server_monitoring
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server_monitoring [2009/11/27 08:38] – alan | server_monitoring [2010/06/21 22:48] – 172.26.14.218 | ||
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===== Server Monitoring ===== | ===== Server Monitoring ===== | ||
- | * [[#ganglia|Ganglia]] - Monitors cluster CPU, disk, network usage | + | * [[server_monitoring: |
- | * [[#monit|Monit]] - Monitors specific services | + | * [[server_monitoring: |
- | * [[#nagios|Nagios]] - Monitors | + | * [[server_monitoring: |
- | + | | |
- | ===== Ganglia ===== | + | |
- | + | ||
- | [[http:// | + | |
- | + | ||
- | You can see the ganglia installation here: http:// | + | |
- | + | ||
- | For some reason sometimes the graphs do not draw. If you reboot the cluster the graphs work for some days and then seem to stop drawing (the graphs appear blank). | + | |
- | + | ||
- | {{: | + | |
- | + | ||
- | Interesting documentation: | + | |
- | + | ||
- | ==== Troubleshooting ==== | + | |
- | When Ganglia has problems displaying nodes it may need to be restarted. | + | |
- | * Stop data collection daemon on HPC: '' | + | |
- | * Stop monitoring daemon on HPC: '' | + | |
- | * Stop monitoring daemon on compute nodes: '' | + | |
- | * Start data collection daemon on HPC: '' | + | |
- | * Star monitoring daemon on HPC: '' | + | |
- | * Start monitoring daemon on compute nodes: '' | + | |
- | + | ||
- | Now go check the Ganglia web interface and see if the nodes have returned. | + | |
- | + | ||
- | ===== Monit ===== | + | |
- | + | ||
- | Monit is a free open source utility for managing and monitoring, processes, files, directories and filesystems on a UNIX system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations. | + | |
- | Monit can start a process if it does not run, restart a process if it does not respond and stop a process if it uses too much resources. it logs to syslog or to its own log file and notifies you about error conditions and recovery status via customizable alert. | + | |
- | Monit provides a built-in HTTP(S) interface and you can use a browser to access the Monit server. | + | |
- | + | ||
- | M/Monit expand upon Monit' | + | |
- | + | ||
- | Get the latest version at: http:// | + | |
- | + | ||
- | < | + | |
- | $ tar xfz monit-5.0.3.tar.gz | + | |
- | $ cd monit-5.0.3 | + | |
- | $ ./configure && make && make install</ | + | |
- | Accessing monit: | + | |
- | http:// | + | |
- | + | ||
- | ===== Nagios ===== | + | |
- | + | ||
- | Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. http:// | + | |
- | + | ||
- | === Installation === | + | |
- | + | ||
- | ---- | + | |
- | + | ||
- | Download the latest version of nagios while hot, from http:// | + | |
- | < | + | |
- | $ cd nagios-3.2.0 | + | |
- | $ ./ | + | |
- | $ make all | + | |
- | $ useradd nagios | + | |
- | $ make install | + | |
- | $ make install-init | + | |
- | $ make install-commandmode | + | |
- | $ make install-config | + | |
- | $ make install-webconf | + | |
- | </ | + | |
- | === Configuration === | + | |
- | + | ||
- | ---- | + | |
- | Running the following command will create a new file called htpasswd.users in the / | + | |
- | < | + | |
- | + | ||
- | Download and install plugins | + | |
- | < | + | |
- | $ wget http:// | + | |
- | $ tar xfz nagios-plugins-1.4.14.tar.gz | + | |
- | $ cd nagios-plugins-1.4.14 | + | |
- | $ ./configure && make && make install | + | |
- | </ | + | |
- | Edit the configuration files to add host and services | + | |
- | < | + | |
- | + | ||
- | Check remote services http:// | + | |
- | === Accessing Nagios === | + | |
- | + | ||
- | ---- | + | |
- | http:// | + | |
- | + | ||
- | with username = " | + | |
- | + |