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mariadb/innobase/srv/srv0start.c
unknown cde615c9cb InnoDB: Avoid test suite failures caused by a locking conflict 
between two server instances at server shutdown/startup.
This conflict on advisory locks appears to be the result of a bug
in the operating system; these locks should be released when the
files are closed, but somehow that does not always happen
immediately in Linux.  (Bug #9381)


innobase/include/os0file.h:
  Add OS_FILE_OPEN_RETRY for os_file_create()ing ibdata1
innobase/os/os0file.c:
  os_file_lock(): Do not close the file on failure, but let the
  callers do that.
  os_file_create(): If create_mode==OS_FILE_OPEN_RETRY and
  os_file_lock() fails, keep retrying for 100 seconds.
innobase/srv/srv0start.c:
  open_or_create_data_files(): Open the first data file with
  OS_FILE_OPEN_RETRY, to resolve a conflict with a shutting-down
  instance of the MySQL server.
2005-04-06 15:09:15 +03:00

1858 lines
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/************************************************************************
Starts the InnoDB database server
(c) 1996-2000 Innobase Oy
Created 2/16/1996 Heikki Tuuri
*************************************************************************/
#include "os0proc.h"
#include "sync0sync.h"
#include "ut0mem.h"
#include "mem0mem.h"
#include "mem0pool.h"
#include "data0data.h"
#include "data0type.h"
#include "dict0dict.h"
#include "buf0buf.h"
#include "buf0flu.h"
#include "buf0rea.h"
#include "os0file.h"
#include "os0thread.h"
#include "fil0fil.h"
#include "fsp0fsp.h"
#include "rem0rec.h"
#include "rem0cmp.h"
#include "mtr0mtr.h"
#include "log0log.h"
#include "log0recv.h"
#include "page0page.h"
#include "page0cur.h"
#include "trx0trx.h"
#include "dict0boot.h"
#include "dict0load.h"
#include "trx0sys.h"
#include "dict0crea.h"
#include "btr0btr.h"
#include "btr0pcur.h"
#include "btr0cur.h"
#include "btr0sea.h"
#include "rem0rec.h"
#include "srv0srv.h"
#include "que0que.h"
#include "usr0sess.h"
#include "lock0lock.h"
#include "trx0roll.h"
#include "trx0purge.h"
#include "row0ins.h"
#include "row0sel.h"
#include "row0upd.h"
#include "row0row.h"
#include "row0mysql.h"
#include "lock0lock.h"
#include "ibuf0ibuf.h"
#include "pars0pars.h"
#include "btr0sea.h"
#include "srv0start.h"
#include "que0que.h"
/* Log sequence number immediately after startup */
dulint srv_start_lsn;
/* Log sequence number at shutdown */
dulint srv_shutdown_lsn;
#ifdef HAVE_DARWIN_THREADS
# include <sys/utsname.h>
ibool srv_have_fullfsync = FALSE;
#endif
ibool srv_start_raw_disk_in_use = FALSE;
static ibool srv_start_has_been_called = FALSE;
ulint srv_sizeof_trx_t_in_ha_innodb_cc;
ibool srv_startup_is_before_trx_rollback_phase = FALSE;
ibool srv_is_being_started = FALSE;
static ibool srv_was_started = FALSE;
/* At a shutdown the value first climbs to SRV_SHUTDOWN_CLEANUP
and then to SRV_SHUTDOWN_LAST_PHASE */
ulint srv_shutdown_state = 0;
ibool measure_cont = FALSE;
static os_file_t files[1000];
static mutex_t ios_mutex;
static ulint ios;
static ulint n[SRV_MAX_N_IO_THREADS + 5];
static os_thread_id_t thread_ids[SRV_MAX_N_IO_THREADS + 5];
/* We use this mutex to test the return value of pthread_mutex_trylock
on successful locking. HP-UX does NOT return 0, though Linux et al do. */
static os_fast_mutex_t srv_os_test_mutex;
/* Name of srv_monitor_file */
static char* srv_monitor_file_name;
#define SRV_N_PENDING_IOS_PER_THREAD OS_AIO_N_PENDING_IOS_PER_THREAD
#define SRV_MAX_N_PENDING_SYNC_IOS 100
/* Avoid warnings when using purify */
#ifdef HAVE_purify
static int inno_bcmp(register const char *s1, register const char *s2,
register uint len)
{
while (len-- != 0 && *s1++ == *s2++) ;
return len+1;
}
#define memcmp(A,B,C) inno_bcmp((A),(B),(C))
#endif
/*************************************************************************
Reads the data files and their sizes from a character string given in
the .cnf file. */
ibool
srv_parse_data_file_paths_and_sizes(
/*================================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: the data file path string */
char*** data_file_names, /* out, own: array of data file
names */
ulint** data_file_sizes, /* out, own: array of data file sizes
in megabytes */
ulint** data_file_is_raw_partition,/* out, own: array of flags
showing which data files are raw
partitions */
ulint* n_data_files, /* out: number of data files */
ibool* is_auto_extending, /* out: TRUE if the last data file is
auto-extending */
ulint* max_auto_extend_size) /* out: max auto extend size for the
last file if specified, 0 if not */
{
char* input_str;
char* endp;
char* path;
ulint size;
ulint i = 0;
*is_auto_extending = FALSE;
*max_auto_extend_size = 0;
input_str = str;
/* First calculate the number of data files and check syntax:
path:size[M | G];path:size[M | G]... . Note that a Windows path may
contain a drive name and a ':'. */
while (*str != '\0') {
path = str;
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'
|| *(str + 1) == ':'))) {
str++;
}
if (*str == '\0') {
return(FALSE);
}
str++;
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
if (0 == memcmp(str, ":autoextend", (sizeof ":autoextend") - 1)) {
str += (sizeof ":autoextend") - 1;
if (0 == memcmp(str, ":max:", (sizeof ":max:") - 1)) {
str += (sizeof ":max:") - 1;
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
}
if (*str != '\0') {
return(FALSE);
}
}
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
}
if (*str == 'r' && *(str + 1) == 'a' && *(str + 2) == 'w') {
str += 3;
}
if (size == 0) {
return(FALSE);
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
*data_file_names = (char**)ut_malloc(i * sizeof(void*));
*data_file_sizes = (ulint*)ut_malloc(i * sizeof(ulint));
*data_file_is_raw_partition = (ulint*)ut_malloc(i * sizeof(ulint));
*n_data_files = i;
/* Then store the actual values to our arrays */
str = input_str;
i = 0;
while (*str != '\0') {
path = str;
/* Note that we must step over the ':' in a Windows path;
a Windows path normally looks like C:\ibdata\ibdata1:1G, but
a Windows raw partition may have a specification like
\\.\C::1Gnewraw or \\.\PHYSICALDRIVE2:1Gnewraw */
while ((*str != ':' && *str != '\0')
|| (*str == ':'
&& (*(str + 1) == '\\' || *(str + 1) == '/'
|| *(str + 1) == ':'))) {
str++;
}
if (*str == ':') {
/* Make path a null-terminated string */
*str = '\0';
str++;
}
size = strtoul(str, &endp, 10);
str = endp;
if ((*str != 'M') && (*str != 'G')) {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
(*data_file_names)[i] = path;
(*data_file_sizes)[i] = size;
if (0 == memcmp(str, ":autoextend", (sizeof ":autoextend") - 1)) {
*is_auto_extending = TRUE;
str += (sizeof ":autoextend") - 1;
if (0 == memcmp(str, ":max:", (sizeof ":max:") - 1)) {
str += (sizeof ":max:") - 1;
size = strtoul(str, &endp, 10);
str = endp;
if (*str != 'M' && *str != 'G') {
size = size / (1024 * 1024);
} else if (*str == 'G') {
size = size * 1024;
str++;
} else {
str++;
}
*max_auto_extend_size = size;
}
if (*str != '\0') {
return(FALSE);
}
}
(*data_file_is_raw_partition)[i] = 0;
if (strlen(str) >= 6
&& *str == 'n'
&& *(str + 1) == 'e'
&& *(str + 2) == 'w') {
str += 3;
(*data_file_is_raw_partition)[i] = SRV_NEW_RAW;
}
if (*str == 'r' && *(str + 1) == 'a' && *(str + 2) == 'w') {
str += 3;
if ((*data_file_is_raw_partition)[i] == 0) {
(*data_file_is_raw_partition)[i] = SRV_OLD_RAW;
}
}
i++;
if (*str == ';') {
str++;
}
}
return(TRUE);
}
/*************************************************************************
Reads log group home directories from a character string given in
the .cnf file. */
ibool
srv_parse_log_group_home_dirs(
/*==========================*/
/* out: TRUE if ok, FALSE if parsing
error */
char* str, /* in: character string */
char*** log_group_home_dirs) /* out, own: log group home dirs */
{
char* input_str;
char* path;
ulint i = 0;
input_str = str;
/* First calculate the number of directories and check syntax:
path;path;... */
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
i++;
if (*str == ';') {
str++;
} else if (*str != '\0') {
return(FALSE);
}
}
*log_group_home_dirs = (char**) ut_malloc(i * sizeof(void*));
/* Then store the actual values to our array */
str = input_str;
i = 0;
while (*str != '\0') {
path = str;
while (*str != ';' && *str != '\0') {
str++;
}
if (*str == ';') {
*str = '\0';
str++;
}
(*log_group_home_dirs)[i] = path;
i++;
}
return(TRUE);
}
/************************************************************************
I/o-handler thread function. */
static
#ifndef __WIN__
void*
#else
ulint
#endif
io_handler_thread(
/*==============*/
void* arg)
{
ulint segment;
ulint i;
segment = *((ulint*)arg);
#ifdef UNIV_DEBUG_THREAD_CREATION
fprintf(stderr, "Io handler thread %lu starts, id %lu\n", segment,
os_thread_pf(os_thread_get_curr_id()));
#endif
for (i = 0;; i++) {
fil_aio_wait(segment);
mutex_enter(&ios_mutex);
ios++;
mutex_exit(&ios_mutex);
}
/* We count the number of threads in os_thread_exit(). A created
thread should always use that to exit and not use return() to exit.
The thread actually never comes here because it is exited in an
os_event_wait(). */
os_thread_exit(NULL);
#ifndef __WIN__
return(NULL); /* Not reached */
#else
return(0);
#endif
}
#ifdef __WIN__
#define SRV_PATH_SEPARATOR '\\'
#else
#define SRV_PATH_SEPARATOR '/'
#endif
/*************************************************************************
Normalizes a directory path for Windows: converts slashes to backslashes. */
void
srv_normalize_path_for_win(
/*=======================*/
char* str __attribute__((unused))) /* in/out: null-terminated
character string */
{
#ifdef __WIN__
for (; *str; str++) {
if (*str == '/') {
*str = '\\';
}
}
#endif
}
/*************************************************************************
Adds a slash or a backslash to the end of a string if it is missing
and the string is not empty. */
static
char*
srv_add_path_separator_if_needed(
/*=============================*/
/* out: string which has the separator if the
string is not empty */
char* str) /* in: null-terminated character string */
{
char* out_str;
ulint len = ut_strlen(str);
if (len == 0 || str[len - 1] == SRV_PATH_SEPARATOR) {
return(str);
}
out_str = ut_malloc(len + 2);
memcpy(out_str, str, len);
out_str[len] = SRV_PATH_SEPARATOR;
out_str[len + 1] = 0;
return(out_str);
}
/*************************************************************************
Calculates the low 32 bits when a file size which is given as a number
database pages is converted to the number of bytes. */
static
ulint
srv_calc_low32(
/*===========*/
/* out: low 32 bytes of file size when
expressed in bytes */
ulint file_size) /* in: file size in database pages */
{
return(0xFFFFFFFFUL & (file_size << UNIV_PAGE_SIZE_SHIFT));
}
/*************************************************************************
Calculates the high 32 bits when a file size which is given as a number
database pages is converted to the number of bytes. */
static
ulint
srv_calc_high32(
/*============*/
/* out: high 32 bytes of file size when
expressed in bytes */
ulint file_size) /* in: file size in database pages */
{
return(file_size >> (32 - UNIV_PAGE_SIZE_SHIFT));
}
/*************************************************************************
Creates or opens the log files and closes them. */
static
ulint
open_or_create_log_file(
/*====================*/
/* out: DB_SUCCESS or error code */
ibool create_new_db, /* in: TRUE if we should create a
new database */
ibool* log_file_created, /* out: TRUE if new log file
created */
ibool log_file_has_been_opened,/* in: TRUE if a log file has been
opened before: then it is an error
to try to create another log file */
ulint k, /* in: log group number */
ulint i) /* in: log file number in group */
{
ibool ret;
ulint size;
ulint size_high;
char name[10000];
UT_NOT_USED(create_new_db);
*log_file_created = FALSE;
srv_normalize_path_for_win(srv_log_group_home_dirs[k]);
srv_log_group_home_dirs[k] = srv_add_path_separator_if_needed(
srv_log_group_home_dirs[k]);
ut_a(strlen(srv_log_group_home_dirs[k]) <
(sizeof name) - 10 - sizeof "ib_logfile");
sprintf(name, "%s%s%lu", srv_log_group_home_dirs[k], "ib_logfile", (ulong) i);
files[i] = os_file_create(name, OS_FILE_CREATE, OS_FILE_NORMAL,
OS_LOG_FILE, &ret);
if (ret == FALSE) {
if (os_file_get_last_error(FALSE) != OS_FILE_ALREADY_EXISTS
#ifdef UNIV_AIX
/* AIX 5.1 after security patch ML7 may have errno set
to 0 here, which causes our function to return 100;
work around that AIX problem */
&& os_file_get_last_error(FALSE) != 100
#endif
) {
fprintf(stderr,
"InnoDB: Error in creating or opening %s\n", name);
return(DB_ERROR);
}
files[i] = os_file_create(name, OS_FILE_OPEN, OS_FILE_AIO,
OS_LOG_FILE, &ret);
if (!ret) {
fprintf(stderr,
"InnoDB: Error in opening %s\n", name);
return(DB_ERROR);
}
ret = os_file_get_size(files[i], &size, &size_high);
ut_a(ret);
if (size != srv_calc_low32(srv_log_file_size)
|| size_high != srv_calc_high32(srv_log_file_size)) {
fprintf(stderr,
"InnoDB: Error: log file %s is of different size %lu %lu bytes\n"
"InnoDB: than specified in the .cnf file %lu %lu bytes!\n",
name, (ulong) size_high, (ulong) size,
(ulong) srv_calc_high32(srv_log_file_size),
(ulong) srv_calc_low32(srv_log_file_size));
return(DB_ERROR);
}
} else {
*log_file_created = TRUE;
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Log file %s did not exist: new to be created\n",
name);
if (log_file_has_been_opened) {
return(DB_ERROR);
}
fprintf(stderr, "InnoDB: Setting log file %s size to %lu MB\n",
name, (ulong) srv_log_file_size
>> (20 - UNIV_PAGE_SIZE_SHIFT));
fprintf(stderr,
"InnoDB: Database physically writes the file full: wait...\n");
ret = os_file_set_size(name, files[i],
srv_calc_low32(srv_log_file_size),
srv_calc_high32(srv_log_file_size));
if (!ret) {
fprintf(stderr,
"InnoDB: Error in creating %s: probably out of disk space\n",
name);
return(DB_ERROR);
}
}
ret = os_file_close(files[i]);
ut_a(ret);
if (i == 0) {
/* Create in memory the file space object
which is for this log group */
fil_space_create(name,
2 * k + SRV_LOG_SPACE_FIRST_ID, FIL_LOG);
}
ut_a(fil_validate());
fil_node_create(name, srv_log_file_size,
2 * k + SRV_LOG_SPACE_FIRST_ID, FALSE);
#ifdef UNIV_LOG_ARCHIVE
/* If this is the first log group, create the file space object
for archived logs.
Under MySQL, no archiving ever done. */
if (k == 0 && i == 0) {
arch_space_id = 2 * k + 1 + SRV_LOG_SPACE_FIRST_ID;
fil_space_create("arch_log_space", arch_space_id, FIL_LOG);
} else {
arch_space_id = ULINT_UNDEFINED;
}
#endif /* UNIV_LOG_ARCHIVE */
if (i == 0) {
log_group_init(k, srv_n_log_files,
srv_log_file_size * UNIV_PAGE_SIZE,
2 * k + SRV_LOG_SPACE_FIRST_ID,
SRV_LOG_SPACE_FIRST_ID + 1); /* dummy arch
space id */
}
return(DB_SUCCESS);
}
/*************************************************************************
Creates or opens database data files and closes them. */
static
ulint
open_or_create_data_files(
/*======================*/
/* out: DB_SUCCESS or error code */
ibool* create_new_db, /* out: TRUE if new database should be
created */
#ifdef UNIV_LOG_ARCHIVE
ulint* min_arch_log_no,/* out: min of archived log numbers in data
files */
ulint* max_arch_log_no,/* out: */
#endif /* UNIV_LOG_ARCHIVE */
dulint* min_flushed_lsn,/* out: min of flushed lsn values in data
files */
dulint* max_flushed_lsn,/* out: */
ulint* sum_of_new_sizes)/* out: sum of sizes of the new files added */
{
ibool ret;
ulint i;
ibool one_opened = FALSE;
ibool one_created = FALSE;
ulint size;
ulint size_high;
ulint rounded_size_pages;
char name[10000];
if (srv_n_data_files >= 1000) {
fprintf(stderr, "InnoDB: can only have < 1000 data files\n"
"InnoDB: you have defined %lu\n",
(ulong) srv_n_data_files);
return(DB_ERROR);
}
*sum_of_new_sizes = 0;
*create_new_db = FALSE;
srv_normalize_path_for_win(srv_data_home);
srv_data_home = srv_add_path_separator_if_needed(srv_data_home);
for (i = 0; i < srv_n_data_files; i++) {
srv_normalize_path_for_win(srv_data_file_names[i]);
ut_a(strlen(srv_data_home) + strlen(srv_data_file_names[i])
< (sizeof name) - 1);
sprintf(name, "%s%s", srv_data_home, srv_data_file_names[i]);
if (srv_data_file_is_raw_partition[i] == 0) {
/* First we try to create the file: if it already
exists, ret will get value FALSE */
files[i] = os_file_create(name, OS_FILE_CREATE,
OS_FILE_NORMAL, OS_DATA_FILE, &ret);
if (ret == FALSE && os_file_get_last_error(FALSE) !=
OS_FILE_ALREADY_EXISTS
#ifdef UNIV_AIX
/* AIX 5.1 after security patch ML7 may have
errno set to 0 here, which causes our function
to return 100; work around that AIX problem */
&& os_file_get_last_error(FALSE) != 100
#endif
) {
fprintf(stderr,
"InnoDB: Error in creating or opening %s\n",
name);
return(DB_ERROR);
}
} else if (srv_data_file_is_raw_partition[i] == SRV_NEW_RAW) {
/* The partition is opened, not created; then it is
written over */
srv_start_raw_disk_in_use = TRUE;
srv_created_new_raw = TRUE;
files[i] = os_file_create(
name, OS_FILE_OPEN_RAW, OS_FILE_NORMAL,
OS_DATA_FILE, &ret);
if (!ret) {
fprintf(stderr,
"InnoDB: Error in opening %s\n", name);
return(DB_ERROR);
}
} else if (srv_data_file_is_raw_partition[i] == SRV_OLD_RAW) {
srv_start_raw_disk_in_use = TRUE;
ret = FALSE;
} else {
ut_a(0);
}
if (ret == FALSE) {
/* We open the data file */
if (one_created) {
fprintf(stderr,
"InnoDB: Error: data files can only be added at the end\n");
fprintf(stderr,
"InnoDB: of a tablespace, but data file %s existed beforehand.\n",
name);
return(DB_ERROR);
}
if (srv_data_file_is_raw_partition[i] == SRV_OLD_RAW) {
files[i] = os_file_create(
name, OS_FILE_OPEN_RAW, OS_FILE_NORMAL,
OS_DATA_FILE, &ret);
} else if (i == 0) {
files[i] = os_file_create(
name, OS_FILE_OPEN_RETRY,
OS_FILE_NORMAL,
OS_DATA_FILE, &ret);
} else {
files[i] = os_file_create(
name, OS_FILE_OPEN, OS_FILE_NORMAL,
OS_DATA_FILE, &ret);
}
if (!ret) {
fprintf(stderr,
"InnoDB: Error in opening %s\n", name);
os_file_get_last_error(TRUE);
return(DB_ERROR);
}
if (srv_data_file_is_raw_partition[i] == SRV_OLD_RAW) {
goto skip_size_check;
}
ret = os_file_get_size(files[i], &size, &size_high);
ut_a(ret);
/* Round size downward to megabytes */
rounded_size_pages = (size / (1024 * 1024)
+ 4096 * size_high)
<< (20 - UNIV_PAGE_SIZE_SHIFT);
if (i == srv_n_data_files - 1
&& srv_auto_extend_last_data_file) {
if (srv_data_file_sizes[i] >
rounded_size_pages
|| (srv_last_file_size_max > 0
&& srv_last_file_size_max <
rounded_size_pages)) {
fprintf(stderr,
"InnoDB: Error: auto-extending data file %s is of a different size\n"
"InnoDB: %lu pages (rounded down to MB) than specified in the .cnf file:\n"
"InnoDB: initial %lu pages, max %lu (relevant if non-zero) pages!\n",
name, (ulong) rounded_size_pages,
(ulong) srv_data_file_sizes[i],
(ulong) srv_last_file_size_max);
return(DB_ERROR);
}
srv_data_file_sizes[i] = rounded_size_pages;
}
if (rounded_size_pages != srv_data_file_sizes[i]) {
fprintf(stderr,
"InnoDB: Error: data file %s is of a different size\n"
"InnoDB: %lu pages (rounded down to MB)\n"
"InnoDB: than specified in the .cnf file %lu pages!\n", name,
(ulong) rounded_size_pages,
(ulong) srv_data_file_sizes[i]);
return(DB_ERROR);
}
skip_size_check:
fil_read_flushed_lsn_and_arch_log_no(files[i],
one_opened,
#ifdef UNIV_LOG_ARCHIVE
min_arch_log_no, max_arch_log_no,
#endif /* UNIV_LOG_ARCHIVE */
min_flushed_lsn, max_flushed_lsn);
one_opened = TRUE;
} else {
/* We created the data file and now write it full of
zeros */
one_created = TRUE;
if (i > 0) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Data file %s did not exist: new to be created\n",
name);
} else {
fprintf(stderr,
"InnoDB: The first specified data file %s did not exist:\n"
"InnoDB: a new database to be created!\n", name);
*create_new_db = TRUE;
}
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Setting file %s size to %lu MB\n",
name, (ulong) (srv_data_file_sizes[i]
>> (20 - UNIV_PAGE_SIZE_SHIFT)));
fprintf(stderr,
"InnoDB: Database physically writes the file full: wait...\n");
ret = os_file_set_size(name, files[i],
srv_calc_low32(srv_data_file_sizes[i]),
srv_calc_high32(srv_data_file_sizes[i]));
if (!ret) {
fprintf(stderr,
"InnoDB: Error in creating %s: probably out of disk space\n", name);
return(DB_ERROR);
}
*sum_of_new_sizes = *sum_of_new_sizes
+ srv_data_file_sizes[i];
}
ret = os_file_close(files[i]);
ut_a(ret);
if (i == 0) {
fil_space_create(name, 0, FIL_TABLESPACE);
}
ut_a(fil_validate());
if (srv_data_file_is_raw_partition[i]) {
fil_node_create(name, srv_data_file_sizes[i], 0, TRUE);
} else {
fil_node_create(name, srv_data_file_sizes[i], 0,
FALSE);
}
}
ios = 0;
mutex_create(&ios_mutex);
mutex_set_level(&ios_mutex, SYNC_NO_ORDER_CHECK);
return(DB_SUCCESS);
}
/********************************************************************
Starts InnoDB and creates a new database if database files
are not found and the user wants. Server parameters are
read from a file of name "srv_init" in the ib_home directory. */
int
innobase_start_or_create_for_mysql(void)
/*====================================*/
/* out: DB_SUCCESS or error code */
{
buf_pool_t* ret;
ibool create_new_db;
ibool log_file_created;
ibool log_created = FALSE;
ibool log_opened = FALSE;
dulint min_flushed_lsn;
dulint max_flushed_lsn;
#ifdef UNIV_LOG_ARCHIVE
ulint min_arch_log_no;
ulint max_arch_log_no;
#endif /* UNIV_LOG_ARCHIVE */
ulint sum_of_new_sizes;
ulint sum_of_data_file_sizes;
ulint tablespace_size_in_header;
ulint err;
ulint i;
ibool srv_file_per_table_original_value = srv_file_per_table;
mtr_t mtr;
#ifdef HAVE_DARWIN_THREADS
# ifdef F_FULLFSYNC
/* This executable has been compiled on Mac OS X 10.3 or later.
Assume that F_FULLFSYNC is available at run-time. */
srv_have_fullfsync = TRUE;
# else /* F_FULLFSYNC */
/* This executable has been compiled on Mac OS X 10.2
or earlier. Determine if the executable is running
on Mac OS X 10.3 or later. */
struct utsname utsname;
if (uname(&utsname)) {
fputs("InnoDB: cannot determine Mac OS X version!\n", stderr);
} else {
srv_have_fullfsync = strcmp(utsname.release, "7.") >= 0;
}
if (!srv_have_fullfsync) {
fputs(
"InnoDB: On Mac OS X, fsync() may be broken on internal drives,\n"
"InnoDB: making transactions unsafe!\n", stderr);
}
# endif /* F_FULLFSYNC */
#endif /* HAVE_DARWIN_THREADS */
if (sizeof(ulint) != sizeof(void*)) {
fprintf(stderr,
"InnoDB: Error: size of InnoDB's ulint is %lu, but size of void* is %lu.\n"
"InnoDB: The sizes should be the same so that on a 64-bit platform you can\n"
"InnoDB: allocate more than 4 GB of memory.",
(ulong)sizeof(ulint), (ulong)sizeof(void*));
}
srv_file_per_table = FALSE; /* system tables are created in tablespace
0 */
#ifdef UNIV_DEBUG
fprintf(stderr,
"InnoDB: !!!!!!!!!!!!!! UNIV_DEBUG switched on !!!!!!!!!!!!!!!\n");
#endif
#ifdef UNIV_SYNC_DEBUG
fprintf(stderr,
"InnoDB: !!!!!!!!!!!!!! UNIV_SYNC_DEBUG switched on !!!!!!!!!!!!!!!\n");
#endif
#ifdef UNIV_SEARCH_DEBUG
fprintf(stderr,
"InnoDB: !!!!!!!!!!!!!! UNIV_SEARCH_DEBUG switched on !!!!!!!!!!!!!!!\n");
#endif
#ifdef UNIV_MEM_DEBUG
fprintf(stderr,
"InnoDB: !!!!!!!!!!!!!! UNIV_MEM_DEBUG switched on !!!!!!!!!!!!!!!\n");
#endif
#ifdef UNIV_SIMULATE_AWE
fprintf(stderr,
"InnoDB: !!!!!!!!!!!!!! UNIV_SIMULATE_AWE switched on !!!!!!!!!!!!!!!!!\n");
#endif
if (srv_sizeof_trx_t_in_ha_innodb_cc != (ulint)sizeof(trx_t)) {
fprintf(stderr,
"InnoDB: Error: trx_t size is %lu in ha_innodb.cc but %lu in srv0start.c\n"
"InnoDB: Check that pthread_mutex_t is defined in the same way in these\n"
"InnoDB: compilation modules. Cannot continue.\n",
(ulong) srv_sizeof_trx_t_in_ha_innodb_cc,
(ulong) sizeof(trx_t));
return(DB_ERROR);
}
/* Since InnoDB does not currently clean up all its internal data
structures in MySQL Embedded Server Library server_end(), we
print an error message if someone tries to start up InnoDB a
second time during the process lifetime. */
if (srv_start_has_been_called) {
fprintf(stderr,
"InnoDB: Error:startup called second time during the process lifetime.\n"
"InnoDB: In the MySQL Embedded Server Library you cannot call server_init()\n"
"InnoDB: more than once during the process lifetime.\n");
}
srv_start_has_been_called = TRUE;
log_do_write = TRUE;
/* yydebug = TRUE; */
srv_is_being_started = TRUE;
srv_startup_is_before_trx_rollback_phase = TRUE;
os_aio_use_native_aio = FALSE;
#if !defined(__WIN2000__) && !defined(UNIV_SIMULATE_AWE)
if (srv_use_awe) {
fprintf(stderr,
"InnoDB: Error: You have specified innodb_buffer_pool_awe_mem_mb\n"
"InnoDB: in my.cnf, but AWE can only be used in Windows 2000 and later.\n");
return(DB_ERROR);
}
#endif
#ifdef __WIN__
if (os_get_os_version() == OS_WIN95
|| os_get_os_version() == OS_WIN31
|| os_get_os_version() == OS_WINNT) {
/* On Win 95, 98, ME, Win32 subsystem for Windows 3.1,
and NT use simulated aio. In NT Windows provides async i/o,
but when run in conjunction with InnoDB Hot Backup, it seemed
to corrupt the data files. */
os_aio_use_native_aio = FALSE;
} else {
/* On Win 2000 and XP use async i/o */
os_aio_use_native_aio = TRUE;
}
#endif
if (srv_file_flush_method_str == NULL) {
/* These are the default options */
srv_unix_file_flush_method = SRV_UNIX_FDATASYNC;
srv_win_file_flush_method = SRV_WIN_IO_UNBUFFERED;
#ifndef __WIN__
} else if (0 == ut_strcmp(srv_file_flush_method_str, "fdatasync")) {
srv_unix_file_flush_method = SRV_UNIX_FDATASYNC;
} else if (0 == ut_strcmp(srv_file_flush_method_str, "O_DSYNC")) {
srv_unix_file_flush_method = SRV_UNIX_O_DSYNC;
} else if (0 == ut_strcmp(srv_file_flush_method_str, "O_DIRECT")) {
srv_unix_file_flush_method = SRV_UNIX_O_DIRECT;
} else if (0 == ut_strcmp(srv_file_flush_method_str, "littlesync")) {
srv_unix_file_flush_method = SRV_UNIX_LITTLESYNC;
} else if (0 == ut_strcmp(srv_file_flush_method_str, "nosync")) {
srv_unix_file_flush_method = SRV_UNIX_NOSYNC;
#else
} else if (0 == ut_strcmp(srv_file_flush_method_str, "normal")) {
srv_win_file_flush_method = SRV_WIN_IO_NORMAL;
os_aio_use_native_aio = FALSE;
} else if (0 == ut_strcmp(srv_file_flush_method_str, "unbuffered")) {
srv_win_file_flush_method = SRV_WIN_IO_UNBUFFERED;
os_aio_use_native_aio = FALSE;
} else if (0 == ut_strcmp(srv_file_flush_method_str,
"async_unbuffered")) {
srv_win_file_flush_method = SRV_WIN_IO_UNBUFFERED;
#endif
} else {
fprintf(stderr,
"InnoDB: Unrecognized value %s for innodb_flush_method\n",
srv_file_flush_method_str);
return(DB_ERROR);
}
/* Note that the call srv_boot() also changes the values of
srv_pool_size etc. to the units used by InnoDB internally */
/* Set the maximum number of threads which can wait for a semaphore
inside InnoDB: this is the 'sync wait array' size, as well as the
maximum number of threads that can wait in the 'srv_conc array' for
their time to enter InnoDB. */
#if defined(__WIN__) || defined(__NETWARE__)
/* Create less event semaphores because Win 98/ME had difficulty creating
40000 event semaphores.
Comment from Novell, Inc.: also, these just take a lot of memory on
NetWare. */
srv_max_n_threads = 1000;
#else
if (srv_pool_size >= 1000 * 1024) {
/* Here we still have srv_pool_size counted
in kilobytes (in 4.0 this was in bytes)
srv_boot() converts the value to
pages; if buffer pool is less than 1000 MB,
assume fewer threads. */
srv_max_n_threads = 50000;
} else if (srv_pool_size >= 8 * 1024) {
srv_max_n_threads = 10000;
} else {
srv_max_n_threads = 1000; /* saves several MB of memory,
especially in 64-bit
computers */
}
#endif
err = srv_boot(); /* This changes srv_pool_size to units of a page */
if (err != DB_SUCCESS) {
return((int) err);
}
mutex_create(&srv_monitor_file_mutex);
mutex_set_level(&srv_monitor_file_mutex, SYNC_NO_ORDER_CHECK);
if (srv_innodb_status) {
srv_monitor_file_name = mem_alloc(
strlen(fil_path_to_mysql_datadir) +
20 + sizeof "/innodb_status.");
sprintf(srv_monitor_file_name, "%s/innodb_status.%lu",
fil_path_to_mysql_datadir, os_proc_get_number());
srv_monitor_file = fopen(srv_monitor_file_name, "w+");
if (!srv_monitor_file) {
fprintf(stderr, "InnoDB: unable to create %s: %s\n",
srv_monitor_file_name, strerror(errno));
return(DB_ERROR);
}
} else {
srv_monitor_file_name = NULL;
srv_monitor_file = os_file_create_tmpfile();
if (!srv_monitor_file) {
return(DB_ERROR);
}
}
/* Restrict the maximum number of file i/o threads */
if (srv_n_file_io_threads > SRV_MAX_N_IO_THREADS) {
srv_n_file_io_threads = SRV_MAX_N_IO_THREADS;
}
if (!os_aio_use_native_aio) {
/* In simulated aio we currently have use only for 4 threads */
srv_n_file_io_threads = 4;
os_aio_init(8 * SRV_N_PENDING_IOS_PER_THREAD
* srv_n_file_io_threads,
srv_n_file_io_threads,
SRV_MAX_N_PENDING_SYNC_IOS);
} else {
os_aio_init(SRV_N_PENDING_IOS_PER_THREAD
* srv_n_file_io_threads,
srv_n_file_io_threads,
SRV_MAX_N_PENDING_SYNC_IOS);
}
fil_init(srv_max_n_open_files);
if (srv_use_awe) {
fprintf(stderr,
"InnoDB: Using AWE: Memory window is %lu MB and AWE memory is %lu MB\n",
(ulong) (srv_awe_window_size / ((1024 * 1024) / UNIV_PAGE_SIZE)),
(ulong) (srv_pool_size / ((1024 * 1024) / UNIV_PAGE_SIZE)));
/* We must disable adaptive hash indexes because they do not
tolerate remapping of pages in AWE */
srv_use_adaptive_hash_indexes = FALSE;
ret = buf_pool_init(srv_pool_size, srv_pool_size,
srv_awe_window_size);
} else {
ret = buf_pool_init(srv_pool_size, srv_pool_size,
srv_pool_size);
}
if (ret == NULL) {
fprintf(stderr,
"InnoDB: Fatal error: cannot allocate the memory for the buffer pool\n");
return(DB_ERROR);
}
fsp_init();
log_init();
lock_sys_create(srv_lock_table_size);
/* Create i/o-handler threads: */
for (i = 0; i < srv_n_file_io_threads; i++) {
n[i] = i;
os_thread_create(io_handler_thread, n + i, thread_ids + i);
}
#ifdef UNIV_LOG_ARCHIVE
if (0 != ut_strcmp(srv_log_group_home_dirs[0], srv_arch_dir)) {
fprintf(stderr,
"InnoDB: Error: you must set the log group home dir in my.cnf the\n"
"InnoDB: same as log arch dir.\n");
return(DB_ERROR);
}
#endif /* UNIV_LOG_ARCHIVE */
if (srv_n_log_files * srv_log_file_size >= 262144) {
fprintf(stderr,
"InnoDB: Error: combined size of log files must be < 4 GB\n");
return(DB_ERROR);
}
sum_of_new_sizes = 0;
for (i = 0; i < srv_n_data_files; i++) {
#ifndef __WIN__
if (sizeof(off_t) < 5 && srv_data_file_sizes[i] >= 262144) {
fprintf(stderr,
"InnoDB: Error: file size must be < 4 GB with this MySQL binary\n"
"InnoDB: and operating system combination, in some OS's < 2 GB\n");
return(DB_ERROR);
}
#endif
sum_of_new_sizes += srv_data_file_sizes[i];
}
if (sum_of_new_sizes < 640) {
fprintf(stderr,
"InnoDB: Error: tablespace size must be at least 10 MB\n");
return(DB_ERROR);
}
err = open_or_create_data_files(&create_new_db,
#ifdef UNIV_LOG_ARCHIVE
&min_arch_log_no, &max_arch_log_no,
#endif /* UNIV_LOG_ARCHIVE */
&min_flushed_lsn, &max_flushed_lsn,
&sum_of_new_sizes);
if (err != DB_SUCCESS) {
fprintf(stderr,
"InnoDB: Could not open or create data files.\n"
"InnoDB: If you tried to add new data files, and it failed here,\n"
"InnoDB: you should now edit innodb_data_file_path in my.cnf back\n"
"InnoDB: to what it was, and remove the new ibdata files InnoDB created\n"
"InnoDB: in this failed attempt. InnoDB only wrote those files full of\n"
"InnoDB: zeros, but did not yet use them in any way. But be careful: do not\n"
"InnoDB: remove old data files which contain your precious data!\n");
return((int) err);
}
#ifdef UNIV_LOG_ARCHIVE
srv_normalize_path_for_win(srv_arch_dir);
srv_arch_dir = srv_add_path_separator_if_needed(srv_arch_dir);
#endif /* UNIV_LOG_ARCHIVE */
for (i = 0; i < srv_n_log_files; i++) {
err = open_or_create_log_file(create_new_db, &log_file_created,
log_opened, 0, i);
if (err != DB_SUCCESS) {
return((int) err);
}
if (log_file_created) {
log_created = TRUE;
} else {
log_opened = TRUE;
}
if ((log_opened && create_new_db)
|| (log_opened && log_created)) {
fprintf(stderr,
"InnoDB: Error: all log files must be created at the same time.\n"
"InnoDB: All log files must be created also in database creation.\n"
"InnoDB: If you want bigger or smaller log files, shut down the\n"
"InnoDB: database and make sure there were no errors in shutdown.\n"
"InnoDB: Then delete the existing log files. Edit the .cnf file\n"
"InnoDB: and start the database again.\n");
return(DB_ERROR);
}
}
/* Open all log files and data files in the system tablespace: we
keep them open until database shutdown */
fil_open_log_and_system_tablespace_files();
if (log_created && !create_new_db
#ifdef UNIV_LOG_ARCHIVE
&& !srv_archive_recovery
#endif /* UNIV_LOG_ARCHIVE */
) {
if (ut_dulint_cmp(max_flushed_lsn, min_flushed_lsn) != 0
#ifdef UNIV_LOG_ARCHIVE
|| max_arch_log_no != min_arch_log_no
#endif /* UNIV_LOG_ARCHIVE */
) {
fprintf(stderr,
"InnoDB: Cannot initialize created log files because\n"
"InnoDB: data files were not in sync with each other\n"
"InnoDB: or the data files are corrupt.\n");
return(DB_ERROR);
}
if (ut_dulint_cmp(max_flushed_lsn, ut_dulint_create(0, 1000))
< 0) {
fprintf(stderr,
"InnoDB: Cannot initialize created log files because\n"
"InnoDB: data files are corrupt, or new data files were\n"
"InnoDB: created when the database was started previous\n"
"InnoDB: time but the database was not shut down\n"
"InnoDB: normally after that.\n");
return(DB_ERROR);
}
mutex_enter(&(log_sys->mutex));
#ifdef UNIV_LOG_ARCHIVE
/* Do not + 1 arch_log_no because we do not use log
archiving */
recv_reset_logs(max_flushed_lsn, max_arch_log_no, TRUE);
#else
recv_reset_logs(max_flushed_lsn, TRUE);
#endif /* UNIV_LOG_ARCHIVE */
mutex_exit(&(log_sys->mutex));
}
if (create_new_db) {
mtr_start(&mtr);
fsp_header_init(0, sum_of_new_sizes, &mtr);
mtr_commit(&mtr);
trx_sys_create();
dict_create();
srv_startup_is_before_trx_rollback_phase = FALSE;
#ifdef UNIV_LOG_ARCHIVE
} else if (srv_archive_recovery) {
fprintf(stderr,
"InnoDB: Starting archive recovery from a backup...\n");
err = recv_recovery_from_archive_start(
min_flushed_lsn,
srv_archive_recovery_limit_lsn,
min_arch_log_no);
if (err != DB_SUCCESS) {
return(DB_ERROR);
}
/* Since ibuf init is in dict_boot, and ibuf is needed
in any disk i/o, first call dict_boot */
dict_boot();
trx_sys_init_at_db_start();
srv_startup_is_before_trx_rollback_phase = FALSE;
/* Initialize the fsp free limit global variable in the log
system */
fsp_header_get_free_limit(0);
recv_recovery_from_archive_finish();
#endif /* UNIV_LOG_ARCHIVE */
} else {
/* We always try to do a recovery, even if the database had
been shut down normally: this is the normal startup path */
err = recv_recovery_from_checkpoint_start(LOG_CHECKPOINT,
ut_dulint_max,
min_flushed_lsn,
max_flushed_lsn);
if (err != DB_SUCCESS) {
return(DB_ERROR);
}
/* Since the insert buffer init is in dict_boot, and the
insert buffer is needed in any disk i/o, first we call
dict_boot(). Note that trx_sys_init_at_db_start() only needs
to access space 0, and the insert buffer at this stage already
works for space 0. */
dict_boot();
trx_sys_init_at_db_start();
if (srv_force_recovery < SRV_FORCE_NO_IBUF_MERGE) {
/* The following call is necessary for the insert
buffer to work with multiple tablespaces. We must
know the mapping between space id's and .ibd file
names.
In a crash recovery, we check that the info in data
dictionary is consistent with what we already know
about space id's from the call of
fil_load_single_table_tablespaces().
In a normal startup, we create the space objects for
every table in the InnoDB data dictionary that has
an .ibd file.
We also determine the maximum tablespace id used.
TODO: We may have incomplete transactions in the
data dictionary tables. Does that harm the scanning of
the data dictionary below? */
dict_check_tablespaces_and_store_max_id(
recv_needed_recovery);
}
srv_startup_is_before_trx_rollback_phase = FALSE;
/* Initialize the fsp free limit global variable in the log
system */
fsp_header_get_free_limit(0);
/* recv_recovery_from_checkpoint_finish needs trx lists which
are initialized in trx_sys_init_at_db_start(). */
recv_recovery_from_checkpoint_finish();
}
if (!create_new_db && sum_of_new_sizes > 0) {
/* New data file(s) were added */
mtr_start(&mtr);
fsp_header_inc_size(0, sum_of_new_sizes, &mtr);
mtr_commit(&mtr);
}
if (recv_needed_recovery) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Flushing modified pages from the buffer pool...\n");
}
log_make_checkpoint_at(ut_dulint_max, TRUE);
#ifdef UNIV_LOG_ARCHIVE
/* Archiving is always off under MySQL */
if (!srv_log_archive_on) {
ut_a(DB_SUCCESS == log_archive_noarchivelog());
} else {
mutex_enter(&(log_sys->mutex));
start_archive = FALSE;
if (log_sys->archiving_state == LOG_ARCH_OFF) {
start_archive = TRUE;
}
mutex_exit(&(log_sys->mutex));
if (start_archive) {
ut_a(DB_SUCCESS == log_archive_archivelog());
}
}
#endif /* UNIV_LOG_ARCHIVE */
if (srv_measure_contention) {
/* os_thread_create(&test_measure_cont, NULL, thread_ids +
SRV_MAX_N_IO_THREADS); */
}
/* fprintf(stderr, "Max allowed record size %lu\n",
page_get_free_space_of_empty() / 2); */
/* Create the thread which watches the timeouts for lock waits
and prints InnoDB monitor info */
os_thread_create(&srv_lock_timeout_and_monitor_thread, NULL,
thread_ids + 2 + SRV_MAX_N_IO_THREADS);
/* Create the thread which warns of long semaphore waits */
os_thread_create(&srv_error_monitor_thread, NULL,
thread_ids + 3 + SRV_MAX_N_IO_THREADS);
srv_was_started = TRUE;
srv_is_being_started = FALSE;
#ifdef UNIV_DEBUG
/* Wait a while so that the created threads have time to suspend
themselves before we switch sync debugging on; otherwise a thread may
execute mutex_enter() before the checks are on, and mutex_exit() after
the checks are on, which will cause an assertion failure in sync
debug. */
os_thread_sleep(3000000);
#endif
sync_order_checks_on = TRUE;
if (srv_use_doublewrite_buf && trx_doublewrite == NULL) {
/* Create the doublewrite buffer to a new tablespace */
trx_sys_create_doublewrite_buf();
}
err = dict_create_or_check_foreign_constraint_tables();
if (err != DB_SUCCESS) {
return((int)DB_ERROR);
}
/* Create the master thread which does purge and other utility
operations */
os_thread_create(&srv_master_thread, NULL, thread_ids + 1 +
SRV_MAX_N_IO_THREADS);
/* buf_debug_prints = TRUE; */
sum_of_data_file_sizes = 0;
for (i = 0; i < srv_n_data_files; i++) {
sum_of_data_file_sizes += srv_data_file_sizes[i];
}
tablespace_size_in_header = fsp_header_get_tablespace_size(0);
if (!srv_auto_extend_last_data_file
&& sum_of_data_file_sizes != tablespace_size_in_header) {
fprintf(stderr,
"InnoDB: Error: tablespace size stored in header is %lu pages, but\n"
"InnoDB: the sum of data file sizes is %lu pages\n",
(ulong) tablespace_size_in_header,
(ulong) sum_of_data_file_sizes);
if (srv_force_recovery == 0
&& sum_of_data_file_sizes < tablespace_size_in_header) {
/* This is a fatal error, the tail of a tablespace is
missing */
fprintf(stderr,
"InnoDB: Cannot start InnoDB. The tail of the system tablespace is\n"
"InnoDB: missing. Have you edited innodb_data_file_path in my.cnf in an\n"
"InnoDB: inappropriate way, removing ibdata files from there?\n"
"InnoDB: You can set innodb_force_recovery=1 in my.cnf to force\n"
"InnoDB: a startup if you are trying to recover a badly corrupt database.\n");
return(DB_ERROR);
}
}
if (srv_auto_extend_last_data_file
&& sum_of_data_file_sizes < tablespace_size_in_header) {
fprintf(stderr,
"InnoDB: Error: tablespace size stored in header is %lu pages, but\n"
"InnoDB: the sum of data file sizes is only %lu pages\n",
(ulong) tablespace_size_in_header,
(ulong) sum_of_data_file_sizes);
if (srv_force_recovery == 0) {
fprintf(stderr,
"InnoDB: Cannot start InnoDB. The tail of the system tablespace is\n"
"InnoDB: missing. Have you edited innodb_data_file_path in my.cnf in an\n"
"InnoDB: inappropriate way, removing ibdata files from there?\n"
"InnoDB: You can set innodb_force_recovery=1 in my.cnf to force\n"
"InnoDB: a startup if you are trying to recover a badly corrupt database.\n");
return(DB_ERROR);
}
}
/* Check that os_fast_mutexes work as expected */
os_fast_mutex_init(&srv_os_test_mutex);
if (0 != os_fast_mutex_trylock(&srv_os_test_mutex)) {
fprintf(stderr,
"InnoDB: Error: pthread_mutex_trylock returns an unexpected value on\n"
"InnoDB: success! Cannot continue.\n");
exit(1);
}
os_fast_mutex_unlock(&srv_os_test_mutex);
os_fast_mutex_lock(&srv_os_test_mutex);
os_fast_mutex_unlock(&srv_os_test_mutex);
os_fast_mutex_free(&srv_os_test_mutex);
if (srv_print_verbose_log) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Started; log sequence number %lu %lu\n",
(ulong) ut_dulint_get_high(srv_start_lsn),
(ulong) ut_dulint_get_low(srv_start_lsn));
}
if (srv_force_recovery > 0) {
fprintf(stderr,
"InnoDB: !!! innodb_force_recovery is set to %lu !!!\n",
(ulong) srv_force_recovery);
}
fflush(stderr);
if (trx_doublewrite_must_reset_space_ids) {
/* Actually, we did not change the undo log format between
4.0 and 4.1.1, and we would not need to run purge to
completion. Note also that the purge algorithm in 4.1.1
can process the the history list again even after a full
purge, because our algorithm does not cut the end of the
history list in all cases so that it would become empty
after a full purge. That mean that we may purge 4.0 type
undo log even after this phase.
The insert buffer record format changed between 4.0 and
4.1.1. It is essential that the insert buffer is emptied
here! */
fprintf(stderr,
"InnoDB: You are upgrading to an InnoDB version which allows multiple\n"
"InnoDB: tablespaces. Wait that purge and insert buffer merge run to\n"
"InnoDB: completion...\n");
for (;;) {
os_thread_sleep(1000000);
if (0 == strcmp(srv_main_thread_op_info,
"waiting for server activity")) {
ut_a(ibuf_is_empty());
break;
}
}
fprintf(stderr,
"InnoDB: Full purge and insert buffer merge completed.\n");
trx_sys_mark_upgraded_to_multiple_tablespaces();
fprintf(stderr,
"InnoDB: You have now successfully upgraded to the multiple tablespaces\n"
"InnoDB: format. You should NOT DOWNGRADE to an earlier version of\n"
"InnoDB: InnoDB! But if you absolutely need to downgrade, see\n"
"InnoDB: http://dev.mysql.com/doc/mysql/en/Multiple_tablespaces.html\n"
"InnoDB: for instructions.\n");
}
if (srv_force_recovery == 0) {
/* In the insert buffer we may have even bigger tablespace
id's, because we may have dropped those tablespaces, but
insert buffer merge has not had time to clean the records from
the ibuf tree. */
ibuf_update_max_tablespace_id();
}
srv_file_per_table = srv_file_per_table_original_value;
return((int) DB_SUCCESS);
}
/********************************************************************
Shuts down the InnoDB database. */
int
innobase_shutdown_for_mysql(void)
/*=============================*/
/* out: DB_SUCCESS or error code */
{
ulint i;
#ifdef __NETWARE__
extern ibool panic_shutdown;
#endif
if (!srv_was_started) {
if (srv_is_being_started) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Warning: shutting down a not properly started\n"
" InnoDB: or created database!\n");
}
return(DB_SUCCESS);
}
/* 1. Flush the buffer pool to disk, write the current lsn to
the tablespace header(s), and copy all log data to archive.
The step 1 is the real InnoDB shutdown. The remaining steps 2 - ...
just free data structures after the shutdown. */
#ifdef __NETWARE__
if(!panic_shutdown)
#endif
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);
}
/* 2. Make all threads created by InnoDB to exit */
srv_shutdown_state = SRV_SHUTDOWN_EXIT_THREADS;
/* All threads end up waiting for certain events. Put those events
to the signaled state. Then the threads will exit themselves in
os_thread_event_wait(). */
for (i = 0; i < 1000; i++) {
/* NOTE: IF YOU CREATE THREADS IN INNODB, YOU MUST EXIT THEM
HERE OR EARLIER */
/* a. Let the lock timeout thread exit */
os_event_set(srv_lock_timeout_thread_event);
/* b. srv error monitor thread exits automatically, no need
to do anything here */
/* c. We wake the master thread so that it exits */
srv_wake_master_thread();
/* d. Exit the i/o threads */
os_aio_wake_all_threads_at_shutdown();
os_mutex_enter(os_sync_mutex);
if (os_thread_count == 0) {
/* All the threads have exited or are just exiting;
NOTE that the threads may not have completed their
exit yet. Should we use pthread_join() to make sure
they have exited? Now we just sleep 0.1 seconds and
hope that is enough! */
os_mutex_exit(os_sync_mutex);
os_thread_sleep(100000);
break;
}
os_mutex_exit(os_sync_mutex);
os_thread_sleep(100000);
}
if (i == 1000) {
fprintf(stderr,
"InnoDB: Warning: %lu threads created by InnoDB had not exited at shutdown!\n",
(ulong) os_thread_count);
}
if (srv_monitor_file) {
fclose(srv_monitor_file);
srv_monitor_file = 0;
if (srv_monitor_file_name) {
unlink(srv_monitor_file_name);
mem_free(srv_monitor_file_name);
}
}
mutex_free(&srv_monitor_file_mutex);
/* 3. Free all InnoDB's own mutexes and the os_fast_mutexes inside
them */
sync_close();
/* 4. Free the os_conc_mutex and all os_events and os_mutexes */
srv_free();
os_sync_free();
/* 5. Free all allocated memory and the os_fast_mutex created in
ut0mem.c */
ut_free_all_mem();
if (os_thread_count != 0
|| os_event_count != 0
|| os_mutex_count != 0
|| os_fast_mutex_count != 0) {
fprintf(stderr,
"InnoDB: Warning: some resources were not cleaned up in shutdown:\n"
"InnoDB: threads %lu, events %lu, os_mutexes %lu, os_fast_mutexes %lu\n",
(ulong) os_thread_count, (ulong) os_event_count,
(ulong) os_mutex_count, (ulong) os_fast_mutex_count);
}
if (dict_foreign_err_file) {
fclose(dict_foreign_err_file);
}
if (lock_latest_err_file) {
fclose(lock_latest_err_file);
}
if (srv_print_verbose_log) {
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: Shutdown completed; log sequence number %lu %lu\n",
(ulong) ut_dulint_get_high(srv_shutdown_lsn),
(ulong) ut_dulint_get_low(srv_shutdown_lsn));
}
return((int) DB_SUCCESS);
}
#ifdef __NETWARE__
void set_panic_flag_for_netware()
{
extern ibool panic_shutdown;
panic_shutdown = TRUE;
}
#endif
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