991 lines
14 KiB
Groff
991 lines
14 KiB
Groff
'\" t
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.\" Title: ndb_mgm
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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: 12/13/2024
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.\" Manual: MySQL Database System
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.\" Source: MySQL 8.4
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.\" Language: English
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.\"
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.TH "NDB_MGM" "1" "12/13/2024" "MySQL 8\&.4" "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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ndb_mgm \- the NDB Cluster management client
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.SH "SYNOPSIS"
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.HP \w'\fBndb_mgm\ \fR\fB\fIoptions\fR\fR\ 'u
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\fBndb_mgm \fR\fB\fIoptions\fR\fR
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.SH "DESCRIPTION"
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.PP
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The
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\fBndb_mgm\fR
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management client process is actually not needed to run the cluster\&. Its value lies in providing a set of commands for checking the cluster\*(Aqs status, starting backups, and performing other administrative functions\&. The management client accesses the management server using a C API\&. Advanced users can also employ this API for programming dedicated management processes to perform tasks similar to those performed by
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\fBndb_mgm\fR\&.
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.PP
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To start the management client, it is necessary to supply the host name and port number of the management server:
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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
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$> \fBndb_mgm [\fR\fB\fIhost_name\fR\fR\fB [\fR\fB\fIport_num\fR\fR\fB]]\fR
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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For example:
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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$> \fBndb_mgm ndb_mgmd\&.mysql\&.com 1186\fR
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.fi
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.if n \{\
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.RE
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.\}
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.PP
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The default host name and port number are
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localhost
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and 1186, respectively\&.
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.PP
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All options that can be used with
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\fBndb_mgm\fR
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are shown in the following table\&. Additional descriptions follow the table\&.
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.PP
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-backup\-password\-from\-stdin[=TRUE|FALSE]\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--backup-password-from-stdin
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T}
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.TE
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.sp 1
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This option enables input of the backup password from the system shell (stdin) when using
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\fB\-\-execute "START BACKUP"\fR
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or similar to create a backup\&. Use of this option requires use of
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\fB\-\-execute\fR
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as well\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-character\-sets\-dir\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--character-sets-dir=path
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T}
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.TE
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.sp 1
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Directory containing character sets\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-connect\-retries=\fR\fB\fI#\fR\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--connect-retries=#
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T}
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T{
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Type
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T}:T{
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Numeric
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T}
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T{
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Default Value
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T}:T{
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3
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T}
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T{
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Minimum Value
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T}:T{
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0
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T}
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T{
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Maximum Value
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T}:T{
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4294967295
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T}
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.TE
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.sp 1
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This option specifies the number of times following the first attempt to retry a connection before giving up (the client always tries the connection at least once)\&. The length of time to wait per attempt is set using
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\fB\-\-connect\-retry\-delay\fR\&.
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.sp
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This option is synonymous with the
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\fB\-\-try\-reconnect\fR
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option, which is now deprecated\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-connect\-retry\-delay\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--connect-retry-delay=#
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T}
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T{
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Type
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T}:T{
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Integer
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T}
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T{
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Default Value
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T}:T{
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5
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T}
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T{
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Minimum Value
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T}:T{
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0
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T}
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T{
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Maximum Value
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T}:T{
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5
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T}
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.TE
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.sp 1
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Number of seconds to wait between attempts to contact management server\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-connect\-string\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--connect-string=connection_string
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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Same as
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\fB\-\-ndb\-connectstring\fR\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-core\-file\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--core-file
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T}
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.TE
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.sp 1
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Write core file on error; used in debugging\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-defaults\-extra\-file\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--defaults-extra-file=path
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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Read given file after global files are read\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-defaults\-file\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--defaults-file=path
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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Read default options from given file only\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-defaults\-group\-suffix\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--defaults-group-suffix=string
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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Also read groups with concat(group, suffix)\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-encrypt\-backup\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--encrypt-backup
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T}
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.TE
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.sp 1
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When used, this option causes all backups to be encrypted\&. To make this happen whenever
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\fBndb_mgm\fR
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is run, put the option in the
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[ndb_mgm]
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section of the
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my\&.cnf
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file\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-execute=\fR\fBcommand\fR,
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\fB\-e \fR\fBcommand\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--execute=command
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T}
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.TE
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.sp 1
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This option can be used to send a command to the NDB Cluster management client from the system shell\&. For example, either of the following is equivalent to executing
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SHOW
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in the management client:
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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
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$> \fBndb_mgm \-e "SHOW"\fR
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$> \fBndb_mgm \-\-execute="SHOW"\fR
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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This is analogous to how the
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\fB\-\-execute\fR
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or
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\fB\-e\fR
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option works with the
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\fBmysql\fR
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command\-line client\&. See
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Section\ \&6.2.2.1, \(lqUsing Options on the Command Line\(rq\&.
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.if n \{\
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.sp
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.\}
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.RS 4
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.br
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.ps +1
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\fBNote\fR
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.ps -1
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.br
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If the management client command to be passed using this option contains any space characters, then the command
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\fImust\fR
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be enclosed in quotation marks\&. Either single or double quotation marks may be used\&. If the management client command contains no space characters, the quotation marks are optional\&.
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.sp .5v
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.RE
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-help\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--help
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T}
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.TE
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.sp 1
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Display help text and exit\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-login\-path\fR
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.TS
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allbox tab(:);
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--login-path=path
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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Read given path from login file\&.
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.RE
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.sp
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.RS 4
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.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-no\-login\-paths\fR
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.TS
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allbox tab(:);
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lB l.
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T{
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Command-Line Format
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T}:T{
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--no-login-paths
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T}
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.TE
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.sp 1
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|
Skips reading options from the login path file\&.
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.RE
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.sp
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.RS 4
|
|
.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-ndb\-connectstring\fR
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.TS
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allbox tab(:);
|
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lB l
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lB l
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lB l.
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T{
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Command-Line Format
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T}:T{
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--ndb-connectstring=connection_string
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T}
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T{
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Type
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T}:T{
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String
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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.TE
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.sp 1
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|
Set connect string for connecting to
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\fBndb_mgmd\fR\&. Syntax: [nodeid=\fIid\fR;][host=]\fIhostname\fR[:\fIport\fR]\&. Overrides entries in
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NDB_CONNECTSTRING
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and
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my\&.cnf\&.
|
|
.RE
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|
.sp
|
|
.RS 4
|
|
.ie n \{\
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\h'-04'\(bu\h'+03'\c
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.\}
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.el \{\
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.sp -1
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.IP \(bu 2.3
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.\}
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\fB\-\-ndb\-nodeid\fR
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.TS
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|
allbox tab(:);
|
|
lB l
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lB l
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|
lB l.
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|
T{
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|
Command-Line Format
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T}:T{
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--ndb-nodeid=#
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T}
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T{
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Type
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T}:T{
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Integer
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T}
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T{
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Default Value
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T}:T{
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[none]
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T}
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|
.TE
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|
.sp 1
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|
Set node ID for this node, overriding any ID set by
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\fB\-\-ndb\-connectstring\fR\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
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|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ndb\-mgm\-tls\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--ndb-mgm-tls=level
|
|
T}
|
|
T{
|
|
Type
|
|
T}:T{
|
|
Enumeration
|
|
T}
|
|
T{
|
|
Default Value
|
|
T}:T{
|
|
relaxed
|
|
T}
|
|
T{
|
|
Valid Values
|
|
T}:T{
|
|
.PP
|
|
relaxed
|
|
.PP
|
|
strict
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Sets the level of TLS support required to connect to the management server; one of
|
|
relaxed
|
|
or
|
|
strict\&.
|
|
relaxed
|
|
(the default) means that a TLS connection is attempted, but success is not required;
|
|
strict
|
|
means that TLS is required to connect\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ndb\-mgmd\-host\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l
|
|
lB l
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--ndb-mgmd-host=connection_string
|
|
T}
|
|
T{
|
|
Type
|
|
T}:T{
|
|
String
|
|
T}
|
|
T{
|
|
Default Value
|
|
T}:T{
|
|
[none]
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Same as
|
|
\fB\-\-ndb\-connectstring\fR\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ndb\-optimized\-node\-selection\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--ndb-optimized-node-selection
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Enable optimizations for selection of nodes for transactions\&. Enabled by default; use
|
|
\fB\-\-skip\-ndb\-optimized\-node\-selection\fR
|
|
to disable\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-ndb\-tls\-search\-path\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--ndb-tls-search-path=list
|
|
T}
|
|
T{
|
|
Type
|
|
T}:T{
|
|
Path name
|
|
T}
|
|
T{
|
|
Default Value (Unix)
|
|
T}:T{
|
|
$HOME/ndb-tls
|
|
T}
|
|
T{
|
|
Default Value (Windows)
|
|
T}:T{
|
|
$HOMEDIR/ndb-tls
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Specify a list of directories to search for a CA file\&. On Unix platforms, the directory names are separated by colons (:); on Windows systems, the semicolon character (;) is used as the separator\&. A directory reference may be relative or absolute; it may contain one or more environment variables, each denoted by a prefixed dollar sign ($), and expanded prior to use\&.
|
|
.sp
|
|
Searching begins with the leftmost named directory and proceeds from left to right until a file is found\&. An empty string denotes an empty search path, which causes all searches to fail\&. A string consisting of a single dot (\&.) indicates that the search path limited to the current working directory\&.
|
|
.sp
|
|
If no search path is supplied, the compiled\-in default value is used\&. This value depends on the platform used: On Windows, this is
|
|
\endb\-tls; on other platforms (including Linux), it is
|
|
$HOME/ndb\-tls\&. This can be overridden by compiling NDB Cluster using
|
|
\fB\-DWITH_NDB_TLS_SEARCH_PATH\fR\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-no\-defaults\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--no-defaults
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Do not read default options from any option file other than login file\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-print\-defaults\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--print-defaults
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Print program argument list and exit\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-test\-tls\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--test-tls
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Connect using TLS, then exit\&. Output if successful is similar to what is shown here:
|
|
.sp
|
|
.if n \{\
|
|
.RS 4
|
|
.\}
|
|
.nf
|
|
>$ \fBndb_mgm \-\-test\-tls\fR
|
|
Connected to Management Server at: sakila:1186
|
|
>$
|
|
.fi
|
|
.if n \{\
|
|
.RE
|
|
.\}
|
|
.sp
|
|
See
|
|
Section\ \&25.6.15, \(lqTLS Link Encryption for NDB Cluster\(rq, for more information\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-try\-reconnect=\fR\fB\fInumber\fR\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--try-reconnect=#
|
|
T}
|
|
T{
|
|
Deprecated
|
|
T}:T{
|
|
Yes
|
|
T}
|
|
T{
|
|
Type
|
|
T}:T{
|
|
Numeric
|
|
T}
|
|
T{
|
|
Type
|
|
T}:T{
|
|
Integer
|
|
T}
|
|
T{
|
|
Default Value
|
|
T}:T{
|
|
12
|
|
T}
|
|
T{
|
|
Default Value
|
|
T}:T{
|
|
3
|
|
T}
|
|
T{
|
|
Minimum Value
|
|
T}:T{
|
|
0
|
|
T}
|
|
T{
|
|
Maximum Value
|
|
T}:T{
|
|
4294967295
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
If the connection to the management server is broken, the node tries to reconnect to it every 5 seconds until it succeeds\&. By using this option, it is possible to limit the number of attempts to
|
|
\fInumber\fR
|
|
before giving up and reporting an error instead\&.
|
|
.sp
|
|
This option is deprecated and subject to removal in a future release\&. Use
|
|
\fB\-\-connect\-retries\fR, instead\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-usage\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--usage
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Display help text and exit; same as
|
|
\fB\-\-help\fR\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-version\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB l.
|
|
T{
|
|
Command-Line Format
|
|
T}:T{
|
|
--version
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Display version information and exit\&.
|
|
.RE
|
|
.PP
|
|
Additional information about using
|
|
\fBndb_mgm\fR
|
|
can be found in
|
|
Section\ \&25.6.1, \(lqCommands in the NDB Cluster Management Client\(rq\&.
|
|
.SH "COPYRIGHT"
|
|
.br
|
|
.PP
|
|
Copyright \(co 1997, 2024, Oracle and/or its affiliates.
|
|
.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/).
|