updated

innobase/include/os0sync.h

@@ -163,7 +163,7 @@ os_fast_mutex_trylock(
 #endif
 /**************************************************************
 Releases ownership of a fast mutex. */
-UNIV_INLINE
+
 void
 os_fast_mutex_unlock(
 /*=================*/

innobase/include/os0sync.ic

@@ -40,17 +40,3 @@ os_fast_mutex_trylock(
 }
 #endif
 
-/**************************************************************
-Releases ownership of a fast mutex. */
-UNIV_INLINE
-void
-os_fast_mutex_unlock(
-/*=================*/
-	os_fast_mutex_t*	fast_mutex)	/* in: mutex to release */
-{
-#ifdef __WIN__
-	LeaveCriticalSection(fast_mutex);
-#else
-	pthread_mutex_unlock(fast_mutex);
-#endif
-}

innobase/include/srv0srv.h

@@ -66,6 +66,9 @@ extern char*    srv_unix_file_flush_method_str;
 extern ulint    srv_unix_file_flush_method;
 extern ulint	srv_force_recovery;
 extern ulint	srv_thread_concurrency;
+
+extern lint	srv_conc_n_threads;
+
 extern ibool	srv_fast_shutdown;
 
 extern ibool	srv_use_doublewrite_buf;

innobase/os/os0sync.c

@@ -454,6 +454,21 @@ os_fast_mutex_lock(
 #endif
 }
 
+/**************************************************************
+Releases ownership of a fast mutex. */
+
+void
+os_fast_mutex_unlock(
+/*=================*/
+	os_fast_mutex_t*	fast_mutex)	/* in: mutex to release */
+{
+#ifdef __WIN__
+	LeaveCriticalSection(fast_mutex);
+#else
+	pthread_mutex_unlock(fast_mutex);
+#endif
+}
+
 /**************************************************************
 Frees a mutex object. */
 

innobase/row/row0mysql.c

@@ -946,11 +946,27 @@ row_create_table_for_mysql(
 		"InnoDB: mysqld and edit my.cnf so that newraw is replaced\n"
 		"InnoDB: with raw, and innodb_force_... is removed.\n");
 
+		trx_commit_for_mysql(trx);
+
 		return(DB_ERROR);
 	}
 
 	trx->op_info = "creating table";
 
+	if (0 == ut_strcmp(table->name, "mysql/host")
+	    || 0 == ut_strcmp(table->name, "mysql/user")
+	    || 0 == ut_strcmp(table->name, "mysql/db")) {
+	    	
+		fprintf(stderr,
+    "InnoDB: Error: trying to create a MySQL system table %s of type InnoDB.\n"
+    "InnoDB: MySQL system tables must be of the MyISAM type!\n",
+		table->name);
+
+		trx_commit_for_mysql(trx);
+
+		return(DB_ERROR);
+	}
+
 	trx_start_if_not_started(trx);
 
 	namelen = ut_strlen(table->name);
@@ -1423,6 +1439,8 @@ row_drop_table_for_mysql(
 
 	que_graph_free(graph);
 	
+  	trx_commit_for_mysql(trx);
+
 	trx->op_info = "";
 
 	return((int) err);
@@ -1508,6 +1526,20 @@ row_rename_table_for_mysql(
 		"InnoDB: mysqld and edit my.cnf so that newraw is replaced\n"
 		"InnoDB: with raw, and innodb_force_... is removed.\n");
 
+  		trx_commit_for_mysql(trx);
+		return(DB_ERROR);
+	}
+
+	if (0 == ut_strcmp(new_name, "mysql/host")
+	    || 0 == ut_strcmp(new_name, "mysql/user")
+	    || 0 == ut_strcmp(new_name, "mysql/db")) {
+	    	
+		fprintf(stderr,
+    "InnoDB: Error: trying to create a MySQL system table %s of type InnoDB.\n"
+    "InnoDB: MySQL system tables must be of the MyISAM type!\n",
+		new_name);
+
+  		trx_commit_for_mysql(trx);
 		return(DB_ERROR);
 	}
 
@@ -1591,6 +1623,8 @@ row_rename_table_for_mysql(
 
 	que_graph_free(graph);
 	
+  	trx_commit_for_mysql(trx);
+
 	trx->op_info = "";
 
 	return((int) err);

innobase/srv/srv0srv.c

@@ -121,12 +121,17 @@ semaphore contention and convoy problems can occur withput this restriction.
 Value 10 should be good if there are less than 4 processors + 4 disks in the
 computer. Bigger computers need bigger values. */
 
-ulint	srv_thread_concurrency	= 4;
+ulint	srv_thread_concurrency	= 8;
 
 os_fast_mutex_t	srv_conc_mutex;		/* this mutex protects srv_conc data
 					structures */
-ulint	srv_conc_n_threads	= 0;	/* number of OS threads currently
-					inside InnoDB */
+lint	srv_conc_n_threads	= 0;	/* number of OS threads currently
+					inside InnoDB; it is not an error
+					if this drops temporarily below zero
+					because we do not demand that every
+					thread increments this, but a thread
+					waiting for a lock decrements this
+					temporarily */
 
 typedef struct srv_conc_slot_struct	srv_conc_slot_t;
 struct srv_conc_slot_struct{
@@ -1637,7 +1642,7 @@ srv_conc_enter_innodb(
 
 	os_fast_mutex_lock(&srv_conc_mutex);
 
-	if (srv_conc_n_threads < srv_thread_concurrency) {
+	if (srv_conc_n_threads < (lint)srv_thread_concurrency) {
 		srv_conc_n_threads++;
 
 		os_fast_mutex_unlock(&srv_conc_mutex);
@@ -1645,7 +1650,7 @@ srv_conc_enter_innodb(
 		return;
 	}
 	
-	/* Too many threads inside: put to the current thread to a queue */
+	/* Too many threads inside: put the current thread to a queue */
 
 	for (i = 0; i < OS_THREAD_MAX_N; i++) {
 		slot = srv_conc_slots + i;
@@ -1725,11 +1730,9 @@ srv_conc_exit_innodb(void)
 
 	os_fast_mutex_lock(&srv_conc_mutex);
 
-	ut_a(srv_conc_n_threads > 0);
-	
 	srv_conc_n_threads--;
 
-	if (srv_conc_n_threads < srv_thread_concurrency) {
+	if (srv_conc_n_threads < (lint)srv_thread_concurrency) {
 		/* Look for a slot where a thread is waiting and no other
 		thread has yet released the thread */
 	
@@ -1976,16 +1979,18 @@ srv_lock_timeout_and_monitor_thread(
 	void*	arg)	/* in: a dummy parameter required by
 			os_thread_create */
 {
+	srv_slot_t*	slot;
 	double		time_elapsed;
 	time_t          current_time;
 	time_t          last_monitor_time;
+	time_t          last_table_monitor_time;
 	ibool		some_waits;
-	srv_slot_t*	slot;
 	double		wait_time;
 	ulint		i;
 
 	UT_NOT_USED(arg);
 	last_monitor_time = time(NULL);
+	last_table_monitor_time = time(NULL);
 loop:
 	srv_lock_timeout_and_monitor_active = TRUE;
 
@@ -2047,7 +2052,7 @@ srv_lock_timeout_and_monitor_thread(
 		       "ROW OPERATIONS\n"
 		       "--------------\n");
 		printf(
-	"%lu queries inside InnoDB; main thread: %s\n",
+	"%ld queries inside InnoDB; main thread: %s\n",
 				srv_conc_n_threads, srv_main_thread_op_info);
 		printf(
 	"Number of rows inserted %lu, updated %lu, deleted %lu, read %lu\n",
@@ -2074,11 +2079,12 @@ srv_lock_timeout_and_monitor_thread(
 		printf("----------------------------\n"
 		       "END OF INNODB MONITOR OUTPUT\n"
 		       "============================\n");
-
-		
             }
 
-            if (srv_print_innodb_tablespace_monitor) {
+            if (srv_print_innodb_tablespace_monitor
+                && difftime(current_time, last_table_monitor_time) > 60) {
+
+		last_table_monitor_time = time(NULL);	
 
 		printf("================================================\n");
 
@@ -2096,7 +2102,10 @@ srv_lock_timeout_and_monitor_thread(
 	       		"=======================================\n");
 	    }
 
-	    if (srv_print_innodb_table_monitor) {
+	    if (srv_print_innodb_table_monitor
+                && difftime(current_time, last_table_monitor_time) > 60) {
+
+		last_table_monitor_time = time(NULL);	
 
 		printf("===========================================\n");
 
@@ -2200,6 +2209,12 @@ srv_error_monitor_thread(
 
 	sync_array_print_long_waits();
 
+	/* Flush stdout and stderr so that a database user gets their output
+	to possible MySQL error file */
+
+	fflush(stderr);
+	fflush(stdout);
+
 	if (srv_shutdown_state < SRV_SHUTDOWN_LAST_PHASE) {
 
 		goto loop;

innobase/srv/srv0start.c

@@ -996,6 +996,13 @@ innobase_shutdown_for_mysql(void)
 
 	logs_empty_and_mark_files_at_shutdown();
 	
+	if (srv_conc_n_threads != 0) {
+		fprintf(stderr,
+		"InnoDB: Warning: query counter shows %ld queries still\n"
+		"InnoDB: inside InnoDB at shutdown\n",
+		srv_conc_n_threads);
+	}
+	
 	ut_free_all_mem();
 	
 	return((int) DB_SUCCESS);

sql/ha_innobase.cc

@@ -1466,7 +1466,9 @@ ha_innobase::write_row(
 			The lock is released at each SQL statement's
 			end. */
 
+			srv_conc_enter_innodb(prebuilt->trx);
 			error = row_lock_table_autoinc_for_mysql(prebuilt);
+			srv_conc_exit_innodb();
 
 			if (error != DB_SUCCESS) {
 			
@@ -1517,7 +1519,9 @@ ha_innobase::write_row(
 
 	        	auto_inc = table->next_number_field->val_int();
 
+			srv_conc_enter_innodb(prebuilt->trx);
 			error = row_lock_table_autoinc_for_mysql(prebuilt);
+			srv_conc_exit_innodb();
 
 			if (error != DB_SUCCESS) {
 			
@@ -2799,6 +2803,8 @@ ha_innobase::delete_table(
 
 	srv_active_wake_master_thread();
 
+  	trx_commit_for_mysql(trx);
+
   	trx_free_for_mysql(trx);
 
 	error = convert_error_code_to_mysql(error);
@@ -2852,6 +2858,7 @@ innobase_drop_database(
 
 	srv_active_wake_master_thread();
 
+  	trx_commit_for_mysql(trx);
   	trx_free_for_mysql(trx);
 
 	error = convert_error_code_to_mysql(error);
@@ -2904,6 +2911,7 @@ ha_innobase::rename_table(
 
 	srv_active_wake_master_thread();
 
+  	trx_commit_for_mysql(trx);
   	trx_free_for_mysql(trx);
 
 	error = convert_error_code_to_mysql(error);