysql, MYSQL_INIT_COMMAND,
+		"/*!32210 SET @@session.max_insert_delayed_threads=0*/");
   if (!mysql_real_connect(local_mysql, host, user, pass, 0, port, sock, 0))
     die("failed on connect: %s", mysql_error(local_mysql));
 

sql/mysql_priv.h

@@ -688,7 +688,7 @@ extern ulong ha_read_first_count, ha_read_last_count;
 extern ulong ha_read_rnd_count, ha_read_rnd_next_count;
 extern ulong ha_commit_count, ha_rollback_count,table_cache_size;
 extern ulong max_connections,max_connect_errors, connect_timeout;
-extern ulong max_insert_delayed_threads, max_user_connections;
+extern ulong max_user_connections;
 extern ulong long_query_count, what_to_log,flush_time,opt_sql_mode;
 extern ulong query_buff_size, thread_stack,thread_stack_min;
 extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;

sql/mysqld.cc

@@ -399,7 +399,7 @@ ulong select_range_check_count, select_range_count, select_scan_count;
 ulong select_full_range_join_count,select_full_join_count;
 ulong specialflag=0,opened_tables=0,created_tmp_tables=0,
       created_tmp_disk_tables=0;
-ulong max_connections,max_insert_delayed_threads,max_used_connections,
+ulong max_connections, max_used_connections,
       max_connect_errors, max_user_connections = 0;
 ulong thread_id=1L,current_pid;
 ulong slow_launch_threads = 0;
@@ -1726,7 +1726,8 @@ extern "C" void *signal_hand(void *arg __attribute__((unused)))
     This should actually be '+ max_number_of_slaves' instead of +10,
     but the +10 should be quite safe.
   */
-  init_thr_alarm(max_connections+max_insert_delayed_threads+10);
+  init_thr_alarm(max_connections +
+		 global_system_variables.max_insert_delayed_threads + 10);
 #if SIGINT != THR_KILL_SIGNAL
   if (test_flags & TEST_SIGINT)
   {
@@ -3896,7 +3897,8 @@ The minimum value for this variable is 4096.",
     REQUIRED_ARG, MAX_CONNECT_ERRORS, 1, ~0L, 0, 1, 0},
   {"max_delayed_threads", OPT_MAX_DELAYED_THREADS,
    "Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero, which means INSERT DELAYED is not used.",
-   (gptr*) &max_insert_delayed_threads, (gptr*) &max_insert_delayed_threads,
+   (gptr*) &global_system_variables.max_insert_delayed_threads,
+   (gptr*) &max_system_variables.max_insert_delayed_threads,
    0, GET_ULONG, REQUIRED_ARG, 20, 0, 16384, 0, 1, 0},
   {"max_heap_table_size", OPT_MAX_HEP_TABLE_SIZE,
    "Don't allow creation of heap tables bigger than this.",

sql/set_var.cc

@@ -155,8 +155,10 @@ sys_var_long_ptr	sys_max_connections("max_connections",
                                             fix_max_connections);
 sys_var_long_ptr	sys_max_connect_errors("max_connect_errors",
 					       &max_connect_errors);
-sys_var_long_ptr	sys_max_delayed_threads("max_delayed_threads",
-						&max_insert_delayed_threads,
+sys_var_thd_ulong       sys_max_insert_delayed_threads("max_insert_delayed_threads",
+						       &SV::max_insert_delayed_threads);
+sys_var_thd_ulong	sys_max_delayed_threads("max_delayed_threads",
+						&SV::max_insert_delayed_threads,
 						fix_max_connections);
 sys_var_thd_ulong	sys_max_heap_table_size("max_heap_table_size",
 						&SV::max_heap_table_size);
@@ -381,6 +383,7 @@ sys_var *sys_variables[]=
   &sys_max_connect_errors,
   &sys_max_connections,
   &sys_max_delayed_threads,
+  &sys_max_insert_delayed_threads,
   &sys_max_heap_table_size,
   &sys_max_join_size,
   &sys_max_relay_log_size,
@@ -771,7 +774,8 @@ static void fix_max_relay_log_size(THD *thd, enum_var_type type)
 
 static void fix_max_connections(THD *thd, enum_var_type type)
 {
-  resize_thr_alarm(max_connections + max_insert_delayed_threads + 10);
+  resize_thr_alarm(max_connections + 
+		   global_system_variables.max_insert_delayed_threads + 10);
 }
 
 

sql/sql_class.h

@@ -310,6 +310,7 @@ struct system_variables
   ulong max_heap_table_size;
   ulong max_sort_length;
   ulong max_tmp_tables;
+  ulong max_insert_delayed_threads;
   ulong myisam_repair_threads;
   ulong myisam_sort_buff_size;
   ulong net_buffer_length;

sql/sql_insert.cc

@@ -139,7 +139,7 @@ int mysql_insert(THD *thd,TABLE_LIST *table_list, List<Item> &fields,
    */
   if ((lock_type == TL_WRITE_DELAYED &&
        ((specialflag & (SPECIAL_NO_NEW_FUNC | SPECIAL_SAFE_MODE)) ||
-	thd->slave_thread || !max_insert_delayed_threads)) ||
+	thd->slave_thread || !thd->variables.max_insert_delayed_threads)) ||
       (lock_type == TL_WRITE_CONCURRENT_INSERT && duplic == DUP_REPLACE))
     lock_type=TL_WRITE;
 
@@ -655,7 +655,7 @@ static TABLE *delayed_get_table(THD *thd,TABLE_LIST *table_list)
   if (!(tmp=find_handler(thd,table_list)))
   {
     /* Don't create more than max_insert_delayed_threads */
-    if (delayed_insert_threads >= max_insert_delayed_threads)
+    if (delayed_insert_threads >= thd->variables.max_insert_delayed_threads)
       DBUG_RETURN(0);
     thd->proc_info="Creating delayed handler";
     pthread_mutex_lock(&LOCK_delayed_create);