problem about system-monitoring-Collection of common programming errors

• 
  scarba05
  linux centos monitoring munin system-monitoring
  We’ve installed munin monitoring on one of our servers. Generally it seems to be working well but occasionally, 4 times in 2 months to be exact, munin-cron has generated the following error:[FATAL] There is nothing to do here, since there are no nodes with any plugins. Please refer to http://munin-monitoring.org/wiki/FAQ_no_graphs at /usr/share/munin/munin-html line 38On searching for this error I can only find issues where munin is not working at all, rather than the intermittent problem that
• 
  Andrea
  monitoring configuration monit system-monitoring
  I am trying to configure Monit on my local machine to get a taste at how it works, but I have some issues.What I am trying to do is to get any evidence that Monit is up and running correctly and is actually monitoring something. So my /etc/monit/monitrc looks likeset daemon 60 set logfile /var/log/monit.log set idfile /var/lib/monit/id set statefile /var/lib/monit/state set eventqueuebasedir /var/lib/monit/eventsslots 100 set httpd port 2812 andallow username:passwordcheck process apache2 with
• 
  ddyer
  hardware-failure system-monitoring
  As an experienced user, I sometimes notice that things are not going well with my computer. For example, my backup drive recently started cycling up and down, so I guessed it was probably dying, and replaced it. I detected this with my ears. Windows did not seem to notice or care.There ought to be software that monitors overall system health by keeping track of things like this, so that unusual events or increasing error rates will not be shrugged off. Among other things: disk errors that a

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