开源监控解决方案：icinga（nagios）监控mysql database

[root@wxhmdb ~]# mysql -uroot -pabcd.1234

mysql> create user 'nagios'@'%' identified by 'nagios';
Query OK, 0 rows affected (0.07 sec)

[root@wxhmdb ~]# mysql -unagios -pnagios

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
+--------------------+
1 row in set (0.00 sec)

[root@nagios ~]# tar zxvf DBI-1.637.tar.gz
[root@nagios ~]# cd DBI-1.637
[root@nagios DBI-1.637]# perl Makefile.PL
[root@nagios DBI-1.637]# make all
[root@nagios DBI-1.637]# make install

[root@nagios ~]# tar zxvf DBD-mysql-4.043.tar.gz
[root@nagios ~]# cd DBD-mysql-4.043cd DBD-mysql-4.043
[root@nagios DBD-mysql-4.043]# perl Makefile.PL
[root@nagios DBD-mysql-4.043]# make all
[root@nagios DBD-mysql-4.043]# make install

[root@nagios ~]# tar zxvf check_mysql_health-2.2.2.tar.gz
[root@nagios ~]# cd check_mysql_health-2.2.2
[root@nagios check_mysql_health-2.2.2]# ./configure --prefix=/usr/local/icinga \
--with-nagios-user=icinga \
--with-nagios-group=icinga
[root@nagios check_mysql_health-2.2.2]# make
[root@nagios check_mysql_health-2.2.2]# make install

[root@nagios ~]# cd /usr/local/icinga/libexec/
[root@nagios libexec]# ./check_mysql_health
Please select a mode
Copyright (c) 2009 Gerhard Lausser

Check various parameters of MySQL databases

Usage:
check_mysql_health [-v] [-t <timeout>] [[--hostname <hostname>]
[--port <port> | --socket <socket>]
--username <username> --password <password>] --mode <mode>
[--method mysql]
check_mysql_health [-h | --help]
check_mysql_health [-V | --version]

Options:
--hostname
the database server's hostname
--port
the database's port. (default: 3306)
--socket
the database's unix socket.
--username
the mysql db user
--password
the mysql db user's password
--database
the database's name. (default: information_schema)
--replication-user
the database's replication user name (default: replication)
--warning
the warning range
--critical
the
b60
critical range
--mode
the mode of the plugin. select one of the following keywords:
connection-time          (Time to connect to the server)
uptime                   (Time the server is running)
threads-connected        (Number of currently open connections)
threadcache-hitrate      (Hit rate of the thread-cache)
threads-created          (Number of threads created per sec)
threads-running          (Number of currently running threads)
threads-cached           (Number of currently cached threads)
connects-aborted         (Number of aborted connections per sec)
clients-aborted          (Number of aborted connections (because the client died) per sec)
slave-lag                (Seconds behind master)
slave-io-running         (Slave io running: Yes)
slave-sql-running        (Slave sql running: Yes)
qcache-hitrate           (Query cache hitrate)
qcache-lowmem-prunes     (Query cache entries pruned because of low memory)
keycache-hitrate         (MyISAM key cache hitrate)
bufferpool-hitrate      &nbs
2d98
p;(InnoDB buffer pool hitrate)
bufferpool-wait-free     (InnoDB buffer pool waits for clean page available)
log-waits                (InnoDB log waits because of a too small log buffer)
tablecache-hitrate       (Table cache hitrate)
table-lock-contention    (Table lock contention)
index-usage              (Usage of indices)
tmp-disk-tables          (Percent of temp tables created on disk)
table-fragmentation      (Show tables which should be optimized)
open-files               (Percent of opened files)
slow-queries             (Slow queries)
long-running-procs       (long running processes)
cluster-ndbd-running     (ndnd nodes are up and running)
sql                      (any sql command returning a single number)

[root@nagios libexec]# ./check_mysql_health --hostname 192.168.1.203 --username nagios --password nagios --mode connection-time
OK - 0.02 seconds to connect as nagios | connection_time=0.0169s;1;5

[root@nagios libexec]# ./check_mysql_health --hostname 192.168.1.203 --username nagios --password nagios --mode uptime
OK - database is up since 7542 minutes | uptime=452541s

[root@nagios ~]# cd /usr/local/icinga/etc/objects
[root@nagios objects]# vi commands.cfg
define command{
command_name    check_mysql
command_line    $USER1$/check_mysql_health --hostname $ARG1$ --username nagios --password nagios --mode $ARG2$
}

[root@nagios objects]# vi mysql.cfg
# define a host
define host{
use                     linux-server
host_name               wxhmdb
alias                   wxhmdb
icon_image              redhat.gif
statusmap_image         redhat.gd2
address                 192.168.1.203
}

# define an hostgroup
define hostgroup{
hostgroup_name  sale-mysql
alias           database
members         wxhmdb
}

# define an servicegroup
define servicegroup {
servicegroup_name  mysql
alias   database
}

# Define a service
define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             alive
servicegroups                   ping
check_command                   check_ping!100.0,20%!500.0,60%
}

define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             os cpu usage
servicegroups                   os
check_command                   check_nrpe!check_cpu
}

define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             os memory usage
servicegroups                   os
check_command                   check_nrpe!check_memory
}

define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             os disk usage
servicegroups                   os
check_command                   check_nrpe!check_disk
}

define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             os network usage
servicegroups                   os
check_command                   check_nrpe!check_network
}

define service{
hostgroup_name                  sale-mysql
use                             generic-service
service_description             os uptime
servicegroups                   os
check_command                   check_nrpe!check_uptime
}

define service{
host_name                       wxhmdb
use                 &n
27e4
bsp;           generic-service
service_description             mysql connection time
servicegroups                   mysql
check_command                   check_mysql!192.168.1.203!connection-time
}

define service{
host_name                       wxhmdb
use                             generic-service
service_description             mysql uptime
servicegroups                   mysql
check_command                   check_mysql!192.168.1.203!uptime
}

[root@nagios ~]# cd /usr/local/icinga/etc
[root@nagios etc]# vi icinga.cfg
cfg_file=/usr/local/icinga/etc/objects/mysql.cfg

[root@nagios objects]# service icinga restart
Running configuration check...OK
Stopping Icinga: Waiting for icinga to exit ..Stopping icinga done.
Starting icinga: Starting icinga done.