ProxySQL is a high performance, high availability, protocol aware proxy for MySQL and forks (like Percona Server and MariaDB). All the while getting the unlimited freedom that comes with a GPL license.
Its development is driven by the lack of open source proxies that provide high performance.
- Official website: http://www.proxysql.com/
- Benchmarks and old blog posts can be found at http://www.proxysql.blogspot.com/
- Forum: https://groups.google.com/forum/#proxysql/
- Wiki: https://github.com/sysown/proxysql/wiki/
- Linkedin group: https://www.linkedin.com/groups/13581070/
This repository contains proxysql-nagios, a script for monitoring ProxySQL using Nagios (or a Nagios drop in replacement such as Icinga or Shinken). In addition, you have the option of outputting regular --text format as well as to log to a --logfile in order to use this for a different monitoring tool or log monitoring.
The script has the ability to monitor the following:
- Global status variable values, either higher or lower than the specified thresholds
- Connection pool usage (%) per server
- Hostgroup availability (i.e. number of available servers per hostgroup)
- Query rule configuration (i.e. compare RUNTIME to DISK persisted)
- Service uptime status
## You may first need to install system Python & MySQL dev packages as well as MySQL-python
sudo apt install python-dev libmysqlclient-dev
sudo pip install MySQL-python
# or alternatively just the system package if you prefer not to use `pip`
sudo apt install python-mysqldb
The proxysql-nagios script has a lot of options detailed viewable using the --help switch:
$ ./proxysql-nagios --help
usage: proxysql-nagios [-h] [-u USER] [-p PASSWD] [-H HOST] [-P PORT]
[-d DEFAULTS_FILE] -t {conns,hg,rules,status,var}
[-n VAR_NAME] [-l] [-r] [-w WARN_THRESH]
[-c CRIT_THRESH] [-i INCLUDE_HG] [-g IGNORE_HG]
[--log-file LOGFILE] [--text]
ProxySQL Nagios Check version 1.0.0
Options:
-h, --help show this help message and exit
-u USER, --user USER ProxySQL admin username (default=admin)
-p PASSWD, --password PASSWD
ProxySQL admin password (default=admin)
-H HOST, --host HOST ProxySQL hostname / IP (default=127.0.0.1)
-P PORT, --port PORT ProxySQL admin port (default=6032)
-d DEFAULTS_FILE, --defaults-file DEFAULTS_FILE
ProxySQL defaults file (include the path to the file
location and specify [proxysql-nagios] group)
-t {conns,hg,rules,status,var}, --type {conns,hg,rules,status,var}
ProxySQL check type (one of conns,hg,rules,status,var)
-n VAR_NAME, --name VAR_NAME
ProxySQL variable name to check
-l, --lower Alert if ProxySQL value are LOWER than defined WARN /
CRIT thresholds (only applies to "var" check type
-r, --runtime Force ProxySQL Nagios check to query the
runtime_mysql_XXX tables rather than the mysql_XXX
tables, although this is more correct it can lead to
excessive logging in ProxySQL and needs to be
explicitely enabled (applies to "hg" and "rules" check
types)
-w WARN_THRESH, --warning WARN_THRESH
Warning threshold
-c CRIT_THRESH, --critical CRIT_THRESH
Critical threshold
-i INCLUDE_HG, --include-hostgroup INCLUDE_HG
ProxySQL hostgroup(s) to include (only applies to "--
type hg" checks, accepts comma-separated list)
-g IGNORE_HG, --ignore-hostgroup IGNORE_HG
ProxySQL hostgroup(s) to ignore (only applies to "--
type hg" checks, accepts comma-separated list)
--log-file LOGFILE File to log to (default = stdout)
--text Disable Nagios output mode and output pure textBelow you can also find a sample Nagios configuration file for a set of three ProxySQL hosts (10.10.10.1 / 10.10.10.2 / 10.10.10.3). You will either need to specify the ProxySQL username / password on the defined COMMAND or you will need to use a MySQL defaults file such as the one specified (NOTE: you will need to enable a remote admin user as described here so that this check can query ProxySQL remotely else you should configure this check via NRPE using the local admin ProxySQL user):
[proxysql-nagios]
user=radmin
password=radmin
define command{
command_name check_proxysql_uptime
command_line $USER1$/proxysql-nagios -H $HOSTADDRESS$ -P $_HOSTPADMIN_PORT$ -d /etc/nagios/proxysql.cnf -t status
}
define command{
command_name check_proxysql_status_var
command_line $USER1$/proxysql-nagios -H $HOSTADDRESS$ -P $_HOSTPADMIN_PORT$ -d /etc/nagios/proxysql.cnf -t var -n $ARG1$ -w $ARG2$ -c $ARG3$
}
define command{
command_name check_proxysql_conn_pool
command_line $USER1$/proxysql-nagios -H $HOSTADDRESS$ -P $_HOSTPADMIN_PORT$ -d /etc/nagios/proxysql.cnf -t conns -w $ARG1$ -c $ARG2$
}
define command{
command_name check_proxysql_hg
command_line $USER1$/proxysql-nagios -H $HOSTADDRESS$ -P $_HOSTPADMIN_PORT$ -d /etc/nagios/proxysql.cnf -t hg -w $ARG1$ -c $ARG2$ --include $ARG3$
}
define command{
command_name check_proxysql_query_rules
command_line $USER1$/proxysql-nagios -H $HOSTADDRESS$ -P $_HOSTPADMIN_PORT$ -d /etc/nagios/proxysql.cnf -t rules --runtime
}
Icinga configuration examples are in the icinga2 directory.
Deploy the proxysql-nagios script on the server to monitor, i.e., /usr/lib/nagios/plugins/check_proxysql.
Set the correct path to the script and add icinga2/check_proxysql.conf in your icinga global-template zone.
command = [ PluginDir + "/check_proxysql" ]
Add check rules in your icinga2 config, there are some examples in icinga2/services.conf.
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