hAProxy PMDA (HAProxy PMDA)
Имя (Name)
pmdahaproxy - HAProxy PMDA
Описание (Description)
pmdahaproxy is a Performance Metrics Domain Agent (PMDA) which
extracts live performance data from HAProxy statistics socket or
URL.
By default the HAProxy stats socket is used to retrieve the
metric but if the optional URL option is set (see below), then
the HAProxy URL is used instead.
See the HAProxy documentation for detailed description of each
metric.
Установка (Installation)
pmdahaproxy reads an optional ini-style configuration file
• $PCP_PMDAS_DIR/haproxy/haproxy.conf
This file can contain in its [pmda] section overriding values for
the following PMDA options:
• user
• socket
By default, root and /var/lib/haproxy/stats, are used as values
for these options, respectively.
The section can also contain the following parameters:
• url
• auth
• pass
When the url option is defined, URL connection to HAProxy is
used. pmdahaproxy expects CSV data from the HAProxy URL; an
example of a compatible URL is http://127.0.0.1:9000/?stats;csv .
Note that the HAProxy statistics socket and/or URL need to be
separately enabled in the HAProxy configuration file; please
refer to the HAProxy configuration documentation for details.
Depending on system and HAProxy configuration, using non-root
user may also be possible, especially with URL based connections.
Once the needed setup is ready, you can test the connection and
install the PMDA to enable access to the names and values for the
HAProxy performance metrics. To install, do the following as
root:
# cd $PCP_PMDAS_DIR/haproxy
# ./connect
# ./Install
To uninstall, do the following as root:
# cd $PCP_PMDAS_DIR/haproxy
# ./Remove
pmdahaproxy is launched by pmcd(1) and should never be executed
directly. The Install and Remove scripts notify pmcd(1) when the
agent is installed or removed.
Файлы (Files)
$PCP_PMDAS_DIR/haproxy/haproxy.conf
configuration file for the pmdahaproxy agent
$PCP_PMDAS_DIR/haproxy/connect
connection test helper using the pmdahaproxy agent
configuration
$PCP_PMDAS_DIR/haproxy/Install
installation script for the pmdahaproxy agent
$PCP_PMDAS_DIR/haproxy/Remove
undo installation script for the pmdahaproxy agent
$PCP_LOG_DIR/pmcd/haproxy.log
default log file for messages from the pmdahaproxy agent
Окружение PCP (PCP environment)
Environment variables with the prefix PCP_ are used to
parameterize the file and directory names used by PCP. On each
installation, the file /etc/pcp.conf contains the local values
for these variables. The $PCP_CONF variable may be used to
specify an alternative configuration file, as described in
pcp.conf(5).
Смотри также (See also)
PCPIntro(1), haproxy(1) and pmcd(1).
