NAME¶

pmdamysql - MySQL database PMDA

DESCRIPTION¶

pmdamysql is a Performance Co-Pilot PMDA which extracts live performance data from a running MySQL database.

INSTALLATION¶

pmdamysql uses a configuration file from (in this order):

•

/etc/pcpdbi.conf

•

$PCP_PMDAS_DIR/mysql/mysql.conf

This file can contain overridden values (Perl code) for the settings listed at the start of pmdamysql.pl, namely:

•

database name (see DBI(3) for details)

•

database user name

•

database pass word

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

        # cd $PCP_PMDAS_DIR/mysql
        # ./Install

If you want to undo the installation, do the following as root:

        # cd $PCP_PMDAS_DIR/mysql
        # ./Remove

pmdamysql 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.

Binary Status values in text¶

Some of the status values are in the form of YES/NO or ON/OFF. Since these cannot be intepreted by tools like PMIE, they have been duplicated with a _num extension and the values of 1 (YES/ON) or 0 (NO/OFF).

Eg:¶

•

mysql.slave_status.slave_io_running

•

mysql.slave_status.slave_io_running_num

FILES¶

/etc/pcpdbi.conf

configuration file for all PCP database monitors

$PCP_PMDAS_DIR/mysql/mysql.conf

configuration file for pmdamysql

$PCP_PMDAS_DIR/mysql/Install

installation script for the pmdamysql agent

$PCP_PMDAS_DIR/mysql/Remove

undo installation script for the pmdamysql agent

$PCP_LOG_DIR/pmcd/mysql.log

default log file for error messages from pmdamysql

SEE ALSO¶

pmcd(1), pmdadbping.pl(1) and DBI(3). # vi: sw=4 ts=4 et: