First, Naigos restart precautions
1, configuration file Integrity (Web page synchronization) needs to be detected before restarting the Nagios service
2, master-Slave synchronization note the sequence of operations, do not worry, detection alarm mechanism (turn off notification)
3. See if the Pnp4nagios process is turned on as an exception
3.1 See if the Ll/usr/local/nagios/var/rw/nagios.cmd permission is 777 if not modified
3.2 chmod 777 Nagios.cmd
3.3 Manually Open/ETC/INIT.D/NPCD start (small solar flow chart)
3.4 Restart HTTPD/ETC/INIT.D/HTTPD Restart
3.5 Manual Web page open detection time
4, after the device restarts, see if the nagios process is normal, such as an exception manually open the Nagios process/usr/local/nagios/bin/nagios-d/usr/local/nagios/etc/nagios.cfg
Second, cacti handling alarm matters follow-up
1, view the log to view a large number of alarms, view memory large use the command to clean up memory
Clear Memory
Sync
Echo 3 >/proc/sys/vm/drop_caches
2, clean up and return to normal, and view SNMP running status, such as exception manually open service SNMPD start
This article is from the "Useful Notes" blog, so be sure to keep this source http://qiuyt.blog.51cto.com/1229789/1588374
NAGIOS,CACTI Troubleshooting Precautions