Nagios で Ganglia を 監視

INET

Gangliaにあるcheck_ganglia.py をコピーすれば終わりみたいだけど見つからない。



[root@L2 nagios]# find / -name *ganglia* -print

/usr/lib/libganglia-3.0.7.so.0

/usr/lib/libganglia.so

/usr/lib/libganglia-3.0.7.so.0.0.0

/usr/share/ganglia

/usr/share/ganglia/templates/Rocks/images/ganglia.jpg

/usr/share/ganglia/ganglia.php

/usr/share/ganglia/get_ganglia.php

/usr/share/doc/ganglia-3.0.7

/usr/share/doc/ganglia-web-3.0.7

/usr/include/ganglia.h

/usr/bin/ganglia-config

/etc/ganglia

/etc/httpd/conf.d/ganglia.conf

/var/lib/ganglia

/var/www/html/ganglia

[root@L2 nagios]#


yumでインストールしているから・・・・
しょうがないのでソースから持ってくる（スマートじゃない？）



[root@L2 tmp]# wget http://sourceforge.net/projects/ganglia/files/ganglia%20monitoring%20cor

e/3.1.7/ganglia-3.1.7.tar.gz/download



Resolving sourceforge.net... 216.34.181.60

Connecting to sourceforge.net|216.34.181.60|:80... connected.

HTTP request sent, awaiting response... 302 Found

Location: http://downloads.sourceforge.net/project/ganglia/ganglia%20monitoring%20core/3.1.7/ganglia-3.1.7.tar.gz?r=&ts=1300890563&use_mirror=jaist [following]



Resolving downloads.sourceforge.net... 216.34.181.59

Connecting to downloads.sourceforge.net|216.34.181.59|:80... connected.

HTTP request sent, awaiting response... 302 Found

Location: http://jaist.dl.sourceforge.net/project/ganglia/ganglia%20monitoring%20core/3.1.7/ganglia-3.1.7.tar.gz [following]



Resolving jaist.dl.sourceforge.net... 150.65.7.130, 2001:200:141:feed::feed

Connecting to jaist.dl.sourceforge.net|150.65.7.130|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1278023 (1.2M) [application/x-gzip]

Saving to: `ganglia-3.1.7.tar.gz'
100%[==================================================>] 1,278,023    341K/s   in 3.7s
2011-03-23 23:29:21 (341 KB/s) - `ganglia-3.1.7.tar.gz' saved [1278023/1278023]
[root@L2 tmp]#

[root@L2 tmp]# tar zxf ./ganglia-3.1.7.tar.gz

[root@L2 tmp]# cd ./ganglia-3.1.7/contrib/

[root@L2 contrib]#

[root@L2 contrib]# ls

check_ganglia.py     ganglia_gmond.xml.in        README.contrib

diskfree_report.php  ganglia-hosts-lowercase.sh  README-removespikes

ganglia_gmetad.xml   ganglia-rrd-modify.pl       removespikes.pl
[root@L2 contrib]# cp ./check_ganglia.py /usr/lib/nagios/plugins/
ゲッツ！！

設定ファイルの追加



[root@L2 nagios]# vi nagios.cfg
     54 # Extended host/service info definitions are now stored along with

     55 # other object definitions:

     56 #cfg_file=/etc/nagios/hostextinfo.cfg

     57 #cfg_file=/etc/nagios/serviceextinfo.cfg

     58 cfg_file=/etc/nagios/ganglia-services.cfg

設定ファイル



[root@L2 nagios]# vi ./ganglia-services.cfg
define servicegroup {

  servicegroup_name ganglia-metrics

  alias Ganglia Metrics

}
define command {

  command_name check_ganglia

  command_line $USER1$/check_ganglia.py -h $HOSTNAME$ -m $ARG1$ -w $ARG2$ -c $ARG3$

}
define service {

  use linux-service

  name ganglia-service

  hostgroup_name L-servers

  service_groups ganglia-metrics

  notifications_enabled 0

}



define service {

  use ganglia-service

  service_description load_one

  check_command check_ganglia!load_one!4!5

}



define service {

  use ganglia-service

  service_description disk_free

  check_command check_ganglia!disk_free!10!5

}





[root@L2 nagios]#

サービス再起動

しばらくすると監視が始まるが・・・
「CHECKGANGLIA UNKNOWN: Error while getting value "Host/value not found" 」
上記のようなエラーが発生

どうもローカルホストしか見ていない模様。

ローカル



[root@L2 plugins]# /usr/lib/nagios/plugins/check_ganglia.py -h L2 -m disk_free -w 1700 -c 1600

CHECKGANGLIA OK: disk_free is 6.84

リモート



[root@L2 plugins]# /usr/lib/nagios/plugins/check_ganglia.py -h L1 -m disk_free -w 1700 -c 1600

CHECKGANGLIA UNKNOWN: Error while getting value "Host/value not found"

これだと対象サーバに、nrpe + check_ganglia.py 入れる必要がありそうだけど。。。。
であれば nrpe でリソース監視してもよくね？

うーん。。