NAME¶

pmdaredis - Redis performance metrics domain agent (PMDA)

DESCRIPTION¶

This PMDA extracts performance data from sending the INFO command to a Redis (redis.io) server, which includes:

•

General information about the Redis server

•

Client connections

•

Memory consumption

•

Persistence statistics

•

Replication statistics

•

CPU consumption statistics

•

Redis command statistics

•

Redis Cluster statistics

•

Database related statistics

The hostname (localhost), port (6379 by default) and other configuration information must be specified in the $PCP_PMDAS_DIR/redis/redis.conf file.

# cd $PCP_PMDAS_DIR/redis
# [ edit redis.conf ]
host=localhost.localdomain:6379

Once this is setup, you can access the names and values for the redis performance metrics by doing the following as root:

# cd $PCP_PMDAS_DIR/redis
# ./Install

To uninstall, do the following as root:

# cd $PCP_PMDAS_DIR/redis
# ./Remove

pmdaredis 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.

FILES¶

$PCP_PMDAS_DIR/redis/redis.conf

mandatory configuration file listing monitored redis instances

$PCP_PMDAS_DIR/redis/Install

installation script for the pmdaredis agent

$PCP_PMDAS_DIR/redis/Remove

undo installation script for the pmdaredis agent

$PCP_LOG_DIR/pmcd/redis.log

default log file for error messages from pmdaredis

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).

SEE ALSO¶

pmcd(1).