mysql_upgrade
(1)
名前
mysql_upgrade - check and upgrade MySQL tables
形式
mysql_upgrade [options]
説明
MySQL Database System MYSQL_UPGRADE(1)
NAME
mysql_upgrade - check and upgrade MySQL tables
SYNOPSIS
mysql_upgrade [options]
DESCRIPTION
mysql_upgrade examines all tables in all databases for
incompatibilities with the current version of MySQL Server.
mysql_upgrade also upgrades the system tables so that you
can take advantage of new privileges or capabilities that
might have been added.
mysql_upgrade should be executed each time you upgrade
MySQL.
If mysql_upgrade finds that a table has a possible
incompatibility, it performs a table check and, if problems
are found, attempts a table repair. If the table cannot be
repaired, see Section 2.12.4, "Rebuilding or Repairing
Tables or Indexes" for manual table repair strategies.
Note
On Windows Server 2008, Vista, and newer, you must run
mysql_upgrade with administrator privileges. You can do
this by running a Command Prompt as Administrator and
running the command. Failure to do so may result in the
upgrade failing to execute correctly.
Caution
You should always back up your current MySQL
installation before performing an upgrade. See
Section 7.2, "Database Backup Methods".
Some upgrade incompatibilities may require special
handling before you upgrade your MySQL installation and
run mysql_upgrade. See Section 2.12.1, "Upgrading
MySQL", for instructions on determining whether any such
incompatibilities apply to your installation and how to
handle them.
To use mysql_upgrade, make sure that the server is running,
and then invoke it like this:
shell> mysql_upgrade [options]
After running mysql_upgrade, stop the server and restart it
so that any changes made to the system tables take effect.
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mysql_upgrade executes the following commands to check and
repair tables and to upgrade the system tables:
mysqlcheck --all-databases --check-upgrade --auto-repair
mysql < fix_priv_tables
mysqlcheck --all-databases --check-upgrade --fix-db-names --fix-table-names
Notes about the preceding commands:
o Because mysql_upgrade invokes mysqlcheck with the
--all-databases option, it processes all tables in all
databases, which might take a long time to complete.
Each table is locked and therefore unavailable to other
sessions while it is being processed. Check and repair
operations can be time-consuming, particularly for large
tables.
o For details about what checks the --check-upgrade option
entails, see the description of the FOR UPGRADE option
of the CHECK TABLE statement (see Section 13.7.2.2,
"CHECK TABLE Syntax").
o fix_priv_tables represents a script generated internally
by mysql_upgrade that contains SQL statements to upgrade
the tables in the mysql database.
All checked and repaired tables are marked with the current
MySQL version number. This ensures that next time you run
mysql_upgrade with the same version of the server, it can
tell whether there is any need to check or repair the table
again.
mysql_upgrade also saves the MySQL version number in a file
named mysql_upgrade_info in the data directory. This is used
to quickly check whether all tables have been checked for
this release so that table-checking can be skipped. To
ignore this file and perform the check regardless, use the
--force option.
If you install MySQL from RPM packages on Linux, you must
install the server and client RPMs. mysql_upgrade is
included in the server RPM but requires the client RPM
because the latter includes mysqlcheck. (See Section 2.5.1,
"Installing MySQL from RPM Packages on Linux".)
mysql_upgrade does not upgrade the contents of the help
tables. For upgrade instructions, see Section 5.1.10,
"Server-Side Help".
mysql_upgrade supports the following options, which can be
specified on the command line or in the [mysql_upgrade] and
[client] groups of an option file. Other options are passed
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to mysqlcheck. For example, it might be necessary to specify
the --password[=password] option. mysql_upgrade also
supports the options for processing option files described
at Section 4.2.3.4, "Command-Line Options that Affect
Option-File Handling".
o --help
Display a short help message and exit.
o --basedir=path
The path to the MySQL installation directory. This
option is accepted for backward compatibility but
ignored.
o --datadir=path
The path to the data directory. This option is accepted
for backward compatibility but ignored.
o --debug-check
Print some debugging information when the program exits.
o --debug-info, -T
Print debugging information and memory and CPU usage
statistics when the program exits.
o --default-auth=plugin
The client-side authentication plugin to use. See
Section 6.3.6, "Pluggable Authentication".
This option was added in MySQL 5.5.10.
o --force
Ignore the mysql_upgrade_info file and force execution
of mysqlcheck even if mysql_upgrade has already been
executed for the current version of MySQL.
o --plugin-dir=path
The directory in which to look for plugins. It may be
necessary to specify this option if the --default-auth
option is used to specify an authentication plugin but
mysql_upgrade does not find it. See Section 6.3.6,
"Pluggable Authentication".
This option was added in MySQL 5.5.10.
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o --tmpdir=path, -t path
The path name of the directory to use for creating
temporary files.
o --upgrade-system-tables, -s
Upgrade only the system tables, do not upgrade data.
o --user=user_name, -u user_name
The MySQL user name to use when connecting to the
server. The default user name is root.
o --verbose
Verbose mode. Print more information about what the
program does.
o --version-check, -k
Check the version of the server to which mysql_upgrade
is connecting to verify that it is the same as the
version for which mysql_upgrade was built. If not,
mysql_upgrade exits. This option is enabled by default;
to disable the check, use --skip-version-check. This
option was added in MySQL 5.5.32.
o --write-binlog
Cause binary logging to be enabled while mysql_upgrade
runs. This is the default behavior; to disable binary
logging during the upgrade, use the inverse of this
option (that is, start the program with
--skip-write-binlog).
COPYRIGHT
Copyright (C) 1997, 2013, Oracle and/or its affiliates. All
rights reserved.
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any means. Reverse engineering, disassembly, or
decompilation of this software, unless required by law for
interoperability, is prohibited.
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The information contained herein is subject to change
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ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
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+---------------+-------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-------------------+
|Availability | database/mysql-55 |
+---------------+-------------------+
|Stability | Uncommitted |
+---------------+-------------------+
SEE ALSO
For more information, please refer to the MySQL Reference
Manual, which may already be installed locally and which is
also available online at http://dev.mysql.com/doc/.
AUTHOR
Oracle Corporation (http://dev.mysql.com/).
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.31.tar.gz
Further information about this software can be found on the
open source community website at http://dev.mysql.com/.
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