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.
331
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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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6
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How to reset munin graphs
I'd like to reset all graphs for a certain host in Munin. Anyone who knows how I can do this?
- 1,405
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2
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what does the 'm' unit in munin mean?
I'm using munin as a tool for monitoring my servers. On some of the graphs, the units are marked with a 'm'. For instance, my apache accesses graph is labeled 100m, 200m, 300m, along the y-axis. What ...
- 603
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Change a Munin server and keep the data
We are migrating some servers, and we need tp change our Munin server. Most of the Munin nodes are not changed, and we would want to keep track of the historical data, if possible.
I can set up a ...
- 263
13
votes
1
answer
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Interpreting munin graph and committed memory
I've been noticing that my server has been using swap a quite more often now but I can't seem to figure out why. The munin graph shows that the apps memory usage is about 0.7G out of the 1.5G. The ...
- 577
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6
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Nginx Munin plugin shows no data
I would like to monitor NGinx stats through Munin but the Nginx plugins show no data. Is it possible to diagnose why only one of the munin nginx plugins seems to be working?
The server runs on CentOS ...
- 1,779
12
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1
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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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10
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2
answers
4k
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Munin graph size
Munin graphs is very small. That makes some multigrpahs useless for me.
Is it possible to increase graph image size?
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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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6
answers
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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 ...
- 213
9
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6
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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 ...
- 3,583
9
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1
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Can someone explain the "use-cases" for the default munin graphs?
When installing munin, it activates a default set of plugins (at least on ubuntu). Alternatively, you can simply run munin-node-configure to figure out which plugins are supported on your system. Most ...
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Can Munin be configured to display hourly graphs?
By default, Munin (I’m using 1.4.5) shows graphs for the day, week, month, and year.
Can I configure it to additionally display an hourly graph?
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2
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663
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How to disable updates for a host in Munin but keep the historical graphs?
I need to disable updates for a particular host but I want to keep the graphs for historical data.
I've tried using update no on the host definition in munin.conf but that removes the host from the ...
- 1,667
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5
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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 ...
- 11.4k
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4
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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 ...
- 407
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1
answer
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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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6
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2
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8k
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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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1
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Munin-node plugins on Debian 10 cannot read from home directories. Debian 9 works fine
I am on a completely default Debian Buster installation. I have installed munin-node, which reports itself as version 2.0.49.
I have a custom plugin in /etc/munin/plugins. It is a shell script that ...
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3
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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 ...
- 61
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4
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What metrics should I monitor on my Linux-server?
I've been tasked with setting up monitoring of 300 servers, doing different things. I've been looking at various tools, such as Nagios, Munin, and others - so I got a pretty good idea on how I can ...
- 4,213
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1
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Munin dynamic graph zoom (dynazoom) not working (Nginx, PHP-FPM)
Debian 7.5
Nginx/1.6.0
PHP 5.6.0RC2 (fpm-fcgi) (built: Jul 11 2014 08:17:52)
Munin v2.0.21-2
I been searching all over the net for a few days for answers to my problem but it seems like no one knows ...
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6
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3
answers
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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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2
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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. ...
- 338
6
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1
answer
1k
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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 ...
- 2,245
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3
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Showing a longer timespan in Munin
I was wondering if it is possible for Munin to store and display data for longer than a year?
I did Google around a bit, without much luck.
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4
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Better/alternate front-end/graphs for munin? [closed]
I have a munin setup running and I'd like to leave my munin-node setup untouched while getting a longer and more detailed view of the logged data. I want to keep all logged data indefinite. An ideal ...
- 1,075
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1
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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 ...
- 5,317
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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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How to change Munin's graph colors?
I started to use Munin for monitoring, but I would like to change colors of the graph, which are drawn by the plugin loggrep.
Is there any way to specify colors in the config file?
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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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3
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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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3
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Munin : notification when everything is ok
I use one Munin-Master to monitore 20+ servers, all run fine, except for one server. Last three Munin mails receveid :
05h25
infra :: backup2.infra :: Disk usage in percent
OKs: /var is ...
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1
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Interpreting Munin graphs showing available entropy and MySQL slow queries in sync
We're experiencing performance issues on our website, and after reviewing our munin graphs, the only metrics we've found in sync are Available entropy and MySQL slow queries, with the latter ...
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4
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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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votes
1
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HTTP response time profiling
I have a nginx reverse proxy. The server is close to serving 600-700 requests per second. I have a Munin HTTP load time plugin which is outputting this:
http://monitor.wingify.com/munin/...
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Bash-Scripting - Munin Plugin don't work
i have written a munin-plugin to count the http-statuscodes of lighttpd. The script:
#!/bin/bash
######################################
# Munin-Script: Lighttpd-Statuscodes #
########################...
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4
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How to determine which processes have most inodes opened
Here is my problem, visibile in a munin chart:
My used/opened inodes are "suddenly" constantly increasing.
Is there a way to determine which process is keeping the most currently opened inodes?
I ...
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1
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Munin aggregate graphs are not working
I know this has been asked in several times on many forums before, but still I am struck with similar problem.
Individual graphs are working fine however, aggregate graphs are not. I don't even get ...
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Does jmxremote affect tomcat performance?
I'd like to enable jmxremote to monitor Apache Tomcat resources utilization with Munin, but I want to know if this will affect the servers performance, is so, how much will it be impacted.
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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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4
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1
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605
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Munin: Why is the utilization by month higher than by year?
I just learned about Munin and I checked out some example diagramms. I don't get how the utilization by month is at about 60% and the utilization by year says its bellow around 10%. I would expect ...
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3
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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 ...
Prashanth
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2
answers
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Munin - Load old/historic data from a database to prepopulate the graphs?
I have a Munin setup that monitors some data from our database about the number of sales. My munin plugin extracts this data from the database with a query. I could run this query for any time in the ...
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1
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Apache graphs and data not updating in Munin on Ubuntu 14.04
So I am rebuilding a server from Ubuntu 12.04 to Ubuntu 14.04; not doing the upgrade path because I would rather build from scratch in this case. I have installed Munin as I have done before in Ubuntu ...
- 3,571
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4
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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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3
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Munin Aggregate Graphs from several servers
I am using DNS round robin load balancing and have divided my total traffic onto multiple servers. Each server does around 300-400req/second but I am interested in having an aggregate graph telling me ...
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1
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How do I silence one of Munin's plugin warnings?
I have a server running backups from various servers concurrently and get a lot of "Write IO Wait time" warnings. Is it possible to silence the warning of a single plugin on a single host?
I think it ...
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1
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Munin Disk Latency Alerts
I have setup my Munin server and alerts and have tested them aswell. I have set the alerts for disk usage as under:
df._dev_mapper_centos_root.warning 90
df._dev_md126p2.warning 90
df._dev_md126p1....
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how to get a total bandwidth graph in munin
I have munin-node in a basic default configuration on all my servers, I would like to create a summary chart that displays total bandwidth in/out http and another chart showing total bandwidth in/out ...
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