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open binlog index file *before* tc_log->open() and binlog itself *after*

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This commit is contained in:
serg@serg.mylan 2005-02-01 15:36:48 +01:00
parent a1690b46f2
commit fb78bfebe4
7 changed files with 252 additions and 226 deletions
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219
sql/log.cc
View file

@ -380,7 +380,7 @@ void MYSQL_LOG::cleanup()
int MYSQL_LOG::generate_new_name(char *new_name, const char *log_name)
{
{
fn_format(new_name,log_name,mysql_data_home,"",4);
if (log_type != LOG_NORMAL)
{
@ -421,6 +421,67 @@ void MYSQL_LOG::init_pthread_objects()
(void) pthread_cond_init(&update_cond, 0);
}
const char *MYSQL_LOG::generate_name(const char *log_name,
const char *suffix,
bool strip_ext, char *buff)
{
DBUG_ASSERT(!strip_ext || (log_name && log_name[0]));
if (!log_name || !log_name[0])
{
/*
TODO: The following should be using fn_format(); We just need to
first change fn_format() to cut the file name if it's too long.
*/
strmake(buff,glob_hostname,FN_REFLEN-5);
strmov(fn_ext(buff),suffix);
return (const char *)buff;
}
// get rid of extension if the log is binary to avoid problems
if (strip_ext)
{
char *p = fn_ext(log_name);
uint length=(uint) (p-log_name);
strmake(buff,log_name,min(length,FN_REFLEN));
return (const char*)buff;
}
return log_name;
}
bool MYSQL_LOG::open_index_file(const char *index_file_name_arg,
const char *log_name)
{
File index_file_nr= -1;
DBUG_ASSERT(!my_b_inited(&index_file));
/*
First open of this class instance
Create an index file that will hold all file names uses for logging.
Add new entries to the end of it.
*/
myf opt= MY_UNPACK_FILENAME;
if (!index_file_name_arg)
{
index_file_name_arg= log_name; // Use same basename for index file
opt= MY_UNPACK_FILENAME | MY_REPLACE_EXT;
}
fn_format(index_file_name, index_file_name_arg, mysql_data_home,
".index", opt);
if ((index_file_nr= my_open(index_file_name,
O_RDWR | O_CREAT | O_BINARY ,
MYF(MY_WME))) < 0 ||
my_sync(index_file_nr, MYF(MY_WME)) ||
init_io_cache(&index_file, index_file_nr,
IO_SIZE, WRITE_CACHE,
my_seek(index_file_nr,0L,MY_SEEK_END,MYF(0)),
0, MYF(MY_WME)))
{
if (index_file_nr >= 0)
my_close(index_file_nr,MYF(0));
return TRUE;
}
return FALSE;
}
/*
Open a (new) log file.
@ -436,31 +497,35 @@ void MYSQL_LOG::init_pthread_objects()
1 error
*/
bool MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
const char *new_name, const char *index_file_name_arg,
enum cache_type io_cache_type_arg,
bool no_auto_events_arg,
bool MYSQL_LOG::open(const char *log_name,
enum_log_type log_type_arg,
const char *new_name,
enum cache_type io_cache_type_arg,
bool no_auto_events_arg,
ulong max_size_arg,
bool null_created_arg)
{
char buff[512];
File file= -1, index_file_nr= -1;
char buff[FN_REFLEN];
File file= -1;
int open_flags = O_CREAT | O_BINARY;
DBUG_ENTER("MYSQL_LOG::open");
DBUG_PRINT("enter",("log_type: %d",(int) log_type));
DBUG_PRINT("enter",("log_type: %d",(int) log_type_arg));
last_time=query_start=0;
write_error=0;
init(log_type_arg,io_cache_type_arg,no_auto_events_arg,max_size_arg);
if (!(name=my_strdup(log_name,MYF(MY_WME))))
{
name= (char *)log_name; // for the error message
goto err;
}
if (new_name)
strmov(log_file_name,new_name);
else if (generate_new_name(log_file_name, name))
goto err;
if (io_cache_type == SEQ_READ_APPEND)
open_flags |= O_RDWR | O_APPEND;
else
@ -521,13 +586,6 @@ bool MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
{
bool write_file_name_to_index_file=0;
myf opt= MY_UNPACK_FILENAME;
if (!index_file_name_arg)
{
index_file_name_arg= name; // Use same basename for index file
opt= MY_UNPACK_FILENAME | MY_REPLACE_EXT;
}
if (!my_b_filelength(&log_file))
{
/*
@ -543,31 +601,9 @@ bool MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
write_file_name_to_index_file= 1;
}
if (!my_b_inited(&index_file))
{
/*
First open of this class instance
Create an index file that will hold all file names uses for logging.
Add new entries to the end of it.
*/
fn_format(index_file_name, index_file_name_arg, mysql_data_home,
".index", opt);
if ((index_file_nr= my_open(index_file_name,
O_RDWR | O_CREAT | O_BINARY ,
MYF(MY_WME))) < 0 ||
my_sync(index_file_nr, MYF(MY_WME)) ||
init_io_cache(&index_file, index_file_nr,
IO_SIZE, WRITE_CACHE,
my_seek(index_file_nr,0L,MY_SEEK_END,MYF(0)),
0, MYF(MY_WME)))
goto err;
}
else
{
safe_mutex_assert_owner(&LOCK_index);
reinit_io_cache(&index_file, WRITE_CACHE, my_b_filelength(&index_file),
0, 0);
}
DBUG_ASSERT(my_b_inited(&index_file));
reinit_io_cache(&index_file, WRITE_CACHE,
my_b_filelength(&index_file), 0, 0);
if (need_start_event && !no_auto_events)
{
/*
@ -609,7 +645,7 @@ bool MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
description_event_for_queue->created= 0;
/* Don't set log_pos in event header */
description_event_for_queue->artificial_event=1;
if (description_event_for_queue->write(&log_file))
goto err;
bytes_written+= description_event_for_queue->data_written;
@ -644,11 +680,9 @@ err:
sql_print_error("Could not use %s for logging (error %d). \
Turning logging off for the whole duration of the MySQL server process. \
To turn it on again: fix the cause, \
shutdown the MySQL server and restart it.", log_name, errno);
shutdown the MySQL server and restart it.", name, errno);
if (file >= 0)
my_close(file,MYF(0));
if (index_file_nr >= 0)
my_close(index_file_nr,MYF(0));
end_io_cache(&log_file);
end_io_cache(&index_file);
safeFree(name);
@ -754,8 +788,8 @@ int MYSQL_LOG::find_log_pos(LOG_INFO *linfo, const char *log_name,
DBUG_PRINT("enter",("log_name: %s", log_name ? log_name : "NULL"));
/*
Mutex needed because we need to make sure the file pointer does not move
from under our feet
Mutex needed because we need to make sure the file pointer does not
move from under our feet
*/
if (need_lock)
pthread_mutex_lock(&LOCK_index);
@ -907,11 +941,12 @@ bool MYSQL_LOG::reset_logs(THD* thd)
my_delete(index_file_name, MYF(MY_WME)); // Reset (open will update)
if (!thd->slave_thread)
need_start_event=1;
open(save_name, save_log_type, 0, index_file_name,
open_index_file(index_file_name, 0);
open(save_name, save_log_type, 0,
io_cache_type, no_auto_events, max_size, 0);
my_free((gptr) save_name, MYF(0));
err:
err:
pthread_mutex_unlock(&LOCK_index);
pthread_mutex_unlock(&LOCK_log);
DBUG_RETURN(error);
@ -930,7 +965,7 @@ err:
rli->group_relay_log_name are deleted ; if true, the latter is
deleted too (i.e. all relay logs
read by the SQL slave thread are deleted).
NOTE
- This is only called from the slave-execute thread when it has read
all commands from a relay log and want to switch to a new relay log.
@ -1281,7 +1316,7 @@ void MYSQL_LOG::new_file(bool need_lock)
if (generate_new_name(new_name, name))
goto end;
new_name_ptr=new_name;
if (log_type == LOG_BIN)
{
if (!no_auto_events)
@ -1300,28 +1335,28 @@ void MYSQL_LOG::new_file(bool need_lock)
log rotation should give the waiting thread a signal to
discover EOF and move on to the next log.
*/
signal_update();
signal_update();
}
old_name=name;
save_log_type=log_type;
name=0; // Don't free name
close(LOG_CLOSE_TO_BE_OPENED);
/*
/*
Note that at this point, log_type != LOG_CLOSED (important for is_open()).
*/
/*
/*
new_file() is only used for rotation (in FLUSH LOGS or because size >
max_binlog_size or max_relay_log_size).
max_binlog_size or max_relay_log_size).
If this is a binary log, the Format_description_log_event at the beginning of
the new file should have created=0 (to distinguish with the
Format_description_log_event written at server startup, which should
trigger temp tables deletion on slaves.
*/
*/
open(old_name, save_log_type, new_name_ptr, index_file_name, io_cache_type,
no_auto_events, max_size, 1);
open(old_name, save_log_type, new_name_ptr,
io_cache_type, no_auto_events, max_size, 1);
my_free(old_name,MYF(0));
end:
@ -2028,11 +2063,11 @@ void MYSQL_LOG::wait_for_update(THD* thd, bool master_or_slave)
SYNOPSIS
close()
exiting Bitmask for one or more of the following bits:
LOG_CLOSE_INDEX if we should close the index file
LOG_CLOSE_TO_BE_OPENED if we intend to call open
at once after close.
LOG_CLOSE_STOP_EVENT write a 'stop' event to the log
exiting Bitmask for one or more of the following bits:
LOG_CLOSE_INDEX if we should close the index file
LOG_CLOSE_TO_BE_OPENED if we intend to call open
at once after close.
LOG_CLOSE_STOP_EVENT write a 'stop' event to the log
NOTES
One can do an open on the object at once after doing a close.
@ -2433,7 +2468,7 @@ int TC_LOG_MMAP::open(const char *opt_name)
bool crashed=FALSE;
PAGE *pg;
DBUG_ASSERT(total_ha_2pc);
DBUG_ASSERT(total_ha_2pc > 1);
DBUG_ASSERT(opt_name && opt_name[0]);
#ifdef HAVE_GETPAGESIZE
@ -2824,6 +2859,18 @@ err1:
return 1;
}
/*
Perform heuristic recovery, if --tc-heuristic-recover was used
RETURN VALUE
0 no heuristic recovery was requested
1 heuristic recovery was performed
NOTE
no matter whether heuristic recovery was successful or not
mysqld must exit. So, return value is the same in both cases.
*/
int TC_LOG::using_heuristic_recover()
{
if (!tc_heuristic_recover)
@ -2848,10 +2895,11 @@ int TC_LOG::using_heuristic_recover()
int TC_LOG_BINLOG::open(const char *opt_name)
{
LOG_INFO log_info, new_log_info;
int error;
LOG_INFO log_info;
int error= 1;
DBUG_ASSERT(total_ha_2pc > 1);
DBUG_ASSERT(opt_name && opt_name[0]);
pthread_mutex_init(&LOCK_prep_xids, MY_MUTEX_INIT_FAST);
pthread_cond_init (&COND_prep_xids, 0);
@ -2859,21 +2907,15 @@ int TC_LOG_BINLOG::open(const char *opt_name)
if (using_heuristic_recover())
return 1;
/*
read index file to get a last but one binlog filename
note - there's no need to lock any mutex, mysqld is only starting
up, no other threads are running yet.
still, there's safe_mutex_assert_owner() in binlog code, so
let's keep it happy.
*/
if ((error= find_log_pos(&new_log_info, NullS, 1)))
if ((error= find_log_pos(&log_info, NullS, 1)))
{
sql_print_error("find_log_pos() failed (error: %d)", error);
goto err; // er ? where's the current entry ?
if (error != LOG_INFO_EOF)
sql_print_error("find_log_pos() failed (error: %d)", error);
else
error= 0;
goto err;
}
if (strcmp(log_file_name, new_log_info.log_file_name))
{
const char *errmsg;
char last_event_type=UNKNOWN_EVENT;
@ -2881,23 +2923,22 @@ int TC_LOG_BINLOG::open(const char *opt_name)
File file;
Log_event *ev=0;
Format_description_log_event fdle(BINLOG_VERSION);
char log_name[FN_REFLEN];
if (! fdle.is_valid())
goto err;
do
for (error= 0; !error ;)
{
log_info.index_file_offset=new_log_info.index_file_offset;
log_info.index_file_start_offset=new_log_info.index_file_offset;
strcpy(log_info.log_file_name, new_log_info.log_file_name);
if ((error= find_next_log(&new_log_info, 1)))
strnmov(log_name, log_info.log_file_name, sizeof(log_name));
if ((error= find_next_log(&log_info, 1)) != LOG_INFO_EOF)
{
sql_print_error("find_log_pos() failed (error: %d)", error);
goto err; // er ? where's the current entry ?
goto err;
}
} while (strcmp(log_file_name, new_log_info.log_file_name));
}
if ((file= open_binlog(&log, log_info.log_file_name, &errmsg)) < 0)
if ((file= open_binlog(&log, log_name, &errmsg)) < 0)
{
sql_print_error("%s", errmsg);
goto err;
@ -2921,10 +2962,8 @@ int TC_LOG_BINLOG::open(const char *opt_name)
goto err;
}
return 0;
err:
return 1;
return error;
}
/* this is called on shutdown, after ha_panic */

5
sql/mysql_priv.h
View file

@ -930,11 +930,6 @@ void sql_print_information(const char *format, ...);
bool fn_format_relative_to_data_home(my_string to, const char *name,
const char *dir, const char *extension);
bool open_log(MYSQL_LOG *log, const char *hostname,
const char *opt_name, const char *extension,
const char *index_file_name,
enum_log_type type, bool read_append,
bool no_auto_events, ulong max_size);
File open_binlog(IO_CACHE *log, const char *log_file_name,
const char **errmsg);
handlerton *binlog_init();

72
sql/mysqld.cc
View file

@ -2289,45 +2289,14 @@ extern "C" pthread_handler_decl(handle_shutdown,arg)
#endif
const char *load_default_groups[]= {
const char *load_default_groups[]= {
#ifdef HAVE_NDBCLUSTER_DB
"mysql_cluster",
#endif
"mysqld","server",MYSQL_BASE_VERSION,0,0};
"mysqld","server", MYSQL_BASE_VERSION, 0, 0};
static const int load_default_groups_sz=
sizeof(load_default_groups)/sizeof(load_default_groups[0]);
bool open_log(MYSQL_LOG *log, const char *hostname,
const char *opt_name, const char *extension,
const char *index_file_name,
enum_log_type type, bool read_append,
bool no_auto_events, ulong max_size)
{
char tmp[FN_REFLEN];
if (!opt_name || !opt_name[0])
{
/*
TODO: The following should be using fn_format(); We just need to
first change fn_format() to cut the file name if it's too long.
*/
strmake(tmp,hostname,FN_REFLEN-5);
strmov(fn_ext(tmp),extension);
opt_name=tmp;
}
// get rid of extension if the log is binary to avoid problems
if (type == LOG_BIN)
{
char *p = fn_ext(opt_name);
uint length=(uint) (p-opt_name);
strmake(tmp,opt_name,min(length,FN_REFLEN));
opt_name=tmp;
}
return log->open(opt_name, type, 0, index_file_name,
(read_append) ? SEQ_READ_APPEND : WRITE_CACHE,
no_auto_events, max_size, 0);
}
/*
Initialize one of the global date/time format variables
@ -2335,7 +2304,7 @@ bool open_log(MYSQL_LOG *log, const char *hostname,
init_global_datetime_format()
format_type What kind of format should be supported
var_ptr Pointer to variable that should be updated
NOTES
The default value is taken from either opt_date_time_formats[] or
the ISO format (ANSI SQL)
@ -2617,8 +2586,7 @@ static int init_server_components()
#endif
/* Setup log files */
if (opt_log)
open_log(&mysql_log, glob_hostname, opt_logname, ".log", NullS,
LOG_NORMAL, 0, 0, 0);
mysql_log.open_query_log(opt_logname);
if (opt_update_log)
{
/*
@ -2671,20 +2639,13 @@ version 5.0 and above. It is replaced by the binary log. Now starting MySQL \
with --log-bin instead.");
}
}
if (opt_bin_log)
{
open_log(&mysql_bin_log, glob_hostname, opt_bin_logname, "-bin",
opt_binlog_index_name, LOG_BIN, 0, 0, max_binlog_size);
using_update_log=1;
}
else if (opt_log_slave_updates)
if (opt_log_slave_updates && !opt_bin_log)
sql_print_warning("\
you need to use --log-bin to make --log-slave-updates work. \
You need to use --log-bin to make --log-slave-updates work. \
Now disabling --log-slave-updates.");
if (opt_slow_log)
open_log(&mysql_slow_log, glob_hostname, opt_slow_logname, "-slow.log",
NullS, LOG_NORMAL, 0, 0, 0);
mysql_slow_log.open_slow_log(opt_slow_logname);
#ifdef HAVE_REPLICATION
if (opt_log_slave_updates && replicate_same_server_id)
@ -2716,12 +2677,25 @@ server.");
}
}
if (opt_bin_log)
{
char buf[FN_REFLEN];
const char *ln;
ln= mysql_bin_log.generate_name(opt_bin_logname, "-bin", 1, buf);
if (ln == buf)
{
my_free(opt_bin_logname, MYF(0));
opt_bin_logname=my_strdup(buf, MYF(0));
}
mysql_bin_log.open_index_file(opt_binlog_index_name, ln);
using_update_log=1;
}
if (ha_init())
{
sql_print_error("Can't init databases");
unireg_abort(1);
}
tc_log= total_ha_2pc > 1 ? opt_bin_log ?
(TC_LOG *)&mysql_bin_log :
(TC_LOG *)&tc_log_mmap :
@ -2733,6 +2707,10 @@ server.");
unireg_abort(1);
}
if (opt_bin_log)
mysql_bin_log.open(opt_bin_logname, LOG_BIN, 0,
WRITE_CACHE, 0, max_binlog_size, 0);
#ifdef HAVE_REPLICATION
if (opt_bin_log && expire_logs_days)
{

135
sql/slave.cc
View file

@ -1,15 +1,15 @@
/* Copyright (C) 2000-2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
@ -158,7 +158,7 @@ int init_slave()
sql_print_error("Failed to allocate memory for the master info structure");
goto err;
}
if (init_master_info(active_mi,master_info_file,relay_log_info_file,
!master_host, (SLAVE_IO | SLAVE_SQL)))
{
@ -551,9 +551,9 @@ int purge_relay_logs(RELAY_LOG_INFO* rli, THD *thd, bool just_reset,
/*
Even if rli->inited==0, we still try to empty rli->master_log_* variables.
Indeed, rli->inited==0 does not imply that they already are empty.
It could be that slave's info initialization partly succeeded :
It could be that slave's info initialization partly succeeded :
for example if relay-log.info existed but *relay-bin*.*
have been manually removed, init_relay_log_info reads the old
have been manually removed, init_relay_log_info reads the old
relay-log.info and fills rli->master_log_*, then init_relay_log_info
checks for the existence of the relay log, this fails and
init_relay_log_info leaves rli->inited to 0.
@ -562,7 +562,7 @@ int purge_relay_logs(RELAY_LOG_INFO* rli, THD *thd, bool just_reset,
MASTER, the callers of purge_relay_logs, will delete bogus *.info files
or replace them with correct files), however if the user does SHOW SLAVE
STATUS before START SLAVE, he will see old, confusing rli->master_log_*.
In other words, we reinit rli->master_log_* for SHOW SLAVE STATUS
In other words, we reinit rli->master_log_* for SHOW SLAVE STATUS
to display fine in any case.
*/
@ -1655,7 +1655,8 @@ void end_master_info(MASTER_INFO* mi)
}
int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
static int init_relay_log_info(RELAY_LOG_INFO* rli,
const char* info_fname)
{
char fname[FN_REFLEN+128];
int info_fd;
@ -1663,7 +1664,7 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
int error = 0;
DBUG_ENTER("init_relay_log_info");
if (rli->inited) // Set if this function called
if (rli->inited) // Set if this function called
DBUG_RETURN(0);
fn_format(fname, info_fname, mysql_data_home, "", 4+32);
pthread_mutex_lock(&rli->data_lock);
@ -1674,23 +1675,10 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
rli->log_space_limit= relay_log_space_limit;
rli->log_space_total= 0;
// TODO: make this work with multi-master
if (!opt_relay_logname)
{
char tmp[FN_REFLEN];
/*
TODO: The following should be using fn_format(); We just need to
first change fn_format() to cut the file name if it's too long.
*/
strmake(tmp,glob_hostname,FN_REFLEN-5);
strmov(strcend(tmp,'.'),"-relay-bin");
opt_relay_logname=my_strdup(tmp,MYF(MY_WME));
}
/*
The relay log will now be opened, as a SEQ_READ_APPEND IO_CACHE.
Note that the I/O thread flushes it to disk after writing every event, in
flush_master_info(mi, 1).
Note that the I/O thread flushes it to disk after writing every
event, in flush_master_info(mi, 1).
*/
/*
@ -1702,16 +1690,25 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
switch to using max_binlog_size for the relay log) and update
rli->relay_log.max_size (and mysql_bin_log.max_size).
*/
if (open_log(&rli->relay_log, glob_hostname, opt_relay_logname,
"-relay-bin", opt_relaylog_index_name,
LOG_BIN, 1 /* read_append cache */,
0 /* starting from 5.0 we want relay logs to have auto events */,
max_relay_log_size ? max_relay_log_size : max_binlog_size))
{
pthread_mutex_unlock(&rli->data_lock);
sql_print_error("Failed in open_log() called from init_relay_log_info()");
DBUG_RETURN(1);
char buf[FN_REFLEN];
const char *ln;
ln= rli->relay_log.generate_name(opt_relay_logname, "-relay-bin",
1, buf);
/*
note, that if open() fails, we'll still have index file open
but a destructor will take care of that
*/
if (rli->relay_log.open_index_file(opt_relaylog_index_name, ln) ||
rli->relay_log.open(ln, LOG_BIN, 0, SEQ_READ_APPEND, 0,
(max_relay_log_size ? max_relay_log_size :
max_binlog_size), 0))
{
pthread_mutex_unlock(&rli->data_lock);
sql_print_error("Failed in open_log() called from init_relay_log_info()");
DBUG_RETURN(1);
}
}
/* if file does not exist */
@ -1980,9 +1977,9 @@ void clear_until_condition(RELAY_LOG_INFO* rli)
int init_master_info(MASTER_INFO* mi, const char* master_info_fname,
const char* slave_info_fname,
bool abort_if_no_master_info_file,
int thread_mask)
const char* slave_info_fname,
bool abort_if_no_master_info_file,
int thread_mask)
{
int fd,error;
char fname[FN_REFLEN+128];
@ -1996,7 +1993,7 @@ int init_master_info(MASTER_INFO* mi, const char* master_info_fname,
last time. If this case pos_in_file would be set and we would
get a crash when trying to read the signature for the binary
relay log.
We only rewind the read position if we are starting the SQL
thread. The handle_slave_sql thread assumes that the read
position is at the beginning of the file, and will read the
@ -2022,7 +2019,7 @@ int init_master_info(MASTER_INFO* mi, const char* master_info_fname,
fd = mi->fd;
/* does master.info exist ? */
if (access(fname,F_OK))
{
if (abort_if_no_master_info_file)
@ -2058,7 +2055,7 @@ file '%s')", fname);
{
if (fd >= 0)
reinit_io_cache(&mi->file, READ_CACHE, 0L,0,0);
else
else
{
if ((fd = my_open(fname, O_RDWR|O_BINARY, MYF(MY_WME))) < 0 )
{
@ -2078,52 +2075,52 @@ file '%s')", fname);
mi->fd = fd;
int port, connect_retry, master_log_pos, ssl= 0, lines;
char *first_non_digit;
/*
Starting from 4.1.x master.info has new format. Now its
first line contains number of lines in file. By reading this
number we will be always distinguish to which version our
master.info corresponds to. We can't simply count lines in
first line contains number of lines in file. By reading this
number we will be always distinguish to which version our
master.info corresponds to. We can't simply count lines in
file since versions before 4.1.x could generate files with more
lines than needed.
If first line doesn't contain a number or contain number less than
If first line doesn't contain a number or contain number less than
14 then such file is treated like file from pre 4.1.1 version.
There is no ambiguity when reading an old master.info, as before
There is no ambiguity when reading an old master.info, as before
4.1.1, the first line contained the binlog's name, which is either
empty or has an extension (contains a '.'), so can't be confused
empty or has an extension (contains a '.'), so can't be confused
with an integer.
So we're just reading first line and trying to figure which version
So we're just reading first line and trying to figure which version
is this.
*/
/*
The first row is temporarily stored in mi->master_log_name,
if it is line count and not binlog name (new format) it will be
/*
The first row is temporarily stored in mi->master_log_name,
if it is line count and not binlog name (new format) it will be
overwritten by the second row later.
*/
if (init_strvar_from_file(mi->master_log_name,
sizeof(mi->master_log_name), &mi->file,
""))
goto errwithmsg;
lines= strtoul(mi->master_log_name, &first_non_digit, 10);
if (mi->master_log_name[0]!='\0' &&
if (mi->master_log_name[0]!='\0' &&
*first_non_digit=='\0' && lines >= LINES_IN_MASTER_INFO_WITH_SSL)
{ // Seems to be new format
if (init_strvar_from_file(mi->master_log_name,
if (init_strvar_from_file(mi->master_log_name,
sizeof(mi->master_log_name), &mi->file, ""))
goto errwithmsg;
}
else
lines= 7;
if (init_intvar_from_file(&master_log_pos, &mi->file, 4) ||
init_strvar_from_file(mi->host, sizeof(mi->host), &mi->file,
master_host) ||
init_strvar_from_file(mi->user, sizeof(mi->user), &mi->file,
master_user) ||
master_user) ||
init_strvar_from_file(mi->password, SCRAMBLED_PASSWORD_CHAR_LENGTH+1,
&mi->file, master_password) ||
init_intvar_from_file(&port, &mi->file, master_port) ||
@ -2131,17 +2128,17 @@ file '%s')", fname);
master_connect_retry))
goto errwithmsg;
/*
If file has ssl part use it even if we have server without
SSL support. But these option will be ignored later when
slave will try connect to master, so in this case warning
/*
If file has ssl part use it even if we have server without
SSL support. But these option will be ignored later when
slave will try connect to master, so in this case warning
is printed.
*/
if (lines >= LINES_IN_MASTER_INFO_WITH_SSL &&
if (lines >= LINES_IN_MASTER_INFO_WITH_SSL &&
(init_intvar_from_file(&ssl, &mi->file, master_ssl) ||
init_strvar_from_file(mi->ssl_ca, sizeof(mi->ssl_ca),
init_strvar_from_file(mi->ssl_ca, sizeof(mi->ssl_ca),
&mi->file, master_ssl_ca) ||
init_strvar_from_file(mi->ssl_capath, sizeof(mi->ssl_capath),
init_strvar_from_file(mi->ssl_capath, sizeof(mi->ssl_capath),
&mi->file, master_ssl_capath) ||
init_strvar_from_file(mi->ssl_cert, sizeof(mi->ssl_cert),
&mi->file, master_ssl_cert) ||
@ -2156,7 +2153,7 @@ file '%s')", fname);
"('%s') are ignored because this MySQL slave was compiled "
"without SSL support.", fname);
#endif /* HAVE_OPENSSL */
/*
This has to be handled here as init_intvar_from_file can't handle
my_off_t types
@ -2176,15 +2173,15 @@ file '%s')", fname);
mi->inited = 1;
// now change cache READ -> WRITE - must do this before flush_master_info
reinit_io_cache(&mi->file, WRITE_CACHE,0L,0,1);
reinit_io_cache(&mi->file, WRITE_CACHE, 0L, 0, 1);
if ((error=test(flush_master_info(mi, 1))))
sql_print_error("Failed to flush master info file");
pthread_mutex_unlock(&mi->data_lock);
DBUG_RETURN(error);
errwithmsg:
sql_print_error("Error reading master configuration");
err:
if (fd >= 0)
{
@ -4553,7 +4550,7 @@ Log_event* next_event(RELAY_LOG_INFO* rli)
/* This is an assertion which sometimes fails, let's try to track it */
char llbuf1[22], llbuf2[22];
DBUG_PRINT("info", ("my_b_tell(cur_log)=%s rli->event_relay_log_pos=%s",
llstr(my_b_tell(cur_log),llbuf1),
llstr(my_b_tell(cur_log),llbuf1),
llstr(rli->event_relay_log_pos,llbuf2)));
DBUG_ASSERT(my_b_tell(cur_log) >= BIN_LOG_HEADER_SIZE);
DBUG_ASSERT(my_b_tell(cur_log) == rli->event_relay_log_pos);
@ -4573,7 +4570,7 @@ Log_event* next_event(RELAY_LOG_INFO* rli)
*/
if ((ev=Log_event::read_log_event(cur_log,0,
rli->relay_log.description_event_for_exec)))
{
DBUG_ASSERT(thd==rli->sql_thd);
/*

19
sql/slave.h
View file

@ -1,15 +1,15 @@
/* Copyright (C) 2000-2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
@ -366,11 +366,11 @@ typedef struct st_master_info
my_bool ssl; // enables use of SSL connection if true
char ssl_ca[FN_REFLEN], ssl_capath[FN_REFLEN], ssl_cert[FN_REFLEN];
char ssl_cipher[FN_REFLEN], ssl_key[FN_REFLEN];
my_off_t master_log_pos;
File fd; // we keep the file open, so we need to remember the file pointer
IO_CACHE file;
pthread_mutex_t data_lock,run_lock;
pthread_cond_t data_cond,start_cond,stop_cond;
THD *io_thd;
@ -385,7 +385,7 @@ typedef struct st_master_info
bool inited;
volatile bool abort_slave, slave_running;
volatile ulong slave_run_id;
/*
/*
The difference in seconds between the clock of the master and the clock of
the slave (second - first). It must be signed as it may be <0 or >0.
clock_diff_with_master is computed when the I/O thread starts; for this the
@ -394,8 +394,8 @@ typedef struct st_master_info
clock_of_slave - last_timestamp_executed_by_SQL_thread - clock_diff_with_master
*/
long clock_diff_with_master;
long clock_diff_with_master;
st_master_info()
:ssl(0), fd(-1), io_thd(0), inited(0),
abort_slave(0),slave_running(0), slave_run_id(0)
@ -403,7 +403,7 @@ typedef struct st_master_info
host[0] = 0; user[0] = 0; password[0] = 0;
ssl_ca[0]= 0; ssl_capath[0]= 0; ssl_cert[0]= 0;
ssl_cipher[0]= 0; ssl_key[0]= 0;
bzero((char*) &file, sizeof(file));
pthread_mutex_init(&run_lock, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&data_lock, MY_MUTEX_INIT_FAST);
@ -523,7 +523,6 @@ int init_master_info(MASTER_INFO* mi, const char* master_info_fname,
bool abort_if_no_master_info_file,
int thread_mask);
void end_master_info(MASTER_INFO* mi);
int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname);
void end_relay_log_info(RELAY_LOG_INFO* rli);
void lock_slave_threads(MASTER_INFO* mi);
void unlock_slave_threads(MASTER_INFO* mi);

26
sql/sql_class.h
View file

@ -255,7 +255,7 @@ public:
{
#ifndef DBUG_OFF
char buf1[22],buf2[22];
#endif
#endif
DBUG_ENTER("harvest_bytes_written");
(*counter)+=bytes_written;
DBUG_PRINT("info",("counter: %s bytes_written: %s", llstr(*counter,buf1),
@ -272,11 +272,29 @@ public:
bool no_auto_events_arg, ulong max_size);
void init_pthread_objects();
void cleanup();
bool open(const char *log_name,enum_log_type log_type,
const char *new_name, const char *index_file_name_arg,
bool open(const char *log_name,
enum_log_type log_type,
const char *new_name,
enum cache_type io_cache_type_arg,
bool no_auto_events_arg, ulong max_size,
bool null_created);
const char *generate_name(const char *log_name, const char *suffix,
bool strip_ext, char *buff);
/* simplified open_xxx wrappers for the gigantic open above */
bool open_query_log(const char *log_name)
{
char buf[FN_REFLEN];
return open(generate_name(log_name, ".log", 0, buf),
LOG_NORMAL, 0, WRITE_CACHE, 0, 0, 0);
}
bool open_slow_log(const char *log_name)
{
char buf[FN_REFLEN];
return open(generate_name(log_name, "-slow.log", 0, buf),
LOG_NORMAL, 0, WRITE_CACHE, 0, 0, 0);
}
bool open_index_file(const char *index_file_name_arg,
const char *log_name);
void new_file(bool need_lock= 1);
bool write(THD *thd, enum enum_server_command command,
const char *format,...);
@ -291,7 +309,7 @@ public:
*/
bool appendv(const char* buf,uint len,...);
bool append(Log_event* ev);
int generate_new_name(char *new_name,const char *old_name);
void make_log_name(char* buf, const char* log_ident);
bool is_active(const char* log_file_name);

2
sql/sql_yacc.yy
View file

@ -8052,7 +8052,7 @@ xa: XA_SYM begin_or_start xid opt_join_or_resume
;
xid: ident_or_text { Lex->ident=$1; }
;
;
begin_or_start: BEGIN_SYM {}
| START_SYM {}