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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2
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1answer
476 views

Can't get IPMI sensor data

I have SuperMicro 1U 6016T-MTHF with Winbond WPCM450 BMC server. Here's my problem: root@foo:~# ipmitool -I open sensor FAN 1 | 8281.000 | RPM | ok | 400.000 | 576.000 | ...
2
votes
1answer
242 views

How do I get Apache stats into munin when proxied from nginx?

I have munin plugins for mysql and nginx working, but, I'm not sure how to get the apache plugin working (it's there, I just haven't setup apache yet). nginx proxies requests to apache running django ...
2
votes
1answer
490 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 ...
1
vote
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 ...
1
vote
1answer
792 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 ...
1
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4answers
1k views

Installing Munin on Centos 6

I've hit problems installing munin on Centos 6. This seems to be a conflict between parts of Perl. I think the version of Perl is newer on Centos 6 (v5.10.1) When installing munin via yum I get ...
0
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2answers
409 views

Munin's graphic about Interrupts and context switches through the roof

I realized that sometimes one of our servers monitored by Munin had a strange graphic of "Interrupts and context switches". The server have a Xeon 5560 (8 cores) with 8gb of RAM. At rush hour, the ...
1
vote
1answer
236 views

How to send report created by Munin to email once per week

I have a page with Munin reports and I want to send the email with graphs once per week on specific email. Any thoughts on how to achieve this? Thanks!
0
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1answer
3k views

nginx + munin “internal redirection cycle”

I have an SSL domain that runs nginx, and I want to be able to access my munin graphs/stats on that domain. So, in the domain's server block, I added this: location = /munin/ { alias ...
1
vote
1answer
164 views

Disk IOs spikes at set times in CentOS

I recently installed Munin on my servers. Now 2 of my machines show big spikes in DiskIO at the same time, everyday at 4am. I run Centos 5.6 (64bit). I've checked my cron logs, and I have no personal ...
0
votes
1answer
136 views

If a Munin plugin fails, nobody gets notified. Why is this so?

I've built a bunch of munin plugins that monitor various back-end services. If the metrics dip below thresholds set in munin.conf, we're notified by email. However, if one of these services goes down ...
1
vote
1answer
140 views

Why is my munin plugin being double executed (concurrently)?

I have a custom made munin plugin that currently is being executed twice every time $ ps fax 16844 ? Ss 0:00 /usr/sbin/munin-node 18206 ? S 0:00 \_ /usr/sbin/munin-node 18863 ...
5
votes
2answers
214 views

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
vote
1answer
362 views

Munin cdef problem

I'm getting nuts writing a simple plugin to query my ehcache statistics. Look what i have so far: $ munin-run ehcache standardquerycache_cachehits.value 1779609 standardquerycache_cachemisses.value ...
1
vote
1answer
380 views

How to configure Munin to montior Microsoft SQL Server 2008

Is it possible to configure Munin to montior Microsoft SQL Server 2008? On Windows 2003 Server.
1
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3answers
2k views

How to monitor HTTP response error codes from nginx using munin?

I'm beginning to use Munin to monitor an in-production Nginx server. One thing I'm particularly interested in graphing is the rate of errors--HTTP responses with codes in the 50x range. I'm wondering ...
0
votes
1answer
238 views

munin-node in openvz-container not reachable from host-system

I have a problem figuring out why my openvz-container is not reachable from the outside (host-system) on port 4949. netstat in the container: [root@openvz ~]# netstat -utapn |grep 4949 tcp 0 ...
0
votes
1answer
127 views

Add marks at specified times on a Munin graph

I want to mark some events on my Munin graphs to see how the graphs change at these points. It seems that in RRD terms they can be created by VRULE command, but I can't find a way to use it with ...
0
votes
2answers
410 views

Collectd agent, Munin master

For monitoring and graphing of servers and services, I would like to make a setup where collectd is the agent, collecting the data on the server, and munin is on the monitoring server, collecting the ...
0
votes
1answer
591 views

Munin Aggregate Graph

I am trying to aggregate munin graphs (http://munin-monitoring.org/wiki/aggregate_examples) for my nginx_request plugin (http://exchange.munin-monitoring.org/plugins/nginx_request/version/2) The ...
3
votes
3answers
896 views

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 ...
1
vote
1answer
336 views

Problem: Munin Graph

I've been trying to install Munin for 15 days, I looked for information, analized logs, I even deleted and reinstalled Munin using YUM. I'm hosted at Media Temple on a VPS with CentOS. The problem is ...
1
vote
2answers
376 views

Best plugin for tracking Apache response codes with Munin

I'd like to monitor the rate of 404, 403, 500 etc errors in my Apache logs with Munin but I can't find a plugin to do this. Surely it exists?
1
vote
1answer
84 views

is there any problem with my server

Below is a Munin Service Monitor screenshot for netstat by day which have a lot of failed connection. so I need to know is this a serious issue?
4
votes
1answer
238 views

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.
0
votes
0answers
264 views

Moved munin to new server, and now I get “no nodes with any plugins”

I followed the following page: http://munin-monitoring.org/wiki/FAQ_no_graphs, but I still can't get it to work. Can anyone help? Notice below I only get a period for a reponse. I am pretty sure it ...
0
votes
1answer
540 views

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 ...
0
votes
1answer
105 views

VPS (LAMP) Runs out of memory every so often

I have a VPS on CentOS 5, running LAMP. Twice now in the last 3 months the server has had to be rebooted due to being out of memory. Downtime ends up being an hour, before someone can look at it. I ...
0
votes
2answers
1k views

Munin access to MySQL

According to several tutorials, the following should work: Create a new user in MySQL. $ mysql -uroot -p > CREATE USER 'munin'@'localhost'; > exit; Use that user in munin to access the ...
6
votes
3answers
4k views

Better/alternate front-end/graphs for munin?

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
vote
0answers
2k views

Installed Munin on CentOS, but it does not generate data

I've installed Munin on CentOS, in Munin directory, it only has a few files and I could not see the website data. The Munin log shows the connection to 127.0.0.1 was refused. I have tried to disable ...
3
votes
3answers
2k views

Removing a spike from RRDTool database

I've got an RRDtool graph that has a huge spike after a reboot. I've tried using the popular removespikes.pl script on it, but just returns a "No peaks found.!". What's the best way to take care of ...
5
votes
5answers
6k views

I need to replace munin with something more scalable

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 ...
3
votes
2answers
2k views

Monitoring Nginx vhosts with Munin

I've set up Munin and so far, loving it. I got some basic Nginx monitoring set up and am able to monitor Nginx's status and RAM usage (with stub_status compiled into Nginx and activated in the ...
0
votes
1answer
373 views

How to interpret these munin stats of nginx?

The following stats are from a site where nginx was placed in front of a webserver to deliver static files and let the CMS application on the legacy webserver focus on the dynamic work. This is done ...
0
votes
1answer
135 views

Possible causes for large drop in measured firewall throughput

We run our application on ec2 and use Munin to monitor various metrics. We do a bi-weekly fresh deploy on new ec2 + rds instances. After our most recent fresh deploy, we noticed a 4x reduction in the ...
1
vote
1answer
399 views

Trying to move munin master from one debian server to another

I am trying to move munin master node from one debian server to another and preserve the history graphs, how could I proceed (maybe someone can write the instruction on munin wiki website). Regards, ...
2
votes
1answer
673 views

How to migrate Munin graph history

I have a pretty basic munin configuration, with a host in my munin.conf like this [old;name] and a Plugin, that gives host_name: name I changed the munin.conf to [new;name] the host_name in ...
1
vote
1answer
306 views

Disable graph_total in Munin Graphs

Is there any way to disable the graph_total for a Munin graph? For example, the apache_processes plugin generates a "total" line that becomes meaningless when there are multiple ports monitored. I'd ...
0
votes
1answer
1k views

Munin node not listing any plugins on new Fedora 14 installation

I have just installed munin-node from the base repo on Fedora 14 and then started it. I found that my munin server is not able to collect data from this node so I tried connecting via telnet to test. ...
2
votes
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 ...
2
votes
1answer
2k views

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: ...
0
votes
1answer
281 views

Munin FW_Conntrack Timing Out

I recently installed CSF firewall. Immediately after this, my Munin has stopped showing me graphs for Connections through firewall and ipconntrack. I looked into log files and found this ...
1
vote
2answers
3k views

Configure Munin graphs to show different time periods

I'm running a server with Munin installed through WHM cPanel. I've been googling around and I can't seem to find out how to do the following: A: Change a graph to show a different time period ...
7
votes
2answers
2k views

Munin graph size

Munin graphs is very small. That makes some multigrpahs useless for me. Is it possible to increase graph image size?
0
votes
1answer
662 views

RPM ERRORs on a cloud CentOS 5.5 server

I am attempting to add an rpm repo in order to Yum install a Munin node, however i keep getting the following error: rpm -Uvh ...
4
votes
1answer
4k views

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 ...
1
vote
2answers
448 views

Monitoring System for the cloud?

I need a monitoring system, much like ganglia / nagios that is build for the cloud. I need it to support : Adding / removing nodes dynamically. (Node shuts down, dose not imply node failure...) ...
1
vote
1answer
345 views

Apache Munin Graphs / Mod-Server-Status: Why Would There Be A Spike In Proceses But Not A Spike In Accesses

Our system just suffered through a huge surge in connections. Our load balancer graphs reflect this surge in connections. Netstat graphs reflect this surge in connections. Our Apache Processes ...
2
votes
2answers
1k views

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 ...