server_monitoring
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| server_monitoring [2009/11/17 11:30] – 172.26.0.166 | server_monitoring [2009/11/27 08:38] – alan | ||
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| Line 16: | Line 16: | ||
| Interesting documentation: | Interesting documentation: | ||
| - | ==== Notes ==== | + | ==== 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: '' | ||
| - | It appears as if other CGIAR clusters have been configured to query our '' | + | Now go check the Ganglia web interface and see if the nodes have returned. |
| - | < | + | |
| - | # Gmond config file for Cluster Cluster. | + | |
| - | # Generated by ganglia.xml node without aid from the database. | + | |
| - | # | + | |
| - | name " | + | |
| - | owner " | + | |
| - | url " | + | |
| - | latlong " | + | |
| - | mcast_channel " | + | |
| - | + | ||
| - | + | ||
| - | # | + | |
| - | # Increase size of gmond user (gmetric) hash table. | + | |
| - | # | + | |
| - | num_custom_metrics 2048 | + | |
| - | + | ||
| - | # Uncomment the next line for monitoring by the Rocks Cluster Network. | + | |
| - | trusted_hosts 220.227.242.214 # hpc.icrisat.cgiar.org | + | |
| - | trusted_hosts 202.123.56.187 | + | |
| - | trusted_hosts 216.244.151.133 # ? | + | |
| - | trusted_hosts 200.62.229.37 | + | |
| - | + | ||
| - | # Listen only on the private cluster | + | |
| - | mcast_if eth0</ | + | |
| - | + | ||
| - | ==== Connections refused ==== | + | |
| - | I kept seeing this error in ''/ | + | |
| - | < | + | |
| - | Apparently that is the Potato Center' | + | |
| ===== Monit ===== | ===== Monit ===== | ||
| Line 70: | Line 48: | ||
| Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. http:// | Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. http:// | ||
| - | ====== Installation ====== | + | === Installation === |
| + | |||
| + | ---- | ||
| Download the latest version of nagios while hot, from http:// | Download the latest version of nagios while hot, from http:// | ||
| - | <code>wget http:// | + | <file>$ wget http:// |
| + | $ cd nagios-3.2.0 | ||
| + | $ ./ | ||
| + | $ make all | ||
| + | $ useradd nagios | ||
| + | $ make install | ||
| + | $ make install-init | ||
| + | $ make install-commandmode | ||
| + | $ make install-config | ||
| + | $ make install-webconf | ||
| + | </file> | ||
| + | === Configuration === | ||
| + | |||
| + | ---- | ||
| + | Running the following command will create a new file called htpasswd.users in the / | ||
| + | <code>htpasswd -c / | ||
| + | |||
| + | 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 to be monitored: | ||
| + | < | ||
| + | |||
| + | Check remote services http:// | ||
| + | === Accessing Nagios === | ||
| + | |||
| + | ---- | ||
| + | http:// | ||
| + | |||
| + | with username = " | ||
| + | |||