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GLANCES(1) Glances GLANCES(1)
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NAME

glances - An eye on your system

SYNOPSIS

glances [OPTIONS]

DESCRIPTION

glances is a cross-platform curses-based monitoring tool which aims to present a maximum of information in a minimum of space, ideally to fit in a classical 80x24 terminal or higher to have additional information. It can adapt dynamically the displayed information depending on the terminal size. It can also work in client/server mode. Remote monitoring could be done via terminal or web interface.

glances is written in Python and uses the psutil library to get information from your system.

OPTIONS

COMMAND-LINE OPTIONS

-h, --help
show this help message and exit

-V, --version
show program’s version number and exit

-d, --debug
enable debug mode

-C CONF_FILE, --config CONF_FILE
path to the configuration file

--modules-list
display modules (plugins & exports) list and exit

--disable-plugin PLUGIN
disable PLUGIN (comma separated list)

--enable-plugin PLUGIN
enable PLUGIN (comma separated list)

--stdout PLUGINS_STATS
display stats to stdout (comma separated list of plugins/plugins.attribute)

--export EXPORT
enable EXPORT module (comma separated list)

--export-csv-file EXPORT_CSV_FILE
file path for CSV exporter

--export-json-file EXPORT_JSON_FILE
file path for JSON exporter

--disable-process
disable process module (reduce Glances CPU consumption)

--disable-webui
disable the Web UI (only the RESTful API will respond)

--light, --enable-light
light mode for Curses UI (disable all but top menu)

-0, --disable-irix
task’s CPU usage will be divided by the total number of CPUs

-1, --percpu
start Glances in per CPU mode

-2, --disable-left-sidebar
disable network, disk I/O, FS and sensors modules

-3, --disable-quicklook
disable quick look module

-4, --full-quicklook
disable all but quick look and load

-5, --disable-top
disable top menu (QuickLook, CPU, MEM, SWAP and LOAD)

-6, --meangpu
start Glances in mean GPU mode

--enable-history
enable the history mode

--disable-bold
disable bold mode in the terminal

--disable-bg
disable background colors in the terminal

--enable-process-extended
enable extended stats on top process

-c CLIENT, --client CLIENT
connect to a Glances server by IPv4/IPv6 address, hostname or hostname:port

-s, --server
run Glances in server mode

--browser
start the client browser (list of servers)

--disable-autodiscover
disable autodiscover feature

-p PORT, --port PORT
define the client/server TCP port [default: 61209]

-B BIND_ADDRESS, --bind BIND_ADDRESS
bind server to the given IPv4/IPv6 address or hostname

--username
define a client/server username

--password
define a client/server password

--snmp-community SNMP_COMMUNITY
SNMP community

--snmp-port SNMP_PORT
SNMP port

--snmp-version SNMP_VERSION
SNMP version (1, 2c or 3)

--snmp-user SNMP_USER
SNMP username (only for SNMPv3)

--snmp-auth SNMP_AUTH
SNMP authentication key (only for SNMPv3)

--snmp-force
force SNMP mode

-t TIME, --time TIME
set refresh time in seconds [default: 3 sec]

-w, --webserver
run Glances in web server mode (bottle lib needed)

--cached-time CACHED_TIME
set the server cache time [default: 1 sec]

open-web-browser
try to open the Web UI in the default Web browser

-q, --quiet
do not display the curses interface

-f PROCESS_FILTER, --process-filter PROCESS_FILTER
set the process filter pattern (regular expression)

--process-short-name
force short name for processes name

--hide-kernel-threads
hide kernel threads in process list (not available on Windows)

-b, --byte
display network rate in byte per second

--diskio-show-ramfs
show RAM FS in the DiskIO plugin

--diskio-iops
show I/O per second in the DiskIO plugin

--fahrenheit
display temperature in Fahrenheit (default is Celsius)

--fs-free-space
display FS free space instead of used

--theme-white
optimize display colors for white background

--disable-check-update
disable online Glances version ckeck

INTERACTIVE COMMANDS

The following commands (key pressed) are supported while in Glances:
ENTER
Set the process filter

NOTE:

On macOS please use CTRL-H to delete filter.


Filter is a regular expression pattern:

  • gnome: matches all processes starting with the gnome string
  • .*gnome.*: matches all processes containing the gnome string

a
Sort process list automatically
  • If CPU >70%, sort processes by CPU usage
  • If MEM >70%, sort processes by MEM usage
  • If CPU iowait >60%, sort processes by I/O read and write

A
Enable/disable Application Monitoring Process
b
Switch between bit/s or Byte/s for network I/O
B
View disk I/O counters per second
c
Sort processes by CPU usage
d
Show/hide disk I/O stats
D
Enable/disable Docker stats
e
Enable/disable top extended stats
E
Erase current process filter
f
Show/hide file system and folder monitoring stats
F
Switch between file system used and free space
g
Generate graphs for current history
h
Show/hide the help screen
i
Sort processes by I/O rate
I
Show/hide IP module
k
Show/hide TCP connections
l
Show/hide log messages
m
Sort processes by MEM usage
M
Reset processes summary min/max
n
Show/hide network stats
N
Show/hide current time
p
Sort processes by name
q|ESC|CTRL-C
Quit the current Glances session
Q
Show/hide IRQ module
r
Reset history
R
Show/hide RAID plugin
s
Show/hide sensors stats
t
Sort process by CPU times (TIME+)
T
View network I/O as combination
u
Sort processes by USER
U
View cumulative network I/O
w
Delete finished warning log messages
W
Show/hide Wifi module
x
Delete finished warning and critical log messages
z
Show/hide processes stats
0
Enable/disable Irix/Solaris mode

Task’s CPU usage will be divided by the total number of CPUs

1
Switch between global CPU and per-CPU stats
2
Enable/disable left sidebar
3
Enable/disable the quick look module
4
Enable/disable all but quick look and load module
5
Enable/disable top menu (QuickLook, CPU, MEM, SWAP and LOAD)
6
Enable/disable mean GPU mode
/
Switch between process command line or command name

In the Glances client browser (accessible through the --browser command line argument):

ENTER
Run the selected server
UP
Up in the servers list
DOWN
Down in the servers list
q|ESC
Quit Glances

CONFIGURATION

No configuration file is mandatory to use Glances.

Furthermore a configuration file is needed to access more settings.

LOCATION

NOTE:
A template is available in the /usr{,/local}/share/doc/glances (Unix-like) directory or directly on GitHub.


You can put your own glances.conf file in the following locations:

Linux, SunOS ~/.config/glances, /etc/glances
*BSD ~/.config/glances, /usr/local/etc/glances
macOS ~/Library/Application Support/glances, /usr/local/etc/glances
Windows %APPDATA%\glances
  • On Windows XP, %APPDATA% is: C:\Documents and Settings\<USERNAME>\Application Data.
  • On Windows Vista and later: C:\Users\<USERNAME>\AppData\Roaming.

User-specific options override system-wide options and options given on the command line override either.

SYNTAX

Glances reads configuration files in the ini syntax.

A first section (called global) is available:

[global]
# Does Glances should check if a newer version is available on PyPI?
check_update=true


Each plugin, export module and application monitoring process (AMP) can have a section. Below an example for the CPU plugin:

[cpu]
disable=False
user_careful=50
user_warning=70
user_critical=90
iowait_careful=50
iowait_warning=70
iowait_critical=90
system_careful=50
system_warning=70
system_critical=90
steal_careful=50
steal_warning=70
steal_critical=90


an InfluxDB export module:

[influxdb]
# Configuration for the --export influxdb option
# https://influxdb.com/
host=localhost
port=8086
user=root
password=root
db=glances
prefix=localhost
#tags=foo:bar,spam:eggs


or a Nginx AMP:

[amp_nginx]
# Nginx status page should be enable (https://easyengine.io/tutorials/nginx/status-page/)
enable=true
regex=\/usr\/sbin\/nginx
refresh=60
one_line=false
status_url=http://localhost/nginx_status


With Glances 3.0 or higher it is also possible to use dynamic configuration value using system command. For example, if you to set the prefix of an InfluxDB export to the current hostname, use:

[influxdb]
...
prefix=`hostname`


Or if you want to add the Operating System name as a tag:

[influxdb]
...
tags=system:`uname -a`


LOGGING

Glances logs all of its internal messages to a log file.

DEBUG messages can been logged using the -d option on the command line.

The location of the Glances depends of your operating system. You could displayed the Glances log file full path using the``glances -V`` command line.

The file is automatically rotate when the size is higher than 1 MB.

If you want to use another system path or change the log message, you can use your own logger configuration. First of all, you have to create a glances.json file with, for example, the following content (JSON format):

{
    "version": 1,
    "disable_existing_loggers": "False",
    "root": {
        "level": "INFO",
        "handlers": ["file", "console"]
    },
    "formatters": {
        "standard": {
            "format": "%(asctime)s -- %(levelname)s -- %(message)s"
        },
        "short": {
            "format": "%(levelname)s: %(message)s"
        },
        "free": {
            "format": "%(message)s"
        }
    },
    "handlers": {
        "file": {
            "level": "DEBUG",
            "class": "logging.handlers.RotatingFileHandler",
            "formatter": "standard",
            "filename": "/var/tmp/glances.log"
        },
        "console": {
            "level": "CRITICAL",
            "class": "logging.StreamHandler",
            "formatter": "free"
        }
    },
    "loggers": {
        "debug": {
            "handlers": ["file", "console"],
            "level": "DEBUG"
        },
        "verbose": {
            "handlers": ["file", "console"],
            "level": "INFO"
        },
        "standard": {
            "handlers": ["file"],
            "level": "INFO"
        },
        "requests": {
            "handlers": ["file", "console"],
            "level": "ERROR"
        },
        "elasticsearch": {
            "handlers": ["file", "console"],
            "level": "ERROR"
        },
        "elasticsearch.trace": {
            "handlers": ["file", "console"],
            "level": "ERROR"
        }
    }
}


and start Glances using the following command line:

LOG_CFG=<path>/glances.json glances


NOTE:

Replace <path> by the folder where your glances.json file is hosted.


EXAMPLES

Monitor local machine (standalone mode):
$ glances


Monitor local machine with the web interface (Web UI), run the following command line:

$ glances -w


and open a Web browser with the returned URL

Monitor local machine and export stats to a CSV file:

$ glances –export csv –export-csv-file /tmp/glances.csv


Monitor local machine and export stats to a InfluxDB server with 5s refresh time (also possible to export to OpenTSDB, Cassandra, Statsd, ElasticSearch, RabbitMQ and Riemann):

$ glances -t 5 –export influxdb


It is also possible to export stats to multiple endpoints:

$ glances -t 5 –export influxdb,statsd,csv


Start a Glances server (server mode):

$ glances -s


Connect Glances to a Glances server (client mode):

$ glances -c <ip_server>


Connect to a Glances server and export stats to a StatsD server:

$ glances -c <ip_server> –export statsd


Start the client browser (browser mode):

$ glances –browser


AUTHOR

Nicolas Hennion aka Nicolargo <contact@nicolargo.com>

COPYRIGHT

2020, Nicolas Hennion
March 25, 2020 3.1.4.1