path: root/man/mariadb-slap.1

'\" t
.\"
.TH "\FBMARIADB-SLAP\FR" "1" "15 May 2020" "MariaDB 10\&.10" "MariaDB Database System"
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
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.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.\" mysqlslap
.\" load emulation
.SH "NAME"
mariadb-slap \- load emulation client (mysqlslap is now a symlink to mariadb-slap)
.SH "SYNOPSIS"
.HP \w'\fBmysqlslap\ [\fR\fB\fIoptions\fR\fR\fB]\fR\ 'u
\fBmysqlslap [\fR\fB\fIoptions\fR\fR\fB]\fR
.SH "DESCRIPTION"
.PP
\fBmysqlslap\fR
is a diagnostic program designed to emulate client load for a MariaDB server and to report the timing of each stage\&. It works as if multiple clients are accessing the server\&.
.PP
Invoke
\fBmysqlslap\fR
like this:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysqlslap [\fR\fB\fIoptions\fR\fR\fB]\fR
.fi
.if n \{\
.RE
.\}
.PP
Some options such as
\fB\-\-create\fR
or
\fB\-\-query\fR
enable you to specify a string containing an SQL statement or a file containing statements\&. If you specify a file, by default it must contain one statement per line\&. (That is, the implicit statement delimiter is the newline character\&.) Use the
\fB\-\-delimiter\fR
option to specify a different delimiter, which enables you to specify statements that span multiple lines or place multiple statements on a single line\&. You cannot include comments in a file;
\fBmysqlslap\fR
does not understand them\&.
.PP
\fBmysqlslap\fR
runs in three stages:
.sp
.RS 4
.ie n \{\
\h'-04' 1.\h'+01'\c
.\}
.el \{\
.sp -1
.IP "  1." 4.2
.\}
Create schema, table, and optionally any stored programs or data you want to using for the test\&. This stage uses a single client connection\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04' 2.\h'+01'\c
.\}
.el \{\
.sp -1
.IP "  2." 4.2
.\}
Run the load test\&. This stage can use many client connections\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04' 3.\h'+01'\c
.\}
.el \{\
.sp -1
.IP "  3." 4.2
.\}
Clean up (disconnect, drop table if specified)\&. This stage uses a single client connection\&.
.RE
.PP
Examples:
.PP
Supply your own create and query SQL statements, with 50 clients querying and 200 selects for each:
.sp
.if n \{\
.RS 4
.\}
.nf
mysqlslap \-\-delimiter=";" \e
  \-\-create="CREATE TABLE a (b int);INSERT INTO a VALUES (23)" \e
  \-\-query="SELECT * FROM a" \-\-concurrency=50 \-\-iterations=200
.fi
.if n \{\
.RE
.\}
.PP
Let
\fBmysqlslap\fR
build the query SQL statement with a table of two
INT
columns and three
VARCHAR
columns\&. Use five clients querying 20 times each\&. Do not create the table or insert the data (that is, use the previous test\'s schema and data):
.sp
.if n \{\
.RS 4
.\}
.nf
mysqlslap \-\-concurrency=5 \-\-iterations=20 \e
  \-\-number\-int\-cols=2 \-\-number\-char\-cols=3 \e
  \-\-auto\-generate\-sql
.fi
.if n \{\
.RE
.\}
.PP
Tell the program to load the create, insert, and query SQL statements from the specified files, where the
create\&.sql
file has multiple table creation statements delimited by
\';\'
and multiple insert statements delimited by
\';\'\&. The
\fB\-\-query\fR
file will have multiple queries delimited by
\';\'\&. Run all the load statements, then run all the queries in the query file with five clients (five times each):
.sp
.if n \{\
.RS 4
.\}
.nf
mysqlslap \-\-concurrency=5 \e
  \-\-iterations=5 \-\-query=query\&.sql \-\-create=create\&.sql \e
  \-\-delimiter=";"
.fi
.if n \{\
.RE
.\}
.PP
\fBmysqlslap\fR
supports the following options, which can be specified on the command line or in the
[mysqlslap]
and
[client]
option file groups\&.
\fBmysqlslap\fR
also supports the options for processing option files\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: help option
.\" help option: mysqlslap
\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
.\}
.\" mysqlslap: auto-generate-sql option
.\" auto-generate-sql option: mysqlslap
\fB\-\-auto\-generate\-sql\fR,
\fB\-a\fR
.sp
Generate SQL statements automatically when they are not supplied in files or via command options\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-add-autoincrement option
.\" auto-generate-sql-add-autoincrement option: mysqlslap
\fB\-\-auto\-generate\-sql\-add\-autoincrement\fR
.sp
Add an
AUTO_INCREMENT
column to automatically generated tables\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-execute-number option
.\" auto-generate-sql-execute-number option: mysqlslap
\fB\-\-auto\-generate\-sql\-execute\-number=\fR\fB\fIN\fR\fR
.sp
Specify how many queries to generate automatically\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-guid-primary option
.\" auto-generate-sql-guid-primary option: mysqlslap
\fB\-\-auto\-generate\-sql\-guid\-primary\fR
.sp
Add a GUID\-based primary key to automatically generated tables\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-load-type option
.\" auto-generate-sql-load-type option: mysqlslap
\fB\-\-auto\-generate\-sql\-load\-type=\fR\fB\fItype\fR\fR
.sp
Specify the test load type\&. The allowable values are
read
(scan tables),
write
(insert into tables),
key
(read primary keys),
update
(update primary keys), or
mixed
(half inserts, half scanning selects)\&. The default is
mixed\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-secondary-indexes option
.\" auto-generate-sql-secondary-indexes option: mysqlslap
\fB\-\-auto\-generate\-sql\-secondary\-indexes=\fR\fB\fIN\fR\fR
.sp
Specify how many secondary indexes to add to automatically generated tables\&. By default, none are added\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-unique-query-number option
.\" auto-generate-sql-unique-query-number option: mysqlslap
\fB\-\-auto\-generate\-sql\-unique\-query\-number=\fR\fB\fIN\fR\fR
.sp
How many different queries to generate for automatic tests\&. For example, if you run a
key
test that performs 1000 selects, you can use this option with a value of 1000 to run 1000 unique queries, or with a value of 50 to perform 50 different selects\&. The default is 10\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-unique-write-number option
.\" auto-generate-sql-unique-write-number option: mysqlslap
\fB\-\-auto\-generate\-sql\-unique\-write\-number=\fR\fB\fIN\fR\fR
.sp
How many different queries to generate for
\fB\-\-auto\-generate\-sql\-write\-number\fR\&. The default is 10\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: auto-generate-sql-write-number option
.\" auto-generate-sql-write-number option: mysqlslap
\fB\-\-auto\-generate\-sql\-write\-number=\fR\fB\fIN\fR\fR
.sp
How many row inserts to perform on each thread\&. The default is 100\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: commit option
.\" commit option: mysqlslap
\fB\-\-commit=\fR\fB\fIN\fR\fR
.sp
How many statements to execute before committing\&. The default is 0 (no commits are done)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: compress option
.\" compress option: mysqlslap
\fB\-\-compress\fR,
\fB\-C\fR
.sp
Compress all information sent between the client and the server if both support compression\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: concurrency option
.\" concurrency option: mysqlslap
\fB\-\-concurrency=\fR\fB\fIN\fR\fR,
\fB\-c \fR\fB\fIN\fR\fR
.sp
The number of clients to simulate when issuing the
SELECT
statement\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: create option
.\" create option: mysqlslap
\fB\-\-create=\fR\fB\fIvalue\fR\fR
.sp
The file or string containing the statement to use for creating the table\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: create-schema option
.\" create-schema option: mysqlslap
\fB\-\-create\-schema=\fR\fB\fIvalue\fR\fR
.sp
The schema in which to run the tests\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: csv option
.\" csv option: mysqlslap
\fB\-\-csv[=\fR\fB\fIfile_name\fR\fR\fB]\fR
.sp
Generate output in comma\-separated values format\&. The output goes to the named file, or to the standard output if no file is given\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: debug option
.\" debug option: mysqlslap
\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,/tmp/mysqlslap\&.trace\'\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: debug-check option
.\" debug-check option: mysqlslap
\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
.\}
.\" mysqlslap: debug-info option
.\" debug-info option: mysqlslap
\fB\-\-debug\-info\fR,
\fB\-T\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
.\}
.\" mysqlslap: default-auth option
.\" default-auth option: mysqlslap
\fB\-\-default\-auth=\fR\fB\fIname\fR
.sp
Default authentication client-side plugin to use\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: defaults-extra-file option
.\" defaults-extra-file option: mysqlslap
\fB\-\-defaults\-extra\-file=\fR\fB\fIfilename\fR\fR
.sp
Set \fB\fIfilename\fR\fR as the file to read default options from after the global defaults files has been
read\&.  Must be given as first option\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: defaults-file option
.\" defaults-file option: mysqlslap
\fB\-\-defaults\-file=\fR\fB\fIfilename\fR\fR
.sp
Set \fB\fIfilename\fR\fR as the file to read default options from, override global defaults files\&.
Must be given as first option\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: delimiter option
.\" delimiter option: mysqlslap
\fB\-\-delimiter=\fR\fB\fIstr\fR\fR,
\fB\-F \fR\fB\fIstr\fR\fR
.sp
The delimiter to use in SQL statements supplied in files or via command options\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: detach option
.\" detach option: mysqlslap
\fB\-\-detach=\fR\fB\fIN\fR\fR
.sp
Detach (close and reopen) each connection after each
\fIN\fR
statements\&. The default is 0 (connections are not detached)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: engine option
.\" engine option: mysqlslap
\fB\-\-engine=\fR\fB\fIengine_name\fR\fR,
\fB\-e \fR\fB\fIengine_name\fR\fR
.sp
Comma separated list of storage engines to use for creating the table\&. The test is run for 
each engine\&. You can also specify an option for an engine after a colon, for example
\fBmemory:max_row=2300\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: host option
.\" host option: mysqlslap
\fB\-\-host=\fR\fB\fIhost_name\fR\fR,
\fB\-h \fR\fB\fIhost_name\fR\fR
.sp
Connect to the MariaDB server on the given host\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: init-command option
.\" init-command option: mysqlslap
\fB\-\-init\-command=str\fR
.sp
SQL Command to execute when connecting to MariaDB server\&. Will automatically be re\-executed when reconnecting\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: iterations option
.\" iterations option: mysqlslap
\fB\-\-iterations=\fR\fB\fIN\fR\fR,
\fB\-i \fR\fB\fIN\fR\fR
.sp
The number of times to run the tests\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: no-defaults option
.\" no-defaults option: mysqlslap
\fB\-\-no\-defaults\fR
.sp
Do not read default options from any option file\&. This must be given as the
first argument\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: no-drop option
.\" no-drop option: mysqlslap
\fB\-\-no\-drop\fR
.sp
Do not drop any schema created during the test after the test is complete\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: number-char-cols option
.\" number-char-cols option: mysqlslap
\fB\-\-number\-char\-cols=\fR\fB\fIN\fR\fR,
\fB\-x \fR\fB\fIN\fR\fR
.sp
The number of
VARCHAR
columns to use if
\fB\-\-auto\-generate\-sql\fR
is specified\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: number-int-cols option
.\" number-int-cols option: mysqlslap
\fB\-\-number\-int\-cols=\fR\fB\fIN\fR\fR,
\fB\-y \fR\fB\fIN\fR\fR
.sp
The number of
INT
columns to use if
\fB\-\-auto\-generate\-sql\fR
is specified\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: number-of-queries option
.\" number-of-queries option: mysqlslap
\fB\-\-number\-of\-queries=\fR\fB\fIN\fR\fR
.sp
Limit each client to approximately this many queries\&. Query counting takes into account the statement delimiter\&. For example, if you invoke
\fBmysqlslap\fR
as follows, the
;
delimiter is recognized so that each instance of the query string counts as two queries\&. As a result, 5 rows (not 10) are inserted\&.
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysqlslap \-\-delimiter=";" \-\-number\-of\-queries=10\fR
         \fB\-\-query="use test;insert into t values(null)"\fR
.fi
.if n \{\
.RE
.\}
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: only-print option
.\" only-print option: mysqlslap
\fB\-\-only\-print\fR
.sp
Do not connect to databases\&.
\fBmysqlslap\fR
only prints what it would have done\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: password option
.\" password option: mysqlslap
\fB\-\-password[=\fR\fB\fIpassword\fR\fR\fB]\fR,
\fB\-p[\fR\fB\fIpassword\fR\fR\fB]\fR
.sp
The password to use when connecting to the server\&. If you use the short option form (\fB\-p\fR), you
\fIcannot\fR
have a space between the option and the password\&. If you omit the
\fIpassword\fR
value following the
\fB\-\-password\fR
or
\fB\-p\fR
option on the command line,
\fBmysqlslap\fR
prompts for one\&.
.sp
Specifying a password on the command line should be considered insecure\&. You can use an option file to avoid giving the password on the command line\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: pipe option
.\" pipe option: mysqlslap
\fB\-\-pipe\fR,
\fB\-W\fR
.sp
On Windows, connect to the server via a named pipe\&. This option applies only if the server supports named\-pipe connections\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: plugin-dir option
.\" plugin-dir option: mysqlslap
\fB\-\-plugin\-dir=\fIdir_name\fR
.sp
Directory for client-side plugins\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: port option
.\" port option: mysqlslap
\fB\-\-port=\fR\fB\fIport_num\fR\fR,
\fB\-P \fR\fB\fIport_num\fR\fR
.sp
The TCP/IP port number to use for the connection\&.
Forces --protocol=tcp when specified on the command line without other connection properties\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: post-query option
.\" post-query option: mysqlslap
\fB\-\-post\-query=\fR\fB\fIvalue\fR\fR
.sp
The file or string containing the statement to execute after the tests have completed\&. This execution is not counted for timing purposes\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: post-system option
.\" post-system option: mysqlslap
\fB\-\-post\-system=\fR\fB\fIstr\fR\fR
.sp
The string to execute via
system()
after the tests have completed\&. This execution is not counted for timing purposes\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: pre-query option
.\" pre-query option: mysqlslap
\fB\-\-pre\-query=\fR\fB\fIvalue\fR\fR
.sp
The file or string containing the statement to execute before running the tests\&. This execution is not counted for timing purposes\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: pre-system option
.\" pre-system option: mysqlslap
\fB\-\-pre\-system=\fR\fB\fIstr\fR\fR
.sp
The string to execute via
system()
before running the tests\&. This execution is not counted for timing purposes\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: print-defaults option
.\" print-defaults option: mysqlslap
\fB\-\-print\-defaults\fR
.sp
Print the program argument list and exit\&.
This must be given as the first argument\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: protocol option
.\" protocol option: mysqlslap
\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 would cause a protocol to be used other than the one you want\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: query option
.\" query option: mysqlslap
\fB\-\-query=\fR\fB\fIvalue\fR\fR,
\fB\-q \fR\fB\fIvalue\fR\fR
.sp
The file or string containing the
SELECT
statement to use for retrieving data\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: shared-memory-base-name option
.\" shared-memory-base-name option: mysqlslap
\fB\-\-shared\-memory\-base\-name=\fR\fB\fIname\fR\fR
.sp
On Windows, the shared\-memory name to use, for connections made via shared memory to a local server\&. This option applies only if the server supports shared\-memory connections\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: silent option
.\" silent option: mysqlslap
\fB\-\-silent\fR,
\fB\-s\fR
.sp
Silent mode\&. No output\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: socket option
.\" socket option: mysqlslap
\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\&.
Forces --protocol=socket when specified on the command line without other connection properties; on Windows, forces --protocol=pipe\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL options
.\" SSL options: mysqlshow
\fB\-\-ssl\fR
.sp
Enable SSL for connection (automatically enabled with other flags). Disable with 
\fB\-\-skip-ssl\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL CA option
.\" SSL CA option: mysqlshow
\fB\-\-ssl\-ca=\fIname\fR
.sp
CA file in PEM format (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL CA Path option
.\" SSL CA Path option: mysqlshow
\fB\-\-ssl\-capath=\fIname\fR
.sp
CA directory (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Cert option
.\" SSL Cert option: mysqlshow
\fB\-\-ssl\-cert=\fIname\fR
.sp
X509 cert in PEM format (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Cipher option
.\" SSL Cipher option: mysqlshow
\fB\-\-ssl\-cipher=\fIname\fR
.sp
SSL cipher to use (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Key option
.\" SSL Key option: mysqlshow
\fB\-\-ssl\-key=\fIname\fR
.sp
X509 key in PEM format (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Crl option
.\" SSL CRL option: mysqlshow
\fB\-\-ssl\-crl=\fIname\fR
.sp
Certificate revocation list (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Crlpath option
.\" SSL Crlpath option: mysqlshow
\fB\-\-ssl\-crlpath=\fIname\fR
.sp
Certificate revocation list path (check OpenSSL docs, implies
\fB\-\-ssl\fR)\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlshow: SSL Verify Server Cert option
.\" SSL Verify Server Cert option: mysqlshow
\fB\-\-ssl\-verify\-server\-cert\fR
.sp
Verify server's "Common Name" in its cert against hostname used when connecting. This option is disabled by default\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: user option
.\" user option: mysqlslap
\fB\-\-user=\fR\fB\fIuser_name\fR\fR,
\fB\-u \fR\fB\fIuser_name\fR\fR
.sp
The MariaDB user name to use when connecting to the server\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: verbose option
.\" verbose option: mysqlslap
\fB\-\-verbose\fR,
\fB\-v\fR
.sp
Verbose mode\&. Print more information about what the program does\&. This option can be used multiple times to increase the amount of information\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqlslap: version option
.\" version option: mysqlslap
\fB\-\-version\fR,
\fB\-V\fR
.sp
Display version information and exit\&.
.RE
.SH "COPYRIGHT"
.br
.PP
Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc., 2010-2020 MariaDB Foundation
.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 02110-1335 USA or see http://www.gnu.org/licenses/.
.sp
.SH "SEE ALSO"
For more information, please refer to the MariaDB Knowledge Base, available online at https://mariadb.com/kb/
.SH AUTHOR
MariaDB Foundation (http://www.mariadb.org/).