SYNOPSIS

hatop -s SOCKET [OPTIONS]

DESCRIPTION

HATop is an interactive ncurses client and real-time monitoring, statistics displaying tool for the HAProxy TCP/HTTP load balancer.

HATop's appearance is similar to top(1). It supports various modes for detailed statistics of all configured proxies and services in near realtime. In addition, it features an interactive CLI for the haproxy unix socket. This allows administrators to control the given haproxy instance (change server weight, put servers into maintenance mode, ...) directly out of hatop (using keybinds or the CLI) and monitor the results immediately.

HATop uses a unix domain socket to communicate with HAProxy. This can be configured in the HAProxy configuration using the "stats socket" option. To enable all of HATop's features the "level" parameter of this option should be set to "admin".

OPTIONS

--version

show version number and exit

-h, --help

show help message and exit

-s SOCKET, --unix-socket=SOCKET

path to the haproxy stats socket

-i INTERVAL, --update-interval=INTERVAL

update interval in seconds (1-30, default: 3)

-m MODE, --mode=MODE

start in specific mode (1-5, default: 1)

-n, --read-only

disable the cli and query for stats only

The following filter options may be given multiple times:

-f FILTER, --filter=FILTER

stat filter in format "<iid> <type> <sid>"

-p PROXY, --proxy=PROXY

proxy filter in format "<pxname>"

KEYBINDS

Hh?

Display help screen

Qq

Quit

TAB

Cycle mode forwards

S-TAB

Cycle mode backwards

ESC-n

Switch to mode n, where n is the numeric mode id

ESC

Jump to previous mode

ENTER

Display hotkey menu for selected service

SPACE

Copy and paste selected service identifier to the CLI

UP / DOWN / PGUP / PGDOWN / HOME / END

Scroll the stat views to select a given service

HOTKEYS

F4

Restore initial server weight

F5

Decrease server weight: - 10

F6

Decrease server weight: - 1

F7

Increase server weight: + 1

F8

Increase server weight: + 10

F9

Enable server (return from maintenance mode)

F10

Disable server (put into maintenance mode)

AUTHOR

HATop and this man page was written by John Feuerstein.