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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /man/mysqld_safe.1
parentInitial commit. (diff)
downloadmariadb-3f619478f796eddbba6e39502fe941b285dd97b1.tar.xz
mariadb-3f619478f796eddbba6e39502fe941b285dd97b1.zip
Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+'\" t
+.\"
+.TH "\fBMARIADBD-SAFE\fR" "1" "15 May 2020" "MariaDB 10.11" "MariaDB Database System"
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.\" mysqld_safe
+.\" tools: mysqld_safe
+.\" scripts
+.SH "NAME"
+mariadbd-safe \- MariaDB server startup script (mysqld_safe is now a symlink to mariadbd-safe)
+.SH "SYNOPSIS"
+.HP \w'\fBmysqld_safe\ \fR\fB\fIoptions\fR\fR\ 'u
+\fBmysqld_safe \fR\fB\fIoptions\fR\fR
+.SH "DESCRIPTION"
+.PP
+\fBmysqld_safe\fR
+is the recommended way to start a
+\fBmysqld\fR
+server on Unix\&.
+\fBmysqld_safe\fR
+adds some safety features such as restarting the server when an error occurs and logging runtime information to an error log file\&. Descriptions of error logging is given later in this section\&.
+.sp
+\fBmysqld_safe\fR
+tries to start an executable named
+\fBmysqld\fR\&. To override the default behavior and specify explicitly the name of the server you want to run, specify a
+\fB\-\-mysqld\fR
+or
+\fB\-\-mysqld\-version\fR
+option to
+\fBmysqld_safe\fR\&. You can also use
+\fB\-\-ledir\fR
+to indicate the directory where
+\fBmysqld_safe\fR
+should look for the server\&.
+.PP
+Many of the options to
+\fBmysqld_safe\fR
+are the same as the options to
+\fBmysqld\fR\&.
+.PP
+Options unknown to
+\fBmysqld_safe\fR
+are passed to
+\fBmysqld\fR
+if they are specified on the command line, but ignored if they are specified in the
+[mysqld_safe] or [mariadb_safe]
+groups of an option file\&.
+.PP
+\fBmysqld_safe\fR
+reads all options from the
+[mysqld],
+[server],
+[mysqld_safe], and [mariadb_safe]
+sections in option files\&. For example, if you specify a
+[mysqld]
+section like this,
+\fBmysqld_safe\fR
+will find and use the
+\fB\-\-log\-error\fR
+option:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+[mysqld]
+log\-error=error\&.log
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+For backward compatibility,
+\fBmysqld_safe\fR
+also reads
+[safe_mysqld]
+sections, although you should rename such sections to
+[mysqld_safe]
+in current installations\&.
+.PP
+\fBmysqld_safe\fR
+supports the options in the following list\&. It also reads option files and supports the options for processing them.
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: help option
+.\" help option: mysqld_safe
+\fB\-\-help\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
+.\}
+.\" mysqld_safe: basedir option
+.\" basedir option: mysqld_safe
+\fB\-\-basedir=\fR\fB\fIpath\fR\fR
+.sp
+The path to the MariaDB installation directory\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: core-file-size option
+.\" core-file-size option: mysqld_safe
+\fB\-\-core\-file\-size=\fR\fB\fIsize\fR\fR
+.sp
+The size of the core file that
+\fBmysqld\fR
+should be able to create\&. The option value is passed to
+\fBulimit \-c\fR\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: crash-script option
+.\" crash-script option: mysqld_safe
+\fB\-\-crash\-script=\fR\fB\fIfile\fR\fR
+.sp
+Script to call in the event of mysqld crashing\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: datadir option
+.\" datadir option: mysqld_safe
+\fB\-\-datadir=\fR\fB\fIpath\fR\fR
+.sp
+The path to the data directory\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: defaults-extra-file option
+.\" defaults-extra-file option: mysqld_safe
+\fB\-\-defaults\-extra\-file=\fR\fB\fIpath\fR\fR
+.sp
+The name of an option file to be read in addition to the usual option files\&. This must be the first option on the command line if it is used\&. If the file does not exist or is otherwise inaccessible, the server will exit with an error\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: defaults-file option
+.\" defaults-file option: mysqld_safe
+\fB\-\-defaults\-file=\fR\fB\fIfile_name\fR\fR
+.sp
+The name of an option file to be read instead of the usual option files\&. This must be the first option on the command line if it is used\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: flush-caches option
+.\" flush-caches option: mysqld_safe
+\fB\-\-flush\-caches\fR
+.sp
+Flush and purge buffers/caches before starting the server\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: ledir option
+.\" ledir option: mysqld_safe
+\fB\-\-ledir=\fR\fB\fIpath\fR\fR
+.sp
+If
+\fBmysqld_safe\fR
+cannot find the server, use this option to indicate the path name to the directory where the server is located\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: log-error option
+.\" log-error option: mysqld_safe
+\fB\-\-log\-error=\fR\fB\fIfile_name\fR\fR
+.sp
+Write the error log to the given file\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: malloc-lib option
+.\" malloc-lib option: mysqld_safe
+\fB\-\-malloc\-lib=\fR\fB\fIlib\fR\fR
+.sp
+Preload shared library lib if available\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: mysqld option
+.\" mysqld option: mysqld_safe
+\fB\-\-mysqld=\fR\fB\fIprog_name\fR\fR
+.sp
+The name of the server program (in the
+ledir
+directory) that you want to start\&. This option is needed if you use the MariaDB binary distribution but have the data directory outside of the binary distribution\&. If
+\fBmysqld_safe\fR
+cannot find the server, use the
+\fB\-\-ledir\fR
+option to indicate the path name to the directory where the server is located\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: mysqld-version option
+.\" mysqld-version option: mysqld_safe
+\fB\-\-mysqld\-version=\fR\fB\fIsuffix\fR\fR
+.sp
+This option is similar to the
+\fB\-\-mysqld\fR
+option, but you specify only the suffix for the server program name\&. The basename is assumed to be
+\fBmysqld\fR\&. For example, if you use
+\fB\-\-mysqld\-version=debug\fR,
+\fBmysqld_safe\fR
+starts the
+\fBmysqld\-debug\fR
+program in the
+ledir
+directory\&. If the argument to
+\fB\-\-mysqld\-version\fR
+is empty,
+\fBmysqld_safe\fR
+uses
+\fBmysqld\fR
+in the
+ledir
+directory\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: nice option
+.\" nice option: mysqld_safe
+\fB\-\-nice=\fR\fB\fIpriority\fR\fR
+.sp
+Use the
+nice
+program to set the server's scheduling priority to the given value\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: no-auto-restart option
+.\" no-auto-restart option: mysqld_safe
+\fB\-\-no\-auto\-restart\fR,
+\fB\-\-nowatch\fR,
+\fB\-\-no\-watch\fR
+.sp
+Exit after starting mysqld\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: no-defaults option
+.\" no-defaults option: mysqld_safe
+\fB\-\-no\-defaults\fR
+.sp
+Do not read any option files\&. This must be the first option on the command line if it is used\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: numa-interleave option
+.\" numa-interleave option: mysqld_safe
+\fB\-\-numa\-interleave\fR
+.sp
+Run mysqld with its memory interleaved on all NUMA nodes\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: open-files-limit option
+.\" open-files-limit option: mysqld_safe
+\fB\-\-open\-files\-limit=\fR\fB\fIcount\fR\fR
+.sp
+The number of files that
+\fBmysqld\fR
+should be able to open\&. The option value is passed to
+\fBulimit \-n\fR\&. Note that you need to start
+\fBmysqld_safe\fR
+as
+root
+for this to work properly!
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: pid-file option
+.\" pid-file option: mysqld_safe
+\fB\-\-pid\-file=\fR\fB\fIfile_name\fR\fR
+.sp
+The path name of the process ID file\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: plugin-dir option
+.\" plugin-dir option: mysqld_safe
+\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
+.\}
+.\" mysqld_safe: port option
+.\" port option: mysqld_safe
+\fB\-\-port=\fR\fB\fIport_num\fR\fR
+.sp
+The port number that the server should use when listening for TCP/IP connections\&. The port number must be 1024 or higher unless the server is started by the
+root
+system user\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: skip-kill-mysqld option
+.\" skip-kill-mysqld option: mysqld_safe
+\fB\-\-skip\-kill\-mysqld\fR
+.sp
+Do not try to kill stray
+\fBmysqld\fR
+processes at startup\&. This option works only on Linux\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: socket option
+.\" socket option: mysqld_safe
+\fB\-\-socket=\fR\fB\fIpath\fR\fR
+.sp
+The Unix socket file that the server should use when listening for local connections\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: syslog option
+.\" syslog option: mysqld_safe
+.\" mysqld_safe: skip-syslog option
+.\" skip-syslog option: mysqld_safe
+\fB\-\-syslog\fR,
+\fB\-\-skip\-syslog\fR
+.sp
+\fB\-\-syslog\fR
+causes error messages to be sent to
+syslog
+on systems that support the
+\fBlogger\fR
+program\&.
+\-\-skip\-syslog
+suppresses the use of
+syslog; messages are written to an error log file\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: syslog-tag option
+.\" syslog-tag option: mysqld_safe
+\fB\-\-syslog\-tag=\fR\fB\fItag\fR\fR
+.sp
+For logging to
+syslog, messages from
+\fBmysqld_safe\fR
+and
+\fBmysqld\fR
+are written with a tag of
+mysqld_safe
+and
+mysqld, respectively\&. To specify a suffix for the tag, use
+\fB\-\-syslog\-tag=\fR\fB\fItag\fR\fR, which modifies the tags to be
+mysqld_safe\-\fItag\fR
+and
+mysqld\-\fItag\fR\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: timezone option
+.\" timezone option: mysqld_safe
+\fB\-\-timezone=\fR\fB\fItimezone\fR\fR
+.sp
+Set the
+TZ
+time zone environment variable to the given option value\&. Consult your operating system documentation for legal time zone specification formats\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+.\" mysqld_safe: user option
+.\" user option: mysqld_safe
+\fB\-\-user={\fR\fB\fIuser_name\fR\fR\fB|\fR\fB\fIuser_id\fR\fR\fB}\fR
+.sp
+Run the
+\fBmysqld\fR
+server as the user having the name
+\fIuser_name\fR
+or the numeric user ID
+\fIuser_id\fR\&. (\(lqUser\(rq
+in this context refers to a system login account, not a MariaDB user listed in the grant tables\&.)
+.RE
+.PP
+If you execute
+\fBmysqld_safe\fR
+with the
+\fB\-\-defaults\-file\fR
+or
+\fB\-\-defaults\-extra\-file\fR
+option to name an option file, the option must be the first one given on the command line or the option file will not be used\&. For example, this command will not use the named option file:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+mysql> \fBmysqld_safe \-\-port=\fR\fB\fIport_num\fR\fR\fB \-\-defaults\-file=\fR\fB\fIfile_name\fR\fR
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+Instead, use the following command:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+mysql> \fBmysqld_safe \-\-defaults\-file=\fR\fB\fIfile_name\fR\fR\fB \-\-port=\fR\fB\fIport_num\fR\fR
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+The
+\fBmysqld_safe\fR
+script is written so that it normally can start a server that was installed from either a source or a binary distribution of MariaDB, even though these types of distributions typically install the server in slightly different locations\&.
+\fBmysqld_safe\fR
+expects one of the following conditions to be true:
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+The server and databases can be found relative to the working directory (the directory from which
+\fBmysqld_safe\fR
+is invoked)\&. For binary distributions,
+\fBmysqld_safe\fR
+looks under its working directory for
+bin
+and
+data
+directories\&. For source distributions, it looks for
+libexec
+and
+var
+directories\&. This condition should be met if you execute
+\fBmysqld_safe\fR
+from your MariaDB installation directory (for example,
+/usr/local/mysql
+for a binary distribution)\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+If the server and databases cannot be found relative to the working directory,
+\fBmysqld_safe\fR
+attempts to locate them by absolute path names\&. Typical locations are
+/usr/local/libexec
+and
+/usr/local/var\&. The actual locations are determined from the values configured into the distribution at the time it was built\&. They should be correct if MariaDB is installed in the location specified at configuration time\&.
+.RE
+.PP
+Because
+\fBmysqld_safe\fR
+tries to find the server and databases relative to its own working directory, you can install a binary distribution of MariaDB anywhere, as long as you run
+\fBmysqld_safe\fR
+from the MariaDB installation directory:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+shell> \fBcd \fR\fB\fImysql_installation_directory\fR\fR
+shell> \fBbin/mysqld_safe &\fR
+.fi
+.if n \{\
+.RE
+.\}
+.PP
+If
+\fBmysqld_safe\fR
+fails, even when invoked from the MariaDB installation directory, you can specify the
+\fB\-\-ledir\fR
+and
+\fB\-\-datadir\fR
+options to indicate the directories in which the server and databases are located on your system\&.
+.PP
+When you use
+\fBmysqld_safe\fR
+to start
+\fBmysqld\fR,
+\fBmysqld_safe\fR
+arranges for error (and notice) messages from itself and from
+\fBmysqld\fR
+to go to the same destination\&.
+.PP
+There are several
+\fBmysqld_safe\fR
+options for controlling the destination of these messages:
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+\fB\-\-syslog\fR: Write error messages to
+syslog
+on systems that support the
+\fBlogger\fR
+program\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+\fB\-\-skip\-syslog\fR: Do not write error messages to
+syslog\&. Messages are written to the default error log file (\fIhost_name\fR\&.err
+in the data directory), or to a named file if the
+\fB\-\-log\-error\fR
+option is given\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+\fB\-\-log\-error=\fR\fB\fIfile_name\fR\fR: Write error messages to the named error file\&.
+.RE
+.PP
+If none of these options is given, the default is
+\fB\-\-skip\-syslog\fR\&.
+.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
+.PP
+.sp .5v
+.RE
+.PP
+If
+\fB\-\-syslog\fR
+and
+\fB\-\-log\-error\fR
+are both given, a warning is issued and
+\fB\-\-log\-error\fR
+takes precedence\&.
+.PP
+When
+\fBmysqld_safe\fR
+writes a message, notices go to the logging destination (syslog
+or the error log file) and
+stdout\&. Errors go to the logging destination and
+stderr\&.
+.PP
+Normally, you should not edit the
+\fBmysqld_safe\fR
+script\&. Instead, configure
+\fBmysqld_safe\fR
+by using command\-line options or options in the
+[mysqld_safe]
+section of a
+my\&.cnf
+option file\&. In rare cases, it might be necessary to edit
+\fBmysqld_safe\fR
+to get it to start the server properly\&. However, if you do this, your modified version of
+\fBmysqld_safe\fR
+might be overwritten if you upgrade MariaDB in the future, so you should make a copy of your edited version that you can reinstall\&.
+.PP
+On NetWare,
+\fBmysqld_safe\fR
+is a NetWare Loadable Module (NLM) that is ported from the original Unix shell script\&. It starts the server as follows:
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 1.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 1." 4.2
+.\}
+Runs a number of system and option checks\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 2.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 2." 4.2
+.\}
+Runs a check on
+MyISAM
+tables\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 3.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 3." 4.2
+.\}
+Provides a screen presence for the MariaDB server\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 4.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 4." 4.2
+.\}
+Starts
+\fBmysqld\fR, monitors it, and restarts it if it terminates in error\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 5.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 5." 4.2
+.\}
+Sends error messages from
+\fBmysqld\fR
+to the
+\fIhost_name\fR\&.err
+file in the data directory\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04' 6.\h'+01'\c
+.\}
+.el \{\
+.sp -1
+.IP " 6." 4.2
+.\}
+Sends
+\fBmysqld_safe\fR
+screen output to the
+\fIhost_name\fR\&.safe
+file in the data directory\&.
+.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/).