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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Munin graphing by CGI

I have Munin working just fine, but any time I try to do cgi graphing - it just stops graphing... no errors in the log, nothing. I've followed the instructions here: ...
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1answer
1k views

Munin - apache_watch_ plugin, does not show any data in the graphs that shows activity for per vhosts

I am using Munin for monitoring my server. I installed the apache_watch_ plugin so that i could see apache related activity. The graphs for apache_accesses, apache_processes and apache_volume work ...
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1answer
10 views

Munin restart services like monit

The German monit wiki page says: Die gleichen Funktionen, aber mit einer aufwendigeren grafischen Web-Oberfläche versehen, bietet Munin Translation Same functions (as monit) but with a more ...
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1answer
30 views

Too many emails from munin

I have recently taken the time to look into munin and fix some of the plugins that wore not working. Among them yum. Now for the last few days there have been a few updates released for my centos and ...
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1answer
25 views

Munin bandwidth_ plugin not showing data

I'm trying to graph the cummulative bandwidth on an interface using Munin. Apparently there is a bandwidth_ plugin for this (see ...
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1answer
45 views

restrict shell commands for munin-node (netcat)

I've spent fair amount of day fiddling with this, and I'm about to give up (for today). I followed the instructions outlined here. All works at the moment. But to increase security I'd like to ...
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1answer
9 views

Permissions issue in Munin

I have a Fedora machine on which I have successfully installed and configured Munin. The issue that I now face is of permissions. So basically, I have a directory where I have pointed all my html ...
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1answer
30 views

Munin Postgres plugins: DBD::Pg not found

I'm trying to activate some of the Postgresql plugins for Munin. When I run munin-node-configure --suggest | grep postgres I get the following output: postgres_bgwriter | no | no [DBD::Pg ...
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2answers
51 views

munin-cron Unable to Copy Contents

I recently installed munin on my (Fedora12 based) server. Now, I wanted to get all the graphs in a static directory (The application runs on Django). So, I edited the file /etc/munin/munin.conf by ...
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1answer
646 views

Adding total bandwidth graph to Munin

I've been trying to figure this out for an hour... how to get a total bandwidth graph (showing all network traffic) in Munin? I just installed Munin, got several plugins added but what I'd really like ...
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2answers
1k views

Getting Pango-WARNING: Invalid UTF-8 string passed to pango_layout_set_text()

About three days ago, I noticed the exim mailqueue started filling up on one of my servers, and upon inspecting some of the emails using # exim -Mvb $ID, I noticed they were being sent to some system ...
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0answers
25 views

cannot reach munin port on other AWS instance

2 AWS instances, in the same region but different availability zones, one is in regular EC2 and the other is in VPC, both have an Elastic IP, both are 64bit Amazon Linux AMI 2014.03.1. Both are ...
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1answer
30 views

How do I change the email address that Munin alerts are sending from?

The issue I'm having here is that when I get an alert from Munin, I want it to create a ticket. When the ticket it created, it sends an email back to the email address that Munin sent from each time ...
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1answer
858 views

How to setup Munin permissions?

I've just installed munin on my CentOS server but I can't get it to output anything to the html directory I set in /etc/munin/munin.conf htmldir /home/mydir/munin In ...
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2answers
556 views

How to monitor servers in different network using munin?

I would like to monitor some servers using munin, that are in a different network and are not reachable directly by telnet. I wonder what are the possibilities: Can I install a central node in the ...
8
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1answer
192 views

How to mark every deploy in munin?

Anyone knows if it's possible to mark every deploy with a red vertical line in munin graphs? It will be great to debug possible performance holes in the code. Thanks in advance!
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2answers
67 views

Should munin be password-protected?

We use Munin at work. There is a Munin install - which right now is open to the world. An admin doesn't think he needs to password-protect it. What's the worst that can happen? How can I convince ...
3
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1answer
3k views

How to change Munin's graph colors?

I started to use Munin for monitoring, but I want to change colors of the graph, which are drawn by it's 'loggrep' plugin. Is there any way to specify colors in the config file?
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3answers
93 views

Delaying munin notifications

I have a few servers that are monitored by munin, and fairly frequently one of a selection of units has a transient failure to read data. That gets me two emails, one telling me that all the values ...
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3answers
4k views

Configuring the Tomcat Plugin of Munin

It would be great if anyone can share a working configuration for the tomcat_ plugin of munin. I need to monitor several tomcat instances on one machine. So far I can't figure out: which are the ...
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1answer
71 views

monitoring nginx-plus vhost trafic with munin

I am using nginx-plus (the version you have to pay for) and I would like to monitor acces by vhost. When I used nginx free version, I could easily monitor accesses with the byprojects munin plugin: ...
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2answers
285 views

How do I change, sort, add, remove graphs with Munin?

To keep an eye on what's happening with our production servers I recently discovered Munin. It was trivial to install but I'm having a lot of trouble working out how to add/remove graphs. I found ...
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11 views

Remove future entries from munin after date change

Having changed the date on the system during some unrelated testing, munin created entries in its database files based on the incorrect future date; it also recreated the summary files which use this ...
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2answers
45 views

How to bind munin to use a vhost or port number?

Currently I'am able to access my munin setup using the default url. www.mydomain.com/munin For security reasons, I want to only allow Munin to be access using port number. Like this ...
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133 views

Munin not working, error message

Munin does not show any graph... When I make munin-update I have this error: /usr/share/munin/munin-update 2014/02/15 10:53:43 [ERROR] config error under [amavis] for 'group adm' : Parse error in ...
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94 views

Munin Data gathering - Some nodes fail gathering data

Hy Everybody I've run into a strange Problem with munin for which i didnt find any solution... maybe somebody here will be able to help. Im running the munin-master on a debian 7. Here's the config ...
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11 views

How to extract single day Munin graphs

We have one monitoring server and on that I install Munin. Now i need to extract Feb 1 Graphs. Is it possible to extract the graph and will it effect the latest graphs
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4answers
1k views

Stop Munin messages from /var/log/syslog

I am using munin on a system which is adding a log entry in syslog everytime the munin-node cron job executes. It is not an issue but it sometimes makes other errors spotting difficult. There are ...
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24 views

Ubuntu munin-node reports incorrect committed memory

Ever since we upgraded our vps server, munin's committed memory goes through the roof, and we don't even have that much physical memory on our server in the first place. Is this something we should ...
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1answer
101 views

How to access min/max/avg value in munin plugins?

I'm writing a munin plugin and display a GAUGE which displays a value which constantly increases. What I want to add to that plugin is a day/week/etc. average. I simply have to substract the day's ...
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1answer
94 views

Why does this iptables config prevent munin from working?

I have created an iptables config which I thought that I understood, however it seems to be preventing munin from generating graphs and I'm not sure why. If I disable iptables, munin will generate ...
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0answers
35 views

CPU graph in Munin showing 0.00 utilization

Munin Server installed on Redhat 5.6 is connected to one the Windows Server is showing CPU graph 0.00. I checked on Munin Server and find no problem. Not even permission error. Im sure CPU utilization ...
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6answers
11k views

Nagios graphing solutions vs Munin/Cacti/Ganglia

I've got a nagios server setup for monitoring ~ 30 Windows servers. I want to add some trending charts. I've read that nagios graphing plugins are simple and many people use seperate, standalone ...
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4answers
10k views

Munin on Centos 6 - missing perl MODULE_COMPAT_5.8.8

I'm trying to install Munin on a new VPS through yum install munin but I keep getting an error about a missing perl module: Requires: perl(:MODULE_COMPAT_5.8.8). This is the perl version currently ...
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1answer
325 views

Munin : aggregate network traffic

I have a default configuration of munin-node on 3 of my servers, and I would like to create a summary chart that displays total output bandwidth. Here is what I have done minin.conf : ...
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1answer
62 views

Munin: make plugin output depend on querying master

I have a Munin supersampling plugin which returns high resolution data (sample rate of 1 second). The node offering this plugin is queried by two Munin masters, one of which is a version 1.4 instance ...
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2answers
666 views

Munin - 'by week/month/year' to use the total, rather than the average values?

I have some custom munin graphs that measure an aspect of our sales in our webapp. So I measure "Number of sales so far today". The graph goes up and then reset to 0 at midnight. This is what I want. ...
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1answer
73 views

Munin graph Disk IOs for /dev/sda k unit interpretation

From Munin diskstats plugin Disk IOs for /dev/sda graph shows Max IO/sec -read/+write 1.75k/920.92. What does the k unit in Disk IOs graph mean?
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2answers
2k views

Munin email notification

I am trying to get munin to notify me via email. I have configured munin and it reports critical and warning values but no alerts are being sent neither is any script being called. Can you please ...
0
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1answer
91 views

How to query a munin plugin via netcat?

I want to query a present Munin plugin from Nagios. As I would like to do some calculations and aggregations (the plugin reports data over a period of time) and not just look at the last values, the ...
1
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1answer
192 views

Munin 2.0 vs 1.4

Munin came out with a new major release (2.0). It is, however, not easy to see what has changed. I've checked the main site, the FAQ and the Documentation, but nothing found. There's the Changelog, ...
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0answers
40 views

management network to a network port for additional ones munin and monit [closed]

management network to a network port for additional ones munin and monit I want to build a separate Netzwek for server management. I have several network cards a linux / debian / ubuntu with ...
1
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1answer
44 views

munin-node apache_ with basic authentication - please be more specific

Can someone please explain this to me: In this answer: munin-node apache_ with basic authentication there is a line saying: If you need authenticated access to the URL you can specify the ...
0
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1answer
304 views

syntax error: unknown user 'munin' in statoverride file

Server running Ubuntu 12.04 lts I installed munin the other day on a server. I decided later to remove it with apt-get. I noticed that not everything was removed from the installation so manually ...
2
votes
1answer
105 views

Alert if munin-master contact node

I have installed munin on one of my servers, and munin-node on another server I wish to monitor. I would like an alert if for any reason the node can't be contacted by the master. Is it possible to ...
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0answers
132 views

Munin plugins for monitoring software RAID?

Are there any good munin plugins for monitoring a RAID10 array, in more detail than the default munin-nodes-extra set?
0
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1answer
53 views

munin-node send data to more than one master?

I'm in the process of making everything on our server setups redundant, and so comes the monitoring. We have one virtual machine acting as munin master and all other virtual machines are munin nodes ...
2
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0answers
195 views

Munin disable dynazoom.html

Doing a quick google search for "Munin dynazoom.html doesn't work" yields many results. There doesn't seem to be a solution that works -- at least not that I have seen. I have munin installed on a ...
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1answer
77 views

Munin mysql plugins results inconsistent, with IPC::Sharelite store() error: Identifier removed

I've recently setup a munin-node on a CentOS server. All was working fine until I tried to add the apache plugin (which works fine). For some odd reason, the mysql plugins for munin that used to work ...
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1answer
101 views

Munin UNKNOWN spamming

By adding unknown_limit 50 to munin.conf I've been able to drastically decrease the number of emails I receive from hosts that generate an otherwise acceptable level of UNKNOWN values. The problem is ...