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Kirill Smelkov
mariadb
Commits
c058b5a1
Commit
c058b5a1
authored
May 03, 2001
by
jcole@tetra.spaceapes.com
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Merge jcole@work.mysql.com:/home/bk/mysql
into tetra.spaceapes.com:/usr/home/jcole/bk/mysql
parents
a580233a
b1e1d5b0
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BitKeeper/etc/logging_ok
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Docs/manual.texi
Docs/manual.texi
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BitKeeper/etc/logging_ok
View file @
c058b5a1
...
@@ -7,3 +7,4 @@ sasha@mysql.sashanet.com
...
@@ -7,3 +7,4 @@ sasha@mysql.sashanet.com
serg@serg.mysql.com
serg@serg.mysql.com
paul@central.snake.net
paul@central.snake.net
jcole@main.burghcom.com
jcole@main.burghcom.com
jcole@tetra.spaceapes.com
Docs/manual.texi
View file @
c058b5a1
...
@@ -12006,10 +12006,11 @@ communication.
...
@@ -12006,10 +12006,11 @@ communication.
All other information is transferred as text that can be read by anyone
All other information is transferred as text that can be read by anyone
who is able to watch the connection. If you are concerned about this,
who is able to watch the connection. If you are concerned about this,
you can use the compressed protocol (in @strong{MySQL} Version 3.22 and above)
you can use the compressed protocol (in @strong{MySQL} Version 3.22 and above)
to make things much harder. To make things even more secure you should
to make things much harder. To make things even more secure you should use
use @code{ssh} (see @uref{http://www.cs.hut.fi/ssh}). With this, you
@code{ssh}. You can find an open source ssh client at
can get an encrypted TCP/IP connection between a @strong{MySQL} server
@uref{http://www.openssh.org}, and a commercial ssh client at
and a @strong{MySQL} client.
@uref{http://www.ssh.com}. With this, you can get an encrypted TCP/IP
connection between a @strong{MySQL} server and a @strong{MySQL} client.
To make a @strong{MySQL} system secure, you should strongly consider the
To make a @strong{MySQL} system secure, you should strongly consider the
following suggestions:
following suggestions:
...
@@ -24093,43 +24094,43 @@ SUM_OVER_ALL_KEYS(max_length_of_key + sizeof(char*) * 2)
...
@@ -24093,43 +24094,43 @@ SUM_OVER_ALL_KEYS(max_length_of_key + sizeof(char*) * 2)
@end menu
@end menu
@node BDB overview, BDB install, BDB, BDB
@node BDB overview, BDB install, BDB, BDB
@subsection Overview o
ver BDB t
ables
@subsection Overview o
f BDB T
ables
BDB tables are
included in the @strong{MySQL} source distribution
Support for BDB tables is
included in the @strong{MySQL} source distribution
starting from
3.23.34 and will be activated in the @strong{MySQL}-m
ax
starting from
Version 3.23.34 and will be activated in the @strong{MySQL}-M
ax
binary.
binary.
Berkeley
DB (@uref{http://www.sleepycat.com}) has provided
Berkeley
DB, available at @uref{http://www.sleepycat.com/} has provided
@strong{MySQL} with a transaction
-safe table handler. This will survive
@strong{MySQL} with a transaction
al table handler. By using BerkeleyDB
crashes and also provides @code{COMMIT} and @code{ROLLBACK} on
tables, your tables may have a greater chance of surviving crashes, and also
transactions. The @strong{MySQL} source distribution comes with a BDB
provides @code{COMMIT} and @code{ROLLBACK} on transactions. The
distribution that has a couple of small patches to make it work more
@strong{MySQL} source distribution comes with a BDB distribution that has a
smoothly with @strong{MySQL}. You can't use a not-patched @code{BDB}
couple of small patches to make it work more smoothly with @strong{MySQL}.
version with @strong{MySQL}.
You can't use a non-patched @code{BDB}
version with @strong{MySQL}.
We at
MySQL AB are working in close cooperating
with Sleepycat to
We at
@strong{MySQL AB} are working in close cooperation
with Sleepycat to
keep the quality of the @strong{MySQL}
-
BDB interface high.
keep the quality of the @strong{MySQL}
/
BDB interface high.
When it comes to supporting BDB tables, we are committed to help our
When it comes to supporting BDB tables, we are committed to help our
users to locate the problem and help creating a reproducable test case
users to locate the problem and help creating a reproducable test case
for any problems involving BDB tables. Any such test case will be
for any problems involving BDB tables. Any such test case will be
forwarded to Sleepycat who in turn will help us find and fix the
forwarded to Sleepycat who in turn will help us find and fix the
problem. As this is a two stage operati
ng
, any problems with BDB tables
problem. As this is a two stage operati
on
, any problems with BDB tables
may take a little longer for us to fix than for other table handlers
,
may take a little longer for us to fix than for other table handlers
.
but as the Berkeley code itself has been used by many other applications
However, as the BerkeleyDB code itself has been used by many other
than @strong{MySQL} we don't envision any big problems with this.
applications than @strong{MySQL}, we don't envision any big problems with
@xref{Table handler support}.
this.
@xref{Table handler support}.
@node BDB install, BDB start, BDB overview, BDB
@node BDB install, BDB start, BDB overview, BDB
@subsection Installing BDB
@subsection Installing BDB
If you have downloaded a binary version of @strong{MySQL} that includes
If you have downloaded a binary version of @strong{MySQL} that includes
support for Berkeley
DB, simply follow the instructions for
support for Berkeley
DB, simply follow the instructions for installing a
installing a binary version of @strong{MySQL}. @xref{Installing binary}.
binary version of @strong{MySQL}.
@xref{mysqld-max}.
@xref{
Installing binary}. @xref{
mysqld-max}.
To compile @strong{MySQL} with Berkeley DB support, download @strong{MySQL}
To compile @strong{MySQL} with Berkeley DB support, download @strong{MySQL}
3.23.34 or newer and configure @code{MySQL} with the
Version 3.23.34 or newer and configure @code{MySQL} with the
@code{--with-berkeley-db} option. @xref{Installing source}.
@code{--with-berkeley-db} option. @xref{Installing source}.
@example
@example
...
@@ -24137,8 +24138,8 @@ cd /path/to/source/of/mysql-3.23.34
...
@@ -24137,8 +24138,8 @@ cd /path/to/source/of/mysql-3.23.34
./configure --with-berkeley-db
./configure --with-berkeley-db
@end example
@end example
Please refer to the manual provided
by
@code{BDB} distribution for
Please refer to the manual provided
with the
@code{BDB} distribution for
more
/
updated information.
more
updated information.
Even though Berkeley DB is in itself very tested and reliable,
Even though Berkeley DB is in itself very tested and reliable,
the @strong{MySQL} interface is still considered beta quality.
the @strong{MySQL} interface is still considered beta quality.
...
@@ -34282,9 +34283,8 @@ Record file is crashed
...
@@ -34282,9 +34283,8 @@ Record file is crashed
@item
@item
Got error ### from table handler
Got error ### from table handler
To get more information about the error you can do @code{perror
To get more information about the error you can run @code{perror ###}. Here
###}. Here is the most common errors that indicates a problem with the
is the most common errors that indicates a problem with the table:
table:
@example
@example
shell> perror 126 127 132 134 135 136 141 144 145
shell> perror 126 127 132 134 135 136 141 144 145
...
@@ -34302,22 +34302,11 @@ shell> perror 126 127 132 134 135 136 141 144 145
...
@@ -34302,22 +34302,11 @@ shell> perror 126 127 132 134 135 136 141 144 145
Note that error 135, no more room in record file, is not an error that
Note that error 135, no more room in record file, is not an error that
can be fixed by a simple repair. In this case you have to do:
can be fixed by a simple repair. In this case you have to do:
@itemize @bullet
@example
@item
ALTER TABLE table MAX_ROWS=xxx AVG_ROW_LENGTH=yyy;
@code{CREATE TABLE ...} for the table with proper @code{MAX_ROWS} and
@end example
@code{AVG_ROW_LENGTH} values. @xref{CREATE TABLE}.
@item
Copy the data over from the old table with @code{INSERT INTO new_table
SELECT * from old_table}.
@item
Rename the old table to the new table:
@code{RENAME old_table to tmp_table, new_table to old_table}
@item
Delete the old table: @code{DROP TABLE tmp_table}.
@end itemize
@end itemize
In the
se
cases, you must repair your tables. @code{myisamchk}
In the
other
cases, you must repair your tables. @code{myisamchk}
can usually detect and fix most things that go wrong.
can usually detect and fix most things that go wrong.
The repair process involves up to four stages, described below. Before you
The repair process involves up to four stages, described below. Before you
...
@@ -34327,9 +34316,9 @@ that @code{mysqld} runs as (and to you, because you need to access the files
...
@@ -34327,9 +34316,9 @@ that @code{mysqld} runs as (and to you, because you need to access the files
you are checking). If it turns out you need to modify files, they must also
you are checking). If it turns out you need to modify files, they must also
be writable by you.
be writable by you.
If you are using @strong{MySQL} Version 3.23.16 and above, you can (and
should) use the
If you are using @strong{MySQL} Version 3.23.16 and above, you can (and
@code{CHECK} and @code{REPAIR} commands to check and repair @code{MyISAM}
should) use the @code{CHECK} and @code{REPAIR} commands to check and repair
tables. @xref{CHECK TABLE}.
@xref{REPAIR TABLE}.
@code{MyISAM} tables. @xref{CHECK TABLE}.
@xref{REPAIR TABLE}.
The manual section about table maintenance includes the options to
The manual section about table maintenance includes the options to
@code{isamchk}/@code{myisamchk}. @xref{Table maintenance}.
@code{isamchk}/@code{myisamchk}. @xref{Table maintenance}.
...
@@ -36252,6 +36241,10 @@ server closes the connection after 8 hours if nothing has happened. You
...
@@ -36252,6 +36241,10 @@ server closes the connection after 8 hours if nothing has happened. You
can change the time limit by setting the @code{wait_timeout} variable when
can change the time limit by setting the @code{wait_timeout} variable when
you start mysqld.
you start mysqld.
Another common reason to receive the @code{MySQL server has gone away} error
is because you have issued a ``close'' on your @strong{MySQL} connection
and then tried to run a query on the closed connection.
You can check that the @strong{MySQL} hasn't died by executing
You can check that the @strong{MySQL} hasn't died by executing
@code{mysqladmin version} and examining the uptime.
@code{mysqladmin version} and examining the uptime.
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