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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.

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Why does disk latency drop during periods of heavy writes?

Looking at the output of Munin's diskstats plugin (which is reading from /proc/diskstats) I'm noticing what seems peculiar to me. The disk is a SSD, and I would assume, magnetic or solid state, that latency would increase during periods of heavy…
user476819
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What are network errors on munin graphs?

I have an VPS running OpenVPN server, that also does have munin installed for monitorig (I've installed it not because it's a real need, but because all these graphs looks cool). At first I've noticed that sometimes there is big amount of errors on…
Mikhail F.
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munin-run mysql_ plugin returns data but munin server gets 'Bad exit' error

I've a Munin server with several Munin nodes, all configured using Ansible so configuration it's pretty the same. Systems are Debian Jessie. The mysql_* graphs from two of the servers are present but empty while the other three servers have full…
sanzante
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Munin: cannot add new custom munin node

I've written my own simple munin-node implementation, but cannot get it to show on an master (2.0.33-1) in munin-cgi-html. munin.conf configuration: [uberlamp3] address 192.167.0.21 use_node_name yes port 19270 I monitor conversation…
BarsMonster
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Monit doesn't pick up httpd process after reset

I've installed Munin and Monit on one of my servers running CentOS 5. Everything is working well, logging and reporting info, except for when the httpd process is restarted. I have Monit set to restart httpd if it hits 2.5gb of memory usage. …
Alex Jillard
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Why is CPU usage somewhat "nicer" today than yesterday?

First post here from an eager learner more educated with front end. Please consider the following munin graph: Considering the general traffic the site on this box got today was the "same" as yesterday, and it was doing the "same" work, why was the…
mayersdesign
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Memory Interpretation Graph - Munin

Yesterday I rebooted the web server machine, but I'm trying to figure out why the graph below shows prior rebooting the memory almost full of cache and just a bit of active memory used. Would there be any problem keeping it the same was it was or…
Mike
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Munin combine network traffic graph from multiple servers

I've been searching through munin wiki and docs, tried various combinations for setting custom graphs but all ended unsuccessfull. Thing is that I actually cannot understand the mechanism behind creating custom graphs at all, and all I was doing was…
titus
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munin not showing traffic of interfaces pfsense 2.2

I'm trying out some systems and plug ins for monitoring bandwidth I came to Munin to monitor the interfaces of my PFSense 2.2.6 installing Munin was very easy and on normal debian VM's I could see all stats but on my PFSense I'm not able to get the…
Roel
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Setting warning / critical thresholds in plugin-conf.d file

I can set warning / critical thresholds in munin.conf (for a plugin that I've written) like this: load_per_core.load_per_core.warning 0.2 # Low value to trigger warnings load_per_core.load_per_core.critical 1 This works as expected, I see email…
Eric Clack
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Why is Munin being annoying?

We have a Munin server that's taken to some really strange behaviour lately. The website itself is working perfectly, we're getting our statistics, I'm getting paged, everything is otherwise fine except... Every 5 minutes I'm getting an e-mail that…
Ernie
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Fail2Ban plug-in is enabled in Munin but the graph images are broken. How to fix?

I recently installed Fail2Ban on an Ubuntu 12.04.5 server and it’s working great. Now I want to setup Munin so it can monitor it and generate graphs/reports. I found that Munin has a built-in Fail2Ban plugin that can be enabled like this: sudo ln -s…
Giacomo1968
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Munin aggregation not working (summing CPU time across servers)

I am trying to get an aggregated graph of CPU usage across some servers. I have come up with this so far: [totals] update no contacts no lb_cpu.graph_title LB Total User CPU lb_cpu.user.sum lb1.example.com:cpu.user…
Asfand Qazi
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munin-node-win32: cannot use a batch file as plugin

I am having trouble getting a defined a plugin which is a batch file to run with Munin-node-win32 (1.6.1). According to the readme, it is capable of integrating external plugins defined in the [ExternalPlugin] section: * External Plugin: * A…
the-wabbit
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How to customize munin alert message text

So, I use munin to monitor a couple hundred servers and I love it. I am trying to tweak the alert text to look a little different however, and I'm not understanding how to get it to do what I want. I have read…
Joe
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