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 is the Munin server giving just 404 status when hitting /munin-cgi/munin-cgi-graph?

I am using an Amazon Linux distribution (a recent one). I'm trying to install munin in the local node (just one node, both node and master). So I tried: $ sudo yum install munin munin-node httpd ...
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1answer
19 views

Exclude field in munin chart

I have written my first Munin plugin to monitor my WAN traffic at home. The chart includes the actual traffic (as DERIVE) and the maximum possible speed (as GAUGE) for my Internet connection. I want ...
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1answer
15 views

Munin disk utilization calculation.

I have got intel ssd(series 530, 480gb). Data from intel site: Sequential Read - 540 MB/s Sequential Write - 490 MB/s Random Read - 48000 IOPS Random Write - 80000 IOPS Current load is about 5000 ...
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2answers
2k views

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
891 views

MySQL per user monitoring

Is there a tool for monitoring per user MySQL usage? Like number of queries for example. I have been looking on Munin which I currently use, but did not find anything. A similar tool is the per user ...
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1answer
903 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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2answers
1k 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
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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6answers
3k views

Are there any tools for monitoring individual Apache virtual hosts in real-time?

I'm looking for a way to monitor and record Apache traffic, separated by virtual host. I am currently using Munin to capture this and other data for the entire server however I can't seem to find a ...
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3answers
1k views

Munin Graphs - Have one graph/plugin only update once per hour?

I am writing a custom munin plugin/graph and it's slightly computationally expensive. It's also unlikely to change much in a few minutes. Is it possible to have this one graph/plugin only update once ...
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1answer
15 views

Munin not warning on trespassing warning level

I have a Munin installation which surveils a bunch of servers. Two of them have MySQL replications running of which Munin plots the slave lag by use of mysql_slave_status. [mysql-slave.nmk.loc] ...
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1answer
11 views

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 ...
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3answers
1k views

Munin not creating HTML files in Ubuntu Server 14.04

I have used munin in several servers and this is the first time is taking me so much time to set it up. When I telnet munin directly, I can list the services, there is no error at the logs and munin ...
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1answer
184 views

CentOS 7 /proc/net/ip_conntrack: No such file or directory

yesterday I must hard-reset my server and from the reset I can see the following problem in the munin-node.log: 2015/04/28-04:10:02 CONNECT TCP Peer: "[::ffff:127.0.0.1]:58663" Local: ...
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0answers
158 views

CentOS 7 httpd /server-status limitations

I have got VPS (using CentOS 7 as my OS) and now I am configuring Munin (monitoring software). I ran into a little problem with Apache monitoring. Now I have got this cfg in my httpd.conf and ...
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28 views

404 error Munin and Vestacp

So we are using VestaCP as our control panel for our clients hosting. I am having a small issue with installing and running Munin. The reason we want to use it, is because we want to track when MySQL ...
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1answer
52 views

Load average increasing along with firewall throughput

I've just pushed a large change to my backend code and I've noticed a massive increase in the load average in the few hours since the push. I looked at Munin for what the problem might be and I ...
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1answer
30 views

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 ...
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1answer
55 views

How to setup monitoring of nodes behind firewall

As lame as it may sound: I am trying to configure monitoring for our production system which consists of 2 hardware boxes with ESXi on both and multiple VMs. All of this is hidden behind a firewall ...
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2answers
3k 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 help ...
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3answers
95 views

Innodb statistics

We're running InnoDB as a MySQL engine and using phpMyadmin to administer our database. Under Status → Query statistics, phpMyadmin gives us the following: We would like to know where these figures ...
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4answers
5k 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
409 views

munin + nginx: no dynazoom into graphs

I cannot get the Munin dynamic zoom to work. I am rather certain that the problem has something to do with the Nginx configuration. Any attempt to generate a zoomed graph triggers the following error ...
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1answer
21 views

Munin: do not notify state changes to OK

Munin-limits seems to trigger notifications for any state change (OK->CRITICAL, OK->WARNING, WARNING->CRITICAL) bidirectionally. Is there a way to prevent Munin from notifying returns to "OK"?
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1answer
734 views

Force Munin email notifications only on status change, not on update

I got Munin to notify me with email if certain values goes above my thresholds. This works very well and I am happy with it. However, there is a small glitch. If any of my values is in critical or ...
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66 views

Aggregate disk usage with Munin

I want to aggregate a total disk usage in percent of all my nodes with Munin. Actually I tryed : [streaming;Disk-Space] update no contacts no disk.graph_title Total Disk usage in percent ...
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62 views

Munin not graphin : “NaN”

I wrote a plugin for munin which basically fetches some numbers in a .log file and do an average of these values. When I run it with munin-cron or directly like this : # munin-run latency_news ...
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6answers
10k views

apache server-status not found. check if mod_status is enabled

I've enabled the apache_ plugins on a munin node: ln -sv /usr/share/munin/plugins/apache_* /etc/munin/plugins/ After restarting the node with service munin-node restart here are the errors I'm ...
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1answer
121 views

What to monitor (key indicators) on web and database server

I just installed Munin for monitoring my web and database server. I lot of plugins were included out-of-the box, but I could use some advice on which one is actually good key indicators to monitor. ...
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3answers
746 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
92 views

Munin not plotting all disks

I've inherited a fun munin set up, so this may end up being something weird. I've got a Windows Server 2008 server running "Munin Node For Windows". With the munin-server running on a separate linux ...
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56 views

Munin Windows Sum Stack graph

I am trying to stack multiple graph in one with munin. The idea is to stack all the web servers CPU graph into one graph. Munin configuration source graph: [WEB1.virtualservers] address ...
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4answers
19k views

Munin vs Nagios

We're currently using Nagios to monitor about 20 Linux machines (services and functional links). I just find out about Munin and I wonder if this is a Nagios replacement, or it can be used together ...
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194 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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1answer
468 views

SELinux: no audit errors but nginx permission errors

I try to isolate a SELinux problem with nging/munin. I see that error message in "/var/log/nging/error.log": [crit] 8802#0: *55 connect() to unix:/var/run/munin/fcgi-html.sock failed (13: ...
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1answer
1k 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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73 views

Nginx: proxy graphs from remote munin server

I'm trying to create, under a series of nginx hosted domains, a /graphs folder (so I'm trying to use proxy...) at which graphs from a remote munin server would be shown. The munin server is graphing ...
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1answer
172 views

Text in munin graphs corrupted

I'm having a problem in one of my servers, where munin is not able to write the text that accompanies each graph correctly. It is written as random squares, but I haven't found anything in the logs ...
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2answers
206 views

Export munin data, import it and rebuilt html and graph

I am trying to read data collected from a server to an other server. Reading Change a Munin server and keep the data seems show a way to do this. exporting rrd database using rrdtool dump importing ...
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2answers
2k views

Munin stopped updating

today at 02:20 I noticed that suddenly Munin stopped updating its graphs. It is not showing blank data, the whole graphs are not being updated anymore. I run CentOs 5.7 (64) and ive installed Munin ...
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1answer
344 views

Intermittent munin-cron error “There is nothing to do here, since there are no nodes with any plugins”

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: ...
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1answer
746 views

How can I use munin-node apache_ with basic authentication?

munin-node-configure --suggest tells me that the apache_* nodes cannot be used: apache_accesses | no | no [Port 80: Authorization Required] apache_processes | no | no ...
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1answer
2k views

How much memory can I safely assign to memcached?

I'm looking into using memcached on our server. We've just upgraded and now have a fairly powerful box: DELL PowerEdge R710 Linux RHEL 5 - 64bit 12GB RAM (We used to be on a 32bit 4GB box). The ...
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1answer
383 views

Suspicious Linux binary file in /tmp/ - Munin?

I have a CENTOS 6.6 x86_64 server running ConfigServer Firewall (installed by us) and Munin (installed by the datacentre). CSF has recently (and for no apparent reason) started sending us warnings, ...
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0answers
10 views

Interpreting Munin's memory graph high committed memory [duplicate]

I'm trying to make sense of these munin graphs I'm looking at, but I'm not sure what they're telling me. My Ubuntu Apache web server is crashing semi regularly and I can't tell why, but the big thing ...
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84 views

Munin CPU usage graph doesn't go all the way to 100% on a physical server

On a physical X86 server, the cpu's graph is not well draw. Basically the sum of all cpu's usages (system,user, nice, idle, etc) don't reach the 3200% (32 cores) See the image here I have already ...
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2answers
2k 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 ...
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71 views

Munin showing apache accesses per virtual host

I have different NameVirtualHosts defined in Apache2 running on debian wheezy. Munin is running and is showing me the apache accesses on "port 80". Every virtual host is writing its own log files and ...
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1answer
17 views

Increasing time window for Munin alert and don't send alert immediately

Let's say that I want to set load alert if load > 20 with Munin. However, Munin will immediately alert when the load spikes up to 20. Is it possible to adjust the alert integration time (time window), ...
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5answers
8k views

I need to replace munin with something more scalable [closed]

I have used munin on multiple servers for many years with great success, however with more than 100 munin-nodes and when there is load on the clients, the processing is timing out. I have made some ...