0
votes
1answer
38 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 ...
0
votes
2answers
75 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 ...
1
vote
0answers
43 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 ...
0
votes
1answer
462 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" ...
2
votes
1answer
170 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 ...
0
votes
1answer
116 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 ...
1
vote
1answer
194 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 ...
0
votes
3answers
253 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 ...
2
votes
2answers
155 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
0
votes
1answer
438 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 ...
1
vote
1answer
112 views

The plugin of munin is always timed out

I want to use munin to make a graph of ttyACM0 in Linux, but munin can not create the graph. I found some information in "munin-node.log". it shows that "Service 'temperature' timed out". So I changed ...
2
votes
2answers
1k views

How can I configure Munin to give me a “total” view of all my cloud servers?

I have a dozen load balanced cloud servers all monitored by Munin. I can track each one individually just fine. But I'm wondering if I can somehow bundle them up to see just how much collective CPU ...
3
votes
1answer
259 views

How to investigate peak in MySQL throughput?

Recently one of our servers has ran out of memory and crashed. After reviewing the munin graphs, it appears that the only metric (other than memory usage) that peaked just before the crash was the ...
2
votes
1answer
547 views

How to optimize munin fw_conntrack script

I have a server with about 65k connections in ip_conntrack. How can I optimize munin script that counts various types of connections (default fw_conntrack script): cat /proc/net/ip_conntrack | awk ' ...
0
votes
1answer
434 views

Munin graphs are broken

My munin graphs all of a sudden display n/a I tried removing the RRD files, but they still display n/a. I've run munin-check and it says it's ok. How do I reset munin or what can cause this ...
4
votes
0answers
272 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: ...
4
votes
1answer
3k views

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 ...
5
votes
1answer
2k views

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 ...
4
votes
4answers
547 views

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 ...
1
vote
2answers
486 views

How to read the scale of the munin monitoring system, tomcat accesses by day graph

The tomcat accesses by day graph in munin has a y axis that shows "accesses / second", and currently shows "66 m". It can't be 66 million accesses per second, a single server couldn't return that ...
2
votes
1answer
558 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
564 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
86 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?
0
votes
1answer
110 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
1answer
144 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 ...
0
votes
1answer
714 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 ...
1
vote
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 ...
0
votes
1answer
138 views

Munin graph shows 3 Upgradable security packages (red alert) but apt does not install them

I'm using this munin plugin : http://exchange.munin-monitoring.org/plugins/apt_ubuntu/details The server is an ubuntu 10.04 up to date. So.. This is my munin server, which on its own munin graph ...
2
votes
2answers
383 views

How to clean a garbage value in Munin

After I rebooted one of my servers, Munin (which runs on another server) seems to have picked up some garbage response from it in the process of rebooting. ...
0
votes
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 ...
0
votes
1answer
2k views

Having munin server monitoring problem: Graphs not being generated

When I run munin-cron (munin-cron --debug), I get the following error: 2010/05/10 13:39:01 [WARNING] Call to accept timed out. Remaining workers: archstl.org;archstl.archstl.org 2010/05/10 13:39:01 ...
3
votes
3answers
1k views

Munin “Available entropy” when using address space layout randomization

Having just configured Munin for statistics logging on my gentoo server (hardened profile), I am noticing that my "Available entropy" is consitently in the 200-300 range. This seems way to low, so I ...
2
votes
1answer
195 views

Munin with intermittent clients

I'm currently using munin to monitor a bunch of linux servers (as well as a few WinXP clients). However, munin does its data collection sequentially, and seems to be very susceptible to timing out ...