Merge 10.0 to 10.1

mysql-test/suite/innodb/r/drop_table_background.result

@@ -0,0 +1,9 @@
+CREATE TABLE t(c0 SERIAL, c1 INT, c2 INT, c3 INT, c4 INT,
+KEY(c1), KEY(c2), KEY(c2,c1),
+KEY(c3), KEY(c3,c1), KEY(c3,c2), KEY(c3,c2,c1),
+KEY(c4), KEY(c4,c1), KEY(c4,c2), KEY(c4,c2,c1),
+KEY(c4,c3), KEY(c4,c3,c1), KEY(c4,c3,c2), KEY(c4,c3,c2,c1)) ENGINE=InnoDB;
+SET DEBUG_DBUG='+d,row_drop_table_add_to_background';
+DROP TABLE t;
+CREATE TABLE t (a INT) ENGINE=InnoDB;
+DROP TABLE t;

mysql-test/suite/innodb/t/drop_table_background.test

@@ -0,0 +1,30 @@
+--source include/have_innodb.inc
+--source include/have_debug.inc
+# Embedded server does not support restarting
+--source include/not_embedded.inc
+
+CREATE TABLE t(c0 SERIAL, c1 INT, c2 INT, c3 INT, c4 INT,
+KEY(c1), KEY(c2), KEY(c2,c1),
+KEY(c3), KEY(c3,c1), KEY(c3,c2), KEY(c3,c2,c1),
+KEY(c4), KEY(c4,c1), KEY(c4,c2), KEY(c4,c2,c1),
+KEY(c4,c3), KEY(c4,c3,c1), KEY(c4,c3,c2), KEY(c4,c3,c2,c1)) ENGINE=InnoDB;
+
+let $n= 10;
+
+SET DEBUG_DBUG='+d,row_drop_table_add_to_background';
+--disable_query_log
+let $i= $n;
+while ($i) {
+  eval CREATE TABLE t$i LIKE t;
+  dec $i;
+}
+let $i= $n;
+while ($i) {
+  eval DROP TABLE t$i;
+  dec $i;
+}
+--enable_query_log
+DROP TABLE t;
+--source include/restart_mysqld.inc
+CREATE TABLE t (a INT) ENGINE=InnoDB;
+DROP TABLE t;

sql/CMakeLists.txt

@@ -60,15 +60,22 @@ SET_SOURCE_FILES_PROPERTIES(${GEN_SOURCES}
 
 # Gen_lex_token
 # Make sure sql_yacc.h is generated before compiling gen_lex_token
+
+IF(NOT CMAKE_GENERATOR MATCHES "Visual Studio")
+  SET(DEPENDS_gen_lex_token DEPENDS gen_lex_token)
+  SET(DEPENDS_gen_lex_hash DEPENDS gen_lex_hash)
+ENDIF()
+
+
 IF(NOT CMAKE_CROSSCOMPILING)
-  ADD_EXECUTABLE(gen_lex_token gen_lex_token.cc)
-  ADD_DEPENDENCIES(gen_lex_token GenServerSource)
+  ADD_EXECUTABLE(gen_lex_token gen_lex_token.cc
+    ${CMAKE_CURRENT_BINARY_DIR}/sql_yacc.h)
 ENDIF()
 
 ADD_CUSTOM_COMMAND(
   OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/lex_token.h
   COMMAND gen_lex_token > lex_token.h
-  DEPENDS gen_lex_token
+  ${DEPENDS_gen_lex_token}
 )
 
 ADD_DEFINITIONS(-DMYSQL_SERVER -DHAVE_EVENT_SCHEDULER)
@@ -323,7 +330,7 @@ ENDIF()
 ADD_CUSTOM_COMMAND(
   OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/lex_hash.h
   COMMAND gen_lex_hash > lex_hash.h
-  DEPENDS gen_lex_hash
+  ${DEPENDS_gen_lex_hash}
 )
 
 MYSQL_ADD_EXECUTABLE(mysql_tzinfo_to_sql tztime.cc COMPONENT Server)

storage/innobase/srv/srv0srv.cc

@@ -1835,7 +1835,7 @@ DECLARE_THREAD(srv_monitor_thread)(void*)
 		}
 	}
 
-	if (srv_shutdown_state >= SRV_SHUTDOWN_CLEANUP) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		goto exit_func;
 	}
 
@@ -1973,7 +1973,7 @@ DECLARE_THREAD(srv_error_monitor_thread)(void*)
 
 	os_event_wait_time_low(srv_error_event, 1000000, sig_count);
 
-	if (srv_shutdown_state < SRV_SHUTDOWN_CLEANUP) {
+	if (srv_shutdown_state == SRV_SHUTDOWN_NONE) {
 
 		goto loop;
 	}
@@ -2199,7 +2199,7 @@ srv_shutdown_print_master_pending(
 	time_elapsed = ut_difftime(current_time, *last_print_time);
 
 	if (time_elapsed > 60) {
-		*last_print_time = ut_time();
+		*last_print_time = current_time;
 
 		if (n_tables_to_drop) {
 			ut_print_timestamp(stderr);
@@ -2252,7 +2252,7 @@ srv_master_do_active_tasks(void)
 	MONITOR_INC_TIME_IN_MICRO_SECS(
 		MONITOR_SRV_BACKGROUND_DROP_TABLE_MICROSECOND, counter_time);
 
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2286,11 +2286,7 @@ srv_master_do_active_tasks(void)
 			MONITOR_SRV_MEM_VALIDATE_MICROSECOND, counter_time);
 	}
 #endif
-	if (srv_shutdown_state > 0) {
-		return;
-	}
-
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2303,7 +2299,7 @@ srv_master_do_active_tasks(void)
 			MONITOR_SRV_DICT_LRU_MICROSECOND, counter_time);
 	}
 
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2347,7 +2343,7 @@ srv_master_do_idle_tasks(void)
 		MONITOR_SRV_BACKGROUND_DROP_TABLE_MICROSECOND,
 			 counter_time);
 
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2363,7 +2359,7 @@ srv_master_do_idle_tasks(void)
 	MONITOR_INC_TIME_IN_MICRO_SECS(
 		MONITOR_SRV_IBUF_MERGE_MICROSECOND, counter_time);
 
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2379,7 +2375,7 @@ srv_master_do_idle_tasks(void)
 	MONITOR_INC_TIME_IN_MICRO_SECS(
 		MONITOR_SRV_LOG_FLUSH_MICROSECOND, counter_time);
 
-	if (srv_shutdown_state > 0) {
+	if (srv_shutdown_state != SRV_SHUTDOWN_NONE) {
 		return;
 	}
 
@@ -2390,70 +2386,42 @@ srv_master_do_idle_tasks(void)
 				       counter_time);
 }
 
-/*********************************************************************//**
-Perform the tasks during shutdown. The tasks that we do at shutdown
-depend on srv_fast_shutdown:
-2 => very fast shutdown => do no book keeping
-1 => normal shutdown => clear drop table queue and make checkpoint
-0 => slow shutdown => in addition to above do complete purge and ibuf
-merge
-@return TRUE if some work was done. FALSE otherwise */
+/** Perform shutdown tasks.
+@param[in]	ibuf_merge	whether to complete the change buffer merge */
 static
-ibool
-srv_master_do_shutdown_tasks(
-/*=========================*/
-	ib_time_t*	last_print_time)/*!< last time the function
-					print the message */
+void
+srv_shutdown(bool ibuf_merge)
 {
-	ulint		n_bytes_merged = 0;
-	ulint		n_tables_to_drop = 0;
-
-	ut_ad(!srv_read_only_mode);
-
-	++srv_main_shutdown_loops;
-
-	ut_a(srv_shutdown_state > 0);
-
-	/* In very fast shutdown none of the following is necessary */
-	if (srv_fast_shutdown == 2) {
-		return(FALSE);
-	}
-
-	/* ALTER TABLE in MySQL requires on Unix that the table handler
-	can drop tables lazily after there no longer are SELECT
-	queries to them. */
-	srv_main_thread_op_info = "doing background drop tables";
-	n_tables_to_drop = row_drop_tables_for_mysql_in_background();
-
-	/* make sure that there is enough reusable space in the redo
-	log files */
-	srv_main_thread_op_info = "checking free log space";
-	log_free_check();
+	ulint		n_bytes_merged	= 0;
+	ulint		n_tables_to_drop;
+	ib_time_t	now = ut_time();
 
-	/* In case of normal shutdown we don't do ibuf merge or purge */
-	if (srv_fast_shutdown == 1) {
-		goto func_exit;
-	}
-
-	/* Do an ibuf merge */
-	srv_main_thread_op_info = "doing insert buffer merge";
-	n_bytes_merged = ibuf_merge_in_background(true);
-
-	/* Flush logs if needed */
-	srv_sync_log_buffer_in_background();
-
-func_exit:
-	/* Make a new checkpoint about once in 10 seconds */
-	srv_main_thread_op_info = "making checkpoint";
-	log_checkpoint(TRUE, FALSE);
-
-	/* Print progress message every 60 seconds during shutdown */
-	if (srv_shutdown_state > 0 && srv_print_verbose_log) {
-		srv_shutdown_print_master_pending(
-			last_print_time, n_tables_to_drop, n_bytes_merged);
-	}
+	do {
+		ut_ad(!srv_read_only_mode);
+		ut_ad(srv_shutdown_state == SRV_SHUTDOWN_CLEANUP);
+		++srv_main_shutdown_loops;
+
+		/* FIXME: Remove the background DROP TABLE queue; it is not
+		crash-safe and breaks ACID. */
+		srv_main_thread_op_info = "doing background drop tables";
+		n_tables_to_drop = row_drop_tables_for_mysql_in_background();
+
+		if (ibuf_merge) {
+			srv_main_thread_op_info = "checking free log space";
+			log_free_check();
+			srv_main_thread_op_info = "doing insert buffer merge";
+			n_bytes_merged = ibuf_merge_in_background(true);
+
+			/* Flush logs if needed */
+			srv_sync_log_buffer_in_background();
+		}
 
-	return(n_bytes_merged || n_tables_to_drop);
+		/* Print progress message every 60 seconds during shutdown */
+		if (srv_print_verbose_log) {
+			srv_shutdown_print_master_pending(
+				&now, n_tables_to_drop, n_bytes_merged);
+		}
+	} while (n_bytes_merged || n_tables_to_drop);
 }
 
 /*********************************************************************//**
@@ -2485,7 +2453,6 @@ DECLARE_THREAD(srv_master_thread)(
 
 	srv_slot_t*	slot;
 	ulint		old_activity_count = srv_get_activity_count();
-	ib_time_t	last_print_time;
 
 	ut_ad(!srv_read_only_mode);
 
@@ -2504,7 +2471,6 @@ DECLARE_THREAD(srv_master_thread)(
 	slot = srv_reserve_slot(SRV_MASTER);
 	ut_a(slot == srv_sys.sys_threads);
 
-	last_print_time = ut_time();
 loop:
 	if (srv_force_recovery >= SRV_FORCE_NO_BACKGROUND) {
 		goto suspend_thread;
@@ -2524,13 +2490,26 @@ DECLARE_THREAD(srv_master_thread)(
 		}
 	}
 
-	while (srv_master_do_shutdown_tasks(&last_print_time)) {
-
-		/* Shouldn't loop here in case of very fast shutdown */
-		ut_ad(srv_fast_shutdown < 2);
+suspend_thread:
+	switch (srv_shutdown_state) {
+	case SRV_SHUTDOWN_NONE:
+		break;
+	case SRV_SHUTDOWN_FLUSH_PHASE:
+	case SRV_SHUTDOWN_LAST_PHASE:
+		ut_ad(0);
+		/* fall through */
+	case SRV_SHUTDOWN_EXIT_THREADS:
+		/* srv_init_abort() must have been invoked */
+	case SRV_SHUTDOWN_CLEANUP:
+		if (srv_shutdown_state == SRV_SHUTDOWN_CLEANUP
+		    && srv_fast_shutdown < 2) {
+			srv_shutdown(srv_fast_shutdown == 1);
+		}
+		srv_suspend_thread(slot);
+		my_thread_end();
+		os_thread_exit(NULL);
 	}
 
-suspend_thread:
 	srv_main_thread_op_info = "suspending";
 
 	srv_suspend_thread(slot);
@@ -2542,15 +2521,7 @@ DECLARE_THREAD(srv_master_thread)(
 	srv_main_thread_op_info = "waiting for server activity";
 
 	srv_resume_thread(slot);
-
-	if (srv_shutdown_state == SRV_SHUTDOWN_EXIT_THREADS) {
-		my_thread_end();
-		os_thread_exit(NULL);
-	}
-
 	goto loop;
-
-	OS_THREAD_DUMMY_RETURN;	/* Not reached, avoid compiler warning */
 }
 
 /*********************************************************************//**