Commit 148f18fb authored by unknown's avatar unknown

Merge work:/my/mysql into donna.mysql.com:/home/my/bk/mysql


Docs/manual.texi:
  Auto merged
parents 067d2769 3c65e4f8
......@@ -25511,12 +25511,13 @@ system:
@itemize @bullet
@item
Upgrade both slave and master to Version 3.23.15 or higher. We recommend that
you always use the latest release of Version 3.23 on both the slave and the
master. While Version 3.23 is in beta, the versions may be not backwards
compatible. In addition, the newer version will fix some bugs and add
new features. Please, do not report bugs until you have verified that
the problem is present in the latest release.
Upgrade both slave and master to Version 3.23.15 or higher. We recommend
that you always use the latest release of Version 3.23 on both the slave
and the master. The binary log format has also changed a couple of times
during development (before 3.23.29) so you should delete old binary logs
when upgrading @strong{MySQL}. In addition, the newer version will fix
some bugs and add new features. Please, do not report bugs until you
have verified that the problem is present in the latest release.
@item
Set up special replication user(s) on the master with the @code{FILE}
privilege and permission to connect from all the slaves. If the user is
......@@ -25524,16 +25525,18 @@ only doing replication, you don't need to grant him other privileges.
@item
Take a snapshot of all the tables/databases on the master that could
possibly be involved in the update queries before taking the next step.
Starting in Version 3.23.21, there is a command that allows you to
take a snapshot of a table on the master and copy it to the slave, called
@code{LOAD TABLE FROM MASTER}. Until Version 3.23.23, though, it has a serious
bug, and we recommend that you do not use it until you have upgraded.
Starting in Version 3.23.21, there is a command that allows you to take
a snapshot of a table on the master and copy it to the slave, called
@code{LOAD TABLE FROM MASTER}. Until Version 3.23.23, though, it has a
serious bug, and we recommend that you do not use it until you have
upgraded.
@item
In @code{my.cnf} on the master add @code{log-bin} and restart it. Make
sure there are no important updates to the master between the time you
have taken the snapshot and the time the master is restarted with
@code{log-bin} option.
In @code{my.cnf} on the master add @code{log-bin} and
@code{server-id=unique number} and restart it. Make sure there are no
important updates to the master between the time you have taken the
snapshot and the time the master is restarted with @code{log-bin}
option.
@item
Load the snapshot of the master to all the slaves.
@item
......@@ -25543,17 +25546,11 @@ Add the following to @code{my.cnf} on the slave(s):
master-host=<hostname of the master>
master-user=<replication user name>
master-password=<replication user password>
server-id=<some unique number between 1 and 2^32-1>
@end example
replacing the values in <> with what is relevant to your system.
Starting in Version 3.23.26, you must also have on both master and
slave
@example
server-id=<some unique number between 1 and 2^32-1>
@end example
@code{server-id} must be different for each server participating in
replication. If you don't specify a server-id, it will be set to
1 if you have not defined @code{master-host}, else it will be set to 2.
......@@ -25565,6 +25562,17 @@ replication. If you don't specify a server-id, it will be set to
After you have done the above, the master and the slave(s) should be in
sync.
If you have forgot to set server-id for the slave you will get the following
error in the error log file:
@example
Warning: one should set server_id to a non-0 value if master_host is set.
The server will not act as a slave.
@end example
If you have forgot to do this for the master, the slaves will not be able to
connect to the master.
@cindex options, replication
@cindex @code{my.cnf} file
@cindex files,@code{my.cnf}
......@@ -33620,7 +33628,7 @@ Drop or rename @code{old_table}.
@cindex replication
@menu
* Log Replication:: Database replication with update log
* Log Replication:: Database replication with update log
* Backup:: Database backups
* Update log:: The update log
* Binary log:: The binary log
......@@ -33637,12 +33645,13 @@ Now that master-slave internal replication is available starting in
Version 3.23.15, this is the recommended way. @xref{Replication}.
However, it is still possible to replicate a database by using the
update log. @xref{Update log}. This requires one database that acts as a
master (to which data changes are made) and one or more other databases
that act as slaves. To update a slave, just run @code{mysql <
update_log}. Supply host, user, and password options that are
appropriate for the slave database, and use the update log from the
master database as input.
update log or the binary log. @xref{Update log}. This requires one
database that acts as a master (to which data changes are made) and one
or more other databases that act as slaves. To update a slave, just run
@code{mysql < update_log.*} or @code{mysqlbinlog binary_log.* | mysql}.
Supply host, user, and password options that are appropriate for the
slave database, and use the update log from the master database as
input.
If you never delete anything from a table, you can use a @code{TIMESTAMP}
column to find out which rows have been inserted or changed in the table
......@@ -33736,6 +33745,10 @@ a unique key value.
@node Update log, Binary log, Backup, Common problems
@section The Update Log
@strong{NOTE}: The update log is replaced by the binary
log. @xref{Binary log}. With this you can do anything that you can do
with the update log.
When started with the @code{--log-update[=file_name]} option,
@code{mysqld} writes a log file containing all SQL commands that update
data. If no filename is given, it defaults to the name of the host
......@@ -40005,6 +40018,9 @@ though, so Version 3.23 is not released as a stable version yet.
@appendixsubsec Changes in release 3.23.30
@itemize @bullet
@item
Changed BDB tables to not use internal subtransactions and reuse open files to
get more speed.
@item
Added option @code{--mysqld=#} to @code{safe_mysqld}
@item
Allow hex constants in the @code{--fields-*-by} and
......@@ -57,7 +57,6 @@ int mi_status(MI_INFO *info, register MI_ISAMINFO *x, uint flag)
x->index_file_length=info->state->key_file_length;
x->keys = share->state.header.keys;
x->key_map = share->state.key_map;
x->check_time = share->state.check_time;
x->mean_reclength = info->state->records ?
(ulong) (info->state->data_file_length-info->state->empty)/
......@@ -87,6 +86,7 @@ int mi_status(MI_INFO *info, register MI_ISAMINFO *x, uint flag)
x->raid_type= share->base.raid_type;
x->raid_chunks= share->base.raid_chunks;
x->raid_chunksize= share->base.raid_chunksize;
x->key_map = share->state.key_map;
}
if ((flag & HA_STATUS_TIME) && !my_fstat(info->dfile,&state,MYF(0)))
x->update_time=state.st_mtime;
......
......@@ -149,8 +149,10 @@ then
fi
fi
USER=""
if test -w /
then
USER_OPTION="--user=$user"
# If we are root, change the err log to the right user.
touch $err_log; chown $user $err_log
if test -n "$open_files"
......@@ -211,9 +213,9 @@ do
rm -f $MYSQL_UNIX_PORT $pid_file # Some extra safety
if test -z "$args"
then
$NOHUP_NICENESS $ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR --user=$user --pid-file=$pid_file @MYSQLD_DEFAULT_SWITCHES@ >> $err_log 2>&1
$NOHUP_NICENESS $ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR $USER_OPTION --pid-file=$pid_file @MYSQLD_DEFAULT_SWITCHES@ >> $err_log 2>&1
else
eval "$NOHUP_NICENESS $ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR --user=$user --pid-file=$pid_file @MYSQLD_DEFAULT_SWITCHES@ $args >> $err_log 2>&1"
eval "$NOHUP_NICENESS $ledir/$MYSQLD $defaults --basedir=$MY_BASEDIR_VERSION --datadir=$DATADIR $USER_OPTION --pid-file=$pid_file @MYSQLD_DEFAULT_SWITCHES@ $args >> $err_log 2>&1"
fi
if test ! -f $pid_file # This is removed if normal shutdown
then
......
......@@ -796,7 +796,8 @@ int ha_berkeley::write_row(byte * record)
else
{
DB_TXN *sub_trans = transaction;
ulong thd_options = table->in_use->options;
/* Don't use sub transactions in temporary tables (in_use == 0) */
ulong thd_options = table->in_use ? table->in_use->options : 0;
for (uint retry=0 ; retry < berkeley_trans_retry ; retry++)
{
key_map changed_keys = 0;
......@@ -1014,7 +1015,7 @@ int ha_berkeley::update_row(const byte * old_row, byte * new_row)
DBT prim_key, key, old_prim_key;
int error;
DB_TXN *sub_trans;
ulong thd_options = table->in_use->options;
ulong thd_options = table->in_use ? table->in_use->options : 0;
bool primary_key_changed;
DBUG_ENTER("update_row");
......@@ -1112,23 +1113,6 @@ int ha_berkeley::update_row(const byte * old_row, byte * new_row)
break;
}
}
#ifdef BROKEN_CODE_HERE
int new_error;
DBUG_PRINT("error",("Got error %d",error));
if (using_ignore && (thd_options & OPTION_INTERNAL_SUBTRANSACTIONS))
{
DBUG_PRINT("trans",("aborting subtransaction"));
new_error=txn_abort(sub_trans);
}
else if (changed_keys)
new_error=restore_keys(changed_keys, primary_key,
old_row, old_prim_key, new_row, prim_key);
if (new_error)
{
error=new_error; // This shouldn't happen
break;
}
#endif
}
else if (using_ignore && (thd_options & OPTION_INTERNAL_SUBTRANSACTIONS))
{
......@@ -1227,7 +1211,7 @@ int ha_berkeley::delete_row(const byte * record)
int error;
DBT row, prim_key;
key_map keys=table->keys_in_use;
ulong thd_options = table->in_use->options;
ulong thd_options = table->in_use ? table->in_use->options : 0;
DBUG_ENTER("delete_row");
statistic_increment(ha_delete_count,&LOCK_status);
......
......@@ -164,7 +164,7 @@ void kill_one_thread(THD *thd, ulong id);
#define OPTION_INTERNAL_SUBTRANSACTIONS OPTION_QUOTE_SHOW_CREATE*2
/* Set if we are updating a non-transaction safe table */
#define OPTION_STATUS_NO_TRANS_UPDATE OPTION_QUOTE_SHOW_CREATE*2
#define OPTION_STATUS_NO_TRANS_UPDATE OPTION_INTERNAL_SUBTRANSACTIONS*2
/* The following is set when parsing the query */
#define QUERY_NO_INDEX_USED OPTION_STATUS_NO_TRANS_UPDATE*2
......
......@@ -1120,8 +1120,8 @@ terribly wrong\n");
*(ebp+17) : *(ebp+1));
if (new_ebp <= ebp )
{
fprintf(stderr, "New value of ebp failed sanity check\
terminating backtrace\n");
fprintf(stderr, "\
New value of ebp failed sanity check terminating backtrace\n");
return;
}
ebp = new_ebp;
......@@ -1626,14 +1626,14 @@ int main(int argc, char **argv)
#ifdef EXTRA_DEBUG
case 1:
sql_print_error("\
Warning: one should set server_id to a non-0 value if log-bin is enabled.\n\
Will log updates to binary log, but will not accept connections from slaves");
Warning: one should set server-id to a non-0 value if log-bin is enabled.\n\
Will log updates to binary log, but will not accept connections from slaves.");
break;
#endif
case 2:
sql_print_error("\
Warning: one should set server_id to a non-0 value if master_host is set.\n\
The server will not act as a slave");
Warning: one should set server-id to a non-0 value if master_host is set.\n\
The server will not act as a slave.");
break;
}
}
......
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