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Commit 6a5c6b17 authored by unknown's avatar unknown
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Merge work:/home/bk/mysql-4.0 into hundin.mysql.fi:/my/bk/mysql-4.0 


Docs/manual.texi:
  Auto merged
sql/mysqld.cc:
  Auto merged
parents 55607135 3c64d250
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Showing with 226 additions and 80 deletions
Docs/manual.texi
View file @ 6a5c6b17
......@@ -28438,6 +28438,12 @@ will be unsigned! @xref{Cast Functions}.
A very small integer. The signed range is @code{-128} to @code{127}. The
unsigned range is @code{0} to @code{255}.
@tindex BOOL
@tindex BIT
@item BIT
@itemx BOOL
These are synonyms for @code{TINYINT(1)}.
@tindex SMALLINT
@item SMALLINT[(M)] [UNSIGNED] [ZEROFILL]
......@@ -28505,14 +28511,14 @@ integers) you may get unexpected results when the result is larger than
@cindex floating-point number
@tindex FLOAT
@tindex FLOAT(precision)
@item FLOAT(precision) [ZEROFILL]
@item FLOAT(precision) [UNSIGNED] [ZEROFILL]
A floating-point number. Cannot be unsigned. @code{precision} can be
A floating-point number. @code{precision} can be
@code{<=24} for a single-precision floating-point number and between 25
and 53 for a double-precision floating-point number. These types are like
the @code{FLOAT} and @code{DOUBLE} types described immediately below.
@code{FLOAT(X)} has the same range as the corresponding @code{FLOAT} and
@code{DOUBLE} types, but the display size and number of decimals is undefined.
@code{DOUBLE} types, but the display size and number of decimals are undefined.
In MySQL Version 3.23, this is a true floating-point value. In
earlier MySQL versions, @code{FLOAT(precision)} always has 2 decimals.
......@@ -28527,38 +28533,40 @@ This syntax is provided for ODBC compatibility.
@tindex FLOAT
@tindex FLOAT(M,D)
@item FLOAT[(M,D)] [ZEROFILL]
@item FLOAT[(M,D)] [UNSIGNED] [ZEROFILL]
A small (single-precision) floating-point number. Cannot be unsigned.
Allowable values are @code{@w{-3.402823466E+38}} to
@code{@w{-1.175494351E-38}}, @code{0}, and @code{@w{1.175494351E-38}} to
@code{3.402823466E+38}. The @code{M} is the display width and @code{D} is the
number of decimals. @code{FLOAT} without arguments or @code{FLOAT(X)} where
@code{X} <= 24 stands for a single-precision floating-point number.
A small (single-precision) floating-point number. Allowable values are
@code{@w{-3.402823466E+38}} to @code{@w{-1.175494351E-38}}, @code{0},
and @code{@w{1.175494351E-38}} to @code{3.402823466E+38}. If
@code{UNSIGNED} is specified, negative values are disallowed. The @code{M}
is the display width and @code{D} is the number of decimals. @code{FLOAT}
without arguments or @code{FLOAT(X)} where @code{X} <= 24 stands for a
single-precision floating-point number.
@tindex DOUBLE
@tindex FLOAT(precision)
@item DOUBLE[(M,D)] [ZEROFILL]
@item DOUBLE[(M,D)] [UNSIGNED] [ZEROFILL]
A normal-size (double-precision) floating-point number. Cannot be
unsigned. Allowable values are @code{@w{-1.7976931348623157E+308}} to
A normal-size (double-precision) floating-point number.
Allowable values are @code{@w{-1.7976931348623157E+308}} to
@code{@w{-2.2250738585072014E-308}}, @code{0}, and
@code{2.2250738585072014E-308} to @code{1.7976931348623157E+308}. The
@code{2.2250738585072014E-308} to @code{1.7976931348623157E+308}. If
@code{UNSIGNED} is specified, negative values are disallowed. The
@code{M} is the display width and @code{D} is the number of decimals.
@code{DOUBLE} without arguments or @code{FLOAT(X)} where 25 <= @code{X}
<= 53 stands for a double-precision floating-point number.
@tindex DOUBLE PRECISION
@tindex REAL
@item DOUBLE PRECISION[(M,D)] [ZEROFILL]
@itemx REAL[(M,D)] [ZEROFILL]
@item DOUBLE PRECISION[(M,D)] [UNSIGNED] [ZEROFILL]
@itemx REAL[(M,D)] [UNSIGNED] [ZEROFILL]
These are synonyms for @code{DOUBLE}.
@tindex DECIMAL
@item DECIMAL[(M[,D])] [ZEROFILL]
@item DECIMAL[(M[,D])] [UNSIGNED] [ZEROFILL]
An unpacked floating-point number. Cannot be unsigned. Behaves like a
An unpacked floating-point number. Behaves like a
@code{CHAR} column: ``unpacked'' means the number is stored as a string,
using one character for each digit of the value. The decimal point and,
for negative numbers, the @samp{-} sign, are not counted in @code{M} (but
......@@ -28566,7 +28574,7 @@ space for these is reserved). If @code{D} is 0, values will have no decimal
point or fractional part. The maximum range of @code{DECIMAL} values is
the same as for @code{DOUBLE}, but the actual range for a given
@code{DECIMAL} column may be constrained by the choice of @code{M} and
@code{D}.
@code{D}. If @code{UNSIGNED} is specified, negative values are disallowed.
If @code{D} is omitted, the default is 0. If @code{M} is omitted, the
default is 10.
......@@ -28576,8 +28584,8 @@ needed for the sign and the decimal point.
@tindex DEC
@tindex NUMERIC
@item DEC[(M[,D])] [ZEROFILL]
@itemx NUMERIC[(M[,D])] [ZEROFILL]
@item DEC[(M[,D])] [UNSIGNED] [ZEROFILL]
@itemx NUMERIC[(M[,D])] [UNSIGNED] [ZEROFILL]
These are synonyms for @code{DECIMAL}.
......@@ -28667,12 +28675,8 @@ column that only can take 2 values: A @code{CHAR(0)}, that is not defined
as @code{NOT NULL}, will occupy only one bit and can take only 2 values:
@code{NULL} or @code{""}. @xref{CHAR, , @code{CHAR}}.
@tindex BOOL
@tindex BIT
@item BIT
@itemx BOOL
@itemx CHAR
These three are synonyms for @code{CHAR(1)}.
@item CHAR
This is a synonym for @code{CHAR(1)}.
@tindex CHARACTER VARYING
@tindex CHAR VARYING
......@@ -28809,10 +28813,10 @@ MySQL stores the value representing the corresponding end
point of that range.
As an extension to the ANSI/ISO SQL92 standard, MySQL also
supports the integral types @code{TINYINT}, @code{MEDIUMINT}, and
supports the integer types @code{TINYINT}, @code{MEDIUMINT}, and
@code{BIGINT} as listed in the tables above. Another extension is
supported by MySQL for optionally specifying the display width
of an integral value in parentheses following the base keyword for the
of an integer value in parentheses following the base keyword for the
type (for example, @code{INT(4)}). This optional width specification is
used to left-pad the display of values whose width is less than the
width specified for the column, but does not constrain the range of
......@@ -28827,11 +28831,16 @@ problems when MySQL generates temporary tables for some
complicated joins, as in these cases MySQL trusts that the
data did fit into the original column width.
All integral types can have an optional (non-standard) attribute
All integer types can have an optional (non-standard) attribute
@code{UNSIGNED}. Unsigned values can be used when you want to allow
only positive numbers in a column and you need a little bigger numeric
range for the column.
As of MySQL 4.0.2, floating-point types also can be @code{UNSIGNED}.
As with integer types, this attribute prevents negative values from
being stored in the column. Unlike the integer types, the upper range
of column values remains the same.
The @code{FLOAT} type is used to represent approximate numeric data
types. The ANSI/ISO SQL92 standard allows an optional specification of
the precision (but not the range of the exponent) in bits following the
......@@ -54046,7 +54055,7 @@ ODBC or ANSI SQL92 syntax.
Fixed syntax of @code{ALTER TABLE tbl_name ALTER COLUMN col_name SET DEFAULT
NULL}.
@item
Added @code{CHAR} and @code{BIT} as synonyms for @code{CHAR(1)}.
Added @code{CHAR} (with no length specifier) as a synonym for @code{CHAR(1)}.
@item
Fixed core dump when updating as a user who has only @strong{select} privilege.
@item
isam/_locking.c
View file @ 6a5c6b17
......@@ -306,8 +306,8 @@ int _nisam_writeinfo(register N_INFO *info, uint flags)
MYF(MY_WME | MY_SEEK_NOT_DONE)) && !error)
DBUG_RETURN(1);
}
}
#endif
}
my_errno=olderror;
}
else if (flags)
......
mysql-test/r/rpl000014.result
View file @ 6a5c6b17
......@@ -7,22 +7,22 @@ show master status;
File Position Binlog_do_db Binlog_ignore_db
master-bin.001 79
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 1 master-bin.001 79 slave-relay-bin.002 120 master-bin.001 Yes Yes 0 0 79
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.001 79 slave-relay-bin.002 120 master-bin.001 Yes Yes 0 0 79 124
change master to master_log_pos=73;
slave stop;
change master to master_log_pos=73;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 1 master-bin.001 73 slave-relay-bin.001 4 master-bin.001 No No 0 0 73
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.001 73 slave-relay-bin.001 4 master-bin.001 No No 0 0 73 4
slave start;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 1 master-bin.001 73 slave-relay-bin.001 4 master-bin.001 Yes Yes 0 0 73
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.001 73 slave-relay-bin.001 4 master-bin.001 Yes Yes 0 0 73 4
change master to master_log_pos=173;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 1 master-bin.001 173 slave-relay-bin.001 4 master-bin.001 Yes Yes 0 0 173
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.001 173 slave-relay-bin.001 4 master-bin.001 Yes Yes 0 0 173 4
show master status;
File Position Binlog_do_db Binlog_ignore_db
master-bin.001 79
......
mysql-test/r/rpl000015.result
View file @ 6a5c6b17
......@@ -4,21 +4,21 @@ File Position Binlog_do_db Binlog_ignore_db
master-bin.001 79
reset slave;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
0 0 0 0 No No 0 0 0
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
0 0 0 0 No No 0 0 0 0
change master to master_host='127.0.0.1';
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 test MASTER_PORT 7 4 slave-relay-bin.001 4 No No 0 0 0
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 test MASTER_PORT 7 4 slave-relay-bin.001 4 No No 0 0 0 4
change master to master_host='127.0.0.1',master_user='root',
master_password='',master_port=MASTER_PORT;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 7 4 slave-relay-bin.001 4 No No 0 0 0
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 7 4 slave-relay-bin.001 4 No No 0 0 0 4
slave start;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 7 master-bin.001 79 slave-relay-bin.001 120 master-bin.001 Yes Yes 0 0 79
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 7 master-bin.001 79 slave-relay-bin.001 120 master-bin.001 Yes Yes 0 0 79 120
drop table if exists t1;
create table t1 (n int);
insert into t1 values (10),(45),(90);
......
mysql-test/r/rpl000016.result
View file @ 6a5c6b17
......@@ -14,8 +14,8 @@ drop table if exists t1;
create table t1 (s text);
insert into t1 values('Could not break slave'),('Tried hard');
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 60 master-bin.001 234 slave-relay-bin.001 275 master-bin.001 Yes Yes 0 0 234
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 60 master-bin.001 234 slave-relay-bin.001 275 master-bin.001 Yes Yes 0 0 234 275
select * from t1;
s
Could not break slave
......@@ -41,8 +41,8 @@ Log_name
master-bin.003
insert into t2 values (65);
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 60 master-bin.003 155 slave-relay-bin.001 755 master-bin.003 Yes Yes 0 0 155
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 60 master-bin.003 155 slave-relay-bin.001 755 master-bin.003 Yes Yes 0 0 155 755
select * from t2;
m
34
......@@ -64,8 +64,8 @@ master-bin.006 445
slave stop;
slave start;
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 60 master-bin.006 445 slave-relay-bin.004 1229 master-bin.006 Yes Yes 0 0 445
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 60 master-bin.006 445 slave-relay-bin.004 1229 master-bin.006 Yes Yes 0 0 445 1229
lock tables t3 read;
select count(*) from t3 where n >= 4;
count(*)
......
mysql-test/r/rpl_log.result
View file @ 6a5c6b17
......@@ -74,8 +74,8 @@ slave-bin.002 57 Query 1 4 use test; create table t1 (n int)
slave-bin.002 115 Query 1 62 use test; insert into t1 values (1)
slave-bin.002 175 Query 1 122 use test; drop table t1
show slave status;
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos
127.0.0.1 root MASTER_PORT 1 master-bin.002 170 slave-relay-bin.002 916 master-bin.002 Yes Yes 0 0 170
Master_Host Master_User Master_Port Connect_retry Master_Log_File Read_Master_Log_Pos Relay_Log_File Relay_Log_Pos Relay_Master_Log_File Slave_IO_Running Slave_SQL_Running Replicate_do_db Replicate_ignore_db Last_errno Last_error Skip_counter Exec_master_log_pos Relay_log_space
127.0.0.1 root MASTER_PORT 1 master-bin.002 170 slave-relay-bin.002 916 master-bin.002 Yes Yes 0 0 170 920
show new master for slave with master_log_file='master-bin.001' and
master_log_pos=4 and master_server_id=1;
Log_name Log_pos
......
mysys/mf_iocache.c
View file @ 6a5c6b17
......@@ -906,7 +906,7 @@ int _flush_io_cache(IO_CACHE *info, int need_append_buffer_lock)
uint length;
my_bool append_cache;
my_off_t pos_in_file;
DBUG_ENTER("flush_io_cache");
DBUG_ENTER("_flush_io_cache");
if (!(append_cache = (info->type == SEQ_READ_APPEND)))
need_append_buffer_lock=0;
......
mysys/mf_iocache2.c
View file @ 6a5c6b17
......@@ -117,6 +117,7 @@ void my_b_seek(IO_CACHE *info,my_off_t pos)
}
info->pos_in_file=pos;
info->seek_not_done=1;
DBUG_VOID_RETURN;
}
......
sql/log.cc
View file @ 6a5c6b17
......@@ -83,7 +83,7 @@ static int find_uniq_filename(char *name)
MYSQL_LOG::MYSQL_LOG(): last_time(0), query_start(0),index_file(-1),
name(0), log_type(LOG_CLOSED),write_error(0),
inited(0), file_id(1),no_rotate(0),
need_start_event(1)
need_start_event(1),bytes_written(0)
{
/*
We don't want to intialize LOCK_Log here as the thread system may
......@@ -99,6 +99,7 @@ MYSQL_LOG::~MYSQL_LOG()
{
(void) pthread_mutex_destroy(&LOCK_log);
(void) pthread_mutex_destroy(&LOCK_index);
(void) pthread_cond_destroy(&update_cond);
}
}
......@@ -233,18 +234,14 @@ void MYSQL_LOG::open(const char *log_name, enum_log_type log_type_arg,
}
else if (log_type == LOG_BIN)
{
bool error;
/*
Explanation of the boolean black magic:
if we are supposed to write magic number try write
clean
up if failed
then if index_file has not been previously opened, try to open it
clean up if failed
*/
if ((do_magic && my_b_write(&log_file, (byte*) BINLOG_MAGIC, 4)) ||
bool error;
if (do_magic)
{
if (my_b_write(&log_file, (byte*) BINLOG_MAGIC, 4) ||
open_index(O_APPEND | O_RDWR | O_CREAT))
goto err;
goto err;
bytes_written += 4;
}
if (need_start_event && !no_auto_events)
{
......@@ -462,12 +459,30 @@ int MYSQL_LOG::purge_first_log(struct st_relay_log_info* rli)
my_delete(fname, MYF(0)); // do not report error if the file is not there
else
{
MY_STAT s;
my_close(index_file, MYF(MY_WME));
if (!my_stat(rli->relay_log_name,&s,MYF(0)))
{
sql_print_error("The first log %s failed to stat during purge",
rli->relay_log_name);
error=1;
goto err;
}
if (my_rename(fname,index_file_name,MYF(MY_WME)) ||
(index_file=my_open(index_file_name,O_BINARY|O_RDWR|O_APPEND,
MYF(MY_WME)))<0 ||
my_delete(rli->relay_log_name, MYF(MY_WME)))
error=1;
pthread_mutex_lock(&rli->log_space_lock);
rli->log_space_total -= s.st_size;
fprintf(stderr,"purge_first_log: %ld\n", rli->log_space_total);
pthread_mutex_unlock(&rli->log_space_lock);
// ok to broadcast after the critical region as there is no risk of
// the mutex being destroyed by this thread later - this helps save
// context switches
pthread_cond_broadcast(&rli->log_space_cond);
if ((error=find_first_log(&rli->linfo,"",0/*no mutex*/)))
{
char buff[22];
......@@ -695,6 +710,7 @@ void MYSQL_LOG::new_file(bool inside_mutex)
if (thd && thd->slave_thread)
r.flags |= LOG_EVENT_FORCED_ROTATE_F;
r.write(&log_file);
bytes_written += r.get_event_len();
}
// update needs to be signaled even if there is no rotate event
// log rotation should give the waiting thread a signal to
......@@ -728,6 +744,7 @@ bool MYSQL_LOG::append(Log_event* ev)
error=1;
goto err;
}
bytes_written += ev->get_event_len();
if ((uint)my_b_append_tell(&log_file) > max_binlog_size)
{
new_file(1);
......@@ -754,6 +771,7 @@ bool MYSQL_LOG::appendv(const char* buf, uint len,...)
error = 1;
break;
}
bytes_written += len;
} while ((buf=va_arg(args,const char*)) && (len=va_arg(args,uint)));
if ((uint) my_b_append_tell(&log_file) > max_binlog_size)
......
sql/mysqld.cc
View file @ 6a5c6b17
......@@ -3042,6 +3042,8 @@ CHANGEABLE_VAR changeable_vars[] = {
128*1024L, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE },
{ "record_rnd_buffer", (long*) &record_rnd_cache_size,
0, IO_SIZE*2+MALLOC_OVERHEAD, ~0L, MALLOC_OVERHEAD, IO_SIZE },
{ "relay_log_space_limit", (long*) &relay_log_space_limit, 0L, 0L,ULONG_MAX,
0, 1},
{ "slave_net_timeout", (long*) &slave_net_timeout,
SLAVE_NET_TIMEOUT, 1, LONG_TIMEOUT, 0, 1 },
{ "slow_launch_time", (long*) &slow_launch_time,
......
sql/slave.cc
View file @ 6a5c6b17
......@@ -42,6 +42,8 @@ bool do_table_inited = 0, ignore_table_inited = 0;
bool wild_do_table_inited = 0, wild_ignore_table_inited = 0;
bool table_rules_on = 0;
static TABLE* save_temporary_tables = 0;
ulong relay_log_space_limit = 0; /* TODO: fix variables to access ulonglong
values and make it ulonglong */
// when slave thread exits, we need to remember the temporary tables so we
// can re-use them on slave start
......@@ -60,8 +62,10 @@ static int process_io_rotate(MASTER_INFO* mi, Rotate_log_event* rev);
static int process_io_create_file(MASTER_INFO* mi, Create_file_log_event* cev);
static int queue_old_event(MASTER_INFO* mi, const char* buf,
uint event_len);
static bool wait_for_relay_log_space(RELAY_LOG_INFO* rli);
static inline bool io_slave_killed(THD* thd,MASTER_INFO* mi);
static inline bool sql_slave_killed(THD* thd,RELAY_LOG_INFO* rli);
static int count_relay_log_space(RELAY_LOG_INFO* rli);
static int init_slave_thread(THD* thd, SLAVE_THD_TYPE thd_type);
static int safe_connect(THD* thd, MYSQL* mysql, MASTER_INFO* mi);
static int safe_reconnect(THD* thd, MYSQL* mysql, MASTER_INFO* mi);
......@@ -264,8 +268,9 @@ void init_slave_skip_errors(char* arg)
// are not running
int purge_relay_logs(RELAY_LOG_INFO* rli, bool just_reset, const char** errmsg)
{
DBUG_ENTER("purge_relay_logs");
if (!rli->inited)
return 0; /* successfully do nothing */
DBUG_RETURN(0); /* successfully do nothing */
DBUG_ASSERT(rli->slave_running == 0);
DBUG_ASSERT(rli->mi->slave_running == 0);
int error=0;
......@@ -282,14 +287,20 @@ int purge_relay_logs(RELAY_LOG_INFO* rli, bool just_reset, const char** errmsg)
goto err;
}
strnmov(rli->relay_log_name,rli->linfo.log_file_name,
sizeof(rli->relay_log_name));
sizeof(rli->relay_log_name)-1);
rli->log_space_total=4; //just first log with magic number and nothing else
rli->relay_log_pos=4;
rli->relay_log.reset_bytes_written();
rli->log_pos_current=0;
if (!just_reset)
error = init_relay_log_pos(rli,0,0,0/*do not need data lock*/,errmsg);
err:
err:
#ifndef DBUG_OFF
char buf[22];
#endif
DBUG_PRINT("info",("log_space_total=%s",llstr(rli->log_space_total,buf)));
pthread_mutex_unlock(&rli->data_lock);
return error;
DBUG_RETURN(error);
}
int terminate_slave_threads(MASTER_INFO* mi,int thread_mask,bool skip_lock)
......@@ -953,8 +964,9 @@ void end_master_info(MASTER_INFO* mi)
int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
{
DBUG_ENTER("init_relay_log_info");
if (rli->inited)
return 0;
DBUG_RETURN(0);
MY_STAT stat_area;
char fname[FN_REFLEN+128];
int info_fd;
......@@ -970,6 +982,8 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
rli->log_pos_current=0;
rli->abort_pos_wait=0;
rli->skip_log_purge=0;
rli->log_space_limit = relay_log_space_limit;
rli->log_space_total = 0;
// TODO: make this work with multi-master
if (!opt_relay_logname)
{
......@@ -1001,7 +1015,7 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
my_close(info_fd, MYF(0));
rli->info_fd=-1;
pthread_mutex_unlock(&rli->data_lock);
return 1;
DBUG_RETURN(1);
}
if (init_relay_log_pos(rli,"",4,0/*no data mutex*/,&msg))
goto err;
......@@ -1021,7 +1035,7 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
my_close(info_fd, MYF(0));
rli->info_fd=-1;
pthread_mutex_unlock(&rli->data_lock);
return 1;
DBUG_RETURN(1);
}
rli->info_fd = info_fd;
......@@ -1052,8 +1066,13 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
// before flush_relay_log_info
reinit_io_cache(&rli->info_file, WRITE_CACHE,0L,0,1);
error=test(flush_relay_log_info(rli));
if (count_relay_log_space(rli))
{
msg="Error counting relay log space";
goto err;
}
pthread_mutex_unlock(&rli->data_lock);
return error;
DBUG_RETURN(error);
err:
sql_print_error(msg);
......@@ -1061,9 +1080,66 @@ int init_relay_log_info(RELAY_LOG_INFO* rli, const char* info_fname)
my_close(info_fd, MYF(0));
rli->info_fd=-1;
pthread_mutex_unlock(&rli->data_lock);
return 1;
DBUG_RETURN(1);
}
static inline int add_relay_log(RELAY_LOG_INFO* rli,LOG_INFO* linfo)
{
MY_STAT s;
DBUG_ENTER("add_relay_log");
if (!my_stat(linfo->log_file_name,&s,MYF(0)))
{
sql_print_error("log %s listed in the index, but failed to stat",
linfo->log_file_name);
DBUG_RETURN(1);
}
rli->log_space_total += s.st_size;
#ifndef DBUG_OFF
char buf[22];
#endif
DBUG_PRINT("info",("log_space_total: %s", llstr(rli->log_space_total,buf)));
DBUG_RETURN(0);
}
static bool wait_for_relay_log_space(RELAY_LOG_INFO* rli)
{
bool slave_killed;
MASTER_INFO* mi = rli->mi;
const char* save_proc_info;
THD* thd = mi->io_thd;
DBUG_ENTER("wait_for_relay_log_space");
pthread_mutex_lock(&rli->log_space_lock);
save_proc_info = thd->proc_info;
thd->proc_info = "Waiting for relay log space to free";
while (rli->log_space_limit < rli->log_space_total &&
!(slave_killed=io_slave_killed(thd,mi)))
{
pthread_cond_wait(&rli->log_space_cond, &rli->log_space_lock);
}
thd->proc_info = save_proc_info;
pthread_mutex_unlock(&rli->log_space_lock);
DBUG_RETURN(slave_killed);
}
static int count_relay_log_space(RELAY_LOG_INFO* rli)
{
LOG_INFO linfo;
DBUG_ENTER("count_relay_log_space");
rli->log_space_total = 0;
if (rli->relay_log.find_first_log(&linfo,""))
{
sql_print_error("Could not find first log while counting relay log space");
DBUG_RETURN(1);
}
if (add_relay_log(rli,&linfo))
DBUG_RETURN(1);
while (!rli->relay_log.find_next_log(&linfo))
{
if (add_relay_log(rli,&linfo))
DBUG_RETURN(1);
}
DBUG_RETURN(0);
}
int init_master_info(MASTER_INFO* mi, const char* master_info_fname,
const char* slave_info_fname)
......@@ -1242,6 +1318,7 @@ int show_master_info(THD* thd, MASTER_INFO* mi)
field_list.push_back(new Item_empty_string("Last_error", 20));
field_list.push_back(new Item_empty_string("Skip_counter", 12));
field_list.push_back(new Item_empty_string("Exec_master_log_pos", 12));
field_list.push_back(new Item_empty_string("Relay_log_space", 12));
if(send_fields(thd, field_list, 1))
DBUG_RETURN(-1);
......@@ -1268,6 +1345,7 @@ int show_master_info(THD* thd, MASTER_INFO* mi)
net_store_data(packet, mi->rli.last_slave_error);
net_store_data(packet, mi->rli.slave_skip_counter);
net_store_data(packet, (longlong) mi->rli.master_log_pos);
net_store_data(packet, (longlong) mi->rli.log_space_total);
pthread_mutex_unlock(&mi->rli.data_lock);
pthread_mutex_unlock(&mi->data_lock);
......@@ -1783,6 +1861,14 @@ from master");
goto err;
}
flush_master_info(mi);
if (mi->rli.log_space_limit && mi->rli.log_space_limit <
mi->rli.log_space_total)
if (wait_for_relay_log_space(&mi->rli))
{
sql_print_error("Slave I/O thread aborted while waiting for relay \
log space");
goto err;
}
// TODO: check debugging abort code
#ifndef DBUG_OFF
if (abort_slave_event_count && !--events_till_abort)
......@@ -1986,7 +2072,7 @@ static int process_io_create_file(MASTER_INFO* mi, Create_file_log_event* cev)
goto err;
}
/* this dummy block is so we could insantiate Append_block_log_event
/* this dummy block is so we could instantiate Append_block_log_event
once and then modify it slightly instead of doing it multiple times
in the loop
*/
......@@ -2012,6 +2098,7 @@ static int process_io_create_file(MASTER_INFO* mi, Create_file_log_event* cev)
relay log");
goto err;
}
mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
break;
}
if (unlikely(cev_not_written))
......@@ -2026,6 +2113,7 @@ relay log");
goto err;
}
cev_not_written=0;
mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
}
else
{
......@@ -2038,6 +2126,7 @@ relay log");
relay log");
goto err;
}
mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total) ;
}
}
}
......@@ -2145,6 +2234,7 @@ static int queue_old_event(MASTER_INFO *mi, const char *buf,
DBUG_ASSERT(!tmp_buf);
return 1;
}
mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
}
delete ev;
if (likely(inc_pos))
......@@ -2198,6 +2288,7 @@ int queue_event(MASTER_INFO* mi,const char* buf, ulong event_len)
{
if (likely(inc_pos))
mi->master_log_pos += event_len;
mi->rli.relay_log.harvest_bytes_written(&mi->rli.log_space_total);
}
if (unlikely(processed_stop_event))
mi->ignore_stop_event=1;
......
sql/slave.h
View file @ 6a5c6b17
......@@ -31,6 +31,7 @@ extern char* slave_load_tmpdir;
extern my_string master_info_file,relay_log_info_file;
extern my_string opt_relay_logname, opt_relaylog_index_name;
extern bool opt_skip_slave_start;
extern ulong relay_log_space_limit;
struct st_master_info;
/*
......@@ -153,6 +154,9 @@ typedef struct st_relay_log_info
bool log_pos_current;
bool abort_pos_wait;
bool skip_log_purge;
ulonglong log_space_limit,log_space_total;
pthread_mutex_t log_space_lock;
pthread_cond_t log_space_cond;
st_relay_log_info():info_fd(-1),cur_log_fd(-1),inited(0),
cur_log_init_count(0),
......@@ -163,17 +167,21 @@ typedef struct st_relay_log_info
bzero(&info_file,sizeof(info_file));
pthread_mutex_init(&run_lock, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&data_lock, MY_MUTEX_INIT_FAST);
pthread_mutex_init(&log_space_lock, MY_MUTEX_INIT_FAST);
pthread_cond_init(&data_cond, NULL);
pthread_cond_init(&start_cond, NULL);
pthread_cond_init(&stop_cond, NULL);
pthread_cond_init(&log_space_cond, NULL);
}
~st_relay_log_info()
{
pthread_mutex_destroy(&run_lock);
pthread_mutex_destroy(&data_lock);
pthread_mutex_destroy(&log_space_lock);
pthread_cond_destroy(&data_cond);
pthread_cond_destroy(&start_cond);
pthread_cond_destroy(&stop_cond);
pthread_cond_destroy(&log_space_cond);
}
inline void inc_pending(ulonglong val)
{
......
sql/sql_class.h
View file @ 6a5c6b17
......@@ -78,12 +78,29 @@ class MYSQL_LOG {
bool need_start_event;
pthread_cond_t update_cond;
bool no_auto_events; // for relay binlog
ulonglong bytes_written;
friend class Log_event;
public:
MYSQL_LOG();
~MYSQL_LOG();
pthread_mutex_t* get_log_lock() { return &LOCK_log; }
void reset_bytes_written()
{
bytes_written = 0;
}
void harvest_bytes_written(ulonglong* counter)
{
#ifndef DBUG_OFF
char buf1[22],buf2[22];
#endif
DBUG_ENTER("harvest_bytes_written");
(*counter)+=bytes_written;
DBUG_PRINT("info",("counter=%s,bytes_written=%s", llstr(*counter,buf1),
llstr(bytes_written,buf2)));
bytes_written=0;
DBUG_VOID_RETURN;
}
IO_CACHE* get_log_file() { return &log_file; }
void signal_update() { pthread_cond_broadcast(&update_cond);}
void wait_for_update(THD* thd);
......
sql/sql_repl.cc
View file @ 6a5c6b17
......@@ -751,7 +751,7 @@ int change_master(THD* thd, MASTER_INFO* mi)
need_relay_log_purge = 0;
mi->rli.skip_log_purge=1;
strnmov(mi->rli.relay_log_name,lex_mi->relay_log_name,
sizeof(mi->rli.relay_log_name));
sizeof(mi->rli.relay_log_name)-1);
}
if (lex_mi->relay_log_pos)
......
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