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1063 lines
15 KiB
1063 lines
15 KiB
'\" t
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.\" Title: \fBndb_top\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 "\FBNDB_TOP\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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ndb_top \- View CPU usage information for NDB threads
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.SH "SYNOPSIS"
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.HP \w'\fBndb_top\ \fR\fB\fIoptions\fR\fR\ 'u
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\fBndb_top \fR\fB\fIoptions\fR\fR
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.SH "DESCRIPTION"
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.PP
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\fBndb_top\fR
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displays running information in the terminal about CPU usage by NDB threads on an NDB Cluster data node\&. Each thread is represented by two rows in the output, the first showing system statistics, the second showing the measured statistics for the thread\&.
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.PP
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\fBndb_top\fR
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is available beginning with MySQL NDB Cluster 7\&.6\&.3\&.
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Usage
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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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ndb_top [\-h \fIhostname\fR] [\-t \fIport\fR] [\-u \fIuser\fR] [\-p \fIpass\fR] [\-n \fInode_id\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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|
\fBndb_top\fR
|
|
connects to a MySQL Server running as an SQL node of the cluster\&. By default, it attempts to connect to a
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\fBmysqld\fR
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|
running on
|
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localhost
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and port 3306, as the MySQL
|
|
root
|
|
user with no password specified\&. You can override the default host and port using, respectively,
|
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\fB\-\-host\fR
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|
(\fB\-h\fR) and
|
|
\fB\-\-port\fR
|
|
(\fB\-t\fR)\&. To specify a MySQL user and password, use the
|
|
\fB\-\-user\fR
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|
(\fB\-u\fR) and
|
|
\fB\-\-passwd\fR
|
|
(\fB\-p\fR) options\&. This user must be able to read tables in the
|
|
ndbinfo
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|
database (\fBndb_top\fR
|
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uses information from
|
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ndbinfo\&.cpustat
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and related tables)\&.
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.PP
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|
For more information about MySQL user accounts and passwords, see
|
|
Section\ \&6.2, \(lqAccess Control and Account Management\(rq\&.
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.PP
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|
Output is available as plain text or an ASCII graph; you can specify this using the
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\fB\-\-text\fR
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|
(\fB\-x\fR) and
|
|
\fB\-\-graph\fR
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|
(\fB\-g\fR) options, respectively\&. These two display modes provide the same information; they can be used concurrently\&. At least one display mode must be in use\&.
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.PP
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|
Color display of the graph is supported and enabled by default (\fB\-\-color\fR
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|
or
|
|
\fB\-c\fR
|
|
option)\&. With color support enabled, the graph display shows OS user time in blue, OS system time in green, and idle time as blank\&. For measured load, blue is used for execution time, yellow for send time, red for time spent in send buffer full waits, and blank spaces for idle time\&. The percentage shown in the graph display is the sum of percentages for all threads which are not idle\&. Colors are not currently configurable; you can use grayscale instead by using
|
|
\fB\-\-skip\-color\fR\&.
|
|
.PP
|
|
The sorted view (\fB\-\-sort\fR,
|
|
\fB\-r\fR) is based on the maximum of the measured load and the load reported by the OS\&. Display of these can be enabled and disabled using the
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|
\fB\-\-measured\-load\fR
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|
(\fB\-m\fR) and
|
|
\fB\-\-os\-load\fR
|
|
(\fB\-o\fR) options\&. Display of at least one of these loads must be enabled\&.
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|
.PP
|
|
The program tries to obtain statistics from a data node having the node ID given by the
|
|
\fB\-\-node\-id\fR
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|
(\fB\-n\fR) option; if unspecified, this is 1\&.
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|
\fBndb_top\fR
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|
cannot provide information about other types of nodes\&.
|
|
.PP
|
|
The view adjusts itself to the height and width of the terminal window; the minimum supported width is 76 characters\&.
|
|
.PP
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|
Once started,
|
|
\fBndb_top\fR
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runs continuously until forced to exit; you can quit the program using
|
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Ctrl\-C\&. The display updates once per second; to set a different delay interval, use
|
|
\fB\-\-sleep\-time\fR
|
|
(\fB\-s\fR)\&.
|
|
.if n \{\
|
|
.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
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|
\fBNote\fR
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|
.ps -1
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.br
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|
.PP
|
|
\fBndb_top\fR
|
|
is available on Mac OS X, Linux, and Solaris\&. It is not currently supported on Windows platforms\&.
|
|
.sp .5v
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|
.RE
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|
.PP
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|
The following table includes all options that are specific to the NDB Cluster program
|
|
\fBndb_top\fR\&. Additional descriptions follow the table\&.
|
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.sp
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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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|
.B Table\ \&22.349.\ \&Command\-line options for the ndb_top program
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.TS
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allbox tab(:);
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lB lB lB.
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T{
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Format
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T}:T{
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Description
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T}:T{
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|
Added, Deprecated, or Removed
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T}
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.T&
|
|
l l l
|
|
l l l
|
|
l l l
|
|
l l l
|
|
l l l
|
|
l l l
|
|
l l l
|
|
l l l
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|
l l l
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|
l l l
|
|
l l l
|
|
l l l
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|
l l l
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|
l l l
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|
l l l.
|
|
T{
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|
.PP
|
|
--color,
|
|
.PP
|
|
-c
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|
T}:T{
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|
Show ASCII graphs in color; use --skip-colors to disable
|
|
T}:T{
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|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
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.PP
|
|
--graph,
|
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.PP
|
|
-g
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|
T}:T{
|
|
Display data using graphs; use --skip-graphs to disable
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--help,
|
|
.PP
|
|
-?
|
|
T}:T{
|
|
Show program usage information
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--host[=name],
|
|
.PP
|
|
-h
|
|
T}:T{
|
|
Host name or IP address of MySQL Server to connect to
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--measured-load,
|
|
.PP
|
|
-m
|
|
T}:T{
|
|
Show measured load by thread
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--node-id[=#],
|
|
.PP
|
|
-n
|
|
T}:T{
|
|
Watch node having this node ID
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--os-load,
|
|
.PP
|
|
-o
|
|
T}:T{
|
|
Show load measured by operating system
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--passwd[=password],
|
|
.PP
|
|
-p
|
|
T}:T{
|
|
Connect using this password
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
.PP
|
|
REMOVED: NDB 7.6.4
|
|
T}
|
|
T{
|
|
.PP
|
|
--password[=password],
|
|
.PP
|
|
-p
|
|
T}:T{
|
|
Connect using this password
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--port[=#],
|
|
.PP
|
|
-t
|
|
(<=7.6.5),
|
|
.PP
|
|
-P
|
|
(>=7.6.6)
|
|
T}:T{
|
|
Port number to use when connecting to MySQL Server
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--sleep-time[=seconds],
|
|
.PP
|
|
-s
|
|
T}:T{
|
|
Time to wait between display refreshes, in seconds
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
\fB--socket\fR,
|
|
.PP
|
|
\fB \fR\fB-S\fR\fB \fR
|
|
T}:T{
|
|
Socket file to use for connection.
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--sort,
|
|
.PP
|
|
-r
|
|
T}:T{
|
|
Sort threads by usage; use --skip-sort to disable
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--text,
|
|
.PP
|
|
-x
|
|
(<=7.6.5),
|
|
.PP
|
|
-t
|
|
(>=7.6.6)
|
|
T}:T{
|
|
Display data using text
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
T{
|
|
.PP
|
|
--user[=name],
|
|
.PP
|
|
-u
|
|
T}:T{
|
|
Connect as this MySQL user
|
|
T}:T{
|
|
.PP
|
|
All NDB 8.0 releases
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
.PP
|
|
In NDB 7\&.6\&.6 and later,
|
|
\fBndb_top\fR
|
|
also supports the common
|
|
NDB
|
|
program options
|
|
\fB\-\-defaults\-file\fR,
|
|
\fB\-\-defaults\-extra\-file\fR,
|
|
\fB\-\-print\-defaults\fR,
|
|
\fB\-\-no\-defaults\fR, and
|
|
\fB\-\-defaults\-group\-suffix\fR\&. (Bug #86614, Bug #26236298)
|
|
Additional Options
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-color\fR,
|
|
\fB\-c\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--color
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
TRUE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Show ASCII graphs in color; use
|
|
\fB\-\-skip\-colors\fR
|
|
to disable\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-graph\fR,
|
|
\fB\-g\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--graph
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
TRUE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Display data using graphs; use
|
|
\fB\-\-skip\-graphs\fR
|
|
to disable\&. This option or
|
|
\fB\-\-text\fR
|
|
must be true; both options may be true\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-help\fR,
|
|
\fB\-?\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--help
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
TRUE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Show program usage information\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-host[\fR=\fIname]\fR,
|
|
\fB\-h\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--host[=name]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
String
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
localhost
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Host name or IP address of MySQL Server to connect to\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-measured\-load\fR,
|
|
\fB\-m\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--measured-load
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
FALSE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Show measured load by thread\&. This option or
|
|
\fB\-\-os\-load\fR
|
|
must be true; both options may be true\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-node\-id[\fR=\fI#]\fR,
|
|
\fB\-n\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--node-id[=#]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Integer
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
1
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Watch the data node having this node ID\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-os\-load\fR,
|
|
\fB\-o\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--os-load
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
TRUE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Show load measured by operating system\&. This option or
|
|
\fB\-\-measured\-load\fR
|
|
must be true; both options may be true\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-passwd[\fR=\fIpassword]\fR,
|
|
\fB\-p\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--passwd[=password]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
NULL
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Connect using this password\&.
|
|
.sp
|
|
This option is deprecated in NDB 7\&.6\&.4\&. It is removed in NDB 7\&.6\&.6, where it is replaced by the
|
|
\fB\-\-password\fR
|
|
option\&. (Bug #26907833)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-password[\fR=\fIpassword]\fR,
|
|
\fB\-p\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--password[=password]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
NULL
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Connect using this password\&.
|
|
.sp
|
|
This option was added in NDB 7\&.6\&.6 as a replacement for the
|
|
\fB\-\-passwd\fR
|
|
option used previously\&. (Bug #26907833)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-port[\fR=\fI#]\fR,
|
|
\fB\-t\fR
|
|
(NDB 7\&.6\&.6 and later:
|
|
\fB\-P\fR)
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--port[=#]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Integer
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
3306
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Port number to use when connecting to MySQL Server\&.
|
|
.sp
|
|
Beginning with NDB 7\&.6\&.6, the short form for this option is
|
|
\fB\-P\fR, and
|
|
\fB\-t\fR
|
|
is repurposed as the short form for the
|
|
\fB\-\-text\fR
|
|
option\&. (Bug #26907833)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-sleep\-time[\fR=\fIseconds]\fR,
|
|
\fB\-s\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--sleep-time[=seconds]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Integer
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
1
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Time to wait between display refreshes, in seconds\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-socket=\fR\fB\fIpath/to/file\fR\fR,
|
|
\fI\-S\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--socket
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Path name
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
[none]
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Use the specified socket file for the connection\&.
|
|
.sp
|
|
Added in NDB 7\&.6\&.6\&. (Bug #86614, Bug #26236298)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-sort\fR,
|
|
\fB\-r\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--sort
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
TRUE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Sort threads by usage; use
|
|
\fB\-\-skip\-sort\fR
|
|
to disable\&.
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-text\fR,
|
|
\fB\-x\fR
|
|
(NDB 7\&.6\&.6 and later:
|
|
\fB\-t\fR)
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--text
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
Boolean
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
FALSE
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Display data using text\&. This option or
|
|
\fB\-\-graph\fR
|
|
must be true; both options may be true\&.
|
|
.sp
|
|
Beginning with NDB 7\&.6\&.6, the short form for this option is
|
|
\fB\-t\fR
|
|
and support for
|
|
\fB\-x\fR
|
|
is removed\&. (Bug #26907833)
|
|
.RE
|
|
.sp
|
|
.RS 4
|
|
.ie n \{\
|
|
\h'-04'\(bu\h'+03'\c
|
|
.\}
|
|
.el \{\
|
|
.sp -1
|
|
.IP \(bu 2.3
|
|
.\}
|
|
\fB\-\-user[\fR=\fIname]\fR,
|
|
\fB\-u\fR
|
|
.TS
|
|
allbox tab(:);
|
|
lB lB.
|
|
T{
|
|
Property
|
|
T}:T{
|
|
Value
|
|
T}
|
|
.T&
|
|
l l
|
|
l l
|
|
l l.
|
|
T{
|
|
\fBCommand-Line Format\fR
|
|
T}:T{
|
|
--user[=name]
|
|
T}
|
|
T{
|
|
\fBType\fR
|
|
T}:T{
|
|
String
|
|
T}
|
|
T{
|
|
\fBDefault Value\fR
|
|
T}:T{
|
|
root
|
|
T}
|
|
.TE
|
|
.sp 1
|
|
Connect as this MySQL user\&.
|
|
.RE
|
|
.PP
|
|
\fBSample Output\fR. The next figure shows
|
|
\fBndb_top\fR
|
|
running in a terminal window on a Linux system with an
|
|
\fBndbmtd\fR
|
|
data node under a moderate load\&. Here, the program has been invoked using
|
|
\fBndb_top\fR
|
|
\fB\-n8\fR
|
|
\fB\-x\fR
|
|
to provide both text and graph output:
|
|
.PP
|
|
\fBFigure\ \&22.25.\ \&ndb_top Running in Terminal\fR
|
|
.sp
|
|
.RS 4
|
|
[IMAGE]\&\s-2\u[1]\d\s+2
|
|
[IMAGE]\&\s-2\u[1]\d\s+2
|
|
Display from ndb_top, running in a
|
|
terminal window\&. Shows information for each node, including
|
|
the utilized resources\&.
|
|
.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 "NOTES"
|
|
.IP " 1." 4
|
|
[set $man.base.url.for.relative.links]/../refman-common/images/published/ndb-top-1.png
|
|
.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/).
|
|
|