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1236 lines
28 KiB
1236 lines
28 KiB
'\" t
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.\" Title: \fBmysqlcheck\fR
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.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
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.\" Date: 09/06/2019
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.\" Manual: MySQL Database System
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.\" Source: MySQL 8.0
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.\" Language: English
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.\"
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.TH "\FBMYSQLCHECK\FR" "1" "09/06/2019" "MySQL 8\&.0" "MySQL Database System"
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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mysqlcheck \- a table maintenance program
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|
.SH "SYNOPSIS"
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.HP \w'\fBmysqlcheck\ [\fR\fB\fIoptions\fR\fR\fB]\ [\fR\fB\fIdb_name\fR\fR\fB\ [\fR\fB\fItbl_name\fR\fR\fB\ \&.\&.\&.]]\fR\ 'u
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\fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] [\fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]]\fR
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.SH "DESCRIPTION"
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.PP
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|
The
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\fBmysqlcheck\fR
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client performs table maintenance: It checks, repairs, optimizes, or analyzes tables\&.
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.PP
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|
Each table is locked and therefore unavailable to other sessions while it is being processed, although for check operations, the table is locked with a
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|
READ
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|
lock only (see
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|
Section\ \&13.3.6, \(lqLOCK TABLES and UNLOCK TABLES Syntax\(rq, for more information about
|
|
READ
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|
and
|
|
WRITE
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|
locks)\&. Table maintenance operations can be time\-consuming, particularly for large tables\&. If you use the
|
|
\fB\-\-databases\fR
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|
or
|
|
\fB\-\-all\-databases\fR
|
|
option to process all tables in one or more databases, an invocation of
|
|
\fBmysqlcheck\fR
|
|
might take a long time\&. (This is also true for the MySQL upgrade procedure if it determines that table checking is needed because it processes tables the same way\&.)
|
|
.PP
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|
\fBmysqlcheck\fR
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|
must be used when the
|
|
\fBmysqld\fR
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|
server is running, which means that you do not have to stop the server to perform table maintenance\&.
|
|
.PP
|
|
\fBmysqlcheck\fR
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|
uses the SQL statements
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CHECK TABLE,
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REPAIR TABLE,
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|
ANALYZE TABLE, and
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OPTIMIZE TABLE
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|
in a convenient way for the user\&. It determines which statements to use for the operation you want to perform, and then sends the statements to the server to be executed\&. For details about which storage engines each statement works with, see the descriptions for those statements in
|
|
Section\ \&13.7.3, \(lqTable Maintenance Statements\(rq\&.
|
|
.PP
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|
All storage engines do not necessarily support all four maintenance operations\&. In such cases, an error message is displayed\&. For example, if
|
|
test\&.t
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|
is an
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|
MEMORY
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|
table, an attempt to check it produces this result:
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|
.sp
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|
.if n \{\
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|
.RS 4
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|
.\}
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|
.nf
|
|
shell> \fBmysqlcheck test t\fR
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|
test\&.t
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|
note : The storage engine for the table doesn\*(Aqt support check
|
|
.fi
|
|
.if n \{\
|
|
.RE
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|
.\}
|
|
.PP
|
|
If
|
|
\fBmysqlcheck\fR
|
|
is unable to repair a table, see
|
|
Section\ \&2.11.13, \(lqRebuilding or Repairing Tables or Indexes\(rq
|
|
for manual table repair strategies\&. This will be the case, for example, for
|
|
InnoDB
|
|
tables, which can be checked with
|
|
CHECK TABLE, but not repaired with
|
|
REPAIR TABLE\&.
|
|
.if n \{\
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|
.sp
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|
.\}
|
|
.RS 4
|
|
.it 1 an-trap
|
|
.nr an-no-space-flag 1
|
|
.nr an-break-flag 1
|
|
.br
|
|
.ps +1
|
|
\fBCaution\fR
|
|
.ps -1
|
|
.br
|
|
.PP
|
|
It is best to make a backup of a table before performing a table repair operation; under some circumstances the operation might cause data loss\&. Possible causes include but are not limited to file system errors\&.
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|
.sp .5v
|
|
.RE
|
|
.PP
|
|
There are three general ways to invoke
|
|
\fBmysqlcheck\fR:
|
|
.sp
|
|
.if n \{\
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|
.RS 4
|
|
.\}
|
|
.nf
|
|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]\fR
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|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \-\-databases \fR\fB\fIdb_name\fR\fR\fB \&.\&.\&.\fR
|
|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \-\-all\-databases\fR
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.PP
|
|
If you do not name any tables following
|
|
\fIdb_name\fR
|
|
or if you use the
|
|
\fB\-\-databases\fR
|
|
or
|
|
\fB\-\-all\-databases\fR
|
|
option, entire databases are checked\&.
|
|
.PP
|
|
\fBmysqlcheck\fR
|
|
has a special feature compared to other client programs\&. The default behavior of checking tables (\fB\-\-check\fR) can be changed by renaming the binary\&. If you want to have a tool that repairs tables by default, you should just make a copy of
|
|
\fBmysqlcheck\fR
|
|
named
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|
\fBmysqlrepair\fR, or make a symbolic link to
|
|
\fBmysqlcheck\fR
|
|
named
|
|
\fBmysqlrepair\fR\&. If you invoke
|
|
\fBmysqlrepair\fR, it repairs tables\&.
|
|
.PP
|
|
The names shown in the following table can be used to change
|
|
\fBmysqlcheck\fR
|
|
default behavior\&.
|
|
.TS
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|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Command
|
|
T}:T{
|
|
Meaning
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBmysqlrepair\fR
|
|
T}:T{
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|
The default option is \fB--repair\fR
|
|
T}
|
|
T{
|
|
\fBmysqlanalyze\fR
|
|
T}:T{
|
|
The default option is \fB--analyze\fR
|
|
T}
|
|
T{
|
|
\fBmysqloptimize\fR
|
|
T}:T{
|
|
The default option is \fB--optimize\fR
|
|
T}
|
|
.TE
|
|
.sp 1
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|
.PP
|
|
\fBmysqlcheck\fR
|
|
supports the following options, which can be specified on the command line or in the
|
|
[mysqlcheck]
|
|
and
|
|
[client]
|
|
groups of an option file\&. For information about option files used by MySQL programs, see
|
|
Section\ \&4.2.2.2, \(lqUsing Option Files\(rq\&.
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-help\fR,
|
|
\fB\-?\fR
|
|
.sp
|
|
Display a help message and exit\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-all\-databases\fR,
|
|
\fB\-A\fR
|
|
.sp
|
|
Check all tables in all databases\&. This is the same as using the
|
|
\fB\-\-databases\fR
|
|
option and naming all the databases on the command line, except that the
|
|
INFORMATION_SCHEMA
|
|
and
|
|
performance_schema
|
|
databases are not checked\&. They can be checked by explicitly naming them with the
|
|
\fB\-\-databases\fR
|
|
option\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-all\-in\-1\fR,
|
|
\fB\-1\fR
|
|
.sp
|
|
Instead of issuing a statement for each table, execute a single statement for each database that names all the tables from that database to be processed\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-analyze\fR,
|
|
\fB\-a\fR
|
|
.sp
|
|
Analyze the tables\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-auto\-repair\fR
|
|
.sp
|
|
If a checked table is corrupted, automatically fix it\&. Any necessary repairs are done after all tables have been checked\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-bind\-address=\fR\fB\fIip_address\fR\fR
|
|
.sp
|
|
On a computer having multiple network interfaces, use this option to select which interface to use for connecting to the MySQL server\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-character\-sets\-dir=\fR\fB\fIdir_name\fR\fR
|
|
.sp
|
|
The directory where character sets are installed\&. See
|
|
Section\ \&10.15, \(lqCharacter Set Configuration\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-check\fR,
|
|
\fB\-c\fR
|
|
.sp
|
|
Check the tables for errors\&. This is the default operation\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-check\-only\-changed\fR,
|
|
\fB\-C\fR
|
|
.sp
|
|
Check only tables that have changed since the last check or that have not been closed properly\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-check\-upgrade\fR,
|
|
\fB\-g\fR
|
|
.sp
|
|
Invoke
|
|
CHECK TABLE
|
|
with the
|
|
FOR UPGRADE
|
|
option to check tables for incompatibilities with the current version of the server\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-compress\fR
|
|
.sp
|
|
Compress all information sent between the client and the server if possible\&. See
|
|
Section\ \&4.2.6, \(lqConnection Compression Control\(rq\&.
|
|
.sp
|
|
As of MySQL 8\&.0\&.18, this option is deprecated\&. It will be removed in a future MySQL version\&. See
|
|
the section called \(lqLegacy Connection Compression Configuration\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-compression\-algorithms=\fR\fB\fIvalue\fR\fR
|
|
The permitted compression algorithms for connections to the server\&. The available algorithms are the same as for the
|
|
protocol_compression_algorithms
|
|
system variable\&. The default value is
|
|
uncompressed\&.
|
|
.sp
|
|
For more information, see
|
|
Section\ \&4.2.6, \(lqConnection Compression Control\(rq\&.
|
|
.sp
|
|
This option was added in MySQL 8\&.0\&.18\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-databases\fR,
|
|
\fB\-B\fR
|
|
.sp
|
|
Process all tables in the named databases\&. Normally,
|
|
\fBmysqlcheck\fR
|
|
treats the first name argument on the command line as a database name and any following names as table names\&. With this option, it treats all name arguments as database names\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-debug[=\fR\fB\fIdebug_options\fR\fR\fB]\fR,
|
|
\fB\-# [\fR\fB\fIdebug_options\fR\fR\fB]\fR
|
|
.sp
|
|
Write a debugging log\&. A typical
|
|
\fIdebug_options\fR
|
|
string is
|
|
d:t:o,\fIfile_name\fR\&. The default is
|
|
d:t:o\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-debug\-check\fR
|
|
.sp
|
|
Print some debugging information when the program exits\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-debug\-info\fR
|
|
.sp
|
|
Print debugging information and memory and CPU usage statistics when the program exits\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-default\-character\-set=\fR\fB\fIcharset_name\fR\fR
|
|
.sp
|
|
Use
|
|
\fIcharset_name\fR
|
|
as the default character set\&. See
|
|
Section\ \&10.15, \(lqCharacter Set Configuration\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-defaults\-extra\-file=\fR\fB\fIfile_name\fR\fR
|
|
.sp
|
|
Read this option file after the global option file but (on Unix) before the user option file\&. If the file does not exist or is otherwise inaccessible, an error occurs\&.
|
|
\fIfile_name\fR
|
|
is interpreted relative to the current directory if given as a relative path name rather than a full path name\&.
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-defaults\-file=\fR\fB\fIfile_name\fR\fR
|
|
.sp
|
|
Use only the given option file\&. If the file does not exist or is otherwise inaccessible, an error occurs\&.
|
|
\fIfile_name\fR
|
|
is interpreted relative to the current directory if given as a relative path name rather than a full path name\&.
|
|
.sp
|
|
Exception: Even with
|
|
\fB\-\-defaults\-file\fR, client programs read
|
|
\&.mylogin\&.cnf\&.
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-defaults\-group\-suffix=\fR\fB\fIstr\fR\fR
|
|
.sp
|
|
Read not only the usual option groups, but also groups with the usual names and a suffix of
|
|
\fIstr\fR\&. For example,
|
|
\fBmysqlcheck\fR
|
|
normally reads the
|
|
[client]
|
|
and
|
|
[mysqlcheck]
|
|
groups\&. If the
|
|
\fB\-\-defaults\-group\-suffix=_other\fR
|
|
option is given,
|
|
\fBmysqlcheck\fR
|
|
also reads the
|
|
[client_other]
|
|
and
|
|
[mysqlcheck_other]
|
|
groups\&.
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-extended\fR,
|
|
\fB\-e\fR
|
|
.sp
|
|
If you are using this option to check tables, it ensures that they are 100% consistent but takes a long time\&.
|
|
.sp
|
|
If you are using this option to repair tables, it runs an extended repair that may not only take a long time to execute, but may produce a lot of garbage rows also!
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-default\-auth=\fR\fB\fIplugin\fR\fR
|
|
.sp
|
|
A hint about which client\-side authentication plugin to use\&. See
|
|
Section\ \&6.2.17, \(lqPluggable Authentication\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-enable\-cleartext\-plugin\fR
|
|
.sp
|
|
Enable the
|
|
mysql_clear_password
|
|
cleartext authentication plugin\&. (See
|
|
Section\ \&6.4.1.4, \(lqClient-Side Cleartext Pluggable Authentication\(rq\&.)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-fast\fR,
|
|
\fB\-F\fR
|
|
.sp
|
|
Check only tables that have not been closed properly\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-force\fR,
|
|
\fB\-f\fR
|
|
.sp
|
|
Continue even if an SQL error occurs\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-get\-server\-public\-key\fR
|
|
.sp
|
|
Request from the server the public key required for RSA key pair\-based password exchange\&. This option applies to clients that authenticate with the
|
|
caching_sha2_password
|
|
authentication plugin\&. For that plugin, the server does not send the public key unless requested\&. This option is ignored for accounts that do not authenticate with that plugin\&. It is also ignored if RSA\-based password exchange is not used, as is the case when the client connects to the server using a secure connection\&.
|
|
.sp
|
|
If
|
|
\fB\-\-server\-public\-key\-path=\fR\fB\fIfile_name\fR\fR
|
|
is given and specifies a valid public key file, it takes precedence over
|
|
\fB\-\-get\-server\-public\-key\fR\&.
|
|
.sp
|
|
For information about the
|
|
caching_sha2_password
|
|
plugin, see
|
|
Section\ \&6.4.1.3, \(lqCaching SHA-2 Pluggable Authentication\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-host=\fR\fB\fIhost_name\fR\fR,
|
|
\fB\-h \fR\fB\fIhost_name\fR\fR
|
|
.sp
|
|
Connect to the MySQL server on the given host\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-login\-path=\fR\fB\fIname\fR\fR
|
|
.sp
|
|
Read options from the named login path in the
|
|
\&.mylogin\&.cnf
|
|
login path file\&. A
|
|
\(lqlogin path\(rq
|
|
is an option group containing options that specify which MySQL server to connect to and which account to authenticate as\&. To create or modify a login path file, use the
|
|
\fBmysql_config_editor\fR
|
|
utility\&. See
|
|
\fBmysql_config_editor\fR(1)\&.
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-medium\-check\fR,
|
|
\fB\-m\fR
|
|
.sp
|
|
Do a check that is faster than an
|
|
\fB\-\-extended\fR
|
|
operation\&. This finds only 99\&.99% of all errors, which should be good enough in most cases\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-no\-defaults\fR
|
|
.sp
|
|
Do not read any option files\&. If program startup fails due to reading unknown options from an option file,
|
|
\fB\-\-no\-defaults\fR
|
|
can be used to prevent them from being read\&.
|
|
.sp
|
|
The exception is that the
|
|
\&.mylogin\&.cnf
|
|
file, if it exists, is read in all cases\&. This permits passwords to be specified in a safer way than on the command line even when
|
|
\fB\-\-no\-defaults\fR
|
|
is used\&. (\&.mylogin\&.cnf
|
|
is created by the
|
|
\fBmysql_config_editor\fR
|
|
utility\&. See
|
|
\fBmysql_config_editor\fR(1)\&.)
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-optimize\fR,
|
|
\fB\-o\fR
|
|
.sp
|
|
Optimize the tables\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-password[=\fR\fB\fIpassword\fR\fR\fB]\fR,
|
|
\fB\-p[\fR\fB\fIpassword\fR\fR\fB]\fR
|
|
.sp
|
|
The password of the MySQL account used for connecting to the server\&. The password value is optional\&. If not given,
|
|
\fBmysqlcheck\fR
|
|
prompts for one\&. If given, there must be
|
|
\fIno space\fR
|
|
between
|
|
\fB\-\-password=\fR
|
|
or
|
|
\fB\-p\fR
|
|
and the password following it\&. If no password option is specified, the default is to send no password\&.
|
|
.sp
|
|
Specifying a password on the command line should be considered insecure\&. To avoid giving the password on the command line, use an option file\&. See
|
|
Section\ \&6.1.2.1, \(lqEnd-User Guidelines for Password Security\(rq\&.
|
|
.sp
|
|
To explicitly specify that there is no password and that
|
|
\fBmysqlcheck\fR
|
|
should not prompt for one, use the
|
|
\fB\-\-skip\-password\fR
|
|
option\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-pipe\fR,
|
|
\fB\-W\fR
|
|
.sp
|
|
On Windows, connect to the server using a named pipe\&. This option applies only if the server was started with the
|
|
named_pipe
|
|
system variable enabled to support named\-pipe connections\&. In addition, the user making the connection must be a member of the Windows group specified by the
|
|
named_pipe_full_access_group
|
|
system variable\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-plugin\-dir=\fR\fB\fIdir_name\fR\fR
|
|
.sp
|
|
The directory in which to look for plugins\&. Specify this option if the
|
|
\fB\-\-default\-auth\fR
|
|
option is used to specify an authentication plugin but
|
|
\fBmysqlcheck\fR
|
|
does not find it\&. See
|
|
Section\ \&6.2.17, \(lqPluggable Authentication\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-port=\fR\fB\fIport_num\fR\fR,
|
|
\fB\-P \fR\fB\fIport_num\fR\fR
|
|
.sp
|
|
For TCP/IP connections, the port number to use\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-print\-defaults\fR
|
|
.sp
|
|
Print the program name and all options that it gets from option files\&.
|
|
.sp
|
|
For additional information about this and other option\-file options, see
|
|
Section\ \&4.2.2.3, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-protocol={TCP|SOCKET|PIPE|MEMORY}\fR
|
|
.sp
|
|
The connection protocol to use for connecting to the server\&. It is useful when the other connection parameters normally result in use of a protocol other than the one you want\&. For details on the permissible values, see
|
|
Section\ \&4.2.4, \(lqConnecting to the MySQL Server Using Command Options\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-quick\fR,
|
|
\fB\-q\fR
|
|
.sp
|
|
If you are using this option to check tables, it prevents the check from scanning the rows to check for incorrect links\&. This is the fastest check method\&.
|
|
.sp
|
|
If you are using this option to repair tables, it tries to repair only the index tree\&. This is the fastest repair method\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-repair\fR,
|
|
\fB\-r\fR
|
|
.sp
|
|
Perform a repair that can fix almost anything except unique keys that are not unique\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-secure\-auth\fR
|
|
.sp
|
|
This option was removed in MySQL 8\&.0\&.3\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-server\-public\-key\-path=\fR\fB\fIfile_name\fR\fR
|
|
.sp
|
|
The path name to a file containing a client\-side copy of the public key required by the server for RSA key pair\-based password exchange\&. The file must be in PEM format\&. This option applies to clients that authenticate with the
|
|
sha256_password
|
|
or
|
|
caching_sha2_password
|
|
authentication plugin\&. This option is ignored for accounts that do not authenticate with one of those plugins\&. It is also ignored if RSA\-based password exchange is not used, as is the case when the client connects to the server using a secure connection\&.
|
|
.sp
|
|
If
|
|
\fB\-\-server\-public\-key\-path=\fR\fB\fIfile_name\fR\fR
|
|
is given and specifies a valid public key file, it takes precedence over
|
|
\fB\-\-get\-server\-public\-key\fR\&.
|
|
.sp
|
|
For
|
|
sha256_password, this option applies only if MySQL was built using OpenSSL\&.
|
|
.sp
|
|
For information about the
|
|
sha256_password
|
|
and
|
|
caching_sha2_password
|
|
plugins, see
|
|
Section\ \&6.4.1.2, \(lqSHA-256 Pluggable Authentication\(rq, and
|
|
Section\ \&6.4.1.3, \(lqCaching SHA-2 Pluggable Authentication\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-shared\-memory\-base\-name=\fR\fB\fIname\fR\fR
|
|
.sp
|
|
On Windows, the shared\-memory name to use for connections made using shared memory to a local server\&. The default value is
|
|
MYSQL\&. The shared\-memory name is case\-sensitive\&.
|
|
.sp
|
|
This option applies only if the server was started with the
|
|
shared_memory
|
|
system variable enabled to support shared\-memory connections\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-silent\fR,
|
|
\fB\-s\fR
|
|
.sp
|
|
Silent mode\&. Print only error messages\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-skip\-database=\fR\fB\fIdb_name\fR\fR
|
|
.sp
|
|
Do not include the named database (case\-sensitive) in the operations performed by
|
|
\fBmysqlcheck\fR\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-socket=\fR\fB\fIpath\fR\fR,
|
|
\fB\-S \fR\fB\fIpath\fR\fR
|
|
.sp
|
|
For connections to
|
|
localhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use\&.
|
|
.sp
|
|
On Windows, this option applies only if the server was started with the
|
|
named_pipe
|
|
system variable enabled to support named\-pipe connections\&. In addition, the user making the connection must be a member of the Windows group specified by the
|
|
named_pipe_full_access_group
|
|
system variable\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ssl*\fR
|
|
.sp
|
|
Options that begin with
|
|
\fB\-\-ssl\fR
|
|
specify whether to connect to the server using SSL and indicate where to find SSL keys and certificates\&. See
|
|
the section called \(lqCommand Options for Encrypted Connections\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ssl\-fips\-mode={OFF|ON|STRICT}\fR
|
|
Controls whether to enable FIPS mode on the client side\&. The
|
|
\fB\-\-ssl\-fips\-mode\fR
|
|
option differs from other
|
|
\fB\-\-ssl\-\fR\fB\fIxxx\fR\fR
|
|
options in that it is not used to establish encrypted connections, but rather to affect which cryptographic operations are permitted\&. See
|
|
Section\ \&6.5, \(lqFIPS Support\(rq\&.
|
|
.sp
|
|
These
|
|
\fB\-\-ssl\-fips\-mode\fR
|
|
values are permitted:
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
OFF: Disable FIPS mode\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
ON: Enable FIPS mode\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
STRICT: Enable
|
|
\(lqstrict\(rq
|
|
FIPS mode\&.
|
|
.RE
|
|
.sp
|
|
.if n \{\
|
|
.sp
|
|
.\}
|
|
.RS 4
|
|
.it 1 an-trap
|
|
.nr an-no-space-flag 1
|
|
.nr an-break-flag 1
|
|
.br
|
|
.ps +1
|
|
\fBNote\fR
|
|
.ps -1
|
|
.br
|
|
If the OpenSSL FIPS Object Module is not available, the only permitted value for
|
|
\fB\-\-ssl\-fips\-mode\fR
|
|
is
|
|
OFF\&. In this case, setting
|
|
\fB\-\-ssl\-fips\-mode\fR
|
|
to
|
|
ON
|
|
or
|
|
STRICT
|
|
causes the client to produce a warning at startup and to operate in non\-FIPS mode\&.
|
|
.sp .5v
|
|
.RE
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-tables\fR
|
|
.sp
|
|
Override the
|
|
\fB\-\-databases\fR
|
|
or
|
|
\fB\-B\fR
|
|
option\&. All name arguments following the option are regarded as table names\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-tls\-ciphersuites=\fR\fB\fIciphersuite_list\fR\fR
|
|
.sp
|
|
The permissible ciphersuites for encrypted connections that use TLSv1\&.3\&. The value is a list of one or more colon\-separated ciphersuite names\&. The ciphersuites that can be named for this option depend on the SSL library used to compile MySQL\&. For details, see
|
|
Section\ \&6.3.2, \(lqEncrypted Connection TLS Protocols and Ciphers\(rq\&.
|
|
.sp
|
|
This option was added in MySQL 8\&.0\&.16\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-tls\-version=\fR\fB\fIprotocol_list\fR\fR
|
|
.sp
|
|
The permissible TLS protocols for encrypted connections\&. The value is a list of one or more comma\-separated protocol names\&. The protocols that can be named for this option depend on the SSL library used to compile MySQL\&. For details, see
|
|
Section\ \&6.3.2, \(lqEncrypted Connection TLS Protocols and Ciphers\(rq\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-use\-frm\fR
|
|
.sp
|
|
For repair operations on
|
|
MyISAM
|
|
tables, get the table structure from the data dictionary so that the table can be repaired even if the
|
|
\&.MYI
|
|
header is corrupted\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-user=\fR\fB\fIuser_name\fR\fR,
|
|
\fB\-u \fR\fB\fIuser_name\fR\fR
|
|
.sp
|
|
The user name of the MySQL account to use for connecting to the server\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-verbose\fR,
|
|
\fB\-v\fR
|
|
.sp
|
|
Verbose mode\&. Print information about the various stages of program operation\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-version\fR,
|
|
\fB\-V\fR
|
|
.sp
|
|
Display version information and exit\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-write\-binlog\fR
|
|
.sp
|
|
This option is enabled by default, so that
|
|
ANALYZE TABLE,
|
|
OPTIMIZE TABLE, and
|
|
REPAIR TABLE
|
|
statements generated by
|
|
\fBmysqlcheck\fR
|
|
are written to the binary log\&. Use
|
|
\fB\-\-skip\-write\-binlog\fR
|
|
to cause
|
|
NO_WRITE_TO_BINLOG
|
|
to be added to the statements so that they are not logged\&. Use the
|
|
\fB\-\-skip\-write\-binlog\fR
|
|
when these statements should not be sent to replication slaves or run when using the binary logs for recovery from backup\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-zstd\-compression\-level=\fR\fB\fIlevel\fR\fR
|
|
The compression level to use for connections to the server that use the
|
|
zstd
|
|
compression algorithm\&. The permitted levels are from 1 to 22, with larger values indicating increasing levels of compression\&. The default
|
|
zstd
|
|
compression level is 3\&. The compression level setting has no effect on connections that do not use
|
|
zstd
|
|
compression\&.
|
|
.sp
|
|
For more information, see
|
|
Section\ \&4.2.6, \(lqConnection Compression Control\(rq\&.
|
|
.sp
|
|
This option was added in MySQL 8\&.0\&.18\&.
|
|
.RE
|
|
.SH "COPYRIGHT"
|
|
.br
|
|
.PP
|
|
Copyright \(co 1997, 2019, Oracle and/or its affiliates. All rights reserved.
|
|
.PP
|
|
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
|
|
.PP
|
|
This documentation 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.
|
|
.PP
|
|
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
|
|
.sp
|
|
.SH "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/.
|
|
.SH AUTHOR
|
|
Oracle Corporation (http://dev.mysql.com/).
|
|
|