Merge work:/home/bk/mysql-4.0 (d8d3fcd8) · Commits · Software / OSDI20 Artifacts / mariadb

Docs/manual.texi

+18 −903

File changed.

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innobase/include/srv0srv.h

+15 −1

Original line number	Diff line number	Diff line
		@@ -25,6 +25,7 @@ extern char* srv_arch_dir;
		extern ulint srv_n_data_files;
		extern char** srv_data_file_names;
		extern ulint* srv_data_file_sizes;
		extern ulint* srv_data_file_is_raw_partition;

		extern char** srv_log_group_home_dirs;

		@@ -103,13 +104,26 @@ typedef struct srv_sys_struct srv_sys_t;
		/* The server system */
		extern srv_sys_t* srv_sys;

		/* Alternatives for fiel flush option in Unix; see the InnoDB manual about
		/* Alternatives for file flush option in Unix; see the InnoDB manual about
		what these mean */
		#define SRV_UNIX_FDATASYNC 1
		#define SRV_UNIX_O_DSYNC 2
		#define SRV_UNIX_LITTLESYNC 3
		#define SRV_UNIX_NOSYNC 4

		/* Raw partition flags */
		#define SRV_OLD_RAW 1
		#define SRV_NEW_RAW 2

		void
		srv_mysql_thread_release(void);
		/==========================/
		os_event_t
		srv_mysql_thread_event_get(void);
		void
		srv_mysql_thread_slot_free(
		/==========================/
		os_event_t event);
		/*************************************************************************
		Boots Innobase server. */

innobase/row/row0sel.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -2537,7 +2537,10 @@ row_search_for_mysql(

		unique_search_from_clust_index = TRUE;

		if (trx->mysql_n_tables_locked == 0
		/* Disable this optimization (hence FALSE below) until
		the hang of Peter Zaitsev has been tracked down */

		if (FALSE && trx->mysql_n_tables_locked == 0
		&& !prebuilt->sql_stat_start) {

		/* This is a SELECT query done as a consistent read,

innobase/srv/srv0srv.c

+91 −1

Original line number	Diff line number	Diff line
		@@ -64,6 +64,8 @@ ulint srv_n_data_files = 0;
		char** srv_data_file_names = NULL;
		ulint* srv_data_file_sizes = NULL; /* size in database pages */

		ulint* srv_data_file_is_raw_partition = NULL;

		char** srv_log_group_home_dirs = NULL;

		ulint srv_n_log_groups = ULINT_MAX;
		@@ -1490,6 +1492,7 @@ srv_init(void)
		slot = srv_mysql_table + i;
		slot->in_use = FALSE;
		slot->event = os_event_create(NULL);
		slot->suspended = FALSE;
		ut_a(slot->event);
		}

		@@ -1658,6 +1661,7 @@ srv_suspend_mysql_thread(
		slot->thr = thr;

		os_event_reset(event);
		slot->suspended = TRUE;

		slot->suspend_time = ut_time();

		@@ -1689,6 +1693,27 @@ srv_suspend_mysql_thread(
		return(FALSE);
		}

		os_event_t
		srv_mysql_thread_event_get(void)
		{
		srv_slot_t* slot;
		os_event_t event;

		mutex_enter(&kernel_mutex);

		slot = srv_table_reserve_slot_for_mysql();

		event = slot->event;

		os_event_reset(event);

		slot->suspended = TRUE;

		mutex_exit(&kernel_mutex);

		return(event);
		}

		/************************************************************************
		Releases a MySQL OS thread waiting for a lock to be released, if the
		thread is already suspended. */
		@@ -1712,6 +1737,7 @@ srv_release_mysql_thread_if_suspended(
		/* Found */

		os_event_set(slot->event);
		slot->suspended = FALSE;

		return;
		}
		@@ -1720,6 +1746,59 @@ srv_release_mysql_thread_if_suspended(
		/* not found */
		}

		void
		srv_mysql_thread_release(void)
		/==========================/
		{
		srv_slot_t* slot;
		ulint i;

		mutex_enter(&kernel_mutex);

		for (i = 0; i < OS_THREAD_MAX_N; i++) {

		slot = srv_mysql_table + i;

		if (slot->in_use && slot->suspended) {
		/* Found */
		slot->suspended = FALSE;
		mutex_exit(&kernel_mutex);

		os_event_set(slot->event);

		return;
		}
		}

		ut_a(0);
		}

		void
		srv_mysql_thread_slot_free(
		/==========================/
		os_event_t event)
		{
		srv_slot_t* slot;
		ulint i;

		mutex_enter(&kernel_mutex);

		for (i = 0; i < OS_THREAD_MAX_N; i++) {

		slot = srv_mysql_table + i;

		if (slot->in_use && slot->event == event) {
		/* Found */
		slot->in_use = FALSE;
		mutex_exit(&kernel_mutex);

		return;
		}
		}

		ut_a(0);
		}

		/*************************************************************************
		A thread which wakes up threads whose lock wait may have lasted too long. */

		@@ -1907,6 +1986,11 @@ srv_master_thread(
		}

		background_loop:
		/*
		sync_array_print_info(sync_primary_wait_array);
		os_aio_print();
		buf_print_io();
		*/
		/* In this loop we run background operations while the server
		is quiet */

		@@ -1967,9 +2051,15 @@ srv_master_thread(
		}

		/* mem_print_new_info();
		*/

		fsp_print(0);
		/* fsp_print(0); */

		/* fprintf(stderr, "Validating tablespace\n");
		fsp_validate(0);
		fprintf(stderr, "Validation ok\n");
		*/

		#ifdef UNIV_SEARCH_PERF_STAT
		/* btr_search_print_info(); */
		#endif

innobase/srv/srv0start.c

+25 −4

Original line number	Diff line number	Diff line
		@@ -330,10 +330,28 @@ open_or_create_data_files(

		sprintf(name, "%s%s", srv_data_home, srv_data_file_names[i]);

		if (srv_data_file_is_raw_partition[i] == 0) {

		files[i] = os_file_create(name, OS_FILE_CREATE,
		OS_FILE_NORMAL, &ret);
		} else if (srv_data_file_is_raw_partition[i] == SRV_OLD_RAW) {
		ret = FALSE;
		} else if (srv_data_file_is_raw_partition[i] == SRV_NEW_RAW) {

		files[i] = os_file_create(
		name, OS_FILE_OPEN, OS_FILE_NORMAL, &ret);

		if (!ret) {
		fprintf(stderr,
		"InnoDB: Error in opening %s\n", name);

		return(DB_ERROR);
		}
		}

		if (ret == FALSE) {
		if (os_file_get_last_error() !=
		if (srv_data_file_is_raw_partition[i] == 0
		&& os_file_get_last_error() !=
		OS_FILE_ALREADY_EXISTS) {
		fprintf(stderr,
		"InnoDB: Error in creating or opening %s\n",
		@@ -364,8 +382,10 @@ open_or_create_data_files(
		ret = os_file_get_size(files[i], &size, &size_high);
		ut_a(ret);

		if (size != UNIV_PAGE_SIZE * srv_data_file_sizes[i]
		\|\| size_high != 0) {
		if (srv_data_file_is_raw_partition[i] == 0
		&& (size != UNIV_PAGE_SIZE * srv_data_file_sizes[i]
		\|\| size_high != 0)) {

		fprintf(stderr,
		"InnoDB: Error: data file %s is of different size\n"
		"InnoDB: than specified in the .cnf file!\n", name);
		@@ -722,6 +742,7 @@ innobase_start_or_create_for_mysql(void)
		mutex_exit(&(log_sys->mutex));
		}

		/* mutex_create(&row_mysql_thread_mutex); */
		sess_sys_init_at_db_start();

		if (create_new_db) {