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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95 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 ...
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290 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
300 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 ...
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1answer
51 views

Linode Munin Nodes

I have 3 servers in Linode. All of them are configured with private lan network. All 3 are able to ping each other. I have install a Munin master server in one of them and Munin node to all of them. ...
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1answer
170 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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122 views

Munin Limits on COUNTER and DERIVE Data

For Munin plugins of COUNTER and DERIVE type, what values should I use for ${name}.warning and ${name}.critical values?
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2answers
273 views

Munin's load plugin does not appear

I just did a fresh install of Munin 2.0.6-4 on a Debian 7.1 server from the debian repositories. The "load" plugin appears as loaded: # munin-node-configure | grep load load | ...
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1answer
1k views

I have setup munin how do I set up alerts for specific parameters

I have setup alerts in munin.conf contacts user1 user2 user3 user4 contact.user1.command mail -s "Munin notification" mailid1@mydomain.in contact.user2.command mail -s "Munin notification" ...
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76 views

Munin Interpretation - Server Limits

I've installed Munin to monitor my debian (squeeze) webserver (2 x Intel Quad Xeon 4x2.66GHz, 16GB RAM, 2x1000GB HDD Raid). There are around 50k visits per day. The scripts are very simple and there ...
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2answers
998 views

No Graphs available in Munin

I have a problem using munin (on Ubuntu 10.05 LTS). No graphs are available. Instead, an image placeholder is shown. I tried different settings, but it does not work. I used ...
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1answer
115 views

Using munin for server monitoring

I want to use munin for monitoring my VPS servers. I'm just interested is it possible to use it without apache installing? So is it possible to install only munin-node on each node I want to monitor ...
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1answer
272 views

“sudo: no tty present” for munin plugin using password-less sudo

I am writing a plugin for munin to monitor something on our Ubuntu Linux server (which is on Amazon EC2). The plugin requires running a programme /usr/sbin/rabbitmqctl via sudo. I have the following ...
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136 views

How to determine if you need to upgrade memory?

My CentOS server's munin graph shows high swap, but the amount of apps memory seems low. Does this still mean I need to upgrade my memory? What is causing all that swap? Is it because of the ...
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2answers
46 views

How to export list of hosts in Munin?

I have inherited a Munin installation and I want to make a list of all the monitored hosts. Is there a command or other way to export a list of all monitored hosts to CSV or XML?
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1answer
164 views

munin fw_conntrack going bananas after dist upgrade to debian wheezy

after i upgrade from squeezy to wheezy munin began doing sth weird. it seams as if it only keeps adding the numbers and does not show the current value but only the cumulative values... by the ...
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1answer
819 views

How to make munin graph (derive or counter) not per second?

I have values: 10:00 - 505 11:00 - 507 12:00 - 510 13:00 - 525 and i want get graph: 11:00 - 2 12:00 - 3 13:00 - 15 but have per second(munin run every 5 minutes): 11:00 - 2/300 12:00 - 3/300 ...
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1answer
50 views

How to set up HTTP authentication to Munin?

Today I installed and configured Munin on my server. I didn't like how it shows all those graphs without having any login system nor authentication. Is there a way to set up an authentication to ...
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1answer
851 views

Munin in a subdomain using Apache Virtual Host

I'm trying to install Munin in my server and configure the web interface to work in a subdomain. I've configured the subdomain stats.mysite.com and created the file ...
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2answers
121 views

set — $(cat /proc/loadavg)

Hi I have a munin plugin that does this load_fetch() { set -- $(cat /proc/loadavg) cat <<EOF ...
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1answer
865 views

Postfix Plugins for Munin not working

I have a fresh munin (system monitor) installation on a FreeBSD 9.1 machine up and running fine. Now I wanted to include our Postfix server on the same machine in munin, so I tried to run the standard ...
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1answer
135 views

munin aggregate graph problems

Munin is driving me crazy. I'm trying to get an aggregate graph working. Here is my conf file: [Mydomain;machine-1] address xxx.xxx.xxx.xxx use_node_name yes [Mydomain;machine-2] address ...
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1answer
96 views

How can I get Munin to generate image source paths properly?

I'm having trouble with Munin's comparison pages. All other pages work just fine. What happens is that the relative URLs it is generating for the img src parameters are wrong. In the snippet below you ...
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1answer
684 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
323 views

How do I configure munin to show separate graphs for virtual hosts on a single server?

I have a machine with several virtual hosts. How do I configure munin and munin-node to break up the network traffic/bandwidth by virtual host? i.e. vhost1.example.com, vhost2.example.com where both ...
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3answers
6k views

How to export munin raw data to CSV?

I'm monitoring my Debian GNU/Linux server with Munin monitoring software. I was wondering whether I could export the raw data used to generate Munin charts? I want to do some in-depth statistical ...
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1answer
260 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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3answers
362 views

Passively monitor IO wait spike on process level

We use munin and monit to keep track of general stats about our vps, in last a couple of weeks, we have been running into issues where random IO wait spike is killing our server performance. Since ...
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2answers
194 views

PHP scripts time out but regular pages are snappy

I'm having a strange issue with nginx and PHP-FPM. I have a server set up to serve downloads for my website. It's not very beasty, it's only a Celeron G530 and 4GB of RAM, because of this, I'm running ...
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174 views

reallocate pending sector smartctl

smartctl is reporting smartctl_exit_status 64 after there was a current_pending_sector, so i think the data isn't still reallocated and i have to do it myself? munin graph can be found here munin ...
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1answer
264 views

How to operate the plugin of munin membyuser?

I can not run this plugin membyuser The graph is not shown eg screenshots munin-node is configured as follows: /etc/munin/plugin-conf.d/munin-node ... [membyuser] env.USERS user1 user2 user3 user4 ...
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1answer
140 views

munin network unit false in traffic graph

I've got 4 network interfaces eth0, eth1, eth2, eth3 monitored by the munin 1.4.5 if_ plugin. On eth0 the graphs show realistic value for the traffic (800kpbs) On all the others interfaces the ...
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1answer
161 views

Any way to get munin plugin output to dstat?

The two tools are great with plugins and many available out of the box metrics. I was wondering if there is a way to get output of munin into dstat or a similar tool (real time output vs munin's ...
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1answer
1k views

Munin Apache graphs have disappeared

I'm running Apache2 and Munin on Ubuntu 12.04. All of my Munin graphs are showing up fine (cpu, memory, etc.), except for the Apache graphs. The Apache graphs were working at one point, which you ...
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1answer
138 views

How to monitor a remote Postgresql Amazon EC2 database through Munin?

How can I monitor a remote postgresql database on Amazon EC2 using Munin? I would like to graph the number of reads, writes, and total database operations.
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1answer
269 views

configuring Munin for Nginx 1.2.4 on ubuntu 10.04 ubuntu ec2 instances

I am running my ruby on rails app ubuntu 10.04 ec2 instance and I am using nginx 1.2.4. I am trying to configure munin to get stats fron nginx, I have recompiled nginx and its working fine but I am ...
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0answers
375 views

How do I install Munin from source on Ubuntu?

I'm trying to install Munin 2.0.10 from source on Ubuntu. I followed the instructions, which say download the tarball, edit the config, then run make and make install and "this will install ...
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2answers
2k views

Munin throwing errors with fresh install

I just installed munin on a fresh ubuntu system, munin node throwing the following errors: 2013/01/30-21:10:02 CONNECT TCP Peer: "[::ffff:127.0.0.1]:39316" Local: "[::ffff:127.0.0.1]:4949" Use of ...
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1answer
63 views

Graphing data in munin, need to ignore already seen values

I am trying to graph how many ms a REST command is taking. The command is issued many times a minute. Here is the plugin that I wrote: #!/bin/bash # # Collect stats for the timing of ...
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1answer
328 views

How can I debug why Munin won't talk to Nagios?

I've followed the instructions to connect Munin to Nagios. NSCA is installed, echo -e "foo.example.com\ttest\t0\t0" | /usr/sbin/send_nsca -H localhost -c /etc/send_nsca.cfg works when run as the ...
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263 views

Monitoring Apache with Munin - what am I doing wrong in my Apache configuration?

I am monitoring a server with Munin. Everything but Apache is reporting nicely. My Apache graphs are empty. I have edited apache httpd.conf to switch ExtendedStatus On. I have then edited my ...
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1answer
268 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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2answers
683 views

How can I tell if a port is accessible on an Ubuntu machine?

I have an Ubuntu machine, and I've been trying to set up Munin on port 4949. I have it running, and I can connect to port 4949 from the local machine, but connections from external machines keep ...
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2answers
188 views

Restore min/avg/max graphs in Munin 2

I just migrated from Munin 1.4 to Munin 2.0.6 on Ubuntu Server 12.04 LTS. The weekly graphs no longer show min/max values, only the avg. How do i get those back? Thanks Maciej
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1answer
290 views

How to run munin-node on SmartOS Global Zone?

I'd like to run munin-node on my SmartOS Global Zone, to remotely monitor hardware and software status. I've tried pkgin in munin-node-1.4.5, but installation fails because it can't create the munin ...
1
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1answer
237 views

Should Munin sit in /var/www/munin or /var/cache/munin/www?

I've just installed Munin for the first time in around twelve months, and I've hit a familiar error. I remember from last year that there is an oddity where Munin wants to keep its html files in ...
4
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2answers
675 views

Munin's smart plugin keeps reporting an error in the past because of the exit code

My hosting provider has inserted a hard drive into my server which seems to have had some sort of error in the past but a full offline smart check showed that everything is (about) ok at the moment. ...
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0answers
93 views

Cross-referencing charts (e.g. munin) with log files

Is there a charting package like Munin (or an addon for it) that will let me click on a graph period and then see all the logs on that box for that period? e.g. if I see a huge spike in disk I/O 12 ...
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1answer
318 views

Munin load from several servers in same graph

I'm attempting to compare load averages from several severs using using Munin 1.4.6-3ubuntu3 by combining multiple hosts in a single graph. My attempt: [domain.com;Totals] load.graph_title Load ...
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1answer
565 views

Munin plugins for Apache Solr 4.0+?

We have just started using Apache Solr 4.0.0 on Linux on a internal project, after having deployed Solr 1.4.1 and then 3.5.0 for a few years now. From my searches, it would seem that most people are ...
3
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1answer
482 views

Reduce munin logging level

Munin is quite verbose, and logs a bunch of things into munin-graph.log, munin-html.log, munin-limits.log and munin-update.log at each run of munin-cron. I already reduced munin-node logging level by ...