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server_monitoring [2009/11/27 12:10] alanserver_monitoring [2010/06/21 22:41] 172.26.14.218
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 ===== Server Monitoring ===== ===== Server Monitoring =====
-  * [[#ganglia|Ganglia]] - Monitors cluster CPU, disk, network usage +  * [[server_monitoring:ganglia|Ganglia]] - Monitors cluster CPU, disk, network usage 
-  * [[#monit|Monit]] - Monitors specific services +  * [[server_monitoring:monit|Monit]] - Monitors specific services 
-  * [[#nagios|Nagios]] - Monitors services services +  * [[server_monitoring:nagios|Nagios]] - Monitors servers,hosts and services 
- +  [[server_monitoring:zabbix|Zabbix]] -Monitor servers,host and services
-===== Ganglia ===== +
- +
-[[http://ganglia.info/|Ganglia]] is a system for measuring, recording, and graphing certain metrics about hosts in a cluster.  Metrics include things like CPU load, network traffic, disk space, RAM utilization, etc.  These metrics are saved and graphed periodically by [[http://oss.oetiker.ch/rrdtool|RRDtool]]. Rocks automatically configures the head node to query the compute nodes and has a web-based interface where you can monitor the health of the cluster. +
- +
-You can see the ganglia installation here:  http://hpc.ilri.cgiar.org/ganglia +
- +
-{{:ganglia_diagram_smaller.gif|}} +
- +
-Interesting documentation: http://www.ibm.com/developerworks/wikis/display/WikiPtype/ganglia +
- +
-==== Troubleshooting ==== +
-From time to time there are problems with Ganglia's web interface.  You can restart the needed services following this basic procedure: +
- +
-  - Stop data collection daemon on HPC: ''service gmetad stop'' +
-  - Stop monitoring daemon on HPC: ''service gmond stop'' +
-  - Stop monitoring daemon on compute nodes: ''rocks run host compute %%'%%service gmond stop%%'%%'' +
-  - Start data collection daemon on HPC: ''service gmetad start'' +
-  - Star monitoring daemon on HPC: ''service gmond start'' +
-  - Start monitoring daemon on compute nodes: ''rocks run host compute %%'%%service gmond start%%'%%'' +
- +
-Now go check the Ganglia web interface and see if the nodes have returned.+
  
 ===== Monit ===== ===== Monit =====
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 with  username = "nagiosadmin" and password = "nagios" with  username = "nagiosadmin" and password = "nagios"
 +==== Zabbix ====
 +----
 +Installation: Ref : http://www.zabbix.com/documentation/1.8/start
 +
 +RHEL-compatible Linux: Ref: http://andrewfarley.com/sysadmin/rpm-repository-online
 +<code>sudo echo '[andrewfarley]
 +name=Andrew Farley RPM Repository
 +baseurl=http://repo.andrewfarley.com/centos/$releasever/$basearch/
 +enabled=1
 +gpgcheck=0' > /etc/yum.repos.d/andrewfarley.com.repo</code>
 +
 +
 +
 +And then you can install zabbix agent, zabbix server, zabbix get, or zabbix proxy with…
 +<file>
 +    sudo yum install zabbix-agent
 +    sudo yum install zabbix-server
 +    sudo yum install zabbix-get
 +    sudo yum install zabbix-proxy </file>
 +
 +If it fails to install, you might need to clean the metadata with the following command and try again…
 +
 +    sudo yum clean metadata
 +
 +
 +Debian-Based Linux:
 +----
 +<code>
 +root@simple:~# apt-cache search zabbix 
 +zabbix-agent - network monitoring solution - agent
 +zabbix-frontend-php - network monitoring solution - PHP front-end
 +zabbix-proxy-mysql - network monitoring solution - proxy (using MySQL)
 +zabbix-proxy-pgsql - network monitoring solution - proxy (using PostgreSQL)
 +zabbix-server-mysql - network monitoring solution - server (using MySQL)
 +zabbix-server-pgsql - network monitoring solution - server (using PostgreSQL)
 +root@simple:~# aptitude install zabbix-proxy-mysql zabbix-agent zabbix-server-mysql zabbix-frontend-php
 +</code>
 +
 +=== Accessing Zabbix ===
 +
 +http://172.26.12.29/zabbix
 +username: Admin
 +password: zabbix