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Questions tagged [munin]

Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems.

Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems.

Munin is a simple to configure tool that make real nice graph about your server status. It can actually deal with almost any aspect of your server (load average, network cards status, CPU usage, memory usage, postfix, exim4, mysql ...) without spending much time in configuring it.

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How do you choose which monitoring application to use?

Having a system for collecting performance statistics can be extremely useful. In the past, I've used Munin for this, and it has been invaluable in analyzing bottlenecks and various other issues. I was recently made aware of collectd, which seems…
Vetle
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How to track down memory spikes?

I have an app running on rackspace cloud (ubuntu 10.04). For some reason, over the last 3 nights, the memory has been spiking and then leveling off for about 7 hours before eventually falling off. It seems to start at midnight and last through 7…
jerhinesmith
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logrotate doesn't work for munin after last update on OpenSUSE 11.4

I'm using munin 1.4.5 on OpenSUSE 11.4. Lately logrotate was updated to fix some permission problems and after that complained with Mar 3 12:15:05 lucien logrotate: error: "/var/log/munin" has insecure permissions. It must be owned and be writable…
Martin Schröder
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How to disable DNS caching or override TTL for a certain hostname?

I've set up my own dynamic DNS service by using a script to automatically update the A record for a subdomain of one of my domains. The host with the dynamic IP address runs, among other things, a Munin node which I'm reading remotely at five-minute…
n.st
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lm-sensors how to properly set/compute only min/max read only values?

I have a (very old) computer (with an ASUS A8N-SLI DELUXE motherboard and an AMD Opteron(tm) Processor 180) that I monitor with munin, and the Vcore Voltage as read by lm-sensors is always in a Critical state because the input volt is always below…
Vangelis Tasoulas
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Very high I/O wait time on KVM virtual machine

Debian wheezy AMD64, 3 cores, 2560mb ram (virtual machine). 1 virtual drive on ext4, running on KVM. I decided to move it from raw to qcow2. Everything is ok and everything was going ok during migration. But it did not resolve my problem. It has…
MIrra
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How to check easily the munin alert-email-notification?

I run the munin monitoring application on my debian Wheezy server and I would like to test the alert-email-notification procedure. To do that, I add in munin.conf the following line: df._home.warning 25 I set 25 because the df command returns 30…
Bertaud
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munin phpfpm plugin

I have setup PHP-FPM plugin All graphs works except three PHP5-FPM Average Process Size PHP5-FPM Memory Usage PHP5-FPM Processes setup /etc/munin/plugin-conf.d/munin-node [phpfpm_*] env.url http://127.0.0.1/status env.ports 80 env.phpbin…
clarkk
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monitor running services and ports

What is the best way to monitor running services and ports on a system with systemd? My intent is to alert me, when a service stops running or if a new service is listening on a new port (possibly a security breach). Currently, I have a script that…
Walter
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Munin doesn't show new host when using munin-cgi-html

A few months ago, I switched from running Munin in static munin-cron mode to dynamic munin-html-cgi mode, but now when I add a new host to monitor it, it doesn't show up in the generated HTML, even though I can see that it is receiving the new data…
Joril
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Can not get munin to work

Have installed munin on several servers, but in the recent months I can not install it anymore apt-get install munin version 2.0.49-1 server { listen 80; server_name munin.myserver.com; root /var/cache/munin/www; …
clarkk
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Drilling down in graphs to see individual processes

Are there any system monitoring tools like Munino or Observium, where you can drill down in a graph to see individual processes? Like say if there's a graph of CPU usage, is it possible to click on the graph and then see which processes were taking…
NeoMentat
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How to use munin ping_ plugin to track packetloss

ping_ does not provide any graph (graph no in config) but it provides value, that could be used to trigger critical and warning levels. In munin.conf I have ping_.packetloss.warning 20 and in plugin config I also have env.packetloss_warn 20 My…
user996142
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Munin mysql plugin silently fails

I installed this Munin MySQL plugin on a RHEL 6 machine and I'm experiencing a strange behavior. I'm not getting any data in the Munin web page (the Categories list does not show a mysql link), but I'm not receiving any error neither. All other…
dr_
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Is it possible to monitor JVM usage of Elasticsearch via Munin?

I'd like to use Munin to monitor the status of the JVM used by Elasticsearch, which is run via Java (output of ps follows): elastic+ 1083 1 3 09:29 ? 00:13:23 /usr/bin/java -Xms8g -Xmx8g -Djava.awt.headless=true -XX:+UseParNewGC…
dr_
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